RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy10251
(151 letters)
>gnl|CDD|187641 cd08936, CR_SDR_c, Porcine peroxisomal carbonyl reductase like,
classical (c) SDR. This subgroup contains porcine
peroxisomal carbonyl reductase and similar proteins. The
porcine enzyme efficiently reduces retinals. This
subgroup also includes human dehydrogenase/reductase
(SDR family) member 4 (DHRS4), and human DHRS4L1. DHRS4
is a peroxisomal enzyme with 3beta-hydroxysteroid
dehydrogenase activity; it catalyzes the reduction of
3-keto-C19/C21-steroids into 3beta-hydroxysteroids more
efficiently than it does the retinal reduction. The
human DHRS4 gene cluster contains DHRS4, DHRS4L2 and
DHRS4L1. DHRS4L2 and DHRS4L1 are paralogs of DHRS4,
DHRS4L2 being the most recent member. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 144 bits (365), Expect = 8e-44
Identities = 66/148 (44%), Positives = 92/148 (62%), Gaps = 27/148 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L KVA++TAST+GIG AIA+RL+ +GA VV+SSRK+ NV++AV TLQ EG +V+G VC
Sbjct: 8 LANKVALVTASTDGIGLAIARRLAQDGAHVVVSSRKQQNVDRAVATLQGEG-LSVTGTVC 66
Query: 67 HVANTDERQKLFE--------------------------HCSEVVWDKIFDVNLKSSFLL 100
HV ++R++L +E VWDKI DVN+K++ L+
Sbjct: 67 HVGKAEDRERLVATAVNLHGGVDILVSNAAVNPFFGNILDSTEEVWDKILDVNVKATALM 126
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGGFKQF 128
T+ V+P M K+ GGS+V VSS+ F F
Sbjct: 127 TKAVVPEMEKRGGGSVVIVSSVAAFHPF 154
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 114 bits (289), Expect = 2e-32
Identities = 45/145 (31%), Positives = 67/145 (46%), Gaps = 28/145 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GKVA++T ++ GIG IA+R +AEGA VV++ R E + + G V
Sbjct: 2 RLEGKVAIVTGASSGIGEGIARRFAAEGARVVVTDRNEEAAERVAAEILAGG--RAIAVA 59
Query: 66 CHVANTDERQKLFEHC--------------------------SEVVWDKIFDVNLKSSFL 99
V++ + + E +D+IF VN+KS +L
Sbjct: 60 ADVSDEADVEAAVAAALERFGSVDILVNNAGTTHRNGPLLDVDEAEFDRIFAVNVKSPYL 119
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
TQ +P MR + GG+IV V+S G
Sbjct: 120 WTQAAVPAMRGEGGGAIVNVASTAG 144
>gnl|CDD|212491 cd05233, SDR_c, classical (c) SDRs. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 234
Score = 111 bits (279), Expect = 3e-31
Identities = 44/140 (31%), Positives = 70/140 (50%), Gaps = 27/140 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANT 71
A++T ++ GIG AIA+RL+ EGA VV++ R E + + G N V V++
Sbjct: 1 ALVTGASSGIGRAIARRLAREGAKVVLADRNEEALAELAAIEALGG--NAVAVQADVSDE 58
Query: 72 DERQKLFE-------------------------HCSEVVWDKIFDVNLKSSFLLTQEVLP 106
++ + L E ++ WD++ DVNL FLLT+ LP
Sbjct: 59 EDVEALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNLTGVFLLTRAALP 118
Query: 107 YMRKKKGGSIVYVSSIGGFK 126
+M+K+ GG IV +SS+ G +
Sbjct: 119 HMKKQGGGRIVNISSVAGLR 138
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 111 bits (280), Expect = 4e-31
Identities = 45/144 (31%), Positives = 64/144 (44%), Gaps = 26/144 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GK A++T ++ GIG AIA RL+A+GA VVI E L+ G + +V
Sbjct: 2 SLQGKTALVTGASRGIGRAIALRLAADGAKVVIYDSNEEAAEALAAELRAAGGE-ARVLV 60
Query: 66 CHVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLL 100
V++ R L SE WD++ DVNL +F +
Sbjct: 61 FDVSDEAAVRALIEAAVEAFGALDILVNNAGITRDALLPRMSEEDWDRVIDVNLTGTFNV 120
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
+ LP M K + G IV +SS+ G
Sbjct: 121 VRAALPPMIKARYGRIVNISSVSG 144
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 108 bits (272), Expect = 5e-30
Identities = 48/146 (32%), Positives = 74/146 (50%), Gaps = 27/146 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVETLQKEGHQNVSGV 64
+L+GKVA++T ++ GIG AIA+ L+ EGA VVI+ E + +E +++EG V
Sbjct: 2 KLMGKVAIVTGASGGIGRAIAELLAKEGAKVVIAYDINEEAAQELLEEIKEEGGD-AIAV 60
Query: 65 VCHVANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFL 99
V++ ++ + L ++ WD++ DVNL L
Sbjct: 61 KADVSSEEDVENLVEQIVEKFGKIDILVNNAGISNFGLVTDMTDEEWDRVIDVNLTGVML 120
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGF 125
LT+ LPYM K+K G IV +SSI G
Sbjct: 121 LTRYALPYMIKRKSGVIVNISSIWGL 146
>gnl|CDD|233590 TIGR01830, 3oxo_ACP_reduc, 3-oxoacyl-(acyl-carrier-protein)
reductase. This model represents 3-oxoacyl-[ACP]
reductase, also called 3-ketoacyl-acyl carrier protein
reductase, an enzyme of fatty acid biosynthesis [Fatty
acid and phospholipid metabolism, Biosynthesis].
Length = 239
Score = 101 bits (253), Expect = 3e-27
Identities = 46/140 (32%), Positives = 70/140 (50%), Gaps = 27/140 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSR-KESNVNKAVETLQKEGHQNVSGVVCHVAN 70
A++T ++ GIG AIA +L+ EGA V+I+ R E + VE L+ G + GVVC V++
Sbjct: 1 ALVTGASRGIGRAIALKLAKEGAKVIITYRSSEEGAEEVVEELKAYGVK-ALGVVCDVSD 59
Query: 71 TDERQKLFEHCSE-------VV------------------WDKIFDVNLKSSFLLTQEVL 105
++ + + E E +V WD + D NL F LTQ VL
Sbjct: 60 REDVKAVVEEIEEELGPIDILVNNAGITRDNLLMRMKEEDWDAVIDTNLTGVFNLTQAVL 119
Query: 106 PYMRKKKGGSIVYVSSIGGF 125
M K++ G I+ +SS+ G
Sbjct: 120 RIMIKQRSGRIINISSVVGL 139
>gnl|CDD|187594 cd05333, BKR_SDR_c, beta-Keto acyl carrier protein reductase (BKR),
involved in Type II FAS, classical (c) SDRs. This
subgroup includes the Escherichai coli K12 BKR, FabG.
BKR catalyzes the NADPH-dependent reduction of ACP in
the first reductive step of de novo fatty acid synthesis
(FAS). FAS consists of four elongation steps, which are
repeated to extend the fatty acid chain through the
addition of two-carbo units from malonyl acyl-carrier
protein (ACP): condensation, reduction, dehydration, and
a final reduction. Type II FAS, typical of plants and
many bacteria, maintains these activities on discrete
polypeptides, while type I FAS utilizes one or two
multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) NAD(P)(H) binding
region and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H) binding
pattern: TGxxxGxG in classical SDRs. Extended SDRs have
additional elements in the C-terminal region, and
typically have a TGXXGXXG cofactor binding motif.
Complex (multidomain) SDRs such as ketoreductase domains
of fatty acid synthase have a GGXGXXG NAD(P) binding
motif and an altered active site motif (YXXXN). Fungal
type type ketoacyl reductases have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P) binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr-151 and
Lys-155, and well as Asn-111 (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 240
Score = 100 bits (252), Expect = 5e-27
Identities = 42/142 (29%), Positives = 63/142 (44%), Gaps = 26/142 (18%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KVA++T ++ GIG AIA RL+AEGA V ++ R E K N + + V+
Sbjct: 1 KVALVTGASRGIGRAIALRLAAEGAKVAVTDRSEEAA-AETVEEIKALGGNAAALEADVS 59
Query: 70 NTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLLTQEV 104
+ + R L SE WD + +VNL F +TQ V
Sbjct: 60 DREAVEALVEKVEAEFGPVDILVNNAGITRDNLLMRMSEEDWDAVINVNLTGVFNVTQAV 119
Query: 105 LPYMRKKKGGSIVYVSSIGGFK 126
+ M K++ G I+ +SS+ G
Sbjct: 120 IRAMIKRRSGRIINISSVVGLI 141
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 100 bits (251), Expect = 8e-27
Identities = 40/144 (27%), Positives = 61/144 (42%), Gaps = 26/144 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L G+VA++T + GIG AIA RL+A+GA V++ + E ++ G +
Sbjct: 3 DLEGRVALVTGAARGIGRAIAVRLAADGAEVIVVDICGDDAAATAELVEAAGGK-ARARQ 61
Query: 66 CHVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLL 100
V + F + W+++ DVNL +FLL
Sbjct: 62 VDVRDRAALKAAVAAGVEDFGRLDILVANAGIFPLTPFAEMDDEQWERVIDVNLTGTFLL 121
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
TQ LP + + GG IV SS+ G
Sbjct: 122 TQAALPALIRAGGGRIVLTSSVAG 145
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 98.0 bits (245), Expect = 8e-26
Identities = 42/144 (29%), Positives = 64/144 (44%), Gaps = 26/144 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GKVA++T + GIG IA L+ EGA VVI+ + A E LQK G + GV
Sbjct: 1 MLKGKVALVTGAASGIGLEIALALAKEGAKVVIADLNDEAAAAAAEALQKAGGK-AIGVA 59
Query: 66 CHVANTDERQKLFE-------------------HCSEV------VWDKIFDVNLKSSFLL 100
V + + + H + + W K+ + L +FL
Sbjct: 60 MDVTDEEAINAGIDYAVETFGGVDILVNNAGIQHVAPIEDFPTEKWKKMIAIMLDGAFLT 119
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
T+ LP M+ + GG I+ ++S+ G
Sbjct: 120 TKAALPIMKAQGGGRIINMASVHG 143
>gnl|CDD|187602 cd05344, BKR_like_SDR_like, putative beta-ketoacyl acyl carrier
protein [ACP] reductase (BKR)-like, SDR. This subgroup
resembles the SDR family, but does not have a perfect
match to the NAD-binding motif or the catalytic tetrad
characteristic of the SDRs. It includes the SDRs, Q9HYA2
from Pseudomonas aeruginosa PAO1 and APE0912 from
Aeropyrum pernix K1. BKR catalyzes the NADPH-dependent
reduction of ACP in the first reductive step of de novo
fatty acid synthesis (FAS). FAS consists of four
elongation steps, which are repeated to extend the fatty
acid chain through the addition of two-carbo units from
malonyl acyl-carrier protein (ACP): condensation,
reduction, dehydration, and a final reduction. Type II
FAS, typical of plants and many bacteria, maintains
these activities on discrete polypeptides, while type I
FAS utilizes one or two multifunctional polypeptides.
BKR resembles enoyl reductase, which catalyzes the
second reduction step in FAS. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 253
Score = 97.7 bits (244), Expect = 1e-25
Identities = 42/142 (29%), Positives = 68/142 (47%), Gaps = 26/142 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GKVA++TA++ GIG AIA+ L+ EGA V I +R N+ +A L+ G V VV +
Sbjct: 1 GKVALVTAASSGIGLAIARALAREGARVAICARNRENLERAASELRAGGAG-VLAVVADL 59
Query: 69 ANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLLTQE 103
+ ++ +L F ++ W + FD+ L S + +
Sbjct: 60 TDPEDIDRLVEKAGDAFGRVDILVNNAGGPPPGPFAELTDEDWLEAFDLKLLSVIRIVRA 119
Query: 104 VLPYMRKKKGGSIVYVSSIGGF 125
VLP M+++ G IV +SS+
Sbjct: 120 VLPGMKERGWGRIVNISSLTVK 141
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 96.0 bits (240), Expect = 3e-25
Identities = 42/149 (28%), Positives = 64/149 (42%), Gaps = 25/149 (16%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
L GKVA++T ++ GIG AIA+RL+A+GA+VVI+ +A+ V
Sbjct: 1 MSLEGKVALVTGASRGIGRAIAERLAAQGANVVINYASSEAGAEALVAEIGALGGKALAV 60
Query: 65 VCHVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFL 99
V++ + R L E WD++ D NL F
Sbjct: 61 QGDVSDAESVERAVDEAKAEFGGVDILVNNAGITRDNLLMRMKEEDWDRVIDTNLTGVFN 120
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFKQF 128
LT+ V M K++ G I+ +SS+ G
Sbjct: 121 LTKAVARPMMKQRSGRIINISSVVGLMGN 149
>gnl|CDD|187605 cd05347, Ga5DH-like_SDR_c, gluconate 5-dehydrogenase (Ga5DH)-like,
classical (c) SDRs. Ga5DH catalyzes the NADP-dependent
conversion of carbon source D-gluconate and
5-keto-D-gluconate. This SDR subgroup has a classical
Gly-rich NAD(P)-binding motif and a conserved active
site tetrad pattern. However, it has been proposed that
Arg104 (Streptococcus suis Ga5DH numbering), as well as
an active site Ca2+, play a critical role in catalysis.
In addition to Ga5DHs this subgroup contains Erwinia
chrysanthemi KduD which is involved in pectin
degradation, and is a putative
2,5-diketo-3-deoxygluconate dehydrogenase. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107,15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 248
Score = 95.5 bits (238), Expect = 5e-25
Identities = 45/160 (28%), Positives = 71/160 (44%), Gaps = 33/160 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVA++T ++ GIGF IA L+ GA++VI+SR E +A + ++KEG + C
Sbjct: 3 LKGKVALVTGASRGIGFGIASGLAEAGANIVINSRNEEKAEEAQQLIEKEG-VEATAFTC 61
Query: 67 HVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSFLLT 101
V++ + + E E W + DVNL F ++
Sbjct: 62 DVSDEEAIKAAVEAIEEDFGKIDILVNNAGIIRRHPAEEFPEAEWRDVIDVNLNGVFFVS 121
Query: 102 QEVLPYMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
Q V +M K+ G I+ + S+ +S L P Y
Sbjct: 122 QAVARHMIKQGHGKIINICSL-------LSELGGPPVPAY 154
>gnl|CDD|223959 COG1028, FabG, Dehydrogenases with different specificities (related
to short-chain alcohol dehydrogenases) [Secondary
metabolites biosynthesis, transport, and catabolism /
General function prediction only].
Length = 251
Score = 93.0 bits (231), Expect = 6e-24
Identities = 43/148 (29%), Positives = 66/148 (44%), Gaps = 32/148 (21%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVI--SSRKESNVNKAVETLQKEGHQNVSG 63
L GKVA++T ++ GIG AIA+ L+ EGA VV+ +E +++ G +
Sbjct: 2 DLSGKVALVTGASSGIGRAIARALAREGARVVVAARRSEEEAAEALAAAIKEAGGGRAAA 61
Query: 64 VVCHVANT-DERQKLFEHCSEVV--------------------------WDKIFDVNLKS 96
V V++ + + L E WD++ DVNL
Sbjct: 62 VAADVSDDEESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLG 121
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
+FLLT+ LP M+K IV +SS+ G
Sbjct: 122 AFLLTRAALPLMKK---QRIVNISSVAG 146
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 95.7 bits (239), Expect = 8e-24
Identities = 48/147 (32%), Positives = 64/147 (43%), Gaps = 28/147 (19%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN 60
M K L GKVA++T + GIG A AKRL+AEGA VV++ E A L
Sbjct: 414 MPKPKPLAGKVALVTGAAGGIGKATAKRLAAEGACVVLADLDEEAAEAAAAELGGPDR-- 471
Query: 61 VSGVVCHVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLK 95
GV C V + Q FE S+ W + FDVN
Sbjct: 472 ALGVACDVTDEAAVQAAFEEAALAFGGVDIVVSNAGIAISGPIEETSDEDWRRSFDVNAT 531
Query: 96 SSFLLTQEVLPYMRK-KKGGSIVYVSS 121
FL+ +E + M+ GGSIV+++S
Sbjct: 532 GHFLVAREAVRIMKAQGLGGSIVFIAS 558
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 91.5 bits (228), Expect = 2e-23
Identities = 45/148 (30%), Positives = 67/148 (45%), Gaps = 27/148 (18%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVETLQKEGHQNVSG 63
L+G+VA++T + G+G AIA RL+ GA VV+ R E + VE ++ G +
Sbjct: 2 GSLMGRVALVTGAARGLGRAIALRLARAGADVVVHYRSDEEAAEELVEAVEALG-RRAQA 60
Query: 64 VVCHVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSF 98
V V + K S+ WD++ DVNL F
Sbjct: 61 VQADVTDKAALEAAVAAAVERFGRIDILVNNAGIFEDKPLADMSDDEWDEVIDVNLSGVF 120
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
L + V+P MRK++GG IV +SS+ G
Sbjct: 121 HLLRAVVPPMRKQRGGRIVNISSVAGLP 148
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 87.4 bits (217), Expect = 9e-22
Identities = 42/144 (29%), Positives = 68/144 (47%), Gaps = 27/144 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK+A++T ++ GIG AIAK L+ +GA V++SSRK + + G + + C
Sbjct: 6 LTGKIALVTGASRGIGEAIAKLLAQQGAHVIVSSRKLDGCQAVADAIVAAGGK-AEALAC 64
Query: 67 HVANTDERQKLFEHCSEV--------------------------VWDKIFDVNLKSSFLL 100
H+ ++ LF H E + K DVN++ F +
Sbjct: 65 HIGEMEQIDALFAHIRERHGRLDILVNNAAANPYFGHILDTDLGAFQKTVDVNIRGYFFM 124
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
+ E M+++ GGSIV V+S+ G
Sbjct: 125 SVEAGKLMKEQGGGSIVNVASVNG 148
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 86.9 bits (216), Expect = 1e-21
Identities = 31/140 (22%), Positives = 59/140 (42%), Gaps = 26/140 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK A++T + G+G A A+ L+ GA+V + + + L+ G + +
Sbjct: 5 LAGKRALVTGAARGLGAAFAEALAEAGATVAFNDGLAAEARELAAALEAAGGR-AHAIAA 63
Query: 67 HVANTDERQKLFEH-------------------------CSEVVWDKIFDVNLKSSFLLT 101
+A+ Q+ F+ WD + +VN++ +FL+
Sbjct: 64 DLADPASVQRFFDAAAAALGGLDGLVNNAGITNSKSATELDIDTWDAVMNVNVRGTFLML 123
Query: 102 QEVLPYMRKKKGGSIVYVSS 121
+ LP++R G IV ++S
Sbjct: 124 RAALPHLRDSGRGRIVNLAS 143
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 87.0 bits (216), Expect = 1e-21
Identities = 48/148 (32%), Positives = 67/148 (45%), Gaps = 28/148 (18%)
Query: 7 LVGKVAVITAST-EGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGV 64
L GKV ++TA+ GIG A A+R EGA VVIS E + + + L E G V V
Sbjct: 15 LAGKVVLVTAAAGTGIGSATARRALEEGARVVISDIHERRLGETADELAAELGLGRVEAV 74
Query: 65 VCHVANTDERQKLFEHCSE-------------------VV------WDKIFDVNLKSSFL 99
VC V + + L + E VV W ++ DV L +F
Sbjct: 75 VCDVTSEAQVDALIDAAVERLGRLDVLVNNAGLGGQTPVVDMTDDEWSRVLDVTLTGTFR 134
Query: 100 LTQEVLPYMR-KKKGGSIVYVSSIGGFK 126
T+ L YMR + GG IV +S+ G++
Sbjct: 135 ATRAALRYMRARGHGGVIVNNASVLGWR 162
>gnl|CDD|187627 cd05369, TER_DECR_SDR_a, Trans-2-enoyl-CoA reductase (TER) and
2,4-dienoyl-CoA reductase (DECR), atypical (a) SDR.
TTER is a peroxisomal protein with a proposed role in
fatty acid elongation. Fatty acid synthesis is known to
occur in the both endoplasmic reticulum and
mitochondria; peroxisomal TER has been proposed as an
additional fatty acid elongation system, it reduces the
double bond at C-2 as the last step of elongation. This
system resembles the mitochondrial system in that
acetyl-CoA is used as a carbon donor. TER may also
function in phytol metabolism, reducting phytenoyl-CoA
to phytanoyl-CoA in peroxisomes. DECR processes double
bonds in fatty acids to increase their utility in fatty
acid metabolism; it reduces 2,4-dienoyl-CoA to an
enoyl-CoA. DECR is active in mitochondria and
peroxisomes. This subgroup has the Gly-rich NAD-binding
motif of the classical SDR family, but does not display
strong identity to the canonical active site tetrad, and
lacks the characteristic Tyr at the usual position. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 249
Score = 85.3 bits (212), Expect = 4e-21
Identities = 36/141 (25%), Positives = 58/141 (41%), Gaps = 26/141 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVA IT GIG AIAK + GASV I+ RK + A E + + C
Sbjct: 1 LKGKVAFITGGGTGIGKAIAKAFAELGASVAIAGRKPEVLEAAAEEISSATGGRAHPIQC 60
Query: 67 HVANTDERQKLFEHCSE-------VV------------------WDKIFDVNLKSSFLLT 101
V + + + + + ++ + + D++L +F T
Sbjct: 61 DVRDPEAVEAAVDETLKEFGKIDILINNAAGNFLAPAESLSPNGFKTVIDIDLNGTFNTT 120
Query: 102 QEVLPY-MRKKKGGSIVYVSS 121
+ V + K GGSI+ +S+
Sbjct: 121 KAVGKRLIEAKHGGSILNISA 141
>gnl|CDD|187643 cd08939, KDSR-like_SDR_c, 3-ketodihydrosphingosine reductase (KDSR)
and related proteins, classical (c) SDR. These proteins
include members identified as KDSR, ribitol type
dehydrogenase, and others. The group shows strong
conservation of the active site tetrad and glycine rich
NAD-binding motif of the classical SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 239
Score = 83.8 bits (208), Expect = 1e-20
Identities = 44/145 (30%), Positives = 71/145 (48%), Gaps = 28/145 (19%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH---QNVSGVV 65
GK +IT + GIG A+AK L EGA+V+I +R ES + +AVE ++ E + Q VS +
Sbjct: 1 GKHVLITGGSSGIGKALAKELVKEGANVIIVARSESKLEEAVEEIEAEANASGQKVSYIS 60
Query: 66 CHVANTDERQKLFEHCSE------VVW-------------------DKIFDVNLKSSFLL 100
+++ +E ++ F E +V ++ DVN S +
Sbjct: 61 ADLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPGLFEDLTAEEFERGMDVNYFGSLNV 120
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGGF 125
VLP M++++ G IV+VSS
Sbjct: 121 AHAVLPLMKEQRPGHIVFVSSQAAL 145
>gnl|CDD|211705 TIGR01963, PHB_DH, 3-hydroxybutyrate dehydrogenase. This model
represents a subfamily of the short chain
dehydrogenases. Characterized members so far as
3-hydroxybutyrate dehydrogenases and are found in
species that accumulate ester polmers called
polyhydroxyalkanoic acids (PHAs) under certain
conditions. Several members of the family are from
species not known to accumulate PHAs, including
Oceanobacillus iheyensis and Bacillus subtilis. However,
polymer formation is not required for there be a role
for 3-hydroxybutyrate dehydrogenase; it may be members
of this family have the same function in those species.
Length = 255
Score = 83.6 bits (207), Expect = 2e-20
Identities = 39/141 (27%), Positives = 62/141 (43%), Gaps = 26/141 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GK A++T + GIG AIA+ L+A GA+VV++ E A + G +V + V
Sbjct: 1 GKTALVTGAASGIGLAIARALAAAGANVVVNDFGEEGAEAAAKVAGDAGG-SVIYLPADV 59
Query: 69 ANTDERQKLFE-------------------HCSEV------VWDKIFDVNLKSSFLLTQE 103
DE + H + + WD+I V L S+F +
Sbjct: 60 TKEDEIADMIAAAAAEFGGLDILVNNAGIQHVAPIEEFPPEDWDRIIAVMLTSAFHTIRA 119
Query: 104 VLPYMRKKKGGSIVYVSSIGG 124
LP+M+K+ G I+ ++S G
Sbjct: 120 ALPHMKKQGWGRIINIASAHG 140
>gnl|CDD|187590 cd05329, TR_SDR_c, tropinone reductase-I and II (TR-1, and
TR-II)-like, classical (c) SDRs. This subgroup includes
TR-I and TR-II; these proteins are members of the SDR
family. TRs catalyze the NADPH-dependent reductions of
the 3-carbonyl group of tropinone, to a beta-hydroxyl
group. TR-I and TR-II produce different stereoisomers
from tropinone, TR-I produces tropine
(3alpha-hydroxytropane), and TR-II, produces
pseudotropine (sigma-tropine, 3beta-hydroxytropane).
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 251
Score = 83.3 bits (206), Expect = 3e-20
Identities = 36/146 (24%), Positives = 70/146 (47%), Gaps = 27/146 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GK A++T T+GIG+AI + L+ GA V +R + +++ + +++G + V G V
Sbjct: 3 NLEGKTALVTGGTKGIGYAIVEELAGLGAEVYTCARNQKELDECLTEWREKGFK-VEGSV 61
Query: 66 CHVANTDERQKLFEHCSEVV--------------------------WDKIFDVNLKSSFL 99
C V++ ERQ+L + + + I N ++++
Sbjct: 62 CDVSSRSERQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEAAYH 121
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGF 125
L++ P ++ G+IV++SS+ G
Sbjct: 122 LSRLAHPLLKASGNGNIVFISSVAGV 147
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 83.1 bits (206), Expect = 4e-20
Identities = 40/147 (27%), Positives = 66/147 (44%), Gaps = 27/147 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GK A++T + G+G IA+ L GA VV+S+RK + +A L+ G + +
Sbjct: 9 DLSGKTALVTGGSRGLGLQIAEALGEAGARVVLSARKAEELEEAAAHLEALGIDAL-WIA 67
Query: 66 CHVANTDERQKL----FEHCSEV---------------------VWDKIFDVNLKSSFLL 100
VA+ + ++L E V WDK+ ++N++ FLL
Sbjct: 68 ADVADEADIERLAEETLERFGHVDILVNNAGATWGAPAEDHPVEAWDKVMNLNVRGLFLL 127
Query: 101 TQEVLP-YMRKKKGGSIVYVSSIGGFK 126
+Q V M + G I+ V+S+ G
Sbjct: 128 SQAVAKRSMIPRGYGRIINVASVAGLG 154
>gnl|CDD|187600 cd05341, 3beta-17beta-HSD_like_SDR_c, 3beta17beta hydroxysteroid
dehydrogenase-like, classical (c) SDRs. This subgroup
includes members identified as 3beta17beta
hydroxysteroid dehydrogenase, 20beta hydroxysteroid
dehydrogenase, and R-alcohol dehydrogenase. These
proteins exhibit the canonical active site tetrad and
glycine rich NAD(P)-binding motif of the classical SDRs.
17beta-dehydrogenases are a group of isozymes that
catalyze activation and inactivation of estrogen and
androgens, and include members of the SDR family. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 247
Score = 82.0 bits (203), Expect = 9e-20
Identities = 43/147 (29%), Positives = 61/147 (41%), Gaps = 33/147 (22%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GKVA++T G+G A A+ L AEGA VV+S + A L
Sbjct: 2 RLKGKVAIVTGGARGLGLAHARLLVAEGAKVVLSDILDEEGQAAAAELGDAAR------F 55
Query: 66 CH--VANTDERQKLF-------------------------EHCSEVVWDKIFDVNLKSSF 98
H V + D + E + W ++ D+NL F
Sbjct: 56 FHLDVTDEDGWTAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDINLTGVF 115
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L T+ V+P M++ GGSI+ +SSI G
Sbjct: 116 LGTRAVIPPMKEAGGGSIINMSSIEGL 142
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 80.5 bits (199), Expect = 4e-19
Identities = 38/141 (26%), Positives = 68/141 (48%), Gaps = 26/141 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK+A+IT ++ GIGFAIAK + GA++V + + V+K + ++ G G VC
Sbjct: 8 LKGKIALITGASYGIGFAIAKAYAKAGATIVFNDINQELVDKGLAAYRELGI-EAHGYVC 66
Query: 67 HVANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFLLT 101
V + D Q + + V + ++ D++L + F+++
Sbjct: 67 DVTDEDGVQAMVSQIEKEVGVIDILVNNAGIIKRIPMLEMSAEDFRQVIDIDLNAPFIVS 126
Query: 102 QEVLPYMRKKKGGSIVYVSSI 122
+ V+P M KK G I+ + S+
Sbjct: 127 KAVIPSMIKKGHGKIINICSM 147
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 79.3 bits (196), Expect = 7e-19
Identities = 43/148 (29%), Positives = 68/148 (45%), Gaps = 28/148 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVA+IT ++GIGFAIA+ L AEG V I++R + + +A L +G NV G+
Sbjct: 4 LKGKVALITGGSKGIGFAIAEALLAEGYKVAITARDQKELEEAAAELNNKG--NVLGLAA 61
Query: 67 HVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSFLLT 101
V + + Q+ + + W + D NL +F
Sbjct: 62 DVRDEADVQRAVDAIVAAFGGLDVLIANAGVGHFAPVEELTPEEWRLVIDTNLTGAFYTI 121
Query: 102 QEVLPYMRKKKGGSIVYVSSIGGFKQFK 129
+ +P + K+ GG I+ +SS+ G F
Sbjct: 122 KAAVPAL-KRGGGYIINISSLAGTNFFA 148
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 79.4 bits (196), Expect = 8e-19
Identities = 42/143 (29%), Positives = 61/143 (42%), Gaps = 33/143 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL G+VAVIT GIG A A+RL+AEGA+VV+ A + + V
Sbjct: 4 RLAGRVAVITGGGSGIGLATARRLAAEGATVVVGDIDPEAGKAAADEV------GGLFVP 57
Query: 66 CHVANTDERQKLFEHCSEV---------------------------VWDKIFDVNLKSSF 98
V + D LF+ +E W ++ DVNL S +
Sbjct: 58 TDVTDEDAVNALFDTAAETYGSVDIAFNNAGISPPEDDSILNTGLDAWQRVQDVNLTSVY 117
Query: 99 LLTQEVLPYMRKKKGGSIVYVSS 121
L + LP+M ++ GSI+ +S
Sbjct: 118 LCCKAALPHMVRQGKGSIINTAS 140
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 79.3 bits (196), Expect = 8e-19
Identities = 47/145 (32%), Positives = 64/145 (44%), Gaps = 31/145 (21%)
Query: 3 KATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETL-QKEGHQNV 61
A L GKVAV+T GIG AIA+ +A+GA V + R E V + + N
Sbjct: 9 LAFDLSGKVAVVTGGASGIGHAIAELFAAKGARVALLDRSE-----DVAEVAAQLLGGNA 63
Query: 62 SGVVCHVANTDERQKLF-------------------------EHCSEVVWDKIFDVNLKS 96
G+VC V+++ + E SE WDK D+NLK
Sbjct: 64 KGLVCDVSDSQSVEAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWDKTIDINLKG 123
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSS 121
SFL+ Q V +M GG IV ++S
Sbjct: 124 SFLMAQAVGRHMIAAGGGKIVNLAS 148
>gnl|CDD|187603 cd05345, BKR_3_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP] reductase (BKR), subgroup 3, classical (c) SDR.
This subgroup includes the putative Brucella melitensis
biovar Abortus 2308 BKR, FabG, Mesorhizobium loti
MAFF303099 FabG, and other classical SDRs. BKR, a member
of the SDR family, catalyzes the NADPH-dependent
reduction of acyl carrier protein in the first reductive
step of de novo fatty acid synthesis (FAS). FAS
consists of 4 elongation steps, which are repeated to
extend the fatty acid chain thru the addition of
two-carbo units from malonyl acyl-carrier protein (ACP):
condensation, reduction, dehydration, and final
reduction. Type II FAS, typical of plants and many
bacteria, maintains these activities on discrete
polypeptides, while type I Fas utilizes one or 2
multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 248
Score = 78.2 bits (193), Expect = 2e-18
Identities = 44/144 (30%), Positives = 69/144 (47%), Gaps = 28/144 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSR------------------------ 41
RL GKVA++T + G G IA+R + EGA VVI+
Sbjct: 2 RLEGKVAIVTGAGSGFGEGIARRFAQEGARVVIADINADGAERVAADIGEAAIAIQADVT 61
Query: 42 KESNVNKAVET-LQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLL 100
K ++V VE L K G ++ + + A R K E +D++F VN+KS +L
Sbjct: 62 KRADVEAMVEAALSKFGRLDI---LVNNAGITHRNKPMLEVDEEEFDRVFAVNVKSIYLS 118
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
Q ++P+M ++ GG I+ ++S G
Sbjct: 119 AQALVPHMEEQGGGVIINIASTAG 142
>gnl|CDD|187620 cd05362, THN_reductase-like_SDR_c,
tetrahydroxynaphthalene/trihydroxynaphthalene
reductase-like, classical (c) SDRs.
1,3,6,8-tetrahydroxynaphthalene reductase (4HNR) of
Magnaporthe grisea and the related
1,3,8-trihydroxynaphthalene reductase (3HNR) are typical
members of the SDR family containing the canonical
glycine rich NAD(P)-binding site and active site tetrad,
and function in fungal melanin biosynthesis. This
subgroup also includes an SDR from Norway spruce that
may function to protect against both biotic and abitoic
stress. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 243
Score = 76.9 bits (190), Expect = 5e-18
Identities = 44/143 (30%), Positives = 72/143 (50%), Gaps = 31/143 (21%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVI--SSRKESNVNKAVETLQKEGHQNVSGV 64
L GKVA++T ++ GIG AIAKRL+ +GASVV+ +S K + + V ++ G + ++ V
Sbjct: 1 LAGKVALVTGASRGIGRAIAKRLARDGASVVVNYASSKAA-AEEVVAEIEAAGGKAIA-V 58
Query: 65 VCHVANTDERQKLFE-------------------------HCSEVVWDKIFDVNLKSSFL 99
V++ + +LF+ SE +D++F VN K +F
Sbjct: 59 QADVSDPSQVARLFDAAEKAFGGVDILVNNAGVMLKKPIAETSEEEFDRMFTVNTKGAFF 118
Query: 100 LTQEVLPYMRKKKGGSIVYVSSI 122
+ QE +R GG I+ +SS
Sbjct: 119 VLQEAAKRLR--DGGRIINISSS 139
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 76.9 bits (190), Expect = 6e-18
Identities = 41/128 (32%), Positives = 63/128 (49%), Gaps = 12/128 (9%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVV-ISSRKESNVNKAVETLQ-------KEGHQN 60
K +IT + GIG A A+ A+GA V + + + +++ LQ +
Sbjct: 5 TKTVLITGAASGIGLAQARAFLAQGAQVYGVDKQDKPDLSGNFHFLQLDLSDDLEPLFDW 64
Query: 61 VSGV--VCHVANT-DERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIV 117
V V +C+ A D+ + L + S W IFD NL S+FLLT+ LP M ++K G I+
Sbjct: 65 VPSVDILCNTAGILDDYKPLLD-TSLEEWQHIFDTNLTSTFLLTRAYLPQMLERKSGIII 123
Query: 118 YVSSIGGF 125
+ SI F
Sbjct: 124 NMCSIASF 131
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 76.5 bits (189), Expect = 9e-18
Identities = 40/147 (27%), Positives = 68/147 (46%), Gaps = 27/147 (18%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
RL GKVA+IT ++ GIG A AK + EGA VV+ +R+++ +++ V ++ EG + V+ +
Sbjct: 2 MRLNGKVAIITGASSGIGRAAAKLFAREGAKVVVGARRQAELDQLVAEIRAEGGEAVA-L 60
Query: 65 VCHVANTDERQKLFEHC--------------------------SEVVWDKIFDVNLKSSF 98
V + + L S W + NL S+F
Sbjct: 61 AGDVRDEAYAKALVALAVERFGGLDIAFNNAGTLGEMGPVAEMSLEGWRETLATNLTSAF 120
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L + +P M + GGS+++ S+ G
Sbjct: 121 LGAKHQIPAMLARGGGSLIFTSTFVGH 147
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 76.5 bits (189), Expect = 1e-17
Identities = 44/158 (27%), Positives = 67/158 (42%), Gaps = 48/158 (30%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESN------------------ 45
T L GKVA+IT ++ GIG A A+ L+ GA VV+++R+E
Sbjct: 1 MTTLKGKVALITGASSGIGEATARALAEAGAKVVLAARREERLEALADEIGAGAALALAL 60
Query: 46 -------VNKAVETLQKEGHQNVSGVVC----------HVANTDERQKLFEHCSEVVWDK 88
V A+E L +E + +V A+ D+ WD+
Sbjct: 61 DVTDRAAVEAAIEALPEE-FGRIDILVNNAGLALGDPLDEADLDD------------WDR 107
Query: 89 IFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+ D N+K T+ VLP M ++K G I+ + SI G
Sbjct: 108 MIDTNVKGLLNGTRAVLPGMVERKSGHIINLGSIAGRY 145
>gnl|CDD|187647 cd08943, R1PA_ADH_SDR_c, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase, classical (c) SDRs. This family has
bifunctional proteins with an N-terminal aldolase and a
C-terminal classical SDR domain. One member is
identified as a rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase. The SDR domain has a canonical SDR
glycine-rich NAD(P) binding motif and a match to the
characteristic active site triad. However, it lacks an
upstream active site Asn typical of SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 76.3 bits (188), Expect = 1e-17
Identities = 44/139 (31%), Positives = 62/139 (44%), Gaps = 28/139 (20%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GKVA++T GIG AIAKRL+AEGA+VV++ K E Q GV C V
Sbjct: 1 GKVALVTGGASGIGLAIAKRLAAEGAAVVVADIDPEIAEKVAEAAQGGPR--ALGVQCDV 58
Query: 69 ANTDERQKLFE-------------------------HCSEVVWDKIFDVNLKSSFLLTQE 103
+ + Q FE S W++ D+NL FL+++E
Sbjct: 59 TSEAQVQSAFEQAVLEFGGLDIVVSNAGIATSSPIAETSLEDWNRSMDINLTGHFLVSRE 118
Query: 104 VLPYMRK-KKGGSIVYVSS 121
M+ GG+IV+ +S
Sbjct: 119 AFRIMKSQGIGGNIVFNAS 137
>gnl|CDD|187648 cd08944, SDR_c12, classical (c) SDR, subgroup 12. These are
classical SDRs, with the canonical active site tetrad
and glycine-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 246
Score = 75.6 bits (186), Expect = 2e-17
Identities = 47/146 (32%), Positives = 63/146 (43%), Gaps = 34/146 (23%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVA++T + GIG A A RL+ EGA VV++ V + G +
Sbjct: 1 LEGKVAIVTGAGAGIGAACAARLAREGARVVVADIDGGAAQAVVAQI--AGG----ALAL 54
Query: 67 HVANTDERQ--KLFEHCSEV--------------------------VWDKIFDVNLKSSF 98
V TDE+Q LFE E VWD+ +NL+ +F
Sbjct: 55 RVDVTDEQQVAALFERAVEEFGGLDLLVNNAGAMHLTPAIIDTDLAVWDQTMAINLRGTF 114
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGG 124
L + P M + GGSIV +SSI G
Sbjct: 115 LCCRHAAPRMIARGGGSIVNLSSIAG 140
>gnl|CDD|187634 cd08929, SDR_c4, classical (c) SDR, subgroup 4. This subgroup has
a canonical active site tetrad and a typical Gly-rich
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 226
Score = 74.9 bits (184), Expect = 3e-17
Identities = 36/145 (24%), Positives = 59/145 (40%), Gaps = 29/145 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
K A++T ++ GIG A A+ L AEG V I +R E+ + A + V G+ V
Sbjct: 1 KAALVTGASRGIGEATARLLHAEGYRVGICARDEARLAAAAAQE----LEGVLGLAGDVR 56
Query: 70 NTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFLLTQEV 104
+ + ++ + E W + D NL +F +
Sbjct: 57 DEADVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEELTPEEWRLVLDTNLTGAFYCIHKA 116
Query: 105 LPYMRKKKGGSIVYVSSIGGFKQFK 129
P + ++ GG+IV V S+ G FK
Sbjct: 117 APALLRRGGGTIVNVGSLAGKNAFK 141
>gnl|CDD|187616 cd05358, GlcDH_SDR_c, glucose 1 dehydrogenase (GlcDH), classical
(c) SDRs. GlcDH, is a tetrameric member of the SDR
family, it catalyzes the NAD(P)-dependent oxidation of
beta-D-glucose to D-glucono-delta-lactone. GlcDH has a
typical NAD-binding site glycine-rich pattern as well as
the canonical active site tetrad (YXXXK motif plus
upstream Ser and Asn). SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 253
Score = 75.1 bits (185), Expect = 3e-17
Identities = 44/143 (30%), Positives = 70/143 (48%), Gaps = 28/143 (19%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSR-KESNVNKAVETLQKEGHQNVSGVV 65
L GKVA++T ++ GIG AIA RL+ GA+VV++ R KE + VE ++ G + ++ V
Sbjct: 1 LKGKVALVTGASSGIGKAIAIRLATAGANVVVNYRSKEDAAEEVVEEIKAVGGKAIA-VQ 59
Query: 66 CHVANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFLL 100
V+ ++ LF+ + W+K+ DVNL FL
Sbjct: 60 ADVSKEEDVVALFQSAIKEFGTLDILVNNAGLQGDASSHEMTLEDWNKVIDVNLTGQFLC 119
Query: 101 TQEVLPYMRK-KKGGSIVYVSSI 122
+E + RK K G I+ +SS+
Sbjct: 120 AREAIKRFRKSKIKGKIINMSSV 142
>gnl|CDD|187597 cd05338, DHRS1_HSDL2-like_SDR_c, human dehydrogenase/reductase (SDR
family) member 1 (DHRS1) and human hydroxysteroid
dehydrogenase-like protein 2 (HSDL2), classical (c)
SDRs. This subgroup includes human DHRS1 and human
HSDL2 and related proteins. These are members of the
classical SDR family, with a canonical Gly-rich
NAD-binding motif and the typical YXXXK active site
motif. However, the rest of the catalytic tetrad is not
strongly conserved. DHRS1 mRNA has been detected in many
tissues, liver, heart, skeletal muscle, kidney and
pancreas; a longer transcript is predominantly expressed
in the liver , a shorter one in the heart. HSDL2 may
play a part in fatty acid metabolism, as it is found in
peroxisomes. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 246
Score = 74.4 bits (183), Expect = 5e-17
Identities = 43/172 (25%), Positives = 72/172 (41%), Gaps = 45/172 (26%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESN------------VNKAVETLQ 54
L GKVA +T ++ GIG AIA RL+ GA+VV++++ S + + E ++
Sbjct: 1 LSGKVAFVTGASRGIGRAIALRLAKAGATVVVAAKTASEGDNGSAKSLPGTIEETAEEIE 60
Query: 55 KEGHQNVSGVVCHVANTDERQKLFEHCSEVV-------------------------WDKI 89
G Q + +V V + D+ + L E + +D +
Sbjct: 61 AAGGQAL-PIVVDVRDEDQVRALVEATVDQFGRLDILVNNAGAIWLSLVEDTPAKRFDLM 119
Query: 90 FDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
VNL+ ++LL+Q LP+M K G I+ +S + R Y
Sbjct: 120 QRVNLRGTYLLSQAALPHMVKAGQGHILNISPPLSLRPA-------RGDVAY 164
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 74.2 bits (183), Expect = 6e-17
Identities = 41/147 (27%), Positives = 59/147 (40%), Gaps = 39/147 (26%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETL----------- 53
+RL GK A+IT T GIG A++ AEGA V I+ R +++ A L
Sbjct: 2 SRLQGKTALITGGTSGIGLETARQFLAEGARVAITGRDPASLEAARAELGESALVIRADA 61
Query: 54 -----QKEGHQNVS-------------GVVCHVANTDERQKLFEHCSEVVWDKIFDVNLK 95
QK Q ++ GV E E ++D+ F+ N+K
Sbjct: 62 GDVAAQKALAQALAEAFGRLDAVFINAGVAKF--------APLEDWDEAMFDRSFNTNVK 113
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSI 122
+ L Q +LP + SIV SI
Sbjct: 114 GPYFLIQALLPLL--ANPASIVLNGSI 138
>gnl|CDD|187585 cd05324, carb_red_PTCR-like_SDR_c, Porcine testicular carbonyl
reductase (PTCR)-like, classical (c) SDRs. PTCR is a
classical SDR which catalyzes the NADPH-dependent
reduction of ketones on steroids and prostaglandins.
Unlike most SDRs, PTCR functions as a monomer. This
subgroup also includes human carbonyl reductase 1 (CBR1)
and CBR3. CBR1 is an NADPH-dependent SDR with broad
substrate specificity and may be responsible for the in
vivo reduction of quinones, prostaglandins, and other
carbonyl-containing compounds. In addition it includes
poppy NADPH-dependent salutaridine reductase which
catalyzes the stereospecific reduction of salutaridine
to 7(S)-salutaridinol in the biosynthesis of morphine,
and Arabidopsis SDR1,a menthone reductase, which
catalyzes the reduction of menthone to neomenthol, a
compound with antimicrobial activity; SDR1 can also
carry out neomenthol oxidation. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering). In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 225
Score = 73.4 bits (181), Expect = 1e-16
Identities = 35/142 (24%), Positives = 57/142 (40%), Gaps = 28/142 (19%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
KVA++T + GIGF I ++L+ G +V++++R AVE L+ EG +V V
Sbjct: 1 KVALVTGANRGIGFEIVRQLAKSGPGTVILTARDVERGQAAVEKLRAEGL-SVRFHQLDV 59
Query: 69 ANTDERQKLFEHCSEV--------------------------VWDKIFDVNLKSSFLLTQ 102
+ + + E + N + +TQ
Sbjct: 60 TDDASIEAAADFVEEKYGGLDILVNNAGIAFKGFDDSTPTREQARETMKTNFFGTVDVTQ 119
Query: 103 EVLPYMRKKKGGSIVYVSSIGG 124
+LP ++K G IV VSS G
Sbjct: 120 ALLPLLKKSPAGRIVNVSSGLG 141
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 73.4 bits (181), Expect = 1e-16
Identities = 29/142 (20%), Positives = 63/142 (44%), Gaps = 25/142 (17%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GK A+IT ++ GIG +AK+L+ G ++++ +R+E + + L+ + V + +
Sbjct: 6 GKTALITGASSGIGAELAKQLARRGYNLILVARREDKLEALAKELEDKTGVEVEVIPADL 65
Query: 69 ANTDERQKLFEHCSEVVWD-------------------------KIFDVNLKSSFLLTQE 103
++ + ++L + E ++ +N+ + LT+
Sbjct: 66 SDPEALERLEDELKERGGPIDVLVNNAGFGTFGPFLELSLDEEEEMIQLNILALTRLTKA 125
Query: 104 VLPYMRKKKGGSIVYVSSIGGF 125
VLP M ++ G I+ + S G
Sbjct: 126 VLPGMVERGAGHIINIGSAAGL 147
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 73.3 bits (180), Expect = 2e-16
Identities = 36/146 (24%), Positives = 56/146 (38%), Gaps = 29/146 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQK-EGHQNVSGV 64
RL G+VA++T + GIG A AK + EGA VV++ R + A
Sbjct: 2 RLAGRVAIVTGAGSGIGRATAKLFAREGARVVVADR---DAEAAERVAAAIAAGGRAFAR 58
Query: 65 VCHVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSFL 99
V + + + L + E WD + VN+ FL
Sbjct: 59 QGDVGSAEAVEALVDFVAARWGRLDVLVNNAGFGCGGTVVTTDEADWDAVMRVNVGGVFL 118
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGF 125
+ +P M+++ GGSIV +S
Sbjct: 119 WAKYAIPIMQRQGGGSIVNTASQLAL 144
>gnl|CDD|187649 cd08945, PKR_SDR_c, Polyketide ketoreductase, classical (c) SDR.
Polyketide ketoreductase (KR) is a classical SDR with a
characteristic NAD-binding pattern and active site
tetrad. Aromatic polyketides include various aromatic
compounds of pharmaceutical interest. Polyketide KR,
part of the type II polyketide synthase (PKS) complex,
is comprised of stand-alone domains that resemble the
domains found in fatty acid synthase and multidomain
type I PKS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 258
Score = 73.3 bits (180), Expect = 2e-16
Identities = 45/159 (28%), Positives = 70/159 (44%), Gaps = 35/159 (22%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+VA++T +T GIG AIA+RL EG V + +R E + V+ L++ G G C V
Sbjct: 4 EVALVTGATSGIGLAIARRLGKEGLRVFVCARGEEGLATTVKELREAG-VEADGRTCDVR 62
Query: 70 NTDERQKLFE-------------------------HCSEVVWDKIFDVNLKSSFLLTQEV 104
+ E + L ++ +W + + NL F +T+EV
Sbjct: 63 SVPEIEALVAAAVARYGPIDVLVNNAGRSGGGATAELADELWLDVVETNLTGVFRVTKEV 122
Query: 105 LPY--MRKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
L M ++ G I+ ++S GG KQ V A PY
Sbjct: 123 LKAGGMLERGTGRIINIASTGG-KQGVVH------AAPY 154
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 72.8 bits (179), Expect = 2e-16
Identities = 42/148 (28%), Positives = 65/148 (43%), Gaps = 26/148 (17%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
A L GK A+IT + GIG A+A L+ EG +V + +R E N+ E ++ G + V
Sbjct: 2 AQSLQGKNALITGAGRGIGRAVAIALAKEGVNVGLLARTEENLKAVAEEVEAYGVK-VVI 60
Query: 64 VVCHVANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSF 98
V++ +E E + W+KI VNL +
Sbjct: 61 ATADVSDYEEVTAAIEQLKNELGSIDILINNAGISKFGKFLELDPAEWEKIIQVNLMGVY 120
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
T+ VLP M +++ G I+ +SS G K
Sbjct: 121 YATRAVLPSMIERQSGDIINISSTAGQK 148
>gnl|CDD|187626 cd05368, DHRS6_like_SDR_c, human DHRS6-like, classical (c) SDRs.
Human DHRS6, and similar proteins. These proteins are
classical SDRs, with a canonical active site tetrad and
a close match to the typical Gly-rich NAD-binding motif.
Human DHRS6 is a cytosolic type 2 (R)-hydroxybutyrate
dehydrogenase, which catalyses the conversion of
(R)-hydroxybutyrate to acetoacetate. Also included in
this subgroup is Escherichia coli UcpA (upstream cys P).
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction. Note: removed :
needed to make this chiodl smaller when drew final
trees: rmeoved text form description: Other proteins in
this subgroup include Thermoplasma acidophilum
aldohexose dehydrogenase, which has high dehydrogenase
activity against D-mannose, Bacillus subtilis BacC
involved in the biosynthesis of the dipeptide bacilysin
and its antibiotic moiety anticapsin, Sphingomonas
paucimobilis strain B90 LinC, involved in the
degradation of hexachlorocyclohexane isomers...... P).
Length = 241
Score = 72.5 bits (178), Expect = 2e-16
Identities = 42/139 (30%), Positives = 66/139 (47%), Gaps = 31/139 (22%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVV---ISSRKESNVNK---------------AV 50
GKVA+ITA+ +GIG AIA + EGA+V+ I+ K + + V
Sbjct: 2 GKVALITAAAQGIGRAIALAFAREGANVIATDINEEKLKELERGPGITTRVLDVTDKEQV 61
Query: 51 ETLQKEGHQ-----NVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVL 105
L KE + N +G H + C + WD ++N++S +L+ + VL
Sbjct: 62 AALAKEEGRIDVLFNCAGF-VHHGS-------ILDCEDDDWDFAMNLNVRSMYLMIKAVL 113
Query: 106 PYMRKKKGGSIVYVSSIGG 124
P M +K GSI+ +SS+
Sbjct: 114 PKMLARKDGSIINMSSVAS 132
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 72.8 bits (179), Expect = 3e-16
Identities = 33/145 (22%), Positives = 57/145 (39%), Gaps = 30/145 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L G ++T GIG AIA+ + GA V + E+ + L V+ V
Sbjct: 9 LDGLRVLVTGGASGIGRAIAEAFAEAGARVHVCDVSEAALAATAARL---PGAKVTATVA 65
Query: 67 HVANTDERQKLFEHCSE------VV--------------------WDKIFDVNLKSSFLL 100
VA+ + +++F+ E V+ W++ VNL F
Sbjct: 66 DVADPAQVERVFDTAVERFGGLDVLVNNAGIAGPTGGIDEITPEQWEQTLAVNLNGQFYF 125
Query: 101 TQEVLPYMRK-KKGGSIVYVSSIGG 124
+ +P ++ GG I+ +SS+ G
Sbjct: 126 ARAAVPLLKASGHGGVIIALSSVAG 150
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 72.3 bits (177), Expect = 3e-16
Identities = 57/153 (37%), Positives = 76/153 (49%), Gaps = 31/153 (20%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVIS--SRKESNVNKAVETLQKEGHQ--- 59
+L GKVA++T +GIG AI L+ EGA VVI+ S KE+ N V L KEGH
Sbjct: 2 VQLNGKVAIVTGGAKGIGKAITVALAQEGAKVVINYNSSKEAAEN-LVNELGKEGHDVYA 60
Query: 60 ---NVSGV----------VCHVANTD--------ERQKLFEHCSEVVWDKIFDVNLKSSF 98
+VS V V H D R + F+ + W+++ DVNL S F
Sbjct: 61 VQADVSKVEDANRLVEEAVNHFGKVDILVNNAGITRDRTFKKLNREDWERVIDVNLSSVF 120
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSI----GGFKQ 127
T VLPY+ + + G I+ +SSI GGF Q
Sbjct: 121 NTTSAVLPYITEAEEGRIISISSIIGQAGGFGQ 153
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 72.5 bits (178), Expect = 3e-16
Identities = 38/146 (26%), Positives = 70/146 (47%), Gaps = 28/146 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE--GHQNVSG 63
RL G+ A+IT +++GIG AIA+ GA V+I +R + +A + L +E + V G
Sbjct: 6 RLDGQTALITGASKGIGLAIAREFLGLGADVLIVARDADALAQARDELAEEFPERE-VHG 64
Query: 64 VVCHVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSF 98
+ V++ ++R+ + + +E W IF+ NL S+F
Sbjct: 65 LAADVSDDEDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAF 124
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGG 124
L++ P +++ +IV + S+ G
Sbjct: 125 ELSRYAHPLLKQHASSAIVNIGSVSG 150
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 72.6 bits (178), Expect = 4e-16
Identities = 38/147 (25%), Positives = 64/147 (43%), Gaps = 27/147 (18%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
+ L GK AV+T + GIG IA L+ GA+V I+ + N + + K G + + G
Sbjct: 2 MSNLNGKTAVVTGAASGIGKEIALELARAGAAVAIADLNQDGANAVADEINKAGGKAI-G 60
Query: 64 VVCHVANTDE--------RQKL-----------------FEHCSEVVWDKIFDVNLKSSF 98
V V N D ++ E+ S W K+ +++ +F
Sbjct: 61 VAMDVTNEDAVNAGIDKVAERFGSVDILVSNAGIQIVNPIENYSFADWKKMQAIHVDGAF 120
Query: 99 LLTQEVLPYMRK-KKGGSIVYVSSIGG 124
L T+ L +M K +GG ++Y+ S+
Sbjct: 121 LTTKAALKHMYKDDRGGVVIYMGSVHS 147
>gnl|CDD|187632 cd05374, 17beta-HSD-like_SDR_c, 17beta hydroxysteroid
dehydrogenase-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 248
Score = 71.9 bits (177), Expect = 4e-16
Identities = 35/141 (24%), Positives = 63/141 (44%), Gaps = 29/141 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KV +IT + GIG A+A L+A+G V+ ++R +E+L + + N+ + V
Sbjct: 1 KVVLITGCSSGIGLALALALAAQGYRVIATARNPD----KLESLGELLNDNLEVLELDVT 56
Query: 70 NTDERQKLFEHCSEV------------------VWD-------KIFDVNLKSSFLLTQEV 104
+ + + + E + + ++F+VN+ +T+
Sbjct: 57 DEESIKAAVKEVIERFGRIDVLVNNAGYGLFGPLEETSIEEVRELFEVNVFGPLRVTRAF 116
Query: 105 LPYMRKKKGGSIVYVSSIGGF 125
LP MRK+ G IV VSS+ G
Sbjct: 117 LPLMRKQGSGRIVNVSSVAGL 137
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 71.7 bits (176), Expect = 6e-16
Identities = 37/147 (25%), Positives = 63/147 (42%), Gaps = 30/147 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG--HQNVSGVVCH 67
K+A++T + GIG AIA+ L +G V+ + S + A + ++ G V
Sbjct: 3 KIALVTGAKRGIGSAIARELLNDGYRVIATYF--SGNDCAKDWFEEYGFTEDQVRLKELD 60
Query: 68 VANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLLTQ 102
V +T+E + F+ S W+ + + NL S F +TQ
Sbjct: 61 VTDTEECAEALAEIEEEEGPVDILVNNAGITRDSVFKRMSHQEWNDVINTNLNSVFNVTQ 120
Query: 103 EVLPYMRKKKGGSIVYVSSIGGFK-QF 128
+ M ++ G I+ +SS+ G K QF
Sbjct: 121 PLFAAMCEQGYGRIINISSVNGLKGQF 147
>gnl|CDD|212492 cd05327, retinol-DH_like_SDR_c_like, retinol dehydrogenase
(retinol-DH), Light dependent Protochlorophyllide
(Pchlide) OxidoReductase (LPOR) and related proteins,
classical (c) SDRs. Classical SDR subgroup containing
retinol-DHs, LPORs, and related proteins. Retinol is
processed by a medium chain alcohol dehydrogenase
followed by retinol-DHs. Pchlide reductases act in
chlorophyll biosynthesis. There are distinct enzymes
that catalyze Pchlide reduction in light or dark
conditions. Light-dependent reduction is via an
NADP-dependent SDR, LPOR. Proteins in this subfamily
share the glycine-rich NAD-binding motif of the
classical SDRs, have a partial match to the canonical
active site tetrad, but lack the typical active site
Ser. This subgroup includes the human proteins: retinol
dehydrogenase -12, -13 ,and -14, dehydrogenase/reductase
SDR family member (DHRS)-12 , -13 and -X (a DHRS on
chromosome X), and WWOX (WW domain-containing
oxidoreductase), as well as a Neurospora crassa SDR
encoded by the blue light inducible bli-4 gene. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 269
Score = 71.9 bits (177), Expect = 7e-16
Identities = 43/166 (25%), Positives = 65/166 (39%), Gaps = 25/166 (15%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGVVCH 67
GKV VIT + GIG A+ L+ GA V+I+ R E +A ++KE G+ V +
Sbjct: 1 GKVVVITGANSGIGKETARELAKRGAHVIIACRNEEKGEEAAAEIKKETGNAKVEVIQLD 60
Query: 68 VANTDERQKLFEHCSEVV-----------------------WDKIFDVNLKSSFLLTQEV 104
+++ ++ E ++ F VN FLLT +
Sbjct: 61 LSSLASVRQFAEEFLARFPRLDILINNAGIMAPPRRLTKDGFELQFAVNYLGHFLLTNLL 120
Query: 105 LPYMRKKKGGSIVYVSSIGG-FKQFKVSILILRPATPYQYKLSYQQ 149
LP ++ IV VSSI + L L Y +Y Q
Sbjct: 121 LPVLKASAPSRIVNVSSIAHRAGPIDFNDLDLENNKEYSPYKAYGQ 166
>gnl|CDD|187611 cd05353, hydroxyacyl-CoA-like_DH_SDR_c-like, (3R)-hydroxyacyl-CoA
dehydrogenase-like, classical(c)-like SDRs. Beta
oxidation of fatty acids in eukaryotes occurs by a
four-reaction cycle, that may take place in mitochondria
or in peroxisomes. (3R)-hydroxyacyl-CoA dehydrogenase is
part of rat peroxisomal multifunctional MFE-2, it is a
member of the NAD-dependent SDRs, but contains an
additional small C-terminal domain that completes the
active site pocket and participates in dimerization. The
atypical, additional C-terminal extension allows for
more extensive dimerization contact than other SDRs.
MFE-2 catalyzes the second and third reactions of the
peroxisomal beta oxidation cycle. Proteins in this
subgroup have a typical catalytic triad, but have a His
in place of the usual upstream Asn. This subgroup also
contains members identified as 17-beta-hydroxysteroid
dehydrogenases, including human peroxisomal
17-beta-hydroxysteroid dehydrogenase type 4 (17beta-HSD
type 4, aka MFE-2, encoded by HSD17B4 gene) which is
involved in fatty acid beta-oxidation and steroid
metabolism. This subgroup also includes two SDR domains
of the Neurospora crassa and Saccharomyces cerevisiae
multifunctional beta-oxidation protein (MFP, aka Fox2).
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 250
Score = 71.2 bits (175), Expect = 1e-15
Identities = 46/163 (28%), Positives = 66/163 (40%), Gaps = 48/163 (29%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVI---------SSRKESNVNKAVETLQKE 56
R G+V ++T + G+G A A + GA VV+ S + S +K V+ ++
Sbjct: 2 RFDGRVVLVTGAGGGLGRAYALAFAERGAKVVVNDLGGDRKGSGKSSSAADKVVDEIKAA 61
Query: 57 GHQNVSGVVCHVANTDE----------------------------RQKLFEHCSEVVWDK 88
G + V AN D R + F SE WD
Sbjct: 62 GGKAV-------ANYDSVEDGEKIVKTAIDAFGRVDILVNNAGILRDRSFAKMSEEDWDL 114
Query: 89 IFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSS----IGGFKQ 127
+ V+LK SF +T+ PYMRK+K G I+ SS G F Q
Sbjct: 115 VMRVHLKGSFKVTRAAWPYMRKQKFGRIINTSSAAGLYGNFGQ 157
>gnl|CDD|187584 cd05323, ADH_SDR_c_like, insect type alcohol dehydrogenase
(ADH)-like, classical (c) SDRs. This subgroup contains
insect type ADH, and 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) type I; these proteins are
classical SDRs. ADH catalyzes the NAD+-dependent
oxidation of alcohols to aldehydes/ketones. This
subgroup is distinct from the zinc-dependent alcohol
dehydrogenases of the medium chain
dehydrogenase/reductase family, and evolved in fruit
flies to allow the digestion of fermenting fruit.
15-PGDH catalyzes the NAD-dependent interconversion of
(5Z,13E)-(15S)-11alpha,15-dihydroxy-9-oxoprost-13-enoate
and (5Z,13E)-11alpha-hydroxy-9,15-dioxoprost-13-enoate,
and has a typical SDR glycine-rich NAD-binding motif,
which is not fully present in ADH. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 70.8 bits (174), Expect = 1e-15
Identities = 43/146 (29%), Positives = 53/146 (36%), Gaps = 31/146 (21%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KVA+IT GIG A AK L +GA V I R E N A E + V C V
Sbjct: 1 KVAIITGGASGIGLATAKLLLKKGAKVAILDRNE-NPGAAAELQAINPKVKATFVQCDVT 59
Query: 70 NTDERQKLFEH---------------------------CSEVVWDKIFDVNLKSSFLLTQ 102
+ ++ F+ W+K DVNL T
Sbjct: 60 SWEQLAAAFKKAIEKFGRVDILINNAGILDEKSYLFAGKLPPPWEKTIDVNLTGVINTTY 119
Query: 103 EVLPYMRKKK---GGSIVYVSSIGGF 125
L YM K K GG IV + S+ G
Sbjct: 120 LALHYMDKNKGGKGGVIVNIGSVAGL 145
>gnl|CDD|187644 cd08940, HBDH_SDR_c, d-3-hydroxybutyrate dehydrogenase (HBDH),
classical (c) SDRs. DHBDH, an NAD+ -dependent enzyme,
catalyzes the interconversion of D-3-hydroxybutyrate and
acetoacetate. It is a classical SDR, with the canonical
NAD-binding motif and active site tetrad. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 70.9 bits (174), Expect = 1e-15
Identities = 37/142 (26%), Positives = 65/142 (45%), Gaps = 26/142 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH---------- 58
GKVA++T ST GIG IA+ L+A GA++V++ ++ +AV H
Sbjct: 2 GKVALVTGSTSGIGLGIARALAAAGANIVLNGFGDAAEIEAVRAGLAAKHGVKVLYHGAD 61
Query: 59 ----QNVSGVVCHVANTDERQKLF------EHCSEV------VWDKIFDVNLKSSFLLTQ 102
+ +V + + +H + + WD I +NL + F T+
Sbjct: 62 LSKPAAIEDMVAYAQRQFGGVDILVNNAGIQHVAPIEDFPTEKWDAIIALNLSAVFHTTR 121
Query: 103 EVLPYMRKKKGGSIVYVSSIGG 124
LP+M+K+ G I+ ++S+ G
Sbjct: 122 LALPHMKKQGWGRIINIASVHG 143
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 70.6 bits (173), Expect = 2e-15
Identities = 37/135 (27%), Positives = 68/135 (50%), Gaps = 19/135 (14%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKE-------------SN---VNKAV 50
L KVA++T ++GIG A+ RL EG++V+ KE SN V K +
Sbjct: 4 LKDKVAIVTGGSQGIGKAVVNRLKEEGSNVINFDIKEPSYNDVDYFKVDVSNKEQVIKGI 63
Query: 51 ETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRK 110
+ + + + + ++ + A + + E WD+I +VN+ FL+++ +PYM K
Sbjct: 64 DYVISK-YGRID-ILVNNAGIESYGAI-HAVEEDEWDRIINVNVNGIFLMSKYTIPYMLK 120
Query: 111 KKGGSIVYVSSIGGF 125
+ G I+ ++S+ F
Sbjct: 121 QDKGVIINIASVQSF 135
>gnl|CDD|187639 cd08934, CAD_SDR_c, clavulanic acid dehydrogenase (CAD), classical
(c) SDR. CAD catalyzes the NADP-dependent reduction of
clavulanate-9-aldehyde to clavulanic acid, a
beta-lactamase inhibitor. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 243
Score = 70.3 bits (172), Expect = 2e-15
Identities = 41/145 (28%), Positives = 66/145 (45%), Gaps = 30/145 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVA++T ++ GIG A A+ L+AEGA+V I++R+ + + L+ EG + +
Sbjct: 1 LQGKVALVTGASSGIGEATARALAAEGAAVAIAARRVDRLEALADELEAEGGK-ALVLEL 59
Query: 67 HVANTDERQ---------KLFEHCSEVV------------------WDKIFDVNLKSSFL 99
V TDE+Q + +V W ++ D NL
Sbjct: 60 DV--TDEQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLLGLMY 117
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
T LP+ + G+IV +SS+ G
Sbjct: 118 TTHAALPHHLLRNKGTIVNISSVAG 142
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 70.5 bits (173), Expect = 2e-15
Identities = 36/147 (24%), Positives = 62/147 (42%), Gaps = 26/147 (17%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH-QNVSGV 64
RL GKVA++T + +GIG AIA+ + EGA+V ++ + +A + ++ V V
Sbjct: 4 RLAGKVALVTGAAQGIGAAIARAFAREGAAVALADLDAALAERAAAAIARDVAGARVLAV 63
Query: 65 VCHVANTDERQKLFE-------------------------HCSEVVWDKIFDVNLKSSFL 99
V + ++ W + F V+L ++
Sbjct: 64 PADVTDAASVAAAVAAAEEAFGPLDVLVNNAGINVFADPLAMTDEDWRRCFAVDLDGAWN 123
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+ VLP M ++ GSIV ++S FK
Sbjct: 124 GCRAVLPGMVERGRGSIVNIASTHAFK 150
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 70.2 bits (172), Expect = 2e-15
Identities = 43/154 (27%), Positives = 66/154 (42%), Gaps = 28/154 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
GKVA++T GIG A A + EGA VV++ R + + V +++ G + + V
Sbjct: 4 TFSGKVALVTGGAAGIGRATALAFAREGAKVVVADRDAAGGEETVALIREAGGEALF-VA 62
Query: 66 CHVANTDERQKLFEHC--------------------------SEVVWDKIFDVNLKSSFL 99
C V E + L E SE +D I VN+K +L
Sbjct: 63 CDVTRDAEVKALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEGSEAEFDAIMGVNVKGVWL 122
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFKQF-KVSI 132
+ +P M + GG+IV +S+ G K+SI
Sbjct: 123 CMKYQIPLMLAQGGGAIVNTASVAGLGAAPKMSI 156
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 70.2 bits (172), Expect = 2e-15
Identities = 44/144 (30%), Positives = 70/144 (48%), Gaps = 27/144 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG------HQ 59
RL KVAVIT ++ GIG A A L+ EGA V+ E+ V++ V+ ++ G H
Sbjct: 3 RLENKVAVITGASTGIGQASAIALAQEGAYVLAVDIAEA-VSETVDKIKSNGGKAKAYHV 61
Query: 60 NVSGVVCHVANTDERQKLFEHCSEV-------------------VWDKIFDVNLKSSFLL 100
++S E ++ F + V+DKI V+++ +FL+
Sbjct: 62 DISDEQQVKDFASEIKEQFGRVDVLFNNAGVDNAAGRIHEYPVDVFDKIMAVDMRGTFLM 121
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
T+ +LP M ++GGSI+ SS G
Sbjct: 122 TKMLLPLMM-EQGGSIINTSSFSG 144
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 70.0 bits (172), Expect = 3e-15
Identities = 38/143 (26%), Positives = 66/143 (46%), Gaps = 28/143 (19%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GKV +IT ++EGIG A+A RL+ GA +V+++R E+ + + L G + V V
Sbjct: 1 GKVVIITGASEGIGRALAVRLARAGAQLVLAARNETRLASLAQELADHGGE-ALVVPTDV 59
Query: 69 ANTDERQKLFE-------------------HCSEV-------VWDKIFDVNLKSSFLLTQ 102
++ + ++L E S V++++ VN + T
Sbjct: 60 SDAEACERLIEAAVARFGGIDILVNNAGITMWSRFDELTDLSVFERVMRVNYLGAVYCTH 119
Query: 103 EVLPYMRKKKGGSIVYVSSIGGF 125
LP+++ + G IV VSS+ G
Sbjct: 120 AALPHLKASR-GQIVVVSSLAGL 141
>gnl|CDD|187587 cd05326, secoisolariciresinol-DH_like_SDR_c, secoisolariciresinol
dehydrogenase (secoisolariciresinol-DH)-like, classical
(c) SDRs. Podophyllum secoisolariciresinol-DH is a homo
tetrameric, classical SDR that catalyzes the
NAD-dependent conversion of (-)-secoisolariciresinol to
(-)-matairesinol via a (-)-lactol intermediate.
(-)-Matairesinol is an intermediate to various
8'-lignans, including the cancer-preventive mammalian
lignan, and those involved in vascular plant defense.
This subgroup also includes rice momilactone A synthase
which catalyzes the conversion of
3beta-hydroxy-9betaH-pimara-7,15-dien-19,6beta-olide
into momilactone A, Arabidopsis ABA2 which during
abscisic acid (ABA) biosynthesis, catalyzes the
conversion of xanthoxin to abscisic aldehyde and, maize
Tasselseed2 which participate in the maize sex
determination pathway. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering). In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 249
Score = 69.8 bits (171), Expect = 3e-15
Identities = 40/147 (27%), Positives = 59/147 (40%), Gaps = 30/147 (20%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GKVA+IT GIG A A+ + GA VVI+ + L G ++S V
Sbjct: 1 RLDGKVAIITGGASGIGEATARLFAKHGARVVIADIDDDAGQAVAAEL---GDPDISFVH 57
Query: 66 CHVANTDERQKLFEH---------------------------CSEVVWDKIFDVNLKSSF 98
C V + + + S ++++ DVN+ +F
Sbjct: 58 CDVTVEADVRAAVDTAVARFGRLDIMFNNAGVLGAPCYSILETSLEEFERVLDVNVYGAF 117
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L T+ M K GSIV V+S+ G
Sbjct: 118 LGTKHAARVMIPAKKGSIVSVASVAGV 144
>gnl|CDD|187622 cd05364, SDR_c11, classical (c) SDR, subgroup 11. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 253
Score = 69.4 bits (170), Expect = 4e-15
Identities = 35/149 (23%), Positives = 65/149 (43%), Gaps = 28/149 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH--QNVSGV 64
L GKVA+IT S+ GIG A + GA + ++ R + + ++ + G + + V
Sbjct: 1 LSGKVAIITGSSSGIGAGTAILFARLGARLALTGRDAERLEETRQSCLQAGVSEKKILLV 60
Query: 65 VCHVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSFL 99
V + + + ++ +DK+ ++NL++
Sbjct: 61 VADLTEEEGQDRIISTTLAKFGRLDILVNNAGILAKGGGEDQDIEEYDKVMNLNLRAVIY 120
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFKQF 128
LT+ +P++ K K G IV VSS+ G + F
Sbjct: 121 LTKLAVPHLIKTK-GEIVNVSSVAGGRSF 148
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 69.0 bits (169), Expect = 6e-15
Identities = 38/141 (26%), Positives = 61/141 (43%), Gaps = 26/141 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK +IT S +GIGF +A L+ GA ++I+ AV L++EG +
Sbjct: 7 LAGKNILITGSAQGIGFLLATGLAEYGAEIIINDITAERAELAVAKLRQEGIKAH-AAPF 65
Query: 67 HVANTDERQKLFEHCS-------------------------EVVWDKIFDVNLKSSFLLT 101
+V + E + EH E W+ + VN + FL++
Sbjct: 66 NVTHKQEVEAAIEHIEKDIGPIDVLINNAGIQRRHPFTEFPEQEWNDVIAVNQTAVFLVS 125
Query: 102 QEVLPYMRKKKGGSIVYVSSI 122
Q V YM K++ G I+ + S+
Sbjct: 126 QAVARYMVKRQAGKIINICSM 146
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 69.1 bits (170), Expect = 6e-15
Identities = 33/138 (23%), Positives = 55/138 (39%), Gaps = 31/138 (22%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESN------------------VNK 48
GK +T + +GIG+A+A GA V+ + V +
Sbjct: 6 FSGKTVWVTGAAQGIGYAVALAFVEAGAKVIGFDQAFLTQEDYPFATFVLDVSDAAAVAQ 65
Query: 49 AVETLQKEGHQ-----NVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQE 103
+ L E N +G++ + TD S+ W + F VN +F L +
Sbjct: 66 VCQRLLAETGPLDVLVNAAGIL-RMGATDS-------LSDEDWQQTFAVNAGGAFNLFRA 117
Query: 104 VLPYMRKKKGGSIVYVSS 121
V+P R+++ G+IV V S
Sbjct: 118 VMPQFRRQRSGAIVTVGS 135
>gnl|CDD|187593 cd05332, 11beta-HSD1_like_SDR_c, 11beta-hydroxysteroid
dehydrogenase type 1 (11beta-HSD1)-like, classical (c)
SDRs. Human 11beta_HSD1 catalyzes the NADP(H)-dependent
interconversion of cortisone and cortisol. This subgroup
also includes human dehydrogenase/reductase SDR family
member 7C (DHRS7C) and DHRS7B. These proteins have the
GxxxGxG nucleotide binding motif and S-Y-K catalytic
triad characteristic of the SDRs, but have an atypical
C-terminal domain that contributes to homodimerization
contacts. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 69.2 bits (170), Expect = 6e-15
Identities = 39/141 (27%), Positives = 65/141 (46%), Gaps = 25/141 (17%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GKV +IT ++ GIG +A L+ GA +V+S+R+E + + + G + V +
Sbjct: 3 GKVVIITGASSGIGEELAYHLARLGARLVLSARREERLEEVKSECLELGAPSPHVVPLDM 62
Query: 69 ANTDERQK-------------------------LFEHCSEVVWDKIFDVNLKSSFLLTQE 103
++ ++ ++ LF S V KI +VN LT+
Sbjct: 63 SDLEDAEQVVEEALKLFGGLDILINNAGISMRSLFHDTSIDVDRKIMEVNYFGPVALTKA 122
Query: 104 VLPYMRKKKGGSIVYVSSIGG 124
LP++ ++ GSIV VSSI G
Sbjct: 123 ALPHLIERSQGSIVVVSSIAG 143
>gnl|CDD|169389 PRK08339, PRK08339, short chain dehydrogenase; Provisional.
Length = 263
Score = 68.3 bits (167), Expect = 1e-14
Identities = 38/140 (27%), Positives = 69/140 (49%), Gaps = 24/140 (17%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK+A TAS++GIGF +A+ L+ GA V++ SR E N+ KA E ++ E + +VS +V
Sbjct: 6 LSGKLAFTTASSKGIGFGVARVLARAGADVILLSRNEENLKKAREKIKSESNVDVSYIVA 65
Query: 67 HVANTDERQKLFEHCSEVV------------------------WDKIFDVNLKSSFLLTQ 102
+ ++ ++ + + W+ + L + LT+
Sbjct: 66 DLTKREDLERTVKELKNIGEPDIFFFSTGGPKPGYFMEMSMEDWEGAVKLLLYPAVYLTR 125
Query: 103 EVLPYMRKKKGGSIVYVSSI 122
++P M +K G I+Y +S+
Sbjct: 126 ALVPAMERKGFGRIIYSTSV 145
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 68.1 bits (167), Expect = 2e-14
Identities = 40/145 (27%), Positives = 66/145 (45%), Gaps = 28/145 (19%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETLQKEGHQ---- 59
RL GKVA++T T+G+G AIA+ + GA +VI R L+ G +
Sbjct: 2 GRLDGKVALVTGGTQGLGAAIARAFAERGAAGLVICGRNAEKGEAQAAELEALGAKAVFV 61
Query: 60 --------NVSGVV-------------CHVANTDERQKLFEHCSEVVWDKIFDVNLKSSF 98
+ VV + A +R + + S ++D+ F VN+++ F
Sbjct: 62 QADLSDVEDCRRVVAAADEAFGRLDALVNAAGLTDRGTILD-TSPELFDRHFAVNVRAPF 120
Query: 99 LLTQEVLPYMRKKKG-GSIVYVSSI 122
L QE + MR++K G+IV + S+
Sbjct: 121 FLMQEAIKLMRRRKAEGTIVNIGSM 145
>gnl|CDD|212493 cd08932, HetN_like_SDR_c, HetN oxidoreductase-like, classical (c)
SDR. This subgroup includes Anabaena sp. strain PCC
7120 HetN, a putative oxidoreductase involved in
heterocyst differentiation, and related proteins. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 223
Score = 67.0 bits (164), Expect = 2e-14
Identities = 31/140 (22%), Positives = 58/140 (41%), Gaps = 30/140 (21%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KVA++T ++ GIG IA+ L+ +G V + R N G V V
Sbjct: 1 KVALVTGASRGIGIEIARALARDGYRVSLGLR---NPEDLAALSASGGD--VEAVPYDAR 55
Query: 70 NTDERQKLFE-------------HC------------SEVVWDKIFDVNLKSSFLLTQEV 104
+ ++ + L + H S+ + F +N+ + LT+ +
Sbjct: 56 DPEDARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSINVIAPAELTRAL 115
Query: 105 LPYMRKKKGGSIVYVSSIGG 124
LP +R+ G +V+++S+ G
Sbjct: 116 LPALREAGSGRVVFLNSLSG 135
>gnl|CDD|187617 cd05359, ChcA_like_SDR_c, 1-cyclohexenylcarbonyl_coenzyme
A_reductase (ChcA)_like, classical (c) SDRs. This
subgroup contains classical SDR proteins, including
members identified as 1-cyclohexenylcarbonyl coenzyme A
reductase. ChcA of Streptomyces collinus is implicated
in the final reduction step of shikimic acid to
ansatrienin. ChcA shows sequence similarity to the SDR
family of NAD-binding proteins, but it lacks the
conserved Tyr of the characteristic catalytic site. This
subgroup also contains the NADH-dependent
enoyl-[acyl-carrier-protein(ACP)] reductase FabL from
Bacillus subtilis. This enzyme participates in bacterial
fatty acid synthesis, in type II fatty-acid synthases
and catalyzes the last step in each elongation cycle.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 242
Score = 67.0 bits (164), Expect = 3e-14
Identities = 38/137 (27%), Positives = 58/137 (42%), Gaps = 25/137 (18%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANT 71
A++T + GIG AIA RL+ GA VVI+ RK + V +E V V+
Sbjct: 1 ALVTGGSRGIGKAIALRLAERGADVVINYRKSKDAAAEVAAEIEELGGKAVVVRADVSQP 60
Query: 72 DERQKLF----EHC---------------------SEVVWDKIFDVNLKSSFLLTQEVLP 106
+ +++F E + WD + NLK+ Q+
Sbjct: 61 QDVEEMFAAVKERFGRLDVLVSNAAAGAFRPLSELTPAHWDAKMNTNLKALVHCAQQAAK 120
Query: 107 YMRKKKGGSIVYVSSIG 123
MR++ GG IV +SS+G
Sbjct: 121 LMRERGGGRIVAISSLG 137
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 66.9 bits (164), Expect = 3e-14
Identities = 32/144 (22%), Positives = 53/144 (36%), Gaps = 26/144 (18%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
A+IT ++ GIG A A + G + + +R + + L+ G + ++
Sbjct: 7 PRALITGASSGIGKATALAFAKAGWDLALVARSQDALEALAAELRSTG-VKAAAYSIDLS 65
Query: 70 NTDE-RQKL------FEHCSEVV------------------WDKIFDVNLKSSFLLTQEV 104
N + + F ++ W + +NL S F V
Sbjct: 66 NPEAIAPGIAELLEQFGCPDVLINNAGMAYTGPLLEMPLSDWQWVIQLNLTSVFQCCSAV 125
Query: 105 LPYMRKKKGGSIVYVSSIGGFKQF 128
LP MR + GG I+ VSSI F
Sbjct: 126 LPGMRARGGGLIINVSSIAARNAF 149
>gnl|CDD|187598 cd05339, 17beta-HSDXI-like_SDR_c, human 17-beta-hydroxysteroid
dehydrogenase XI-like, classical (c) SDRs.
17-beta-hydroxysteroid dehydrogenases (17betaHSD) are a
group of isozymes that catalyze activation and
inactivation of estrogen and androgens. 17betaHSD type
XI, a classical SDR, preferentially converts
3alpha-adiol to androsterone but not numerous other
tested steroids. This subgroup of classical SDRs also
includes members identified as retinol dehydrogenases,
which convert retinol to retinal, a property that
overlaps with 17betaHSD activity. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 66.5 bits (163), Expect = 5e-14
Identities = 33/140 (23%), Positives = 53/140 (37%), Gaps = 26/140 (18%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVAN 70
+ +IT GIG +A + GA VVI E + ++K G + V C V+
Sbjct: 1 IVLITGGGSGIGRLLALEFAKRGAKVVILDINEKGAEETANNVRKAGGK-VHYYKCDVSK 59
Query: 71 TDERQ-------------------------KLFEHCSEVVWDKIFDVNLKSSFLLTQEVL 105
+E K + +K F+VN + F T+ L
Sbjct: 60 REEVYEAAKKIKKEVGDVTILINNAGVVSGKKLLELPDEEIEKTFEVNTLAHFWTTKAFL 119
Query: 106 PYMRKKKGGSIVYVSSIGGF 125
P M ++ G IV ++S+ G
Sbjct: 120 PDMLERNHGHIVTIASVAGL 139
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 66.6 bits (163), Expect = 5e-14
Identities = 37/148 (25%), Positives = 50/148 (33%), Gaps = 37/148 (25%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
L GKVA++T IG A+A+ L A GA V I N +L
Sbjct: 2 IGLAGKVAIVTGGATLIGAAVARALVAAGARVAIVDIDADNGAAVAASL------GERAR 55
Query: 65 VCHVANTDERQKLFEHCSEVV----------------------------WDKIFDVNLKS 96
TD+ E V W DVNL S
Sbjct: 56 FIATDITDDAA--IERAVATVVARFGRVDILVNLACTYLDDGLASSRADWLAALDVNLVS 113
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
+ +L Q P++ + GG+IV +SI
Sbjct: 114 AAMLAQAAHPHL-ARGGGAIVNFTSISA 140
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 66.4 bits (162), Expect = 5e-14
Identities = 30/146 (20%), Positives = 59/146 (40%), Gaps = 24/146 (16%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV------------- 50
L GKV IT G+G A A L+A GA V + R + +++ +
Sbjct: 2 EHSLQGKVVAITGGFGGLGRATAAWLAARGARVALIGRGAAPLSQTLPGVPADALRIGGI 61
Query: 51 --------ETLQKEGHQNVSGV--VCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLL 100
E ++ + + ++A + + ++ WD+++ VN+K++
Sbjct: 62 DLVDPQAARRAVDEVNRQFGRLDALVNIAGAFVWGTIADGDADT-WDRMYGVNVKTTLNA 120
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGGFK 126
++ LP + GG IV + + K
Sbjct: 121 SKAALPALTASGGGRIVNIGAGAALK 146
>gnl|CDD|188169 TIGR01829, AcAcCoA_reduct, acetoacetyl-CoA reductase. This model
represent acetoacetyl-CoA reductase, a member of the
family short-chain-alcohol dehydrogenases. Note that,
despite the precision implied by the enzyme name, the
reaction of EC 1.1.1.36 is defined more generally as
(R)-3-hydroxyacyl-CoA + NADP+ = 3-oxoacyl-CoA + NADPH.
Members of this family may act in the biosynthesis of
poly-beta-hydroxybutyrate (e.g. Rhizobium meliloti) and
related poly-beta-hydroxyalkanoates. Note that the
member of this family from Azospirillum brasilense,
designated NodG, appears to lack acetoacetyl-CoA
reductase activity and to act instead in the production
of nodulation factor. This family is downgraded to
subfamily for this NodG. Other proteins designated NodG,
as from Rhizobium, belong to related but distinct
protein families.
Length = 242
Score = 66.3 bits (162), Expect = 6e-14
Identities = 38/147 (25%), Positives = 63/147 (42%), Gaps = 30/147 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ--NVSGVVCH 67
++A++T GIG AI +RL+ +G V + +A LQ++G + V
Sbjct: 1 RIALVTGGMGGIGTAICQRLAKDGYRVAANCGPNEE--RAEAWLQEQGALGFDFRVVEGD 58
Query: 68 VANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLLTQ 102
V++ + R F+ + W + D NL S F +TQ
Sbjct: 59 VSSFESCKAAVAKVEAELGPIDVLVNNAGITRDATFKKMTYEQWSAVIDTNLNSVFNVTQ 118
Query: 103 EVLPYMRKKKGGSIVYVSSIGGFK-QF 128
V+ MR++ G I+ +SS+ G K QF
Sbjct: 119 PVIDGMRERGWGRIINISSVNGQKGQF 145
>gnl|CDD|187628 cd05370, SDR_c2, classical (c) SDR, subgroup 2. Short-chain
dehydrogenases/reductases (SDRs, aka Tyrosine-dependent
oxidoreductases) are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 228
Score = 65.8 bits (161), Expect = 7e-14
Identities = 36/147 (24%), Positives = 59/147 (40%), Gaps = 34/147 (23%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L G +IT T GIG A+A++ G +V+I+ R+E + +KE N+ +V
Sbjct: 3 LTGNTVLITGGTSGIGLALARKFLEAGNTVIITGRREER----LAEAKKE-LPNIHTIVL 57
Query: 67 HVANTDERQKLFEHC----------------------------SEVVWDKIFDVNLKSSF 98
V + + + L E + +I D NL
Sbjct: 58 DVGDAESVEALAEALLSEYPNLDILINNAGIQRPIDLRDPASDLDKADTEI-DTNLIGPI 116
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L + LP+++K+ +IV VSS F
Sbjct: 117 RLIKAFLPHLKKQPEATIVNVSSGLAF 143
>gnl|CDD|187646 cd08942, RhlG_SDR_c, RhlG and related beta-ketoacyl reductases,
classical (c) SDRs. Pseudomonas aeruginosa RhlG is an
SDR-family beta-ketoacyl reductase involved in
Rhamnolipid biosynthesis. RhlG is similar to but
distinct from the FabG family of beta-ketoacyl-acyl
carrier protein (ACP) of type II fatty acid synthesis.
RhlG and related proteins are classical SDRs, with a
canonical active site tetrad and glycine-rich
NAD(P)-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 66.0 bits (161), Expect = 7e-14
Identities = 42/145 (28%), Positives = 63/145 (43%), Gaps = 27/145 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH-------- 58
+ GK+ ++T + GIG IA+ GA V+IS+RK A E L G
Sbjct: 4 VAGKIVLVTGGSRGIGRMIAQGFLEAGARVIISARKAEACADAAEELSAYGECIAIPADL 63
Query: 59 ---QNVSGVVCHVANTDERQKL------------FEHCSEVVWDKIFDVNLKSSFLLTQE 103
+ + +V VA +R + E E WDK+ D+N+KS F LTQ
Sbjct: 64 SSEEGIEALVARVAERSDRLDVLVNNAGATWGAPLEAFPESGWDKVMDINVKSVFFLTQA 123
Query: 104 VLPYMRKKKG----GSIVYVSSIGG 124
+LP +R ++ + SI G
Sbjct: 124 LLPLLRAAATAENPARVINIGSIAG 148
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 66.0 bits (161), Expect = 8e-14
Identities = 39/144 (27%), Positives = 63/144 (43%), Gaps = 27/144 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
+L GK A+IT + +GIG IA+ + GA++++ + K + L GH+ + VV
Sbjct: 3 KLTGKTALITGALQGIGEGIARVFARHGANLILLDISPE-IEKLADELCGRGHRCTA-VV 60
Query: 66 CHVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLL 100
V + R F S+ D D+N+K + +
Sbjct: 61 ADVRDPASVAAAIKRAKEKEGRIDILVNNAGVCRLGSFLDMSDEDRDFHIDINIKGVWNV 120
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
T+ VLP M +K G IV +SS+ G
Sbjct: 121 TKAVLPEMIARKDGRIVMMSSVTG 144
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 65.8 bits (161), Expect = 1e-13
Identities = 49/148 (33%), Positives = 70/148 (47%), Gaps = 36/148 (24%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVV--------------------ISSRKESNV 46
L GK+ ++T + GIG AI K L A GA+VV +SS +E V
Sbjct: 7 LQGKIIIVTGGSSGIGLAIVKELLANGANVVNADIHGGDGQHENYQFVPTDVSSAEE--V 64
Query: 47 NKAV-ETLQKEGHQNVSGVVCH---------VANTDERQKLFEHCSEVVWDKIFDVNLKS 96
N V E ++K G + G+V + V D K +E E +DK+F++N K
Sbjct: 65 NHTVAEIIEKFGR--IDGLVNNAGINIPRLLVDEKDPAGK-YELN-EAAFDKMFNINQKG 120
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
FL++Q V M K+ G IV +SS G
Sbjct: 121 VFLMSQAVARQMVKQHDGVIVNMSSEAG 148
>gnl|CDD|187610 cd05352, MDH-like_SDR_c, mannitol dehydrogenase (MDH)-like,
classical (c) SDRs. NADP-mannitol dehydrogenase
catalyzes the conversion of fructose to mannitol, an
acyclic 6-carbon sugar. MDH is a tetrameric member of
the SDR family. This subgroup also includes various
other tetrameric SDRs, including Pichia stipitis
D-arabinitol dehydrogenase (aka polyol dehydrogenase),
Candida albicans Sou1p, a sorbose reductase, and Candida
parapsilosis (S)-specific carbonyl reductase (SCR, aka
S-specific alcohol dehydrogenase) which catalyzes the
enantioselective reduction of 2-hydroxyacetophenone into
(S)-1-phenyl-1,2-ethanediol. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser).
Length = 252
Score = 65.4 bits (160), Expect = 1e-13
Identities = 37/144 (25%), Positives = 58/144 (40%), Gaps = 25/144 (17%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GKVA++T + GIG AIA+ L+ GA V I + E L K+
Sbjct: 5 SLKGKVAIVTGGSRGIGLAIARALAEAGADVAIIYNSAPRAEEKAEELAKKYGVKTKAYK 64
Query: 66 CHVANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFLL 100
C V++ + +K F+ + W+K+ DVNL F
Sbjct: 65 CDVSSQESVEKTFKQIQKDFGKIDILIANAGITVHKPALDYTYEQWNKVIDVNLNGVFNC 124
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
Q +K+ GS++ +S+ G
Sbjct: 125 AQAAAKIFKKQGKGSLIITASMSG 148
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 65.4 bits (160), Expect = 1e-13
Identities = 33/147 (22%), Positives = 58/147 (39%), Gaps = 35/147 (23%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKES-NVNKAVETLQKEGHQNVSGVVCHV 68
VA++T GIG IA+ L+A G + I+ R + + + L+ G + + V
Sbjct: 3 PVALVTGGRRGIGLGIARALAAAGFDLAINDRPDDEELAATQQELRALGVEVIF-FPADV 61
Query: 69 ANTDERQKLFE---------HC------------------SEVVWDKIFDVNLKSSFLLT 101
A+ + + + C + +D++ +NL+ F LT
Sbjct: 62 ADLSAHEAMLDAAQAAWGRIDCLVNNAGVGVKVRGDLLDLTPESFDRVLAINLRGPFFLT 121
Query: 102 QEVLPYMRKKKG------GSIVYVSSI 122
Q V M + SIV+VSS+
Sbjct: 122 QAVAKRMLAQPEPEELPHRSIVFVSSV 148
>gnl|CDD|187635 cd08930, SDR_c8, classical (c) SDR, subgroup 8. This subgroup has
a fairly well conserved active site tetrad and domain
size of the classical SDRs, but has an atypical
NAD-binding motif ([ST]G[GA]XGXXG). SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 65.0 bits (159), Expect = 2e-13
Identities = 30/144 (20%), Positives = 58/144 (40%), Gaps = 28/144 (19%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
K+ +IT + IG A K L + GA ++++ + + E L V + +
Sbjct: 2 DKIILITGAAGLIGKAFCKALLSAGARLILADINAPALEQLKEELTNLYKNRVIALELDI 61
Query: 69 ANTDERQKLFEHCSEVV----------------------------WDKIFDVNLKSSFLL 100
+ + ++L E E W+++ +VNL +FL
Sbjct: 62 TSKESIKELIESYLEKFGRIDILINNAYPSPKVWGSRFEEFPYEQWNEVLNVNLGGAFLC 121
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
+Q + +K+ GSI+ ++SI G
Sbjct: 122 SQAFIKLFKKQGKGSIINIASIYG 145
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 65.1 bits (159), Expect = 2e-13
Identities = 37/150 (24%), Positives = 66/150 (44%), Gaps = 27/150 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKEGHQNVSGV 64
GKVA++T S+ GIG AIA RL+ EG + ++ +R + E ++ G + ++ V
Sbjct: 1 VFSGKVALVTGSSRGIGKAIALRLAEEGYDIAVNYARSRKAAEETAEEIEALGRKALA-V 59
Query: 65 VCHVANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFL 99
+V + ++ +++F E WD ++N K+
Sbjct: 60 KANVGDVEKIKEMFAQIDEEFGRLDVFVNNAASGVLRPAMELEESHWDWTMNINAKALLF 119
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFKQFK 129
QE M K GG I+ +SS+G + +
Sbjct: 120 CAQEAAKLMEKVGGGKIISLSSLGSIRYLE 149
>gnl|CDD|187623 cd05365, 7_alpha_HSDH_SDR_c, 7 alpha-hydroxysteroid dehydrogenase
(7 alpha-HSDH), classical (c) SDRs. This bacterial
subgroup contains 7 alpha-HSDHs, including Escherichia
coli 7 alpha-HSDH. 7 alpha-HSDH, a member of the SDR
family, catalyzes the NAD+ -dependent dehydrogenation of
a hydroxyl group at position 7 of the steroid skeleton
of bile acids. In humans the two primary bile acids are
cholic and chenodeoxycholic acids, these are formed from
cholesterol in the liver. Escherichia coli 7 alpha-HSDH
dehydroxylates these bile acids in the human intestine.
Mammalian 7 alpha-HSDH activity has been found in
livers. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 242
Score = 64.9 bits (158), Expect = 2e-13
Identities = 39/140 (27%), Positives = 65/140 (46%), Gaps = 27/140 (19%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVAN 70
VA++T GIG AIA L+ GASVVI+ K +Q+ G Q + G+ C+V +
Sbjct: 1 VAIVTGGAAGIGKAIAGTLAKAGASVVIADLKSEGAEAVAAAIQQAGGQAI-GLECNVTS 59
Query: 71 TDERQKLFEHC--------------------------SEVVWDKIFDVNLKSSFLLTQEV 104
+ + + + +E ++ F +NL S+F L+Q
Sbjct: 60 EQDLEAVVKATVSQFGGITILVNNAGGGGPKPFDMPMTEEDFEWAFKLNLFSAFRLSQLC 119
Query: 105 LPYMRKKKGGSIVYVSSIGG 124
P+M+K GG+I+ +SS+
Sbjct: 120 APHMQKAGGGAILNISSMSS 139
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 65.4 bits (160), Expect = 2e-13
Identities = 43/146 (29%), Positives = 73/146 (50%), Gaps = 44/146 (30%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRK---------------------ESNVNK 48
KVA++T ++ GIG A A+RL+A+G +V ++R+ E+++
Sbjct: 4 KVALVTGASSGIGKATARRLAAQGYTVYGAARRVDKMEDLASLGVHPLSLDVTDEASIKA 63
Query: 49 AVET-LQKEGHQNV---------SGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSF 98
AV+T + +EG +V G + V + R++ F+VNL +
Sbjct: 64 AVDTIIAEEGRIDVLVNNAGYGSYGAIEDVPIDEARRQ-------------FEVNLFGAA 110
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGG 124
LTQ VLP+MR ++ G I+ +SS+GG
Sbjct: 111 RLTQLVLPHMRAQRSGRIINISSMGG 136
>gnl|CDD|187613 cd05355, SDR_c1, classical (c) SDR, subgroup 1. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 270
Score = 65.0 bits (159), Expect = 2e-13
Identities = 39/156 (25%), Positives = 65/156 (41%), Gaps = 45/156 (28%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVIS--SRKESNVNKAVETLQKEGHQNVSG 63
+L GK A+IT GIG A+A + EGA V I+ +E + + + +++EG +
Sbjct: 23 KLKGKKALITGGDSGIGRAVAIAFAREGADVAINYLPEEEDDAEETKKLIEEEGRK---- 78
Query: 64 VVCHVANTDERQKLFEHCSEVV---------------------------------WDKIF 90
C + D + C ++V +K F
Sbjct: 79 --CLLIPGDLGDE--SFCRDLVKEVVKEFGKLDILVNNAAYQHPQESIEDITTEQLEKTF 134
Query: 91 DVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
N+ S F LT+ LP++ KKG SI+ +S+ +K
Sbjct: 135 RTNIFSMFYLTKAALPHL--KKGSSIINTTSVTAYK 168
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 64.9 bits (159), Expect = 2e-13
Identities = 37/146 (25%), Positives = 60/146 (41%), Gaps = 39/146 (26%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRK------------ESNVNKA--V 50
L GK A++T T+GIG A RL GA VV ++R +++ A
Sbjct: 5 LELAGKRALVTGGTKGIGAATVARLLEAGARVVTTARSRPDDLPEGVEFVAADLTTAEGC 64
Query: 51 ETLQKEGHQNVSGV--VCHVAN------------TDERQKLFEHCSEVVWDKIFDVNLKS 96
+ + + + GV + HV TDE W ++NL +
Sbjct: 65 AAVARAVLERLGGVDILVHVLGGSSAPAGGFAALTDEE-----------WQDELNLNLLA 113
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSI 122
+ L + +LP M + G I++V+SI
Sbjct: 114 AVRLDRALLPGMIARGSGVIIHVTSI 139
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 64.7 bits (158), Expect = 2e-13
Identities = 43/145 (29%), Positives = 64/145 (44%), Gaps = 30/145 (20%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GKVA++T + GIG A+A+R AEGA VVI+ K + A + V
Sbjct: 3 RLQGKVALLTGAASGIGEAVAERYLAEGARVVIADIKPARARLAALEIG----PAAIAVS 58
Query: 66 CHVANTDERQK--------------------LFE-----HCSEVVWDKIFDVNLKSSFLL 100
V D + LF+ S +D++F VN+K F L
Sbjct: 59 LDVTRQDSIDRIVAAAVERFGGIDILFNNAALFDMAPILDISRDSYDRLFAVNVKGLFFL 118
Query: 101 TQEVLPYMRKK-KGGSIVYVSSIGG 124
Q V +M ++ +GG I+ ++S G
Sbjct: 119 MQAVARHMVEQGRGGKIINMASQAG 143
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 64.7 bits (158), Expect = 2e-13
Identities = 39/143 (27%), Positives = 63/143 (44%), Gaps = 28/143 (19%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVETLQKEGHQNVSGVV 65
L GKV VIT + G+G A+A R E A VVI+ R E N E ++K G + ++ V
Sbjct: 5 LEGKVVVITGGSTGLGRAMAVRFGKEKAKVVINYRSDEEEANDVAEEIKKAGGEAIA-VK 63
Query: 66 CHVANTDERQKLFE---------------------HCSEVV----WDKIFDVNLKSSFLL 100
V + L + S + W+K+ + NL +FL
Sbjct: 64 GDVTVESDVVNLIQTAVKEFGTLDVMINNAGIENAVPSHEMSLEDWNKVINTNLTGAFLG 123
Query: 101 TQEVLPYMRKK-KGGSIVYVSSI 122
++E + Y + G+I+ +SS+
Sbjct: 124 SREAIKYFVEHDIKGNIINMSSV 146
>gnl|CDD|187601 cd05343, Mgc4172-like_SDR_c, human Mgc4172-like, classical (c)
SDRs. Human Mgc4172-like proteins, putative SDRs. These
proteins are members of the SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 64.5 bits (157), Expect = 2e-13
Identities = 37/163 (22%), Positives = 67/163 (41%), Gaps = 27/163 (16%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
R G+VA++T ++ GIG A+A+ L G VV +R+ + Q G+ +
Sbjct: 3 RWRGRVALVTGASVGIGAAVARALVQHGMKVVGCARRVDKIEALAAECQSAGYPTLFPYQ 62
Query: 66 CHVANTDERQKLFEHCSEV-------------------------VWDKIFDVNLKSSFLL 100
C ++N ++ +F W ++FDVN+ + +
Sbjct: 63 CDLSNEEQILSMFSAIRTQHQGVDVCINNAGLARPEPLLSGKTEGWKEMFDVNVLALSIC 122
Query: 101 TQEVLPYM--RKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
T+E M R G I+ ++S+ G + VS+ AT +
Sbjct: 123 TREAYQSMKERNVDDGHIININSMSGHRVPPVSVFHFYAATKH 165
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 64.1 bits (157), Expect = 3e-13
Identities = 33/143 (23%), Positives = 61/143 (42%), Gaps = 28/143 (19%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L ++ ++T + +GIG A + GA+V++ R E + + ++ G + +
Sbjct: 10 LKDRIILVTGAGDGIGREAALTYARHGATVILLGRTEEKLEAVYDEIEAAGGPQPAIIPL 69
Query: 67 -----------HVANTDERQ--KL---------------FEHCSEVVWDKIFDVNLKSSF 98
+A+T E Q +L E VW + VN+ ++F
Sbjct: 70 DLLTATPQNYQQLADTIEEQFGRLDGVLHNAGLLGELGPMEQQDPEVWQDVMQVNVNATF 129
Query: 99 LLTQEVLPYMRKKKGGSIVYVSS 121
+LTQ +LP + K S+V+ SS
Sbjct: 130 MLTQALLPLLLKSPAASLVFTSS 152
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 64.1 bits (156), Expect = 4e-13
Identities = 39/145 (26%), Positives = 60/145 (41%), Gaps = 29/145 (20%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GK A+IT + GIG IA + GASVV+S N V+ +Q+ G Q
Sbjct: 8 RLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAF-ACR 66
Query: 66 CHVANTDERQKLFEHC--------------------------SEVVWDKIFDVNLKSSFL 99
C + + E L + ++ +++N+ S F
Sbjct: 67 CDITSEQELSALADFALSKLGKVDILVNNAGGGGPKPFDMPMADFRR--AYELNVFSFFH 124
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
L+Q V P M K GG I+ ++S+
Sbjct: 125 LSQLVAPEMEKNGGGVILTITSMAA 149
>gnl|CDD|187614 cd05356, 17beta-HSD1_like_SDR_c, 17-beta-hydroxysteroid
dehydrogenases (17beta-HSDs) types -1, -3, and -12,
-like, classical (c) SDRs. This subgroup includes
various 17-beta-hydroxysteroid dehydrogenases and
3-ketoacyl-CoA reductase, these are members of the SDR
family, and contain the canonical active site tetrad and
glycine-rich NAD-binding motif of the classical SDRs.
3-ketoacyl-CoA reductase (KAR, aka 17beta-HSD type 12,
encoded by HSD17B12) acts in fatty acid elongation;
17beta- hydroxysteroid dehydrogenases are isozymes that
catalyze activation and inactivation of estrogen and
androgens, and include members of the SDR family.
17beta-estradiol dehydrogenase (aka 17beta-HSD type 1,
encoded by HSD17B1) converts estrone to estradiol.
Estradiol is the predominant female sex hormone.
17beta-HSD type 3 (aka testosterone
17-beta-dehydrogenase 3, encoded by HSD17B3) catalyses
the reduction of androstenedione to testosterone, it
also accepts estrogens as substrates. This subgroup also
contains a putative steroid dehydrogenase let-767 from
Caenorhabditis elegans, mutation in which results in
hypersensitivity to cholesterol limitation. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 239
Score = 63.4 bits (155), Expect = 5e-13
Identities = 33/143 (23%), Positives = 63/143 (44%), Gaps = 26/143 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
G AV+T +T+GIG A A+ L+ G +V++ SR + ++ + ++++ +
Sbjct: 1 GTWAVVTGATDGIGKAYAEELAKRGFNVILISRTQEKLDAVAKEIEEKYGVETKTIAADF 60
Query: 69 ANTDE--------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLLTQ 102
+ D+ + F E I +VN+ ++ +T+
Sbjct: 61 SAGDDIYERIEKELEGLDIGILVNNVGISHSIPEYFLETPEDELQDIINVNVMATLKMTR 120
Query: 103 EVLPYMRKKKGGSIVYVSSIGGF 125
+LP M K+K G+IV +SS G
Sbjct: 121 LILPGMVKRKKGAIVNISSFAGL 143
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 62.2 bits (152), Expect = 6e-13
Identities = 31/144 (21%), Positives = 55/144 (38%), Gaps = 33/144 (22%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGAS-VVISSRKESN--VNKAVETLQKEGHQNVSGVVC 66
+IT T G+G A+A+ L+AEGA +V+ SR+ + V L+ G + V+ C
Sbjct: 1 GTVLITGGTGGLGLALARWLAAEGARHLVLVSRRGPAPGAAELVAELEALGAE-VTVAAC 59
Query: 67 HVANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLLT 101
VA+ D L E + ++++ + ++ L
Sbjct: 60 DVADRDALAALLAALPAALGPLDGVVHNAGVLDDGPLEELTPERFERVLAPKVTGAWNLH 119
Query: 102 QEVLPYMRKKKGGSIVYVSSIGGF 125
+ G+ V SS+ G
Sbjct: 120 ELTRD----LDLGAFVLFSSVAGV 139
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 63.6 bits (155), Expect = 6e-13
Identities = 31/144 (21%), Positives = 60/144 (41%), Gaps = 28/144 (19%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L G+VA++T S G+GF IA+ L+ GA V+++ R + + AV L+ G +
Sbjct: 9 LAGQVALVTGSARGLGFEIARALAGAGAHVLVNGRNAATLEAAVAALRAAGGA-AEALAF 67
Query: 67 HVANTDERQKLFEHCSEVVWDKI--------------------------FDVNLKSSFLL 100
+A+ + F ++ + +L + LL
Sbjct: 68 DIADEEAVAAAFARIDA-EHGRLDILVNNVGARDRRPLAELDDAAIRALLETDLVAPILL 126
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
++ M+++ G I+ ++SI G
Sbjct: 127 SRLAAQRMKRQGYGRIIAITSIAG 150
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 63.6 bits (155), Expect = 6e-13
Identities = 34/141 (24%), Positives = 66/141 (46%), Gaps = 26/141 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG---HQNVSG 63
L G+ A++T S++GIG+A+A+ L+ GA V+++ R + + A E+L+ +G H
Sbjct: 8 LTGRRALVTGSSQGIGYALAEGLAQAGAEVILNGRDPAKLAAAAESLKGQGLSAHALAFD 67
Query: 64 VVCHVANTDE----------------------RQKLFEHCSEVVWDKIFDVNLKSSFLLT 101
V H A R L + ++ ++++ N+ S F +
Sbjct: 68 VTDHDAVRAAIDAFEAEIGPIDILVNNAGMQFRTPLEDFPAD-AFERLLRTNISSVFYVG 126
Query: 102 QEVLPYMRKKKGGSIVYVSSI 122
Q V +M + G I+ ++S+
Sbjct: 127 QAVARHMIARGAGKIINIASV 147
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 63.4 bits (155), Expect = 9e-13
Identities = 37/144 (25%), Positives = 63/144 (43%), Gaps = 40/144 (27%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRK-------------------ESNVNKAV 50
KVA++T ++ GIG A A++L+ G V +SR +++V AV
Sbjct: 5 KVALVTGASSGIGRATAEKLARAGYRVFGTSRNPARAAPIPGVELLELDVTDDASVQAAV 64
Query: 51 ET-LQKEGHQNV------SGVVCHVANT--DERQKLFEHCSEVVWDKIFDVNLKSSFLLT 101
+ + + G +V G+ + + Q L FD N+ +T
Sbjct: 65 DEVIARAGRIDVLVNNAGVGLAGAAEESSIAQAQAL------------FDTNVFGILRMT 112
Query: 102 QEVLPYMRKKKGGSIVYVSSIGGF 125
+ VLP+MR + G I+ +SS+ GF
Sbjct: 113 RAVLPHMRAQGSGRIINISSVLGF 136
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 63.0 bits (154), Expect = 1e-12
Identities = 42/159 (26%), Positives = 59/159 (37%), Gaps = 41/159 (25%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GKVAVIT +G A+AK L+ GA V I R + V ++ G + V
Sbjct: 8 LKGKVAVITGGGGVLGGAMAKELARAGAKVAILDRNQEKAEAVVAEIKAAGGE-ALAVKA 66
Query: 67 HV---------------------------------ANTDERQKL-------FEHCSEVVW 86
V A TD F E +
Sbjct: 67 DVLDKESLEQARQQILEDFGPCDILINGAGGNHPKATTDNEFHELIEPTKTFFDLDEEGF 126
Query: 87 DKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
+ +FD+NL + L TQ M +KGG+I+ +SS+ F
Sbjct: 127 EFVFDLNLLGTLLPTQVFAKDMVGRKGGNIINISSMNAF 165
>gnl|CDD|235608 PRK05786, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 238
Score = 62.5 bits (152), Expect = 1e-12
Identities = 39/142 (27%), Positives = 67/142 (47%), Gaps = 27/142 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL GK I +EG+G+A+A EGA V I+SR E+ + + +TL K G N+ VV
Sbjct: 2 RLKGKKVAIIGVSEGLGYAVAYFALKEGAQVCINSRNENKLKRMKKTLSKYG--NIHYVV 59
Query: 66 CHVANTDERQKLFEHCSEVV-----------------------WDKIFDVNLKSSFLLTQ 102
V++T+ + + E ++V+ +++ ++K
Sbjct: 60 GDVSSTESARNVIEKAAKVLNAIDGLVVTVGGYVEDTVEEFSGLEEMLTNHIKIPLYAVN 119
Query: 103 EVLPYMRKKKGGSIVYVSSIGG 124
L +++ +G SIV VSS+ G
Sbjct: 120 ASLRFLK--EGSSIVLVSSMSG 139
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 62.5 bits (152), Expect = 1e-12
Identities = 38/148 (25%), Positives = 62/148 (41%), Gaps = 29/148 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
R KVA++T + GIG A A+ L+ EGASVV++ + + + +G + V
Sbjct: 3 RFDDKVAIVTGAAGGIGQAYAEALAREGASVVVADINAEGAERVAKQIVADGGTAI-AVQ 61
Query: 66 CHVANTDERQKLFEHCSE-------------------------VVWD---KIFDVNLKSS 97
V++ D + + + V WD K VNL +
Sbjct: 62 VDVSDPDSAKAMADATVSAFGGIDYLVNNAAIYGGMKLDLLITVPWDYYKKFMSVNLDGA 121
Query: 98 FLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
+ T+ V +M K+ GG+IV SS +
Sbjct: 122 LVCTRAVYKHMAKRGGGAIVNQSSTAAW 149
>gnl|CDD|187624 cd05366, meso-BDH-like_SDR_c, meso-2,3-butanediol
dehydrogenase-like, classical (c) SDRs. 2,3-butanediol
dehydrogenases (BDHs) catalyze the NAD+ dependent
conversion of 2,3-butanediol to acetonin; BDHs are
classified into types according to their
stereospecificity as to substrates and products.
Included in this subgroup are Klebsiella pneumonia
meso-BDH which catalyzes meso-2,3-butanediol to
D(-)-acetonin, and Corynebacterium glutamicum L-BDH
which catalyzes lX+)-2,3-butanediol to L(+)-acetonin.
This subgroup is comprised of classical SDRs with the
characteristic catalytic triad and NAD-binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 62.8 bits (153), Expect = 1e-12
Identities = 35/142 (24%), Positives = 56/142 (39%), Gaps = 26/142 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
KVA+IT + +GIG AIA+RL+A+G ++V++ K+ E N V V
Sbjct: 2 SKVAIITGAAQGIGRAIAERLAADGFNIVLADLNLEEAAKSTIQEISEAGYNAVAVGADV 61
Query: 69 ANTDERQKLFE----------------------HCSEV---VWDKIFDVNLKSSFLLTQE 103
+ D+ + L + + K++ VN+ Q
Sbjct: 62 TDKDDVEALIDQAVEKFGSFDVMVNNAGIAPITPLLTITEEDLKKVYAVNVFGVLFGIQA 121
Query: 104 VLPYMRKKK-GGSIVYVSSIGG 124
+K GG I+ SSI G
Sbjct: 122 AARQFKKLGHGGKIINASSIAG 143
>gnl|CDD|213929 TIGR04316, dhbA_paeA, 2,3-dihydro-2,3-dihydroxybenzoate
dehydrogenase. Members of this family are
2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase (EC
1.3.1.28), the third enzyme in the biosynthesis of
2,3-dihydroxybenzoic acid (DHB) from chorismate. The
first two enzymes are isochorismate synthase (EC
5.4.4.2) and isochorismatase (EC 3.3.2.1). Synthesis is
often followed by adenylation by the enzyme DHBA-AMP
ligase (EC 2.7.7.58) to activate (DHB) for a
non-ribosomal peptide synthetase.
Length = 250
Score = 62.3 bits (152), Expect = 1e-12
Identities = 30/135 (22%), Positives = 57/135 (42%), Gaps = 26/135 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANT 71
++T + +GIG+A+A+ L+ GA V R + + V L++ G+ + VA++
Sbjct: 1 VLVTGAAQGIGYAVARALAEAGARVAAVDRNFEQLLELVADLRRYGYP-FATYKLDVADS 59
Query: 72 DE----------RQKLFEH---CSEVV------------WDKIFDVNLKSSFLLTQEVLP 106
+ + ++ W F VN F ++Q V P
Sbjct: 60 AAVDEVVQRLEREYGPIDVLVNVAGILRLGAIDSLSDEDWQATFAVNTFGVFNVSQAVSP 119
Query: 107 YMRKKKGGSIVYVSS 121
M++++ G+IV V S
Sbjct: 120 RMKRRRSGAIVTVGS 134
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 62.4 bits (152), Expect = 2e-12
Identities = 34/146 (23%), Positives = 66/146 (45%), Gaps = 27/146 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GKVA++T G+G A L+ GA ++I++ +N ++ ++KEG + V+ V
Sbjct: 12 SLDGKVAIVTGGNTGLGQGYAVALAKAGADIIITTHG-TNWDETRRLIEKEG-RKVTFVQ 69
Query: 66 CHVANTDERQKLFEHC-------------------------SEVVWDKIFDVNLKSSFLL 100
+ + +K+ + + W+ + D+NL S + L
Sbjct: 70 VDLTKPESAEKVVKEALEEFGKIDILVNNAGTIRRAPLLEYKDEDWNAVMDINLNSVYHL 129
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGGFK 126
+Q V M K+ G I+ ++S+ F+
Sbjct: 130 SQAVAKVMAKQGSGKIINIASMLSFQ 155
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 62.1 bits (151), Expect = 3e-12
Identities = 37/145 (25%), Positives = 64/145 (44%), Gaps = 27/145 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL +VAV+T + G+G AIA + GA V+I++R ES +++ E ++ G + V
Sbjct: 7 RLDDQVAVVTGAGRGLGAAIALAFAEAGADVLIAARTESQLDEVAEQIRAAGRRAHV-VA 65
Query: 66 CHVANTDERQKLFEHCSE------VVWDKI-------------------FDVNLKSSFLL 100
+A+ + L E +V + + F N+ ++ L
Sbjct: 66 ADLAHPEATAGLAGQAVEAFGRLDIVVNNVGGTMPNPLLSTSTKDLADAFTFNVATAHAL 125
Query: 101 TQEVLPYM-RKKKGGSIVYVSSIGG 124
T +P M GGS++ +SS G
Sbjct: 126 TVAAVPLMLEHSGGGSVINISSTMG 150
>gnl|CDD|226476 COG3967, DltE, Short-chain dehydrogenase involved in D-alanine
esterification of lipoteichoic acid and wall teichoic
acid (D-alanine transfer protein) [Cell envelope
biogenesis, outer membrane].
Length = 245
Score = 61.7 bits (150), Expect = 3e-12
Identities = 36/147 (24%), Positives = 58/147 (39%), Gaps = 32/147 (21%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
+ G +IT GIG A+AKR G +V+I R E + +A K + + V
Sbjct: 2 KTTGNTILITGGASGIGLALAKRFLELGNTVIICGRNEERLAEA-----KAENPEIHTEV 56
Query: 66 CHVANTDERQKLFEHC---------------------------SEVVWDKIFDVNLKSSF 98
C VA+ D R++L E ++ NL +
Sbjct: 57 CDVADRDSRRELVEWLKKEYPNLNVLINNAGIQRNEDLTGAEDLLDDAEQEIATNLLAPI 116
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGF 125
LT +LP++ ++ +I+ VSS F
Sbjct: 117 RLTALLLPHLLRQPEATIINVSSGLAF 143
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 61.5 bits (150), Expect = 4e-12
Identities = 41/148 (27%), Positives = 58/148 (39%), Gaps = 34/148 (22%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
R GKV V+T + +GIG +A R +AEGA VV+ R E V + E
Sbjct: 3 NQRFAGKVVVVTGAAQGIGRGVALRAAAEGARVVLVDRSE-----LVHEVAAELRAAGGE 57
Query: 64 VVCHVANT---DERQKLFEHCSEV--------------VWDKIF--------DVNLKSSF 98
+ A+ Q E +W K F + ++ S
Sbjct: 58 ALALTADLETYAGAQAAMAAAVEAFGRIDVLINNVGGTIWAKPFEEYEEEQIEAEIRRSL 117
Query: 99 LLT----QEVLPYMRKKKGGSIVYVSSI 122
T + VLP+M + GG+IV VSSI
Sbjct: 118 FPTLWCCRAVLPHMLAQGGGAIVNVSSI 145
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 61.3 bits (149), Expect = 4e-12
Identities = 42/150 (28%), Positives = 64/150 (42%), Gaps = 31/150 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQ--KEGHQNVSGV 64
L KV V+T S GIG AIA RL+ EG+ VV++++K + ETL+ KE GV
Sbjct: 4 LKDKVVVVTGSGRGIGRAIAVRLAKEGSLVVVNAKK--RAEEMNETLKMVKENGGEGIGV 61
Query: 65 VCHVAN-------TDERQKLFEHCSEVV------------------WDKIFDVNLKSSFL 99
+ V+ + +V DK + KS
Sbjct: 62 LADVSTREGCETLAKATIDRYGVADILVNNAGLGLFSPFLNVDDKLIDKHISTDFKSVIY 121
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGGFKQFK 129
+QE+ MR +GG+IV ++S+ G +
Sbjct: 122 CSQELAKEMR--EGGAIVNIASVAGIRPAY 149
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 61.0 bits (148), Expect = 7e-12
Identities = 46/144 (31%), Positives = 66/144 (45%), Gaps = 31/144 (21%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
R GKVA+IT T GIG AIA+ EGA V + S N+A E L+++G V +
Sbjct: 4 RFKGKVALITGGTRGIGRAIAEAFLREGAKVAVLY--NSAENEAKE-LREKG---VFTIK 57
Query: 66 CHVANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLL 100
C V N D+ +K FE E ++K+ +NL +
Sbjct: 58 CDVGNRDQVKKSKEVVEKEFGRVDVLVNNAGIMYLMPFEEFDEEKYNKMIKINLNGAIYT 117
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
T E LP ++ K G+IV ++S G
Sbjct: 118 TYEFLPLLKLSKNGAIVNIASNAG 141
>gnl|CDD|187599 cd05340, Ycik_SDR_c, Escherichia coli K-12 YCIK-like, classical (c)
SDRs. Escherichia coli K-12 YCIK and related proteins
have a canonical classical SDR nucleotide-binding motif
and active site tetrad. They are predicted oxoacyl-(acyl
carrier protein/ACP) reductases. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 236
Score = 60.3 bits (146), Expect = 8e-12
Identities = 34/147 (23%), Positives = 65/147 (44%), Gaps = 30/147 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN------ 60
L ++ ++T +++GIG A + GA+V++ R E + + + + +EG +
Sbjct: 2 LNDRIILVTGASDGIGREAALTYARYGATVILLGRNEEKLRQVADHINEEGGRQPQWFIL 61
Query: 61 -----------------------VSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSS 97
+ GV+ + + L E +V W + VN+ ++
Sbjct: 62 DLLTCTSENCQQLAQRIAVNYPRLDGVLHNAGLLGDVCPLSEQNPQV-WQDVXQVNVNAT 120
Query: 98 FLLTQEVLPYMRKKKGGSIVYVSSIGG 124
F+LTQ +LP + K GS+V+ SS G
Sbjct: 121 FMLTQALLPLLLKSDAGSLVFTSSSVG 147
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 61.0 bits (149), Expect = 9e-12
Identities = 46/142 (32%), Positives = 64/142 (45%), Gaps = 27/142 (19%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVV---ISSRKES---NVNK------------ 48
L GKVA++T + GIG AIA+ L+ +GA VV + + E+ N+
Sbjct: 208 LAGKVALVTGAARGIGAAIAEVLARDGAHVVCLDVPAAGEALAAVANRVGGTALALDITA 267
Query: 49 --AVETLQ---KEGHQNVSGVVCHVAN-TDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQ 102
A + E H + VV H A T R K + E WD + VNL + +T+
Sbjct: 268 PDAPARIAEHLAERHGGLDIVV-HNAGIT--RDKTLANMDEARWDSVLAVNLLAPLRITE 324
Query: 103 EVLPYMRKKKGGSIVYVSSIGG 124
+L GG IV VSSI G
Sbjct: 325 ALLAAGALGDGGRIVGVSSISG 346
>gnl|CDD|187604 cd05346, SDR_c5, classical (c) SDR, subgroup 5. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 249
Score = 60.0 bits (146), Expect = 1e-11
Identities = 31/146 (21%), Positives = 53/146 (36%), Gaps = 36/146 (24%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
K +IT ++ GIG A A+R + GA ++++ R+ + + L E V
Sbjct: 1 KTVLITGASSGIGEATARRFAKAGAKLILTGRRAERLQE----LADELGAKFPVKV-LPL 55
Query: 70 NTDERQK---------LFE----------------------HCSEVVWDKIFDVNLKSSF 98
D + L E W+ + D N+K
Sbjct: 56 QLDVSDRESIEAALENLPEEFRDIDILVNNAGLALGLDPAQEADLEDWETMIDTNVKGLL 115
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGG 124
+T+ +LP M + G I+ + SI G
Sbjct: 116 NVTRLILPIMIARNQGHIINLGSIAG 141
>gnl|CDD|187664 cd09763, DHRS1-like_SDR_c, human dehydrogenase/reductase (SDR
family) member 1 (DHRS1) -like, classical (c) SDRs.
This subgroup includes human DHRS1 and related proteins.
These are members of the classical SDR family, with a
canonical Gly-rich NAD-binding motif and the typical
YXXXK active site motif. However, the rest of the
catalytic tetrad is not strongly conserved. DHRS1 mRNA
has been detected in many tissues, liver, heart,
skeletal muscle, kidney and pancreas; a longer
transcript is predominantly expressed in the liver , a
shorter one in the heart. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 265
Score = 60.2 bits (146), Expect = 1e-11
Identities = 40/152 (26%), Positives = 62/152 (40%), Gaps = 35/152 (23%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV-ETLQKEGHQNVSGVV 65
L GK+A++T ++ GIG IA +L GA+V I+ R E ++ G + + V
Sbjct: 1 LSGKIALVTGASRGIGRGIALQLGEAGATVYITGRTILPQLPGTAEEIEARGGKCIP-VR 59
Query: 66 CHVANTDERQKLFEHC---------------------------------SEVVWDKIFDV 92
C ++ DE + LFE +WD I +V
Sbjct: 60 CDHSDDDEVEALFERVAREQQGRLDILVNNAYAAVQLILVGVAKPFWEEPPTIWDDINNV 119
Query: 93 NLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
L++ + + P M K G IV +SS GG
Sbjct: 120 GLRAHYACSVYAAPLMVKAGKGLIVIISSTGG 151
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 59.7 bits (145), Expect = 1e-11
Identities = 38/150 (25%), Positives = 61/150 (40%), Gaps = 35/150 (23%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISS-------------------------- 40
L + +IT + G+G AIA RL+A+GA V++
Sbjct: 4 LDSRRVLITGGSGGLGRAIAVRLAADGADVIVLDIHPMRGRAEADAVAAGIEAAGGKALG 63
Query: 41 -----RKESNVNKAVETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLK 95
R + A++ +E + +V + F S WD + DVNL
Sbjct: 64 LAFDVRDFAATRAALDAGVEE-FGRLDILVNNAGIA--TDAAFAELSIEEWDDVIDVNLD 120
Query: 96 SSFLLTQEVL-PYMRKKKGGSIVYVSSIGG 124
F +TQ L P +R ++GG IV ++S+ G
Sbjct: 121 GFFNVTQAALPPMIRARRGGRIVNIASVAG 150
>gnl|CDD|187640 cd08935, mannonate_red_SDR_c, putative D-mannonate oxidoreductase,
classical (c) SDR. D-mannonate oxidoreductase catalyzes
the NAD-dependent interconversion of D-mannonate and
D-fructuronate. This subgroup includes Bacillus
subtitils UxuB/YjmF, a putative D-mannonate
oxidoreductase; the B. subtilis UxuB gene is part of a
putative ten-gene operon (the Yjm operon) involved in
hexuronate catabolism. Escherichia coli UxuB does not
belong to this subgroup. This subgroup has a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 271
Score = 59.8 bits (145), Expect = 2e-11
Identities = 44/157 (28%), Positives = 66/157 (42%), Gaps = 38/157 (24%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV---------------- 50
L KVAVIT T +G A+A+ L+ GA V R + +K
Sbjct: 3 LKNKVAVITGGTGVLGGAMARALAQAGAKVAALGRNQEKGDKVAKEITALGGRAIALAAD 62
Query: 51 ----ETLQKEGHQ------------NVSGVVCHVANTD------ERQKLFEHCSEVVWDK 88
+L++ + N +G A TD E ++ F E W+
Sbjct: 63 VLDRASLERAREEIVAQFGTVDILINGAGGNHPDATTDPEHYEPETEQNFFDLDEEGWEF 122
Query: 89 IFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
+FD+NL SFL +Q M ++KGGSI+ +SS+ F
Sbjct: 123 VFDLNLNGSFLPSQVFGKDMLEQKGGSIINISSMNAF 159
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 59.2 bits (144), Expect = 2e-11
Identities = 31/145 (21%), Positives = 55/145 (37%), Gaps = 30/145 (20%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH--QNVSG 63
L K ++T ++ GIG A+A+ L+A GA +++ R +E L
Sbjct: 2 DLKDKRVLLTGASGGIGQALAEALAAAGARLLLVGRNAE----KLEALAARLPYPGRHRW 57
Query: 64 VVCHVANTDERQK------------------------LFEHCSEVVWDKIFDVNLKSSFL 99
VV + + R+ L E +++ +NL +
Sbjct: 58 VVADLTSEAGREAVLARAREMGGINVLINNAGVNHFALLEDQDPEAIERLLALNLTAPMQ 117
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
LT+ +LP +R + +V V S G
Sbjct: 118 LTRALLPLLRAQPSAMVVNVGSTFG 142
>gnl|CDD|187642 cd08937, DHB_DH-like_SDR_c,
1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase (DHB DH)-like, classical (c) SDR. DHB DH
(aka 1,2-dihydroxycyclohexa-3,5-diene-1-carboxylate
dehydrogenase) catalyzes the NAD-dependent conversion of
1,2-dihydroxycyclohexa-3,4-diene carboxylate to a
catechol. This subgroup also contains Pseudomonas putida
F1 CmtB, 2,3-dihydroxy-2,3-dihydro-p-cumate
dehydrogenase, the second enzyme in the pathway for
catabolism of p-cumate catabolism. This subgroup shares
the glycine-rich NAD-binding motif of the classical SDRs
and shares the same catalytic triad; however, the
upstream Asn implicated in cofactor binding or catalysis
in other SDRs is generally substituted by a Ser. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 59.5 bits (144), Expect = 2e-11
Identities = 38/146 (26%), Positives = 58/146 (39%), Gaps = 34/146 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
R GKV V+T + +GIG +A+RL+ EGA V++ R E V + E
Sbjct: 1 RFEGKVVVVTGAAQGIGRGVAERLAGEGARVLLVDRSEL-----VHEVLAEILAAGDAAH 55
Query: 66 CHVANTDERQ-----------------------------KLFEHCSEVVWDKIFDVNLKS 96
H A+ + K +EH E + +L
Sbjct: 56 VHTADLETYAGAQGVVRAAVERFGRVDVLINNVGGTIWAKPYEHYEEEQIEAEIRRSLFP 115
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSI 122
+ + VLP+M +++ G IV VSSI
Sbjct: 116 TLWCCRAVLPHMLERQQGVIVNVSSI 141
>gnl|CDD|187596 cd05337, BKR_1_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP] reductase (BKR), subgroup 1, classical (c) SDR.
This subgroup includes Escherichia coli CFT073 FabG. The
Escherichai coli K12 BKR, FabG, belongs to a different
subgroup. BKR catalyzes the NADPH-dependent reduction of
ACP in the first reductive step of de novo fatty acid
synthesis (FAS). FAS consists of four elongation steps,
which are repeated to extend the fatty acid chain
through the addition of two-carbo units from malonyl
acyl-carrier protein (ACP): condensation, reduction,
dehydration, and a final reduction. Type II FAS, typical
of plants and many bacteria, maintains these activities
on discrete polypeptides, while type I FAS utilizes one
or two multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) NAD(P)(H) binding
region and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H) binding
pattern: TGxxxGxG in classical SDRs. Extended SDRs have
additional elements in the C-terminal region, and
typically have a TGXXGXXG cofactor binding motif.
Complex (multidomain) SDRs such as ketoreductase domains
of fatty acid synthase have a GGXGXXG NAD(P) binding
motif and an altered active site motif (YXXXN). Fungal
type type ketoacyl reductases have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P) binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr-151 and
Lys-155, and well as Asn-111 (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 255
Score = 59.0 bits (143), Expect = 3e-11
Identities = 32/146 (21%), Positives = 58/146 (39%), Gaps = 35/146 (23%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKES-NVNKAVETLQKEGHQNVSGVVCHVA 69
VA++T ++ GIG AIA L+A G + I+ + + V + G + +
Sbjct: 3 VAIVTGASRGIGRAIATELAARGFDIAINDLPDDDQATEVVAEVLAAG-RRAIYFQADIG 61
Query: 70 NTDERQKLFE---------HC------------------SEVVWDKIFDVNLKSSFLLTQ 102
+ + L + C +E +D++ +NL+ F LTQ
Sbjct: 62 ELSDHEALLDQAWEDFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIAINLRGPFFLTQ 121
Query: 103 EVLPYMRKKKG------GSIVYVSSI 122
V M ++ SI++V+SI
Sbjct: 122 AVARRMVEQPDRFDGPHRSIIFVTSI 147
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 58.4 bits (142), Expect = 6e-11
Identities = 36/149 (24%), Positives = 56/149 (37%), Gaps = 43/149 (28%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
K +IT + G G A+A+ A G VV + R E+ A + + V
Sbjct: 4 MKTWLITGVSSGFGRALAQAALAAGHRVVGTVRSEA----ARADFEALHPDRALARLLDV 59
Query: 69 ANTDERQKLFEHCSEVVWD--------------------------------KIFDVNLKS 96
TD F+ VV D + F+VN+
Sbjct: 60 --TD-----FDAIDAVVADAEATFGPIDVLVNNAGYGHEGAIEESPLAEMRRQFEVNVFG 112
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
+ +T+ VLP MR ++ G IV ++S+GG
Sbjct: 113 AVAMTKAVLPGMRARRRGHIVNITSMGGL 141
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 57.8 bits (140), Expect = 7e-11
Identities = 38/151 (25%), Positives = 57/151 (37%), Gaps = 38/151 (25%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN 60
M A GK ++T ++ GIG A A L+ GA VV ++R + A++ L E
Sbjct: 1 MNMAFDFSGKSVLVTGASSGIGRACAVALAQRGARVVAAARNAA----ALDRLAGE---- 52
Query: 61 VSGVVCHVANTD------ERQKLFEH--------C------------SEVVWDKIFDVNL 94
C D R L C + +D++ VN
Sbjct: 53 ---TGCEPLRLDVGDDAAIRAALAAAGAFDGLVNCAGIASLESALDMTAEGFDRVMAVNA 109
Query: 95 KSSFLLTQEVLPYM-RKKKGGSIVYVSSIGG 124
+ + L+ + V M +GGSIV VSS
Sbjct: 110 RGAALVARHVARAMIAAGRGGSIVNVSSQAA 140
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 57.6 bits (139), Expect = 8e-11
Identities = 39/143 (27%), Positives = 69/143 (48%), Gaps = 29/143 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L G+ A++T ++ GIG IA+ L A+GA V + + V K +E L E + V
Sbjct: 4 LSGRKALVTGASGGIGEEIARLLHAQGAIVGLHG---TRVEK-LEALAAELGERVKIFPA 59
Query: 67 HVANTDE-------------------------RQKLFEHCSEVVWDKIFDVNLKSSFLLT 101
++++ DE + LF S+ WD + +VNL ++F LT
Sbjct: 60 NLSDRDEVKALGQKAEADLEGVDILVNNAGITKDGLFVRMSDEDWDSVLEVNLTATFRLT 119
Query: 102 QEVLPYMRKKKGGSIVYVSSIGG 124
+E+ M +++ G I+ ++S+ G
Sbjct: 120 RELTHPMMRRRYGRIINITSVVG 142
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 57.7 bits (140), Expect = 8e-11
Identities = 29/140 (20%), Positives = 55/140 (39%), Gaps = 26/140 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVS---- 62
L GKV V++ G+G +A R + GA VV+++R +++ + G + ++
Sbjct: 3 LKGKVVVVSGVGPGLGRTLAVRAARAGADVVLAARTAERLDEVAAEIDDLGRRALAVPTD 62
Query: 63 ---------------------GVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLT 101
+ + A K W + ++N+ + LT
Sbjct: 63 ITDEDQCANLVALALERFGRVDALVNNAFRVPSMKPLADADFAHWRAVIELNVLGTLRLT 122
Query: 102 QEVLPYMRKKKGGSIVYVSS 121
Q P + + GGSIV ++S
Sbjct: 123 QAFTPAL-AESGGSIVMINS 141
>gnl|CDD|187609 cd05351, XR_like_SDR_c, xylulose reductase-like, classical (c)
SDRs. Members of this subgroup include proteins
identified as L-xylulose reductase (XR) and carbonyl
reductase; they are members of the SDR family. XR,
catalyzes the NADP-dependent reduction of L-xyulose and
other sugars. Tetrameric mouse carbonyl reductase is
involved in the metabolism of biogenic and xenobiotic
carbonyl compounds. This subgroup also includes
tetrameric chicken liver D-erythrulose reductase, which
catalyzes the reduction of D-erythrulose to D-threitol.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser).
Length = 244
Score = 57.5 bits (139), Expect = 8e-11
Identities = 39/133 (29%), Positives = 63/133 (47%), Gaps = 17/133 (12%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV------ETLQ------ 54
GK A++T + +GIG A K L+ GA VV SR +++++ V E +
Sbjct: 5 FAGKRALVTGAGKGIGRATVKALAKAGARVVAVSRTQADLDSLVRECPGIEPVCVDLSDW 64
Query: 55 ---KEGHQNVSGVVCHVANTD-ERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRK 110
+E +V V V N + F ++ +D+ FDVN+++ ++Q V M
Sbjct: 65 DATEEALGSVGPVDLLVNNAAVAILQPFLEVTKEAFDRSFDVNVRAVIHVSQIVARGMIA 124
Query: 111 KK-GGSIVYVSSI 122
+ GSIV VSS
Sbjct: 125 RGVPGSIVNVSSQ 137
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 57.7 bits (140), Expect = 1e-10
Identities = 35/152 (23%), Positives = 58/152 (38%), Gaps = 36/152 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L KV VIT +G+G A+A+ L+ +GA + + + + +AV G + V G
Sbjct: 2 DLKDKVIVITGGAQGLGRAMAEYLAQKGAKLALIDLNQEKLEEAVAECGALGTE-VRGYA 60
Query: 66 CHVANTDERQKLFEHCSE---------------------------VV-------WDKIFD 91
+V + ++ + F +E V + + D
Sbjct: 61 ANVTDEEDVEATFAQIAEDFGQLNGLINNAGILRDGLLVKAKDGKVTSKMSLEQFQSVID 120
Query: 92 VNLKSSFLLTQEVLPYM-RKKKGGSIVYVSSI 122
VNL FL +E M G I+ +SSI
Sbjct: 121 VNLTGVFLCGREAAAKMIESGSKGVIINISSI 152
>gnl|CDD|181668 PRK09135, PRK09135, pteridine reductase; Provisional.
Length = 249
Score = 57.2 bits (139), Expect = 1e-10
Identities = 41/153 (26%), Positives = 58/153 (37%), Gaps = 39/153 (25%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVI---SSRKESNVNKAVETLQKE-GHQNVSGV 64
KVA+IT IG AIA+ L A G V I S E+ + L E
Sbjct: 6 AKVALITGGARRIGAAIARTLHAAGYRVAIHYHRSAAEA------DALAAELNALRPGSA 59
Query: 65 VCHVA---NTDERQKLFEHC-------------------------SEVVWDKIFDVNLKS 96
A + D +L C +E WD +F NLK+
Sbjct: 60 AALQADLLDPDALPELVAACVAAFGRLDALVNNASSFYPTPLGSITEAQWDDLFASNLKA 119
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGGFKQFK 129
F L+Q P +RK++ G+IV ++ I + K
Sbjct: 120 PFFLSQAAAPQLRKQR-GAIVNITDIHAERPLK 151
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 57.4 bits (139), Expect = 1e-10
Identities = 37/142 (26%), Positives = 60/142 (42%), Gaps = 27/142 (19%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
KVA++T + +GIGFAIAKRL +G V I E A + L K+G + ++ V V
Sbjct: 2 SKVALVTGAGQGIGFAIAKRLVEDGFKVAIVDYNEETAQAAADKLSKDGGKAIA-VKADV 60
Query: 69 ANTDE--------RQKL-----------------FEHCSEVVWDKIFDVNLKSSFLLTQE 103
++ D+ E +E +DK++++N+ Q
Sbjct: 61 SDRDQVFAAVRQVVDTFGDLNVVVNNAGVAPTTPIETITEEQFDKVYNINVGGVIWGIQA 120
Query: 104 VLPYMRK-KKGGSIVYVSSIGG 124
+K GG I+ +S G
Sbjct: 121 AQEAFKKLGHGGKIINATSQAG 142
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 57.7 bits (140), Expect = 1e-10
Identities = 37/145 (25%), Positives = 64/145 (44%), Gaps = 28/145 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
LVGKV +IT ++ GIG A A +++ GA+V + +R +++ V ++ +G
Sbjct: 368 PLVGKVVLITGASSGIGRATAIKVAEAGATVFLVARNGEALDELVAEIRAKGGT-AHAYT 426
Query: 66 CHVANTDERQKL-------FEHCSEVV--------------WDKIFD------VNLKSSF 98
C + ++ H +V D+ D VN +
Sbjct: 427 CDLTDSAAVDHTVKDILAEHGHVDYLVNNAGRSIRRSVENSTDRFHDYERTMAVNYFGAV 486
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIG 123
L +LP+MR+++ G +V VSSIG
Sbjct: 487 RLILGLLPHMRERRFGHVVNVSSIG 511
>gnl|CDD|187618 cd05360, SDR_c3, classical (c) SDR, subgroup 3. These proteins are
members of the classical SDR family, with a canonical
active site triad (and also active site Asn) and a
typical Gly-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 233
Score = 56.6 bits (137), Expect = 2e-10
Identities = 34/141 (24%), Positives = 66/141 (46%), Gaps = 26/141 (18%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVAN 70
V VIT ++ GIG A A + GA VV+++R +++ +++ G + ++ VV VA+
Sbjct: 2 VVVITGASSGIGRATALAFAERGAKVVLAARSAEALHELAREVRELGGEAIA-VVADVAD 60
Query: 71 TDERQKLFEHCSEV-----VW--------------------DKIFDVNLKSSFLLTQEVL 105
+ ++ + E W ++FDVN T L
Sbjct: 61 AAQVERAADTAVERFGRIDTWVNNAGVAVFGRFEDVTPEEFRRVFDVNYLGHVYGTLAAL 120
Query: 106 PYMRKKKGGSIVYVSSIGGFK 126
P++R++ GG+++ V S+ G++
Sbjct: 121 PHLRRRGGGALINVGSLLGYR 141
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 56.3 bits (136), Expect = 3e-10
Identities = 34/143 (23%), Positives = 58/143 (40%), Gaps = 27/143 (18%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV--------------------- 50
A IT + G+G AIA+R++ +GA V ++ ++ A
Sbjct: 2 AFITGAAGGLGRAIARRMAEQGAKVFLTDINDAAGLDAFAAEINAAHGEGVAFAAVQDVT 61
Query: 51 -----ETLQKEGHQNVSGVVCHVANTD-ERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEV 104
+ L + + G+ V N E W ++ +N++S FL +
Sbjct: 62 DEAQWQALLAQAADAMGGLSVLVNNAGVGSFGAIEQIELDEWRRVMAINVESIFLGCKHA 121
Query: 105 LPYMRKKKGGSIVYVSSIGGFKQ 127
LPY+R + SIV +SS+ FK
Sbjct: 122 LPYLRASQPASIVNISSVAAFKA 144
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 56.2 bits (135), Expect = 3e-10
Identities = 48/146 (32%), Positives = 69/146 (47%), Gaps = 33/146 (22%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVIS------------SRKESN--------- 45
L GKVA++T ++ GIG AIA RL+ +GA V I ESN
Sbjct: 4 LDGKVALVTGASRGIGRAIAMRLANDGALVAIHYGRNKQAADETIREIESNGGKAFLIEA 63
Query: 46 -------VNKAVETLQKEGHQNV--SGVVCHVANTD-ERQKLFEHCSEVVWDKIFDVNLK 95
V K VE L+ E V S + V N Q E+ +E ++D+I VN+K
Sbjct: 64 DLNSIDGVKKLVEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIMAVNIK 123
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSS 121
+ F L Q+ LP +R + G ++ +SS
Sbjct: 124 APFFLIQQTLPLLRAE--GRVINISS 147
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 55.9 bits (135), Expect = 3e-10
Identities = 32/141 (22%), Positives = 67/141 (47%), Gaps = 29/141 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKEGHQNVSGVV 65
L KVA++T ++ GIG AIA+RL+A+G +V ++ + + ++ V ++ G + ++ V
Sbjct: 3 LSNKVAIVTGASRGIGAAIARRLAADGFAVAVNYAGSAAAADELVAEIEAAGGRAIA-VQ 61
Query: 66 CHVANTDERQKLFEHCSEV-------------------------VWDKIFDVNLKSSFLL 100
VA+ +LF+ +D+ NL+ +F++
Sbjct: 62 ADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATNLRGAFVV 121
Query: 101 TQEVLPYMRKKKGGSIVYVSS 121
+E ++ +GG I+ +S+
Sbjct: 122 LREAARHLG--QGGRIINLST 140
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 56.1 bits (136), Expect = 3e-10
Identities = 38/144 (26%), Positives = 60/144 (41%), Gaps = 35/144 (24%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L G+V ++T T GIG IA+ A GA+VV+ R+ V+ E H
Sbjct: 4 LTGRVVLVTGGTRGIGAGIARAFLAAGATVVVCGRRAPE---TVDGRPAEFHA------A 54
Query: 67 HVANTDERQKLFEHCSE-------VV------------------WDKIFDVNLKSSFLLT 101
V + D+ L + E +V +KI ++NL + L+
Sbjct: 55 DVRDPDQVAALVDAIVERHGRLDVLVNNAGGSPYALAAEASPRFHEKIVELNLLAPLLVA 114
Query: 102 QEVLPYMRKKK-GGSIVYVSSIGG 124
Q M+++ GGSIV + S+ G
Sbjct: 115 QAANAVMQQQPGGGSIVNIGSVSG 138
>gnl|CDD|188170 TIGR01832, kduD, 2-deoxy-D-gluconate 3-dehydrogenase. This model
describes 2-deoxy-D-gluconate 3-dehydrogenase (also
called 2-keto-3-deoxygluconate oxidoreductase), a member
of the family of short-chain-alcohol dehydrogenases
(pfam00106). This protein has been characterized in
Erwinia chrysanthemi as an enzyme of pectin degradation
[Energy metabolism, Biosynthesis and degradation of
polysaccharides].
Length = 248
Score = 55.9 bits (135), Expect = 4e-10
Identities = 44/144 (30%), Positives = 64/144 (44%), Gaps = 25/144 (17%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKE-SNVNKAVETL------------ 53
L GKVA++T + G+G IA L+ GA +V + R E S + VE L
Sbjct: 3 LEGKVALVTGANTGLGQGIAVGLAEAGADIVGAGRSEPSETQQQVEALGRRFLSLTADLS 62
Query: 54 -QKEGHQNVSGVVCHVANTD---------ERQKLFEHCSEVVWDKIFDVNLKSSFLLTQE 103
+ V V + D R E SE WD + +VNLKS F LTQ
Sbjct: 63 DIEAIKALVDSAVEEFGHIDILVNNAGIIRRADAEEF-SEKDWDDVMNVNLKSVFFLTQA 121
Query: 104 VLPYMRKK-KGGSIVYVSSIGGFK 126
+ K+ +GG I+ ++S+ F+
Sbjct: 122 AAKHFLKQGRGGKIINIASMLSFQ 145
>gnl|CDD|236056 PRK07576, PRK07576, short chain dehydrogenase; Provisional.
Length = 264
Score = 55.7 bits (135), Expect = 5e-10
Identities = 20/57 (35%), Positives = 29/57 (50%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
M GK V+ T GI IA+ + GA+V ++SR + V+ AV LQ+ G
Sbjct: 1 MTTMFDFAGKNVVVVGGTSGINLGIAQAFARAGANVAVASRSQEKVDAAVAQLQQAG 57
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 56.0 bits (135), Expect = 7e-10
Identities = 39/153 (25%), Positives = 58/153 (37%), Gaps = 31/153 (20%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNK-AVETLQKEGHQ 59
M K L +VA +T GIG A+RL+AEGA VV++ A E + G
Sbjct: 406 MPKEKTLARRVAFVTGGAGGIGRETARRLAAEGAHVVLADLNLEAAEAVAAEINGQFGAG 465
Query: 60 NVSGVVCHVANTDERQ---------------------------KLFEHCSEVVWDKIFDV 92
+ V TDE+ FE + W D+
Sbjct: 466 RAVALKMDV--TDEQAVKAAFADVALAYGGVDIVVNNAGIATSSPFEETTLQEWQLNLDI 523
Query: 93 NLKSSFLLTQEVLPYMRKKK-GGSIVYVSSIGG 124
FL+ +E MR++ GG+IV+++S
Sbjct: 524 LATGYFLVAREAFRQMREQGLGGNIVFIASKNA 556
>gnl|CDD|187606 cd05348, BphB-like_SDR_c,
cis-biphenyl-2,3-dihydrodiol-2,3-dehydrogenase
(BphB)-like, classical (c) SDRs.
cis-biphenyl-2,3-dihydrodiol-2,3-dehydrogenase (BphB) is
a classical SDR, it is of particular importance for its
role in the degradation of biphenyl/polychlorinated
biphenyls(PCBs); PCBs are a significant source of
environmental contamination. This subgroup also includes
Pseudomonas putida F1
cis-biphenyl-1,2-dihydrodiol-1,2-dehydrogenase (aka
cis-benzene glycol dehydrogenase, encoded by the bnzE
gene), which participates in benzene metabolism. In
addition it includes Pseudomonas sp. C18 putative
1,2-dihydroxy-1,2-dihydronaphthalene dehydrogenase (aka
dibenzothiophene dihydrodiol dehydrogenase, encoded by
the doxE gene) which participates in an upper
naphthalene catabolic pathway. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 55.1 bits (133), Expect = 7e-10
Identities = 37/150 (24%), Positives = 60/150 (40%), Gaps = 35/150 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L G+VA+IT G+G A+ +R AEGA V + R V + L+ + V GV
Sbjct: 1 WLKGEVALITGGGSGLGRALVERFVAEGAKVAVLDRSAEKVAE----LRADFGDAVVGVE 56
Query: 66 CHVANTDERQKLFEHCSEV------------VWD------------------KIFDVNLK 95
V + + ++ C E +WD ++F +N+K
Sbjct: 57 GDVRSLADNERAVARCVERFGKLDCFIGNAGIWDYSTSLVDIPEEKLDEAFDELFHINVK 116
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L + LP + GS+++ S GF
Sbjct: 117 GYILGAKAALPAL-YATEGSVIFTVSNAGF 145
>gnl|CDD|187591 cd05330, cyclohexanol_reductase_SDR_c, cyclohexanol reductases,
including levodione reductase, classical (c) SDRs.
Cyloclohexanol reductases,including
(6R)-2,2,6-trimethyl-1,4-cyclohexanedione (levodione)
reductase of Corynebacterium aquaticum, catalyze the
reversible oxidoreduction of hydroxycyclohexanone
derivatives. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 55.2 bits (133), Expect = 8e-10
Identities = 39/144 (27%), Positives = 60/144 (41%), Gaps = 27/144 (18%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQ-----------KEGH 58
KV +IT G+G A A RL+ EGA + + E + A L K
Sbjct: 4 KVVLITGGGSGLGLATAVRLAKEGAKLSLVDLNEEGLEAAKAALLEIAPDAEVLLIKADV 63
Query: 59 QNVSGVVCHVANTDE----------------RQKLFEHCSEVVWDKIFDVNLKSSFLLTQ 102
+ + V +V T E +Q L E +DK+ +NL+ F +
Sbjct: 64 SDEAQVEAYVDATVEQFGRIDGFFNNAGIEGKQNLTEDFGADEFDKVVSINLRGVFYGLE 123
Query: 103 EVLPYMRKKKGGSIVYVSSIGGFK 126
+VL MR++ G IV +S+GG +
Sbjct: 124 KVLKVMREQGSGMIVNTASVGGIR 147
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A; Provisional.
Length = 256
Score = 55.0 bits (133), Expect = 9e-10
Identities = 39/148 (26%), Positives = 67/148 (45%), Gaps = 31/148 (20%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGVV 65
L GK +IT + IG A+ K + G V+ + + +N+ +E+L KE + +S V
Sbjct: 2 LKGKTILITGAGGLIGSALVKAILEAGGIVIAADIDKEALNELLESLGKEFKSKKLSLVE 61
Query: 66 CHVANTDERQKLFEHCSEVVWDKI------------------FDV-----------NLKS 96
+ + + ++ +E + KI FDV +L S
Sbjct: 62 LDITDQESLEEFLSKSAEK-YGKIDGAVNCAYPRNKDYGKKFFDVSLDDFNENLSLHLGS 120
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
SFL +Q+ Y +K+ GG++V +SSI G
Sbjct: 121 SFLFSQQFAKYFKKQGGGNLVNISSIYG 148
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 54.9 bits (132), Expect = 9e-10
Identities = 41/138 (29%), Positives = 61/138 (44%), Gaps = 28/138 (20%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISS---RKESNVNKAV--------------- 50
G+VA++T + GIG IA L AEG VV++ + S V KA+
Sbjct: 10 GRVALVTGAARGIGLGIAAWLIAEGWQVVLADLDRERGSKVAKALGENAWFIAMDVADEA 69
Query: 51 -------ETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQE 103
E L + G + +VC+ A D E S W+++ VNL LL +
Sbjct: 70 QVAAGVAEVLGQFGR--LDALVCNAAIADPHNTTLESLSLAHWNRVLAVNLTGPMLLAKH 127
Query: 104 VLPYMRKKKGGSIVYVSS 121
PY+R G+IV ++S
Sbjct: 128 CAPYLR-AHNGAIVNLAS 144
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 55.0 bits (132), Expect = 1e-09
Identities = 40/143 (27%), Positives = 60/143 (41%), Gaps = 27/143 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
G+ AVIT GIG A + GA VV+ + + +AV L+ EG +V GV+C V
Sbjct: 6 GRGAVITGGASGIGLATGTEFARRGARVVLGDVDKPGLRQAVNHLRAEGF-DVHGVMCDV 64
Query: 69 ANTDERQKL--------------FEHCSEVV-----------WDKIFDVNLKSSFLLTQE 103
+ +E L F + VV W + DV+L S +
Sbjct: 65 RHREEVTHLADEAFRLLGHVDVVFSNAGIVVGGPIVEMTHDDWRWVIDVDLWGSIHTVEA 124
Query: 104 VLP-YMRKKKGGSIVYVSSIGGF 125
LP + + GG +V+ +S G
Sbjct: 125 FLPRLLEQGTGGHVVFTASFAGL 147
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 54.4 bits (131), Expect = 1e-09
Identities = 42/159 (26%), Positives = 73/159 (45%), Gaps = 34/159 (21%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG--- 57
M ++ L GKVA++T ++ G+G A+ L+ GA VV++SR+ + + ++ EG
Sbjct: 1 MGRSINLEGKVALVTGASSGLGARFAQVLAQAGAKVVLASRRVERLKELRAEIEAEGGAA 60
Query: 58 ---------HQNVSGVVCH-----------VANT--DERQKLFEHCSEVVWDKIFDVNLK 95
+Q++ V H V N+ QKL + +D +FD N +
Sbjct: 61 HVVSLDVTDYQSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPA-DFDFVFDTNTR 119
Query: 96 SSFLLTQEVLPYM--------RKKKGGSIVYVSSIGGFK 126
+F + QEV M K GG I+ ++S+ G +
Sbjct: 120 GAFFVAQEVAKRMIARAKGAGNTKPGGRIINIASVAGLR 158
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 54.1 bits (131), Expect = 1e-09
Identities = 31/137 (22%), Positives = 57/137 (41%), Gaps = 31/137 (22%)
Query: 16 ASTEGIGFAIAKRLSAEGASVVISSR--------------------------KESNVNKA 49
A I +AIAK + EGA VV+++ + ++++
Sbjct: 3 ADDNSIAWAIAKAAAEEGAEVVLTTWPPALRMGAVDELAKELPADVIPLDVTSDEDIDEL 62
Query: 50 VETLQKEGHQNVSGVVCHVANTDERQKL--FEHCSEVVWDKIFDVNLKSSFLLTQEVLPY 107
E ++++G + +V +A + E +K + S + K D++ S L + P
Sbjct: 63 FEKVKEDGG-KIDFLVHSIAMSPEIRKGKPYLDTSREGFLKALDISAYSFISLAKAAKPL 121
Query: 108 MRKKKGGSIVYVSSIGG 124
M +GGSIV +S I
Sbjct: 122 M--NEGGSIVALSYIAA 136
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 54.7 bits (132), Expect = 1e-09
Identities = 44/148 (29%), Positives = 64/148 (43%), Gaps = 32/148 (21%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVET---LQKEGHQN-- 60
+L GKVA+IT GIG A+A + EGA + I E A ET ++KEG +
Sbjct: 43 KLKGKVALITGGDSGIGRAVAVLFAKEGADIAIVYLDEHE--DANETKQRVEKEGVKCLL 100
Query: 61 VSGVVCH-------VANT----------------DERQKLFEHCSEVVWDKIFDVNLKSS 97
+ G V V T Q+ E + DK F N+ S
Sbjct: 101 IPGDVSDEAFCKDAVEETVRELGRLDILVNNAAFQYPQQSLEDITAEQLDKTFKTNIYSY 160
Query: 98 FLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
F +T+ LP++ K+G +I+ SI G+
Sbjct: 161 FHMTKAALPHL--KQGSAIINTGSITGY 186
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 54.4 bits (131), Expect = 2e-09
Identities = 38/148 (25%), Positives = 60/148 (40%), Gaps = 29/148 (19%)
Query: 4 ATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
+ RL+GKVA++T GIG +I + GA V I ++ ++L G NV
Sbjct: 13 SQRLLGKVALVTGGATGIGESIVRLFHKHGAKVCIVDLQDDLGQNVCDSL--GGEPNVCF 70
Query: 64 VVCHVANTDERQKLFEH---------------------CSEV------VWDKIFDVNLKS 96
C V D+ + + C ++ ++K+FDVN+K
Sbjct: 71 FHCDVTVEDDVSRAVDFTVDKFGTLDIMVNNAGLTGPPCPDIRNVELSEFEKVFDVNVKG 130
Query: 97 SFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
FL + M K GSIV + S+
Sbjct: 131 VFLGMKHAARIMIPLKKGSIVSLCSVAS 158
>gnl|CDD|132368 TIGR03325, BphB_TodD, cis-2,3-dihydrobiphenyl-2,3-diol
dehydrogenase. Members of this family occur as the BphD
protein of biphenyl catabolism and as the TodD protein
of toluene catabolism. Members catalyze the second step
in each pathway and proved interchangeable when tested;
the first and fourth enzymes in each pathway confer
metabolic specificity. In the context of biphenyl
degradation, the enzyme acts as
cis-2,3-dihydrobiphenyl-2,3-diol dehydrogenase (EC
1.3.1.56), while in toluene degradation it acts as
cis-toluene dihydrodiol dehydrogenase.
Length = 262
Score = 54.0 bits (130), Expect = 2e-09
Identities = 34/148 (22%), Positives = 57/148 (38%), Gaps = 34/148 (22%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
RL G+V ++T G+G AI R AEGA V + + ++ L+ V GV
Sbjct: 2 RLKGEVVLVTGGASGLGRAIVDRFVAEGARVAVLDKSA----AGLQELEAAHGDAVVGVE 57
Query: 66 CHVANTDERQKLFEHCSEV------------VWD------------------KIFDVNLK 95
V + D+ ++ C +WD ++F +N+K
Sbjct: 58 GDVRSLDDHKEAVARCVAAFGKIDCLIPNAGIWDYSTALVDIPDDRIDEAFDEVFHINVK 117
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIG 123
L + LP + +G I +S+ G
Sbjct: 118 GYLLAVKAALPALVASRGSVIFTISNAG 145
>gnl|CDD|187638 cd08933, RDH_SDR_c, retinal dehydrogenase-like, classical (c) SDR.
These classical SDRs includes members identified as
retinol dehydrogenases, which convert retinol to
retinal, a property that overlaps with 17betaHSD
activity. 17beta-dehydrogenases are a group of isozymes
that catalyze activation and inactivation of estrogen
and androgens, and include members of the short-chain
dehydrogenases/reductase family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 261
Score = 54.1 bits (130), Expect = 2e-09
Identities = 36/153 (23%), Positives = 58/153 (37%), Gaps = 26/153 (16%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN 60
M R KV ++T + GIG I + GA VV +R E+ L + G +
Sbjct: 1 MASGLRYADKVVIVTGGSRGIGRGIVRAFVENGAKVVFCARGEAAGQALESELNRAGPGS 60
Query: 61 VSGVVCHVANTDERQKLF--------------------------EHCSEVVWDKIFDVNL 94
V C V ++ + L + S + + ++NL
Sbjct: 61 CKFVPCDVTKEEDIKTLISVTVERFGRIDCLVNNAGWHPPHQTTDETSAQEFRDLLNLNL 120
Query: 95 KSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFKQ 127
S FL ++ LP++RK +G I S +G Q
Sbjct: 121 ISYFLASKYALPHLRKSQGNIINLSSLVGSIGQ 153
>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
Length = 259
Score = 54.0 bits (130), Expect = 2e-09
Identities = 23/45 (51%), Positives = 34/45 (75%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
++TAS+ GIGF +A+ L +GA VVISSR E N+ KA++ L++ G
Sbjct: 4 LVTASSRGIGFNVARELLKKGARVVISSRNEENLEKALKELKEYG 48
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 53.9 bits (130), Expect = 2e-09
Identities = 37/145 (25%), Positives = 60/145 (41%), Gaps = 33/145 (22%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
K+A++T ++ G G L+ +G V+ + R N K L + N+ + V
Sbjct: 3 KKIAIVTGASSGFGLLTTLELAKKGYLVIATMR---NPEKQENLLSQATQLNLQQNI-KV 58
Query: 69 AN---TDERQ----KLFEH-------------------CSEVV---WDKIFDVNLKSSFL 99
TD+ +L E+ + K F+ N+ +
Sbjct: 59 QQLDVTDQNSIHNFQLVLKEIGRIDLLVNNAGYANGGFVEEIPVEEYRKQFETNVFGAIS 118
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
+TQ VLPYMRK+K G I+ +SSI G
Sbjct: 119 VTQAVLPYMRKQKSGKIINISSISG 143
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 53.9 bits (130), Expect = 2e-09
Identities = 35/142 (24%), Positives = 52/142 (36%), Gaps = 26/142 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETL-QKEGHQNVSGVV 65
L G+VAV+T + GIG A + L GASV I R E + A L +K +
Sbjct: 6 LEGRVAVVTGGSSGIGLATVELLLEAGASVAICGRDEERLASAEARLREKFPGARLLAAR 65
Query: 66 CHVANTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLL 100
C V + + F ++ W ++ S
Sbjct: 66 CDVLDEADVAAFAAAVEARFGGVDMLVNNAGQGRVSTFADTTDDAWRDELELKYFSVINP 125
Query: 101 TQEVLPYMRKKKGGSIVYVSSI 122
T+ LP +R SIV V+S+
Sbjct: 126 TRAFLPLLRASAAASIVCVNSL 147
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 53.4 bits (129), Expect = 3e-09
Identities = 37/144 (25%), Positives = 51/144 (35%), Gaps = 30/144 (20%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GKV IT GIG A A+ L+A GA V I E+ + L V G
Sbjct: 2 DLRGKVVAITGGARGIGLATARALAALGARVAIGDLDEALAKETAAEL-----GLVVGGP 56
Query: 66 CHVANTDE--------RQKL-----------------FEHCSEVVWDKIFDVNLKSSFLL 100
V + L F + V +I DVN+ L
Sbjct: 57 LDVTDPASFAAFLDAVEADLGPIDVLVNNAGVMPVGPFLDEPDAVTRRILDVNVYGVILG 116
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
++ P M + G +V V+S+ G
Sbjct: 117 SKLAAPRMVPRGRGHVVNVASLAG 140
>gnl|CDD|187608 cd05350, SDR_c6, classical (c) SDR, subgroup 6. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a fairly well conserved typical
Gly-rich NAD-binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 239
Score = 53.1 bits (128), Expect = 3e-09
Identities = 26/141 (18%), Positives = 52/141 (36%), Gaps = 28/141 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNK-AVETLQKEGHQNVSGVVCHVAN 70
+IT ++ GIG A+A+ + G +V +++R+ +++ E L V + V +
Sbjct: 1 VLITGASSGIGRALAREFAKAGYNVALAARRTDRLDELKAELLNPNPS--VEVEILDVTD 58
Query: 71 TDERQKLFEHCS-----------------------EVVWD--KIFDVNLKSSFLLTQEVL 105
+ Q + + D NL + + + L
Sbjct: 59 EERNQLVIAELEAELGGLDLVIINAGVGKGTSLGDLSFKAFRETIDTNLLGAAAILEAAL 118
Query: 106 PYMRKKKGGSIVYVSSIGGFK 126
P R K G +V +SS+ +
Sbjct: 119 PQFRAKGRGHLVLISSVAALR 139
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 53.4 bits (129), Expect = 4e-09
Identities = 38/148 (25%), Positives = 66/148 (44%), Gaps = 37/148 (25%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVIS-------SRKESNVNKAVETLQKEGHQ 59
L GK IT ++ GIG AIA R + +GA++VI+ + ++ A E ++ G Q
Sbjct: 4 LSGKTLFITGASRGIGLAIALRAARDGANIVIAAKTAEPHPKLPGTIHTAAEEIEAAGGQ 63
Query: 60 NVSGVVCHVANTDERQ------KLFEHCSE---VV------------------WDKIFDV 92
+ +V V DE Q K E V +D + +
Sbjct: 64 ALP-LVGDV--RDEDQVAAAVAKAVERFGGIDICVNNASAINLTGTEDTPMKRFDLMQQI 120
Query: 93 NLKSSFLLTQEVLPYMRKKKGGSIVYVS 120
N++ +FL++Q LP+++K + I+ +S
Sbjct: 121 NVRGTFLVSQACLPHLKKSENPHILTLS 148
>gnl|CDD|187615 cd05357, PR_SDR_c, pteridine reductase (PR), classical (c) SDRs.
Pteridine reductases (PRs), members of the SDR family,
catalyzes the NAD-dependent reduction of folic acid,
dihydrofolate and related compounds. In Leishmania,
pteridine reductase (PTR1) acts to circumvent the
anti-protozoan drugs that attack dihydrofolate reductase
activity. Proteins in this subgroup have an N-terminal
NAD-binding motif and a YxxxK active site motif, but
have an Asp instead of the usual upstream catalytic Ser.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 234
Score = 53.0 bits (128), Expect = 4e-09
Identities = 33/139 (23%), Positives = 56/139 (40%), Gaps = 25/139 (17%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVETLQKEGH--QNVSGVVC 66
VA++T + + IG AIA+ L+AEG VV+ + E+ + + L + V +
Sbjct: 1 AVALVTGAAKRIGRAIAEALAAEGYRVVVHYNRSEAEAQRLKDELNALRNSAVLVQADLS 60
Query: 67 HVAN----TDERQKLFEHC------------------SEVVWDKIFDVNLKSSFLLTQEV 104
A + F C SE W ++F +NLK+ +LL Q
Sbjct: 61 DFAACADLVAAAFRAFGRCDVLVNNASAFYPTPLGQGSEDAWAELFGINLKAPYLLIQAF 120
Query: 105 LPYMRKKKGGSIVYVSSIG 123
+ + GSI+ +
Sbjct: 121 ARRLAGSRNGSIINIIDAM 139
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 53.4 bits (129), Expect = 4e-09
Identities = 31/138 (22%), Positives = 56/138 (40%), Gaps = 26/138 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
+V VIT ++ G+G A A+ + GA VV+ +R E + ++ G + + VV V
Sbjct: 8 RQVVVITGASAGVGRATARAFARRGAKVVLLARGEEGLEALAAEIRAAGGEAL-AVVADV 66
Query: 69 ANTDERQK----------------------LFEHCSEVVWD---KIFDVNLKSSFLLTQE 103
A+ + Q +F +V + ++ +V T
Sbjct: 67 ADAEAVQAAADRAEEELGPIDTWVNNAMVTVFGPFEDVTPEEFRRVTEVTYLGVVHGTLA 126
Query: 104 VLPYMRKKKGGSIVYVSS 121
L +MR + G+I+ V S
Sbjct: 127 ALRHMRPRDRGAIIQVGS 144
>gnl|CDD|187586 cd05325, carb_red_sniffer_like_SDR_c, carbonyl reductase
sniffer-like, classical (c) SDRs. Sniffer is an
NADPH-dependent carbonyl reductase of the classical SDR
family. Studies in Drosophila melanogaster implicate
Sniffer in the prevention of neurodegeneration due to
aging and oxidative-stress. This subgroup also includes
Rhodococcus sp. AD45 IsoH, which is an NAD-dependent
1-hydroxy-2-glutathionyl-2-methyl-3-butene dehydrogenase
involved in isoprene metabolism, Aspergillus nidulans
StcE encoded by a gene which is part of a proposed
sterigmatocystin biosynthesis gene cluster, Bacillus
circulans SANK 72073 BtrF encoded by a gene found in the
butirosin biosynthesis gene cluster, and Aspergillus
parasiticus nor-1 involved in the biosynthesis of
aflatoxins. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 233
Score = 53.1 bits (128), Expect = 4e-09
Identities = 34/161 (21%), Positives = 55/161 (34%), Gaps = 31/161 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVI-SSRKESNV------------------------ 46
+IT ++ GIG + ++L A G + VI + R S
Sbjct: 1 VLITGASRGIGLELVRQLLARGNNTVIATCRDPSAATELAALGASHSRLHILELDVTDEI 60
Query: 47 NKAVETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
++ E + + V+ + A ++F VN+ LLTQ LP
Sbjct: 61 AESAEAVAERLGDAGLDVLINNAGILHSYGPASEVDSEDLLEVFQVNVLGPLLLTQAFLP 120
Query: 107 YMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPYQYKLSY 147
+ K I+ +SS G SI Y Y+ S
Sbjct: 121 LLLKGARAKIINISSRVG------SIGDNTSGGWYSYRASK 155
>gnl|CDD|169556 PRK08703, PRK08703, short chain dehydrogenase; Provisional.
Length = 239
Score = 52.6 bits (126), Expect = 5e-09
Identities = 28/151 (18%), Positives = 63/151 (41%), Gaps = 33/151 (21%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L K ++T +++G+G +AK +A GA+V++ +R + + K + + + GH +
Sbjct: 4 LSDKTILVTGASQGLGEQVAKAYAAAGATVILVARHQKKLEKVYDAIVEAGHPEPFAIRF 63
Query: 67 HVANTDERQKLFE------------------HCSEVV-------------WDKIFDVNLK 95
+ + +E++ FE HC+ W + +N
Sbjct: 64 DLMSAEEKE--FEQFAATIAEATQGKLDGIVHCAGYFYALSPLDFQTVAEWVNQYRINTV 121
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+ LT+ + P +++ S+++V G
Sbjct: 122 APMGLTRALFPLLKQSPDASVIFVGESHGET 152
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 52.6 bits (127), Expect = 6e-09
Identities = 38/150 (25%), Positives = 62/150 (41%), Gaps = 35/150 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L G+VA+IT GIG A+ +R AEGA V + R + + +L++ +V V
Sbjct: 3 WLHGQVALITGGGSGIGRALVERFLAEGARVAVLERSA----EKLASLRQRFGDHVLVVE 58
Query: 66 CHVANTDERQKLFEHCSEV------------VWD------------------KIFDVNLK 95
V + + Q+ + + +WD +IF+VN+K
Sbjct: 59 GDVTSYADNQRAVDQTVDAFGKLDCFVGNAGIWDYNTSLVDIPAETLDTAFDEIFNVNVK 118
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
L + LP K GGS+++ S F
Sbjct: 119 GYLLGAKAALP-ALKASGGSMIFTLSNSSF 147
>gnl|CDD|234422 TIGR03971, SDR_subfam_1, oxidoreductase, SDR family. Members of
this protein subfamily are putative oxidoreductases
belonging to the larger SDR family. Members of the
present subfamily may occur several to a genome and are
largely restricted to genomes that contain members of
families TIGR03962, TIGR03967, and TIGR03969. Many
members have been annotated by homology as carveol
dehydrogenases.
Length = 265
Score = 52.5 bits (126), Expect = 6e-09
Identities = 45/161 (27%), Positives = 68/161 (42%), Gaps = 40/161 (24%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVV---------------ISSRKESNVN-KAV 50
L GKVA IT + G G A A RL+AEGA ++ +++R++ + + V
Sbjct: 1 LEGKVAFITGAARGQGRAHAVRLAAEGADIIAIDLCAPLSDYPTYPLATREDLDETARLV 60
Query: 51 ETLQK-------------EGHQNVSG---------VVCHVANTDERQKLFEHCSEVVWDK 88
E L + E V VV A + +E SE WD
Sbjct: 61 EALGRKVLARKADVRDLAEVRAVVEDGVEQFGRLDVVVANAGVLSYGRSWE-LSEEQWDT 119
Query: 89 IFDVNLKSSFLLTQEVLPYM-RKKKGGSIVYVSSIGGFKQF 128
+ D+NL + + V+P+M + GGSI+ SS+ G K
Sbjct: 120 VLDINLTGVWRTCKAVVPHMIERGNGGSIIITSSVAGLKAL 160
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 52.5 bits (126), Expect = 6e-09
Identities = 35/144 (24%), Positives = 56/144 (38%), Gaps = 25/144 (17%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESN-VNKAVETLQKEGHQN--VS 62
L G+VA +T + GIG IA L+ GA V + + + + + E ++ G + ++
Sbjct: 5 DLDGQVAFVTGAGSGIGQRIAIGLAQAGADVALFDLRTDDGLAETAEHIEAAGRRAIQIA 64
Query: 63 GVVCHVANTDERQKLF----------------------EHCSEVVWDKIFDVNLKSSFLL 100
V A+ E E W + D+NL FL
Sbjct: 65 ADVTSKADLRAAVARTEAELGALTLAVNAAGIANANPAEEMEEEQWQTVMDINLTGVFLS 124
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGG 124
Q M + GGSIV ++S+ G
Sbjct: 125 CQAEARAMLENGGGSIVNIASMSG 148
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 52.5 bits (126), Expect = 6e-09
Identities = 29/144 (20%), Positives = 53/144 (36%), Gaps = 28/144 (19%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+ A++T + GIG A+A+R A G V+ + + + L G V C +
Sbjct: 3 RTALVTGAAGGIGQALARRFLAAGDRVLALDIDAAALAAFADAL---GDARFVPVACDLT 59
Query: 70 NTDE-RQKLFEHCSEV------------------------VWDKIFDVNLKSSFLLTQEV 104
+ L +E W +NL++++L + V
Sbjct: 60 DAASLAAALANAAAERGPVDVLVANAGAARAASLHDTTPASWRADNALNLEAAYLCVEAV 119
Query: 105 LPYMRKKKGGSIVYVSSIGGFKQF 128
L M K+ G++V + S+ G
Sbjct: 120 LEGMLKRSRGAVVNIGSVNGMAAL 143
>gnl|CDD|187592 cd05331, DH-DHB-DH_SDR_c, 2,3 dihydro-2,3 dihydrozybenzoate
dehydrogenases, classical (c) SDRs. 2,3 dihydro-2,3
dihydrozybenzoate dehydrogenase shares the
characteristics of the classical SDRs. This subgroup
includes Escherichai coli EntA which catalyzes the
NAD+-dependent oxidation of
2,3-dihydro-2,3-dihydroxybenzoate to
2,3-dihydroxybenzoate during biosynthesis of the
siderophore Enterobactin. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 52.5 bits (126), Expect = 6e-09
Identities = 35/135 (25%), Positives = 57/135 (42%), Gaps = 33/135 (24%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNK----------------AVET--- 52
++T + +GIG A+A+ L GA+V+ + + AV
Sbjct: 1 VIVTGAAQGIGRAVARHLLQAGATVIALDLPFVLLLEYGDPLRLTPLDVADAAAVREVCS 60
Query: 53 --LQKEGH----QNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
L + G N +GV+ TD S W++ F VN+ F L Q V P
Sbjct: 61 RLLAEHGPIDALVNCAGVL-RPGATDP-------LSTEDWEQTFAVNVTGVFNLLQAVAP 112
Query: 107 YMRKKKGGSIVYVSS 121
+M+ ++ G+IV V+S
Sbjct: 113 HMKDRRTGAIVTVAS 127
>gnl|CDD|187629 cd05371, HSD10-like_SDR_c, 17hydroxysteroid dehydrogenase type 10
(HSD10)-like, classical (c) SDRs. HSD10, also known as
amyloid-peptide-binding alcohol dehydrogenase (ABAD),
was previously identified as a L-3-hydroxyacyl-CoA
dehydrogenase, HADH2. In fatty acid metabolism, HADH2
catalyzes the third step of beta-oxidation, the
conversion of a hydroxyl to a keto group in the
NAD-dependent oxidation of L-3-hydroxyacyl CoA. In
addition to alcohol dehydrogenase and HADH2 activites,
HSD10 has steroid dehydrogenase activity. Although the
mechanism is unclear, HSD10 is implicated in the
formation of amyloid beta-petide in the brain (which is
linked to the development of Alzheimer's disease).
Although HSD10 is normally concentrated in the
mitochondria, in the presence of amyloid beta-peptide it
translocates into the plasma membrane, where it's action
may generate cytotoxic aldehydes and may lower estrogen
levels through its use of 17-beta-estradiol as a
substrate. HSD10 is a member of the SRD family, but
differs from other SDRs by the presence of two
insertions of unknown function. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 252
Score = 51.5 bits (124), Expect = 1e-08
Identities = 35/151 (23%), Positives = 58/151 (38%), Gaps = 36/151 (23%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSR-----------------------KESN 45
G VAV+T G+G A +RL A+GA VVI E +
Sbjct: 2 GLVAVVTGGASGLGLATVERLLAQGAKVVILDLPNSPGETVAKLGDNCRFVPVDVTSEKD 61
Query: 46 VNKAVETLQKEGHQNVSGVV-----CHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLL 100
V A+ + + + VV A T ++ H E ++ ++ +VNL +F +
Sbjct: 62 VKAALALAKAKF-GRLDIVVNCAGIAVAAKTYNKKGQQPHSLE-LFQRVINVNLIGTFNV 119
Query: 101 TQEVLPYMRKKKG------GSIVYVSSIGGF 125
+ M K + G I+ +S+ F
Sbjct: 120 IRLAAGAMGKNEPDQGGERGVIINTASVAAF 150
>gnl|CDD|187631 cd05373, SDR_c10, classical (c) SDR, subgroup 10. This subgroup
resembles the classical SDRs, but has an incomplete
match to the canonical glycine rich NAD-binding motif
and lacks the typical active site tetrad (instead of the
critical active site Tyr, it has Phe, but contains the
nearby Lys). SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 238
Score = 50.8 bits (122), Expect = 2e-08
Identities = 34/147 (23%), Positives = 65/147 (44%), Gaps = 30/147 (20%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNK-AVETLQKEGHQNVSGVVCHVA 69
VA + + +G+G AIA+R +AEG SV +++R+E+ + V+ ++ G + V
Sbjct: 1 VAAVVGAGDGLGAAIARRFAAEGFSVALAARREAKLEALLVDIIRDAGGSAKA-VPTDAR 59
Query: 70 NTDERQKLFE--------------HCSEVVW-----------DKIFDVNLKSSFLLTQEV 104
+ DE LF+ + VW +K++++ FL +E
Sbjct: 60 DEDEVIALFDLIEEEIGPLEVLVYNAGANVWFPILETTPRVFEKVWEMAAFGGFLAAREA 119
Query: 105 LPYMRKKKGGSIVYV---SSIGGFKQF 128
M + G+I++ +S+ G F
Sbjct: 120 AKRMLARGRGTIIFTGATASLRGRAGF 146
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 51.2 bits (123), Expect = 2e-08
Identities = 23/73 (31%), Positives = 41/73 (56%), Gaps = 1/73 (1%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
GKVAVIT + G G A A+ +A G +V++ ++ +++AV L+ +G + V GV
Sbjct: 2 KDFAGKVAVITGAASGFGLAFARIGAALGMKLVLADVQQDALDRAVAELRAQGAE-VLGV 60
Query: 65 VCHVANTDERQKL 77
V++ + + L
Sbjct: 61 RTDVSDAAQVEAL 73
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 50.8 bits (122), Expect = 3e-08
Identities = 26/143 (18%), Positives = 44/143 (30%), Gaps = 27/143 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGVVCH 67
+VAV+ + +G + L+ EG V ++ + + E G G
Sbjct: 2 NQVAVVIGGGQTLGAFLCHGLAEEGYRVAVADINSEKAANVAQEINAEYGEGMAYGFGAD 61
Query: 68 VANTDERQKLFEHCSEVV-------------------------WDKIFDVNLKSSFLLTQ 102
+ L E+ +D+ VNL FL +
Sbjct: 62 ATSEQSVLALSRGVDEIFGRVDLLVYNAGIAKAAFITDFQLGDFDRSLQVNLVGYFLCAR 121
Query: 103 EVLPYM-RKKKGGSIVYVSSIGG 124
E M R G I+ ++S G
Sbjct: 122 EFSRLMIRDGIQGRIIQINSKSG 144
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 50.4 bits (121), Expect = 3e-08
Identities = 30/143 (20%), Positives = 53/143 (37%), Gaps = 27/143 (18%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L GK +IT +++GIG A A+ +AEG + + +R + L V V
Sbjct: 4 HLAGKRVLITGASKGIGAAAAEAFAAEGCHLHLVARDADALEALAADL--RAAHGV-DVA 60
Query: 66 CHVAN---TDERQKLFEHCSEV---------------------VWDKIFDVNLKSSFLLT 101
H + + R++L ++ W +++ + LT
Sbjct: 61 VHALDLSSPEAREQLAAEAGDIDILVNNAGAIPGGGLDDVDDAAWRAGWELKVFGYIDLT 120
Query: 102 QEVLPYMRKKKGGSIVYVSSIGG 124
+ P M+ + G IV V G
Sbjct: 121 RLAYPRMKARGSGVIVNVIGAAG 143
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 50.5 bits (120), Expect = 3e-08
Identities = 44/147 (29%), Positives = 65/147 (44%), Gaps = 35/147 (23%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVI--SSRKESNVNKAVETLQKEGHQNVS-- 62
L GKVA++T ++ GIG AIAKRL+ +GA V I +RKE + V +Q G S
Sbjct: 2 LKGKVALVTGASRGIGRAIAKRLANDGALVAIHYGNRKE-EAEETVYEIQSNGGSAFSIG 60
Query: 63 -------GVVCHVANTD-ERQK--------------------LFEHCSEVVWDKIFDVNL 94
GV ++ D E Q E +E +D++ VN
Sbjct: 61 ANLESLHGVEALYSSLDNELQNRTGSTKFDILINNAGIGPGAFIEETTEQFFDRMVSVNA 120
Query: 95 KSSFLLTQEVLPYMRKKKGGSIVYVSS 121
K+ F + Q+ L +R I+ +SS
Sbjct: 121 KAPFFIIQQALSRLRDNS--RIINISS 145
>gnl|CDD|187662 cd09761, A3DFK9-like_SDR_c, Clostridium thermocellum A3DFK9-like, a
putative carbohydrate or polyalcohol metabolizing SDR,
classical (c) SDRs. This subgroup includes a putative
carbohydrate or polyalcohol metabolizing SDR (A3DFK9)
from Clostridium thermocellum. Its members have a
TGXXXGXG classical-SDR glycine-rich NAD-binding motif,
and some have a canonical SDR active site tetrad (A3DFK9
lacks the upstream Asn). SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 242
Score = 50.3 bits (120), Expect = 4e-08
Identities = 32/141 (22%), Positives = 49/141 (34%), Gaps = 26/141 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKES-----------------------N 45
GKVA++T GIG I G VV + E
Sbjct: 1 GKVAIVTGGGHGIGKQICLDFLEAGDKVVFADIDEERGADFAEAEGPNLFFVHGDVADET 60
Query: 46 VNKAVETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVL 105
+ K V E + +V + A + L E WD+I VNL + L++
Sbjct: 61 LVKFVVYAMLEKLGRIDVLVNNAARGSKGI-LSSLLLE-EWDRILSVNLTGPYELSRYCR 118
Query: 106 PYMRKKKGGSIVYVSSIGGFK 126
+ K G I+ ++S F+
Sbjct: 119 DELI-KNKGRIINIASTRAFQ 138
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 50.1 bits (120), Expect = 5e-08
Identities = 18/45 (40%), Positives = 29/45 (64%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVE 51
L GK AV+T +++G+G +A+RL+A GA V++ R + AV
Sbjct: 12 LSGKRAVVTGASDGLGLGLARRLAAAGAEVILPVRNRAKGEAAVA 56
>gnl|CDD|187630 cd05372, ENR_SDR, Enoyl acyl carrier protein (ACP) reductase (ENR),
divergent SDR. This bacterial subgroup of ENRs includes
Escherichia coli ENR. ENR catalyzes the
NAD(P)H-dependent reduction of enoyl-ACP in the last
step of fatty acid biosynthesis. De novo fatty acid
biosynthesis is catalyzed by the fatty acid synthetase
complex, through the serial addition of 2-carbon
subunits. In bacteria and plants,ENR catalyzes one of
six synthetic steps in this process. Oilseed rape ENR,
and also apparently the NADH-specific form of
Escherichia coli ENR, is tetrameric. Although similar
to the classical SDRs, this group does not have the
canonical catalytic tetrad, nor does it have the typical
Gly-rich NAD-binding pattern. Such so-called divergent
SDRs have a GXXXXXSXA NAD-binding motif and a YXXMXXXK
(or YXXXMXXXK) active site motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 49.9 bits (120), Expect = 6e-08
Identities = 36/150 (24%), Positives = 61/150 (40%), Gaps = 36/150 (24%)
Query: 9 GKVAVIT--ASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
GK +IT A+ I + IAK L GA + + + E+ + + ++ G + + C
Sbjct: 1 GKRILITGIANDRSIAWGIAKALHEAGAELAFTYQPEALRKRVEKLAERLGESALV-LPC 59
Query: 67 HVANTDERQKLFEHCSEVVWDKI-------------------FDVNLKS----------S 97
V+N +E ++LF + W K+ D + K S
Sbjct: 60 DVSNDEEIKELFAEVKK-DWGKLDGLVHSIAFAPKVQLKGPFLDTSRKGFLKALDISAYS 118
Query: 98 FL-LTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+ L + LP M GGSIV +S +G +
Sbjct: 119 LVSLAKAALPIM--NPGGSIVTLSYLGSER 146
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 49.7 bits (119), Expect = 7e-08
Identities = 25/74 (33%), Positives = 38/74 (51%), Gaps = 2/74 (2%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSR-KESNVNKAVETLQKEGHQNVSGVV 65
L GK A++T S+ GIG AK L+ GA VV++ R K NK V ++ G + S V
Sbjct: 4 LPGKTALVTGSSRGIGADTAKILAGAGAHVVVNYRQKAPRANKVVAEIEAAGGR-ASAVG 62
Query: 66 CHVANTDERQKLFE 79
+ + + L +
Sbjct: 63 ADLTDEESVAALMD 76
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 48.9 bits (117), Expect = 1e-07
Identities = 36/164 (21%), Positives = 64/164 (39%), Gaps = 45/164 (27%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+ ++T + G+G AIA+ + EGA VV++ + + A E L E + V
Sbjct: 6 QTVLVTGGSRGLGAAIARAFAREGARVVVNYHQSED---AAEALADELGDRAIALQADVT 62
Query: 70 NTDERQKLFEHCSE--------VV---------------------WD---KIFDVNLKSS 97
+ ++ Q +F +E VV W+ + + ++K +
Sbjct: 63 DREQVQAMFATATEHFGKPITTVVNNALADFSFDGDARKKADDITWEDFQQQLEGSVKGA 122
Query: 98 FLLTQEVLPYMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
Q LP MR++ G I+ +IG + L P PY
Sbjct: 123 LNTIQAALPGMREQGFGRII---NIG-------TNLFQNPVVPY 156
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 48.9 bits (117), Expect = 1e-07
Identities = 18/44 (40%), Positives = 27/44 (61%)
Query: 88 KIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFKQFKVS 131
D N + +TQ VLPY+R+++ G I+ +SSIGG F +S
Sbjct: 103 AQIDTNFFGALWVTQAVLPYLREQRSGHIIQISSIGGISAFPMS 146
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 48.8 bits (117), Expect = 1e-07
Identities = 40/150 (26%), Positives = 61/150 (40%), Gaps = 28/150 (18%)
Query: 1 MFKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN 60
T L GKV V+T + GIG +A+RL A GA + + +E+ + L G
Sbjct: 1 GPPMTSLAGKVVVVTGAARGIGAELARRLHARGAKLALVDLEEAELAALAAEL--GGDDR 58
Query: 61 VSGVVCHVANTDERQKLFEHCSE------VV-------------------WDKIFDVNLK 95
V VV V + Q E E VV + ++ DVNL
Sbjct: 59 VLTVVADVTDLAAMQAAAEEAVERFGGIDVVVANAGIASGGSVAQVDPDAFRRVIDVNLL 118
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIGGF 125
F + LP + +++ G ++ VSS+ F
Sbjct: 119 GVFHTVRATLPALIERR-GYVLQVSSLAAF 147
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 48.9 bits (117), Expect = 1e-07
Identities = 37/135 (27%), Positives = 61/135 (45%), Gaps = 27/135 (20%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
KV +IT + G+G A+AKR + EGA+VVI+ R + + +A +++ Q V V V
Sbjct: 1 EKVVIITGGSSGMGKAMAKRFAEEGANVVITGRTKEKLEEAKLEIEQFPGQ-VLTVQMDV 59
Query: 69 ANTDERQKLF-------------------------EHCSEVVWDKIFDVNLKSSFLLTQE 103
N ++ QK+ E S W+ + D+ L +F +Q
Sbjct: 60 RNPEDVQKMVEQIDEKFGRIDALINNAAGNFICPAEDLSVNGWNSVIDIVLNGTFYCSQA 119
Query: 104 VLPY-MRKKKGGSIV 117
V Y + K G+I+
Sbjct: 120 VGKYWIEKGIKGNII 134
>gnl|CDD|131468 TIGR02415, 23BDH, acetoin reductases. One member of this family,
as characterized in Klebsiella terrigena, is described
as able to interconvert acetoin + NADH with
meso-2,3-butanediol + NAD(+). It is also called capable
of irreversible reduction of diacetyl with NADH to
acetoin. Blomqvist, et al. decline to specify either EC
1.1.1.4 which is (R,R)-butanediol dehydrogenase, or EC
1.1.1.5, which is acetoin dehydrogenase without a
specified stereochemistry, for this enzyme. This enzyme
is a homotetramer in the family of short chain
dehydrogenases (pfam00106). Another member of this
family, from Corynebacterium glutamicum, is called
L-2,3-butanediol dehydrogenase (PMID:11577733) [Energy
metabolism, Fermentation].
Length = 254
Score = 48.6 bits (116), Expect = 2e-07
Identities = 31/141 (21%), Positives = 58/141 (41%), Gaps = 27/141 (19%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KVA++T +GIG IA+RL+ +G +V ++ E + + + + G + V+ V+
Sbjct: 1 KVALVTGGAQGIGKGIAERLAKDGFAVAVADLNEETAKETAKEINQAGGKAVA-YKLDVS 59
Query: 70 NTDERQKL-------------------------FEHCSEVVWDKIFDVNLKSSFLLTQEV 104
+ D+ +E K+++VN+K Q
Sbjct: 60 DKDQVFSAIDQAAEKFGGFDVMVNNAGVAPITPILEITEEELKKVYNVNVKGVLFGIQAA 119
Query: 105 LPYMRKKK-GGSIVYVSSIGG 124
+K+ GG I+ +SI G
Sbjct: 120 ARQFKKQGHGGKIINAASIAG 140
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 48.7 bits (116), Expect = 2e-07
Identities = 33/148 (22%), Positives = 62/148 (41%), Gaps = 29/148 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVIS--SRKESNVNKAVETLQKEGHQNVS- 62
RL G+ A+IT + GIG A A + EGA + ++ +E + + V+ +Q EG + V+
Sbjct: 52 RLQGRKALITGADSGIGRATAIAFAREGADIALNYLPEEEQDAAEVVQLIQAEGRKAVAL 111
Query: 63 ------------------------GVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSF 98
++ ++A K + +D F N+ + F
Sbjct: 112 PGDLKDEAFCRQLVERAVKELGGLDILVNIAGKQTAVKDIADITTEQFDATFKTNVYAMF 171
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
L + +P++ G SI+ SI ++
Sbjct: 172 WLCKAAIPHL--PPGASIINTGSIQSYQ 197
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 47.4 bits (113), Expect = 4e-07
Identities = 27/129 (20%), Positives = 59/129 (45%), Gaps = 22/129 (17%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKE-------------SNVNKAVETLQK- 55
+ ++T +T+GIG A++ RL+ G V+ +R +++ + TL +
Sbjct: 4 RTVLVTGATKGIGLALSLRLANLGHQVIGIARSAIDDFPGELFACDLADIEQTAATLAQI 63
Query: 56 EGHQNVSGVVCHVANTDERQKLFEHCSEVVWD---KIFDVNLKSSFLLTQEVLPYMRKKK 112
V +V +V L + ++ ++D+N++++ +TQ L M+ ++
Sbjct: 64 NEIHPVDAIVNNVGIA-----LPQPLGKIDLAALQDVYDLNVRAAVQVTQAFLEGMKLRE 118
Query: 113 GGSIVYVSS 121
G IV + S
Sbjct: 119 QGRIVNICS 127
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 46.9 bits (112), Expect = 6e-07
Identities = 27/137 (19%), Positives = 53/137 (38%), Gaps = 28/137 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
A+IT ++ GIG AIA+ L A ++++ R +++ + +
Sbjct: 4 PTALITGASRGIGAAIAREL-APTHTLLLGGRPAERLDELAAE-----LPGATPFPVDLT 57
Query: 70 NTDERQKLFE---------HCSEVV------------WDKIFDVNLKSSFLLTQEVLPYM 108
+ + E H + V W +VN+ + LT+ +LP +
Sbjct: 58 DPEAIAAAVEQLGRLDVLVHNAGVADLGPVAESTVDEWRATLEVNVVAPAELTRLLLPAL 117
Query: 109 RKKKGGSIVYVSSIGGF 125
R G +V+++S G
Sbjct: 118 R-AAHGHVVFINSGAGL 133
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 47.0 bits (112), Expect = 6e-07
Identities = 32/140 (22%), Positives = 56/140 (40%), Gaps = 26/140 (18%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTD 72
+IT + G+G AIA R + EG + ++ E + ++ L++ G C V +
Sbjct: 4 MITGAASGLGRAIALRWAREGWRLALADVNEEGGEETLKLLREAGGDGFY-QRCDVRDYS 62
Query: 73 ERQKLFEHCSE-------VV------------------WDKIFDVNLKSSFLLTQEVLPY 107
+ L + C E +V WD +NL + LP
Sbjct: 63 QLTALAQACEEKWGGIDVIVNNAGVASGGFFEELSLEDWDWQIAINLMGVVKGCKAFLPL 122
Query: 108 MRKKKGGSIVYVSSIGGFKQ 127
+++K G IV ++S+ G Q
Sbjct: 123 FKRQKSGRIVNIASMAGLMQ 142
>gnl|CDD|187663 cd09762, HSDL2_SDR_c, human hydroxysteroid dehydrogenase-like
protein 2 (HSDL2), classical (c) SDRs. This subgroup
includes human HSDL2 and related protens. These are
members of the classical SDR family, with a canonical
Gly-rich NAD-binding motif and the typical YXXXK active
site motif. However, the rest of the catalytic tetrad is
not strongly conserved. HSDL2 may play a part in fatty
acid metabolism, as it is found in peroxisomes. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 46.7 bits (111), Expect = 7e-07
Identities = 39/155 (25%), Positives = 63/155 (40%), Gaps = 51/155 (32%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISS-------------------------- 40
L GK IT ++ GIG AIA + + +GA+VVI++
Sbjct: 1 LAGKTLFITGASRGIGKAIALKAARDGANVVIAAKTAEPHPKLPGTIYTAAEEIEAAGGK 60
Query: 41 --------RKESNVNKAVE-TLQKEGH-----QNVSGVVCHVANTDER-QKLFEHCSEVV 85
R E V AVE ++K G N S + + T + K +
Sbjct: 61 ALPCIVDIRDEDQVRAAVEKAVEKFGGIDILVNNASAI--SLTGTLDTPMKRY------- 111
Query: 86 WDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVS 120
D + VN + ++L ++ LPY++K K I+ +S
Sbjct: 112 -DLMMGVNTRGTYLCSKACLPYLKKSKNPHILNLS 145
>gnl|CDD|130890 TIGR01831, fabG_rel, 3-oxoacyl-(acyl-carrier-protein) reductase,
putative. This model represents a small, very well
conserved family of proteins closely related to the FabG
family, TIGR01830, and possibly equal in function. In
all completed genomes with a member of this family, a
FabG in TIGR01830 is also found [Fatty acid and
phospholipid metabolism, Biosynthesis].
Length = 239
Score = 46.4 bits (110), Expect = 7e-07
Identities = 33/139 (23%), Positives = 58/139 (41%), Gaps = 28/139 (20%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVETLQKEGHQNVSGVVCHVANT 71
++T ++ GIG AIA RL+A+G + + S+ V +Q +G N + VA+
Sbjct: 2 LVTGASRGIGRAIANRLAADGFEICVHYHSGRSDAESVVSAIQAQG-GNARLLQFDVADR 60
Query: 72 DERQKLFEH-------------------------CSEVVWDKIFDVNLKSSFLLTQE-VL 105
+ L E SE WD + NL + + +
Sbjct: 61 VACRTLLEADIAEHGAYYGVVLNAGITRDAAFPALSEEDWDIVIHTNLDGFYNVIHPCTM 120
Query: 106 PYMRKKKGGSIVYVSSIGG 124
P +R ++GG I+ ++S+ G
Sbjct: 121 PMIRARQGGRIITLASVSG 139
>gnl|CDD|187669 cd09809, human_WWOX_like_SDR_c-like, human WWOX (WW
domain-containing oxidoreductase)-like, classical
(c)-like SDRs. Classical-like SDR domain of human WWOX
and related proteins. Proteins in this subfamily share
the glycine-rich NAD-binding motif of the classical
SDRs, have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 284
Score = 46.8 bits (111), Expect = 7e-07
Identities = 19/51 (37%), Positives = 30/51 (58%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ 59
GKV +IT + GIGF A+ + GA V+++ R S + AV + +E H+
Sbjct: 1 GKVIIITGANSGIGFETARSFALHGAHVILACRNMSRASAAVSRILEEWHK 51
>gnl|CDD|132250 TIGR03206, benzo_BadH, 2-hydroxycyclohexanecarboxyl-CoA
dehydrogenase. Members of this protein family are the
enzyme 2-hydroxycyclohexanecarboxyl-CoA dehydrogenase.
The enzymatic properties were confirmed experimentally
in Rhodopseudomonas palustris; the enzyme is
homotetrameric, and not sensitive to oxygen. This enzyme
is part of proposed pathway for degradation of
benzoyl-CoA to 3-hydroxypimeloyl-CoA that differs from
the analogous in Thauera aromatica. It also may occur in
degradation of the non-aromatic compound
cyclohexane-1-carboxylate.
Length = 250
Score = 46.5 bits (110), Expect = 8e-07
Identities = 32/140 (22%), Positives = 53/140 (37%), Gaps = 26/140 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L K A++T GIG A +R + EGA V + K ++ +G N C
Sbjct: 1 LKDKTAIVTGGGGGIGGATCRRFAEEGAKVAVFDLNREAAEKVAADIRAKG-GNAQAFAC 59
Query: 67 HVANTDE--------RQKL-----------------FEHCSEVVWDKIFDVNLKSSFLLT 101
+ + D Q L F +W+++ +NL + +
Sbjct: 60 DITDRDSVDTAVAAAEQALGPVDVLVNNAGWDKFGPFTKTEPPLWERLIAINLTGALHMH 119
Query: 102 QEVLPYMRKKKGGSIVYVSS 121
VLP M ++ G IV ++S
Sbjct: 120 HAVLPGMVERGAGRIVNIAS 139
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 46.7 bits (111), Expect = 8e-07
Identities = 35/143 (24%), Positives = 65/143 (45%), Gaps = 31/143 (21%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV-ETLQKEGHQNVSGVVCHV 68
KV +IT ++ GIG A A + G +V ++ + + +AV + ++++G + ++ V V
Sbjct: 3 KVMIITGASRGIGAATALLAAERGYAVCLNYLRNRDAAEAVVQAIRRQGGEALA-VAADV 61
Query: 69 ANTDERQKLFEHCSEVV--------------------------WDKIFDVNLKSSFLLTQ 102
A+ + +LFE + +IF N+ SFL +
Sbjct: 62 ADEADVLRLFEAVDRELGRLDALVNNAGILEAQMRLEQMDAARLTRIFATNVVGSFLCAR 121
Query: 103 EVLPYMRKK---KGGSIVYVSSI 122
E + M + +GG+IV VSS+
Sbjct: 122 EAVKRMSTRHGGRGGAIVNVSSM 144
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 46.8 bits (111), Expect = 8e-07
Identities = 32/139 (23%), Positives = 52/139 (37%), Gaps = 26/139 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH----QNVSGV 64
+V IT GIG A+A R +A G ++I R K E L E H +++
Sbjct: 269 PRVVAITGGARGIGRAVADRFAAAGDRLLIIDRDAEGAKKLAEALGDE-HLSVQADITDE 327
Query: 65 VCHVANTDERQKLFEHCSEVV-------------------WDKIFDVNLKSSFLLTQEVL 105
+ + Q + +V + +++DVNL +F +
Sbjct: 328 AAVESAFAQIQARWGRLDVLVNNAGIAEVFKPSLEQSAEDFTRVYDVNLSGAFACARAAA 387
Query: 106 PYMRKKKGGSIVYVSSIGG 124
M +GG IV + SI
Sbjct: 388 RLMS--QGGVIVNLGSIAS 404
Score = 46.0 bits (109), Expect = 2e-06
Identities = 29/144 (20%), Positives = 59/144 (40%), Gaps = 32/144 (22%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
+V ++T + GIG A +R + G VV++ R + ++L + H + V
Sbjct: 5 SRVVLVTGAAGGIGRAACQRFARAGDQVVVADRNVERARERADSLGPDHH----ALAMDV 60
Query: 69 ANTDERQKLFE-------HCSEVV--------------------WDKIFDVNLKSSFLLT 101
++ + ++ FE +V + ++ +NL ++L+
Sbjct: 61 SDEAQIREGFEQLHREFGRIDVLVNNAGVTDPTMTATLDTTLEEFARLQAINLTGAYLVA 120
Query: 102 QEVLPYM-RKKKGGSIVYVSSIGG 124
+E L M + G +IV V+S G
Sbjct: 121 REALRLMIEQGHGAAIVNVASGAG 144
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 46.5 bits (111), Expect = 9e-07
Identities = 32/140 (22%), Positives = 56/140 (40%), Gaps = 27/140 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L KV ++T GIG AI+ RL+ EGA VI R + ++ E L+ + V
Sbjct: 4 NLKDKVVIVTGGASGIGAAISLRLAEEGAIPVIFGRSAPD-DEFAEELRALQPRAEF-VQ 61
Query: 66 CHVANTDERQKLFEHCSEV------------VWDKI------------FDVNLKSSFLLT 101
+ + + + E V D + + NL +++
Sbjct: 62 VDLTDDAQCRDAVEQTVAKFGRIDGLVNNAGVNDGVGLEAGREAFVASLERNLIHYYVMA 121
Query: 102 QEVLPYMRKKKGGSIVYVSS 121
LP+++ + G+IV +SS
Sbjct: 122 HYCLPHLKASR-GAIVNISS 140
>gnl|CDD|187607 cd05349, BKR_2_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP]reductase (BKR), subgroup 2, classical (c) SDR.
This subgroup includes Rhizobium sp. NGR234 FabG1. The
Escherichai coli K12 BKR, FabG, belongs to a different
subgroup. BKR catalyzes the NADPH-dependent reduction of
ACP in the first reductive step of de novo fatty acid
synthesis (FAS). FAS consists of four elongation steps,
which are repeated to extend the fatty acid chain
through the addition of two-carbo units from malonyl
acyl-carrier protein (ACP): condensation, reduction,
dehydration, and a final reduction. Type II FAS, typical
of plants and many bacteria, maintains these activities
on discrete polypeptides, while type I FAS utilizes one
or two multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 246
Score = 45.9 bits (109), Expect = 1e-06
Identities = 35/163 (21%), Positives = 64/163 (39%), Gaps = 44/163 (26%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+V ++T ++ G+G AIA+ + EGA VV++ + + A E + E + + V
Sbjct: 1 QVVLVTGASRGLGAAIARSFAREGARVVVNYYR--STESA-EAVAAEAGERAIAIQADVR 57
Query: 70 NTDERQKLFEHCSE-----------VVWDKIFDVN--------------------LKSSF 98
+ D+ Q + E + D FD + +K +
Sbjct: 58 DRDQVQAMIEEAKNHFGPVDTIVNNALIDFPFDPDQRKTFDTIDWEDYQQQLEGAVKGAL 117
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPY 141
L Q VLP +++ G ++ +IG + L P PY
Sbjct: 118 NLLQAVLPDFKERGSGRVI---NIG-------TNLFQNPVVPY 150
>gnl|CDD|187621 cd05363, SDH_SDR_c, Sorbitol dehydrogenase (SDH), classical (c)
SDR. This bacterial subgroup includes Rhodobacter
sphaeroides SDH, and other SDHs. SDH preferentially
interconverts D-sorbitol (D-glucitol) and D-fructose,
but also interconverts L-iditol/L-sorbose and
galactitol/D-tagatose. SDH is NAD-dependent and is a
dimeric member of the SDR family. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 254
Score = 46.1 bits (109), Expect = 1e-06
Identities = 39/140 (27%), Positives = 60/140 (42%), Gaps = 22/140 (15%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRK-ESNVNKAVE------------TL 53
L GK A+IT S GIG A A+ EGA V I+ E+ A E T
Sbjct: 1 LDGKTALITGSARGIGRAFAQAYVREGARVAIADINLEAARATAAEIGPAACAISLDVTD 60
Query: 54 QKEGHQNVSGVVCHVANTD---ERQKLFEHCSEV-----VWDKIFDVNLKSSFLLTQEVL 105
Q + V+ +V + D LF+ V +D++F +N+ + + Q V
Sbjct: 61 QASIDRCVAALVDRWGSIDILVNNAALFDLAPIVDITRESYDRLFAINVSGTLFMMQAVA 120
Query: 106 PYM-RKKKGGSIVYVSSIGG 124
M + +GG I+ ++S G
Sbjct: 121 RAMIAQGRGGKIINMASQAG 140
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 46.2 bits (110), Expect = 1e-06
Identities = 34/146 (23%), Positives = 56/146 (38%), Gaps = 36/146 (24%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG------------ 57
K +T + GIG A A RL+A+GA + ++ R + + V + G
Sbjct: 1 KRCFVTGAASGIGRATALRLAAQGAELFLTDRDADGLAQTVADARALGGTVPEHRALDIS 60
Query: 58 -HQNVSG-------------VVCHVANT----DERQKLFEHCSEVVWDKIFDVNLKSSFL 99
+ V+ VV ++A + E W ++ DVNL
Sbjct: 61 DYDAVAAFAADIHAAHGSMDVVMNIAGISAWGTVDRLTHEQ-----WRRMVDVNLMGPIH 115
Query: 100 LTQEVLPYM-RKKKGGSIVYVSSIGG 124
+ + +P M +GG +V VSS G
Sbjct: 116 VIETFVPPMVAAGRGGHLVNVSSAAG 141
>gnl|CDD|187612 cd05354, SDR_c7, classical (c) SDR, subgroup 7. These proteins are
members of the classical SDR family, with a canonical
active site triad (and also an active site Asn) and a
typical Gly-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 235
Score = 45.9 bits (109), Expect = 1e-06
Identities = 29/144 (20%), Positives = 49/144 (34%), Gaps = 27/144 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGAS-VVISSRKESNVNKAVETLQKEGHQNVSGVVCH 67
K ++T + GIG A + L A GA V + R + L + V +
Sbjct: 3 DKTVLVTGANRGIGKAFVESLLAHGAKKVYAAVRDPG----SAAHLVAKYGDKVVPLRLD 58
Query: 68 VANTDERQKLFEHCSEV----------------------VWDKIFDVNLKSSFLLTQEVL 105
V + + + +V + DVN+ L Q
Sbjct: 59 VTDPESIKAAAAQAKDVDVVINNAGVLKPATLLEEGALEALKQEMDVNVFGLLRLAQAFA 118
Query: 106 PYMRKKKGGSIVYVSSIGGFKQFK 129
P ++ GG+IV ++S+ K F
Sbjct: 119 PVLKANGGGAIVNLNSVASLKNFP 142
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 45.8 bits (109), Expect = 1e-06
Identities = 34/144 (23%), Positives = 61/144 (42%), Gaps = 36/144 (25%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKEG------HQNVS 62
+VA++TAS GIG A A L+ +G + I+ E + E ++ G ++S
Sbjct: 3 QVAIVTASDSGIGKACALLLAQQGFDIGITWHSDEEGAKETAEEVRSHGVRAEIRQLDLS 62
Query: 63 -------------------GVVCHVANTDERQKL----FEHCSEVVWDKIFDVNLKSSFL 99
V+ + A + F+ W KIF V++ +FL
Sbjct: 63 DLPEGAQALDKLIQRLGRIDVLVNNAGAMTKAPFLDMDFDE-----WRKIFTVDVDGAFL 117
Query: 100 LTQEVLPYMRKK-KGGSIVYVSSI 122
+Q +M K+ +GG I+ ++S+
Sbjct: 118 CSQIAARHMVKQGQGGRIINITSV 141
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 45.8 bits (109), Expect = 2e-06
Identities = 16/48 (33%), Positives = 26/48 (54%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE 56
G+VAV+T + G+G+ A L+A+GA VV++ R A +
Sbjct: 16 GRVAVVTGANTGLGYETAAALAAKGAHVVLAVRNLDKGKAAAARITAA 63
>gnl|CDD|235914 PRK07041, PRK07041, short chain dehydrogenase; Provisional.
Length = 230
Score = 45.0 bits (107), Expect = 2e-06
Identities = 18/66 (27%), Positives = 28/66 (42%), Gaps = 2/66 (3%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTD 72
++ + GIG A+A+ +AEGA V I+SR + A L G V + +
Sbjct: 1 LVVGGSSGIGLALARAFAAEGARVTIASRSRDRLAAAARAL--GGGAPVRTAALDITDEA 58
Query: 73 ERQKLF 78
F
Sbjct: 59 AVDAFF 64
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 45.1 bits (107), Expect = 3e-06
Identities = 31/148 (20%), Positives = 62/148 (41%), Gaps = 28/148 (18%)
Query: 3 KATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVS 62
+ L GK ++T ++ GIG A A++ + GA+VV +R+E ++ + + + G +
Sbjct: 34 QPVDLTGKRILLTGASSGIGEAAAEQFARRGATVVAVARREDLLDAVADRITRAG-GDAM 92
Query: 63 GVVCHVANTDERQKLFEHCSEVV---------------------WDKIFDV------NLK 95
V C +++ D L + + D+ DV N
Sbjct: 93 AVPCDLSDLDAVDALVADVEKRIGGVDILINNAGRSIRRPLAESLDRWHDVERTMVLNYY 152
Query: 96 SSFLLTQEVLPYMRKKKGGSIVYVSSIG 123
+ L + + P M ++ G I+ V++ G
Sbjct: 153 APLRLIRGLAPGMLERGDGHIINVATWG 180
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 45.1 bits (107), Expect = 3e-06
Identities = 33/136 (24%), Positives = 55/136 (40%), Gaps = 29/136 (21%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTDE 73
IT ++ G G + +RL A G V + R+ A++ L+ + + V ++
Sbjct: 7 ITGASSGFGRGMTERLLARGDRVAATVRRPD----ALDDLKARYGDRLWVLQLDVTDSAA 62
Query: 74 RQK----------------------LF---EHCSEVVWDKIFDVNLKSSFLLTQEVLPYM 108
+ LF E S+ + D NL S + + LP++
Sbjct: 63 VRAVVDRAFAALGRIDVVVSNAGYGLFGAAEELSDAQIRRQIDTNLIGSIQVIRAALPHL 122
Query: 109 RKKKGGSIVYVSSIGG 124
R++ GG IV VSS GG
Sbjct: 123 RRQGGGRIVQVSSEGG 138
>gnl|CDD|180343 PRK05993, PRK05993, short chain dehydrogenase; Provisional.
Length = 277
Score = 45.0 bits (107), Expect = 3e-06
Identities = 39/143 (27%), Positives = 58/143 (40%), Gaps = 27/143 (18%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG----------HQ 59
+ +IT + GIG A+ L ++G V + RKE +V L+ EG +
Sbjct: 5 RSILITGCSSGIGAYCARALQSDGWRVFATCRKEEDV----AALEAEGLEAFQLDYAEPE 60
Query: 60 NVSGVVCHV-ANTDER-QKLF-----------EHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
+++ +V V + R LF E F+ N LT+ V+P
Sbjct: 61 SIAALVAQVLELSGGRLDALFNNGAYGQPGAVEDLPTEALRAQFEANFFGWHDLTRRVIP 120
Query: 107 YMRKKKGGSIVYVSSIGGFKQFK 129
MRK+ G IV SSI G K
Sbjct: 121 VMRKQGQGRIVQCSSILGLVPMK 143
>gnl|CDD|187535 cd02266, SDR, Short-chain dehydrogenases/reductases (SDR). SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase (KR) domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 186
Score = 44.4 bits (105), Expect = 3e-06
Identities = 25/114 (21%), Positives = 49/114 (42%), Gaps = 22/114 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVAN 70
++T + GIG AIA+ L++ G+ V++ SR++ V+ A G + +
Sbjct: 1 VLVTGGSGGIGGAIARWLASRGSPKVLVVSRRDVVVHNAAILD--------DGRL--IDL 50
Query: 71 TDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGG 124
T R ++ N+ + L + M+ K+ G + +SS+ G
Sbjct: 51 TGSR-----------IERAIRANVVGTRRLLEAARELMKAKRLGRFILISSVAG 93
>gnl|CDD|187666 cd09806, type1_17beta-HSD-like_SDR_c, human estrogenic
17beta-hydroxysteroid dehydrogenase type 1 (type 1
17beta-HSD)-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. This classical SDR subgroup
includes human type 1 17beta-HSD, human retinol
dehydrogenase 8, zebrafish photoreceptor associated
retinol dehydrogenase type 2, and a chicken
ovary-specific 17beta-hydroxysteroid dehydrogenase. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 44.4 bits (105), Expect = 5e-06
Identities = 36/141 (25%), Positives = 58/141 (41%), Gaps = 26/141 (18%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGAS---VVISSR----KESNVNKA-------VETLQK 55
V +IT + GIG +A RL+++ + V + R K A +ETLQ
Sbjct: 1 TVVLITGCSSGIGLHLAVRLASDPSKRFKVYATMRDLKKKGRLWEAAGALAGGTLETLQL 60
Query: 56 EGHQNVSGVVCHVANTDERQKLF------------EHCSEVVWDKIFDVNLKSSFLLTQE 103
+ + S T+ + E SE +FDVN+ + + Q
Sbjct: 61 DVCDSKSVAAAVERVTERHVDVLVCNAGVGLLGPLEALSEDAMASVFDVNVFGTVRMLQA 120
Query: 104 VLPYMRKKKGGSIVYVSSIGG 124
LP M+++ G I+ SS+GG
Sbjct: 121 FLPDMKRRGSGRILVTSSVGG 141
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 44.1 bits (104), Expect = 6e-06
Identities = 38/144 (26%), Positives = 65/144 (45%), Gaps = 25/144 (17%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVV-ISSRKESNVNKAVETLQKEGH---QNVS 62
L GKVA+IT G+G +A L+ GA +V + + VE L ++ H ++
Sbjct: 6 LNGKVAIITGCNTGLGQGMAIGLAKAGADIVGVGVAEAPETQAQVEALGRKFHFITADLI 65
Query: 63 G-------------VVCHV------ANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQE 103
V+ H+ A RQ L E WD + ++N K+ F L+Q
Sbjct: 66 QQKDIDSIVSQAVEVMGHIDILINNAGIIRRQDLLEF-GNKDWDDVININQKTVFFLSQA 124
Query: 104 VL-PYMRKKKGGSIVYVSSIGGFK 126
V ++++ GG I+ ++S+ F+
Sbjct: 125 VAKQFVKQGNGGKIINIASMLSFQ 148
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 43.8 bits (103), Expect = 7e-06
Identities = 41/167 (24%), Positives = 68/167 (40%), Gaps = 26/167 (15%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVI-----SSRKESNVNK----AVETLQKEGH-- 58
++A +T GIG +I +RL +G VV S R+ + + + EG+
Sbjct: 4 RIAYVTGGMGGIGTSICQRLHKDGFKVVAGCGPNSPRRVKWLEDQKALGFDFIASEGNVG 63
Query: 59 ------QNVSGVVCHVANTD--------ERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEV 104
V V D R +F + W + D NL S F +T++V
Sbjct: 64 DWDSTKAAFDKVKAEVGEIDVLVNNAGITRDVVFRKMTREDWTAVIDTNLTSLFNVTKQV 123
Query: 105 LPYMRKKKGGSIVYVSSIGGFK-QFKVSILILRPATPYQYKLSYQQE 150
+ M ++ G I+ +SS+ G K QF + A + + +S QE
Sbjct: 124 IDGMVERGWGRIINISSVNGQKGQFGQTNYSTAKAGIHGFTMSLAQE 170
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 43.7 bits (103), Expect = 8e-06
Identities = 34/148 (22%), Positives = 61/148 (41%), Gaps = 33/148 (22%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVV---ISSRKESNVNKAVETLQKEGHQ---- 59
L GKVAV+T G+G +A L+ G +V I E+ +E + G +
Sbjct: 8 LEGKVAVVTGCDTGLGQGMALGLAEAGCDIVGINIVEPTET-----IEQVTALGRRFLSL 62
Query: 60 --NVSGVVCHVANTDERQKLFEHC------------------SEVVWDKIFDVNLKSSFL 99
++ + A + F H SE WD + ++N+KS F
Sbjct: 63 TADLRKIDGIPALLERAVAEFGHIDILVNNAGLIRREDAIEFSEKDWDDVMNLNIKSVFF 122
Query: 100 LTQEVLP-YMRKKKGGSIVYVSSIGGFK 126
++Q ++ + GG I+ ++S+ F+
Sbjct: 123 MSQAAAKHFIAQGNGGKIINIASMLSFQ 150
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 43.6 bits (103), Expect = 9e-06
Identities = 39/140 (27%), Positives = 64/140 (45%), Gaps = 26/140 (18%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKES-NVNKAVETLQKEGHQNV-- 61
T L GKVAV+T + G+G A A L+ GA+VV++ + + + ++ ++ G + V
Sbjct: 8 TDLSGKVAVVTGAAAGLGRAEALGLARLGATVVVNDVASALDASDVLDEIRAAGAKAVAV 67
Query: 62 SGVVCHVANTDE---------------------RQKLFEHCSEVVWDKIFDVNLKSSFLL 100
+G + A DE R ++ + S+ WD + V+L+ FLL
Sbjct: 68 AGDISQRATADELVATAVGLGGLDIVVNNAGITRDRMLFNMSDEEWDAVIAVHLRGHFLL 127
Query: 101 TQEVLPYMR--KKKGGSIVY 118
T+ Y R K G VY
Sbjct: 128 TRNAAAYWRAKAKAAGGPVY 147
>gnl|CDD|187625 cd05367, SPR-like_SDR_c, sepiapterin reductase (SPR)-like,
classical (c) SDRs. Human SPR, a member of the SDR
family, catalyzes the NADP-dependent reduction of
sepiaptern to 7,8-dihydrobiopterin (BH2). In addition to
SPRs, this subgroup also contains Bacillus cereus yueD,
a benzil reductase, which catalyzes the stereospecific
reduction of benzil to (S)-benzoin. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 241
Score = 43.0 bits (102), Expect = 1e-05
Identities = 32/145 (22%), Positives = 56/145 (38%), Gaps = 41/145 (28%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGAS--VVISSR--------------------------K 42
V ++T ++ GIG A+A+ L G+ VV+ +R
Sbjct: 1 VIILTGASRGIGRALAEELLKRGSPSVVVLLARSEEPLQELKEELRPGLRVTTVKADLSD 60
Query: 43 ESNVNKAVETLQKEGHQNVS-----GVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSS 97
+ V + +E ++K + G + V K+ + K FD+NL S
Sbjct: 61 AAGVEQLLEAIRKLDGERDLLINNAGSLGPV------SKIEFIDLDE-LQKYFDLNLTSP 113
Query: 98 FLLTQEVLPYMRKKKG-GSIVYVSS 121
LT +L +K+ ++V VSS
Sbjct: 114 VCLTSTLLRAFKKRGLKKTVVNVSS 138
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 43.2 bits (102), Expect = 1e-05
Identities = 36/158 (22%), Positives = 64/158 (40%), Gaps = 38/158 (24%)
Query: 6 RLVGKVAVITAST--EGIGFAIAKRLSAEGASVVIS-----SRKESNVNKAVETLQKEGH 58
+L KVAV+T + +GIG AI K L+ GA + + ++ E +Q +
Sbjct: 3 QLKNKVAVVTGVSRLDGIGAAICKELAEAGADIFFTYWTAYDKEMPWGVDQDEQIQLQEE 62
Query: 59 QNVSGVVCH-----VANTDERQKL-------------------------FEHCSEVVWDK 88
+GV + D ++L F + + DK
Sbjct: 63 LLKNGVKVSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNAAYSTNNDFSNLTAEELDK 122
Query: 89 IFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+ VN++++ LL+ + KK GG I+ ++S G F+
Sbjct: 123 HYMVNVRATTLLSSQFARGFDKKSGGRIINMTS-GQFQ 159
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 42.8 bits (101), Expect = 2e-05
Identities = 33/152 (21%), Positives = 58/152 (38%), Gaps = 37/152 (24%)
Query: 7 LVGKVAVITAST--EGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ----- 59
L+ K+A++T ++ GIG A+ +RL+A+G + + + KE
Sbjct: 3 LMKKIALVTGASRLNGIGAAVCRRLAAKGIDIFFTYWSPYDKTMPWGMHDKEPVLLKEEI 62
Query: 60 NVSGVVCHVANTDERQ-----KLFEHCSEVV-------------------------WDKI 89
GV C D Q ++F SE + DK
Sbjct: 63 ESYGVRCEHMEIDLSQPYAPNRVFYAVSERLGDPSILINNAAYSTHTRLEELTAEQLDKH 122
Query: 90 FDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSS 121
+ VN++++ LL+ K GG I+ ++S
Sbjct: 123 YAVNVRATMLLSSAFAKQYDGKAGGRIINLTS 154
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 42.7 bits (101), Expect = 2e-05
Identities = 30/140 (21%), Positives = 56/140 (40%), Gaps = 30/140 (21%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
K +IT + G G +A RL+ +G +V+ + + V L+ E + G+ V
Sbjct: 2 SKTILITGAGSGFGREVALRLARKGHNVIAGVQ----IAPQVTALRAEAAR--RGLALRV 55
Query: 69 ANTD-----ERQKLFEHCSEVVWD-------------------KIFDVNLKSSFLLTQEV 104
D +R + E +V+ + ++F+ N+ LTQ
Sbjct: 56 EKLDLTDAIDRAQAAEWDVDVLLNNAGIGEAGAVVDIPVELVRELFETNVFGPLELTQGF 115
Query: 105 LPYMRKKKGGSIVYVSSIGG 124
+ M + G +V+ SS+ G
Sbjct: 116 VRKMVARGKGKVVFTSSMAG 135
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 42.1 bits (99), Expect = 3e-05
Identities = 32/143 (22%), Positives = 55/143 (38%), Gaps = 27/143 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETL-QKEGHQNVSGVV 65
+ ++T GIG +A L A GA+V+I R + A E + +G V
Sbjct: 5 FQDRTYLVTGGGSGIGKGVAAGLVAAGAAVMIVGRNPDKLAAAAEEIEALKGAGAVRYEP 64
Query: 66 CHVANTDERQKLFE-------------HC---SEVV----------WDKIFDVNLKSSFL 99
V + D+ + + HC SE + W + D+N+ +
Sbjct: 65 ADVTDEDQVARAVDAATAWHGRLHGVVHCAGGSETIGPITQIDSDAWRRTVDLNVNGTMY 124
Query: 100 LTQEVLPYMRKKKGGSIVYVSSI 122
+ + + + GGS V +SSI
Sbjct: 125 VLKHAARELVRGGGGSFVGISSI 147
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 42.3 bits (100), Expect = 3e-05
Identities = 38/150 (25%), Positives = 59/150 (39%), Gaps = 35/150 (23%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
GK+ V+T + GIG A + EGA VV S E+ + E ++ G + V
Sbjct: 312 PFSGKLVVVTGAGSGIGRETALAFAREGAEVVASDIDEAAAERTAELIRAAGAVAHAYRV 371
Query: 66 CHVANTDERQKLFEH-CSE------VV------------------WDKIFDVNLKS---- 96
V++ D + E +E VV WD++ DVNL
Sbjct: 372 -DVSDADAMEAFAEWVRAEHGVPDIVVNNAGIGMAGGFLDTSAEDWDRVLDVNLWGVIHG 430
Query: 97 SFLLTQEVLPYMRKK-KGGSIVYVSSIGGF 125
L ++ M ++ GG IV V+S +
Sbjct: 431 CRLFGRQ----MVERGTGGHIVNVASAAAY 456
>gnl|CDD|223528 COG0451, WcaG, Nucleoside-diphosphate-sugar epimerases [Cell
envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 314
Score = 41.9 bits (98), Expect = 4e-05
Identities = 29/151 (19%), Positives = 45/151 (29%), Gaps = 34/151 (22%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTD 72
++T IG + +RL A G V R + V VV + + D
Sbjct: 4 LVTGGAGFIGSHLVERLLAAGHDVRGLDRLRDGL--------DPLLSGVEFVVLDLTDRD 55
Query: 73 ERQKLFEHCSEVV----------------WDKIFDVNLKSSFLLTQEVLPYMRKKKGGSI 116
+L + + V + DVN+ T +L R
Sbjct: 56 LVDELAKGVPDAVIHLAAQSSVPDSNASDPAEFLDVNV----DGTLNLLEAARAAGVKRF 111
Query: 117 VYVSS---IGGFKQFKV---SILILRPATPY 141
V+ SS + G + RP PY
Sbjct: 112 VFASSVSVVYGDPPPLPIDEDLGPPRPLNPY 142
>gnl|CDD|187589 cd05328, 3alpha_HSD_SDR_c, alpha hydroxysteroid dehydrogenase
(3alpha_HSD), classical (c) SDRs. Bacterial
3-alpha_HSD, which catalyzes the NAD-dependent
oxidoreduction of hydroxysteroids, is a dimeric member
of the classical SDR family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 41.7 bits (98), Expect = 4e-05
Identities = 34/117 (29%), Positives = 54/117 (46%), Gaps = 10/117 (8%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV-ANT 71
VIT + GIG A A+ L G +V+ +E++V + T EG + + V A
Sbjct: 3 VITGAASGIGAATAELLEDAGHTVIGIDLREADVIADLST--PEG---RAAAIADVLARC 57
Query: 72 DERQKLFEHCSEVVWDKIFDVNLKSSFL----LTQEVLPYMRKKKGGSIVYVSSIGG 124
+C+ V + + LK ++ L + +LP +RK G + V VSSI G
Sbjct: 58 SGVLDGLVNCAGVGGTTVAGLVLKVNYFGLRALMEALLPRLRKGHGPAAVVVSSIAG 114
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 41.6 bits (98), Expect = 5e-05
Identities = 34/145 (23%), Positives = 58/145 (40%), Gaps = 26/145 (17%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
L G V VIT ++ GIG A A+ + GA +V+++R E + E + G + + V
Sbjct: 4 PLHGAVVVITGASSGIGQATAEAFARRGARLVLAARDEEALQAVAEECRALGAEVLV-VP 62
Query: 66 CHVANTDERQKLFEHCSEV-----VW--------------------DKIFDVNLKSSFLL 100
V + D+ + L + VW +++ NL
Sbjct: 63 TDVTDADQVKALATQAASFGGRIDVWVNNVGVGAVGRFEETPIEAHEQVIQTNLIGYMRD 122
Query: 101 TQEVLPYMRKKKGGSIVYVSSIGGF 125
LP +K+ G + + S+GGF
Sbjct: 123 AHAALPIFKKQGHGIFINMISLGGF 147
>gnl|CDD|187619 cd05361, haloalcohol_DH_SDR_c-like, haloalcohol dehalogenase,
classical (c) SDRs. Dehalogenases cleave carbon-halogen
bonds. Haloalcohol dehalogenase show low sequence
similarity to short-chain dehydrogenases/reductases
(SDRs). Like the SDRs, haloalcohol dehalogenases have a
conserved catalytic triad (Ser-Tyr-Lys/Arg), and form a
Rossmann fold. However, the normal classical SDR
NAD(P)-binding motif (TGXXGXG) and NAD-binding function
is replaced with a halide binding site, allowing the
enzyme to catalyze a dehalogenation reaction. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 242
Score = 40.6 bits (95), Expect = 9e-05
Identities = 29/139 (20%), Positives = 57/139 (41%), Gaps = 21/139 (15%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVI--SSRKESNVNKAVETL--------QKEGHQN 60
+A++T + G A A+ L+ +G +VV +S ++ +A E+ +++ +
Sbjct: 3 IALVTHARHFAGPASAEALTEDGYTVVCHDASFADAAERQAFESENPGTKALSEQKPEEL 62
Query: 61 VSGVVCHVANTD----------ERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRK 110
V V+ D + + SE + F+ F L Q + M+K
Sbjct: 63 VDAVLQAGGAIDVLVSNDYIPRPMNPI-DGTSEADIRQAFEALSIFPFALLQAAIAQMKK 121
Query: 111 KKGGSIVYVSSIGGFKQFK 129
GGSI++++S K
Sbjct: 122 AGGGSIIFITSAVPKKPLA 140
>gnl|CDD|236308 PRK08594, PRK08594, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 257
Score = 40.5 bits (95), Expect = 9e-05
Identities = 38/151 (25%), Positives = 61/151 (40%), Gaps = 37/151 (24%)
Query: 7 LVGKVAVI--TASTEGIGFAIAKRLSAEGASVVISSRKE---SNVNKAVETLQKEGHQNV 61
L GK V+ A+ I + IA+ L GA +V + E V + +TL+ + +
Sbjct: 5 LEGKTYVVMGVANKRSIAWGIARSLHNAGAKLVFTYAGERLEKEVRELADTLEGQESLLL 64
Query: 62 SGVVCHVANTDERQKLFE-------------HC-----SEVVWDKIFDVNLKSSFLLTQE 103
C V + +E FE HC E + + + + + FLL Q
Sbjct: 65 P---CDVTSDEEITACFETIKEEVGVIHGVAHCIAFANKEDLRGEFLETS-RDGFLLAQN 120
Query: 104 VLPY-----MRKKK-----GGSIVYVSSIGG 124
+ Y R+ K GGSIV ++ +GG
Sbjct: 121 ISAYSLTAVAREAKKLMTEGGSIVTLTYLGG 151
>gnl|CDD|166421 PLN02780, PLN02780, ketoreductase/ oxidoreductase.
Length = 320
Score = 40.6 bits (95), Expect = 1e-04
Identities = 34/147 (23%), Positives = 63/147 (42%), Gaps = 28/147 (19%)
Query: 3 KATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQ-KEGHQNV 61
K + G A++T T+GIG A +L+ +G ++V+ +R + +++Q K +
Sbjct: 47 KNLKKYGSWALVTGPTDGIGKGFAFQLARKGLNLVLVARNPDKLKDVSDSIQSKYSKTQI 106
Query: 62 SGVVCHVA-NTDE--------------------------RQKLFEHCSEVVWDKIFDVNL 94
VV + + DE + F E + + VN+
Sbjct: 107 KTVVVDFSGDIDEGVKRIKETIEGLDVGVLINNVGVSYPYARFFHEVDEELLKNLIKVNV 166
Query: 95 KSSFLLTQEVLPYMRKKKGGSIVYVSS 121
+ + +TQ VLP M K+K G+I+ + S
Sbjct: 167 EGTTKVTQAVLPGMLKRKKGAIINIGS 193
>gnl|CDD|180766 PRK06940, PRK06940, short chain dehydrogenase; Provisional.
Length = 275
Score = 40.4 bits (95), Expect = 1e-04
Identities = 33/133 (24%), Positives = 60/133 (45%), Gaps = 22/133 (16%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+V V+ + GIG AIA+R+ A G V+++ E N+ A +TL++ G +VS V+
Sbjct: 3 EVVVVIGAG-GIGQAIARRVGA-GKKVLLADYNEENLEAAAKTLREAGF-DVSTQEVDVS 59
Query: 70 NTDERQKLFEHC-----------------SEVVWDKIFDVNLKSSFLLTQEVLPYMRKKK 112
+ + + L S+ + I V+L + L+ +E +
Sbjct: 60 SRESVKALAATAQTLGPVTGLVHTAGVSPSQASPEAILKVDLYGTALVLEEFGKVI--AP 117
Query: 113 GGSIVYVSSIGGF 125
GG+ V ++S G
Sbjct: 118 GGAGVVIASQSGH 130
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 40.4 bits (95), Expect = 1e-04
Identities = 29/135 (21%), Positives = 52/135 (38%), Gaps = 18/135 (13%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKA--------VETLQKEGH 58
L GK A++T G+G + L+ GA V++ +R+ +A V L
Sbjct: 24 LSGKTAIVTGGYSGLGLETTRALAQAGAHVIVPARRPDVAREALAGIDGVEVVMLDLADL 83
Query: 59 QNVSGVVCHVANTDERQKLFEHCSEVV----------WDKIFDVNLKSSFLLTQEVLPYM 108
++V ++ R + + + V+ W+ F N F L + P +
Sbjct: 84 ESVRAFAERFLDSGRRIDILINNAGVMACPETRVGDGWEAQFATNHLGHFALVNLLWPAL 143
Query: 109 RKKKGGSIVYVSSIG 123
G +V +SS G
Sbjct: 144 AAGAGARVVALSSAG 158
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 39.7 bits (93), Expect = 2e-04
Identities = 19/74 (25%), Positives = 37/74 (50%), Gaps = 3/74 (4%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+ +IT +++G+G AIA +L +G V+ SR E NK + L ++ + N++ +
Sbjct: 2 RYVIITGTSQGLGEAIANQLLEKGTHVISISRTE---NKELTKLAEQYNSNLTFHSLDLQ 58
Query: 70 NTDERQKLFEHCSE 83
+ E + F
Sbjct: 59 DVHELETNFNEILS 72
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 39.6 bits (92), Expect = 2e-04
Identities = 40/148 (27%), Positives = 61/148 (41%), Gaps = 29/148 (19%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVIS-----SRKESNVNKAVE--------- 51
RL + A++T GIG A A + EGA V IS +V K +E
Sbjct: 46 RLKDRKALVTGGDSGIGRAAAIAYAREGADVAISYLPVEEEDAQDVKKIIEECGRKAVLL 105
Query: 52 -----------TLQKEGHQNVSG--VVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSF 98
+L E H+ + G ++ VA + + K F +N+ + F
Sbjct: 106 PGDLSDEKFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADLTSEQFQKTFAINVFALF 165
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
LTQE +P + KG SI+ SSI ++
Sbjct: 166 WLTQEAIPLL--PKGASIITTSSIQAYQ 191
>gnl|CDD|212497 cd11731, Lin1944_like_SDR_c, Lin1944 and related proteins,
classical (c) SDRs. Lin1944 protein from Listeria
Innocua is a classical SDR, it contains a glycine-rich
motif similar to the canonical motif of the SDR
NAD(P)-binding site. However, the typical SDR active
site residues are absent in this subgroup of proteins of
undetermined function. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 198
Score = 38.7 bits (91), Expect = 3e-04
Identities = 34/119 (28%), Positives = 52/119 (43%), Gaps = 14/119 (11%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNV-----NKA-VETL-QKEGHQNVSG 63
+ VI A+ IG A+A+ LSA G V+ + R + ++A ++ L +K GH
Sbjct: 1 IIVIGATG-TIGLAVAQLLSAHGHEVITAGRSSGDYQVDITDEASIKALFEKVGH--FDA 57
Query: 64 VVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSI 122
+V A E L E + + + L L + LPY+ GGSI S I
Sbjct: 58 IVS-TAGDAEFAPLAELTDA-DFQRGLNSKLLGQINLVRHGLPYLN--DGGSITLTSGI 112
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 38.7 bits (91), Expect = 4e-04
Identities = 38/153 (24%), Positives = 60/153 (39%), Gaps = 39/153 (25%)
Query: 7 LVGKVAVIT--ASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSG 63
L GK +I A+ I + IAK L+ +GA + + + E + K VE L +E G V
Sbjct: 4 LEGKRILIMGVANNRSIAWGIAKALAEQGAELAFTYQGER-LEKRVEELAEELGSDLV-- 60
Query: 64 VVCHVANTDERQKLFEHCSEVVWDKI-------------------FDVNLKS-------- 96
+ C V N + LF + W K+ D + +
Sbjct: 61 LPCDVTNDESIDALFATIKK-KWGKLDGLVHSIAFAPKEELKGDYLDTSREGFLIAMDIS 119
Query: 97 --SFL-LTQEVLPYMRKKKGGSIVYVSSIGGFK 126
SF L + P M GGSI+ ++ +G +
Sbjct: 120 AYSFTALAKAARPLM--NNGGSILTLTYLGSER 150
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 38.6 bits (90), Expect = 4e-04
Identities = 38/152 (25%), Positives = 64/152 (42%), Gaps = 32/152 (21%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVI----SSRKESNVNKAVETLQKEGHQNVS 62
L GKV +I + +G IA+ L+A+GA V S+ +++ + V ++ G + V+
Sbjct: 6 LKGKVVLIAGGAKNLGGLIARDLAAQGAKAVAIHYNSAASKADAEETVAAVKAAGAKAVA 65
Query: 63 ----------------------GVVCHVANTDER--QKLFEHCSEVVWDKIFDVNLKSSF 98
G NT + +K SE +D++F VN KS+F
Sbjct: 66 FQADLTTAAAVEKLFDDAKAAFGRPDIAINTVGKVLKKPIVEISEAEYDEMFAVNSKSAF 125
Query: 99 LLTQEVLPYMRKKKGGSIVYV--SSIGGFKQF 128
+E ++ G IV + S +G F F
Sbjct: 126 FFIKEAGRHL--NDNGKIVTLVTSLLGAFTPF 155
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 38.2 bits (89), Expect = 5e-04
Identities = 36/142 (25%), Positives = 58/142 (40%), Gaps = 29/142 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KV +IT ++ GIG A A +A G SV I+ +++ + + V VA
Sbjct: 3 KVVLITGASRGIGRATAVLAAARGWSVGINYARDAAAAEETADAVRAAGGRACVVAGDVA 62
Query: 70 NTDERQKLFEHC-------------------SEVVWD-------KIFDVNLKSSFLLTQE 103
N + +F+ S + D ++FD N+ ++L +E
Sbjct: 63 NEADVIAMFDAVQSAFGRLDALVNNAGIVAPSMPLADMDAARLRRMFDTNVLGAYLCARE 122
Query: 104 V---LPYMRKKKGGSIVYVSSI 122
L R +GG+IV VSSI
Sbjct: 123 AARRLSTDRGGRGGAIVNVSSI 144
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 38.1 bits (88), Expect = 7e-04
Identities = 32/144 (22%), Positives = 59/144 (40%), Gaps = 27/144 (18%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVC 66
L GK A+IT ++ GIG +A GA V I++R + K + + G + V V C
Sbjct: 7 LHGKRALITGASTGIGKRVALAYVEAGAQVAIAARHLDALEKLADEIGTSGGKVVP-VCC 65
Query: 67 HVANTDERQKLFEH------------CSEVV-------------WDKIFDVNLKSSFLLT 101
V+ + + + C+ + + ++ + N+ FL
Sbjct: 66 DVSQHQQVTSMLDQVTAELGGIDIAVCNAGIITVTPMLDMPLEEFQRLQNTNVTGVFLTA 125
Query: 102 QEVLPYM-RKKKGGSIVYVSSIGG 124
Q M ++ +GG I+ +S+ G
Sbjct: 126 QAAAKAMVKQGQGGVIINTASMSG 149
>gnl|CDD|131732 TIGR02685, pter_reduc_Leis, pteridine reductase. Pteridine
reductase is an enzyme used by trypanosomatids
(including Trypanosoma cruzi and Leishmania major) to
obtain reduced pteridines by salvage rather than
biosynthetic pathways. Enzymes in T. cruzi described as
pteridine reductase 1 (PTR1) and pteridine reductase 2
(PTR2) have different activity profiles. PTR1 is more
active with with fully oxidized biopterin and folate
than with reduced forms, while PTR2 reduces
dihydrobiopterin and dihydrofolate but not oxidized
pteridines. T. cruzi PTR1 and PTR2 are more similar to
each other in sequence than either is to the pteridine
reductase of Leishmania major, and all are included in
this family.
Length = 267
Score = 38.0 bits (88), Expect = 7e-04
Identities = 21/76 (27%), Positives = 32/76 (42%), Gaps = 4/76 (5%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
AV+T + + IG +IA L EG VV+ R + + L + S V C A
Sbjct: 3 AAVVTGAAKRIGSSIAVALHQEGYRVVLHYHRSAAAASTLAAELNAR--RPNSAVTCQ-A 59
Query: 70 NTDERQKLFEHCSEVV 85
+ LF C ++
Sbjct: 60 DLSNSATLFSRCEAII 75
>gnl|CDD|187583 cd05322, SDH_SDR_c_like, Sorbitol 6-phosphate dehydrogenase (SDH),
classical (c) SDRs. Sorbitol 6-phosphate dehydrogenase
(SDH, aka glucitol 6-phosphate dehydrogenase) catalyzes
the NAD-dependent interconversion of D-fructose
6-phosphate to D-sorbitol 6-phosphate. SDH is a member
of the classical SDRs, with the characteristic catalytic
tetrad, but without a complete match to the typical
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 37.1 bits (86), Expect = 0.001
Identities = 28/142 (19%), Positives = 47/142 (33%), Gaps = 26/142 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
+VAV+ + +G + L+ G V ++ N K + + E + G
Sbjct: 2 NQVAVVIGGGQTLGEFLCHGLAEAGYDVAVADINSENAEKVADEINAEYGEKAYGFGADA 61
Query: 69 ANTDERQKL-------FEHCSEVV------------------WDKIFDVNLKSSFLLTQE 103
N L F+ +V +D+ VNL FL +E
Sbjct: 62 TNEQSVIALSKGVDEIFKRVDLLVYSAGIAKSAKITDFELGDFDRSLQVNLVGYFLCARE 121
Query: 104 VLPYM-RKKKGGSIVYVSSIGG 124
M R G I+ ++S G
Sbjct: 122 FSKLMIRDGIQGRIIQINSKSG 143
>gnl|CDD|133446 cd01078, NAD_bind_H4MPT_DH, NADP binding domain of methylene
tetrahydromethanopterin dehydrogenase. Methylene
Tetrahydromethanopterin Dehydrogenase (H4MPT DH) NADP
binding domain. NADP-dependent H4MPT DH catalyzes the
dehydrogenation of methylene- H4MPT and
methylene-tetrahydrofolate (H4F) with NADP+ as
cofactor. H4F and H4MPT are both cofactors that carry
the one-carbon units between the formyl and methyl
oxidation level. H4F and H4MPT are structurally
analogous to each other with respect to the pterin
moiety, but each has distinct side chain. H4MPT is
present only in anaerobic methanogenic archaea and
aerobic methylotrophic proteobacteria. H4MPT seems to
have evolved independently from H4F and functions as a
distinct carrier in C1 metabolism. Amino acid DH-like
NAD(P)-binding domains are members of the Rossmann fold
superfamily and include glutamate, leucine, and
phenylalanine DHs, methylene tetrahydrofolate DH,
methylene-tetrahydromethanopterin DH,
methylene-tetrahydropholate DH/cyclohydrolase,
Shikimate DH-like proteins, malate oxidoreductases, and
glutamyl tRNA reductase. Amino acid DHs catalyze the
deamination of amino acids to keto acids with NAD(P)+
as a cofactor. The NAD(P)-binding Rossmann fold
superfamily includes a wide variety of protein families
including NAD(P)- binding domains of alcohol DHs,
tyrosine-dependent oxidoreductases,
glyceraldehyde-3-phosphate DH, lactate/malate DHs,
formate/glycerate DHs, siroheme synthases,
6-phosphogluconate DH, amino acid DHs, repressor rex,
NAD-binding potassium channel domain, CoA-binding, and
ornithine cyclodeaminase-like domains. These domains
have an alpha-beta-alpha configuration. NAD binding
involves numerous hydrogen and van der Waals contacts.
Length = 194
Score = 37.0 bits (86), Expect = 0.002
Identities = 20/60 (33%), Positives = 28/60 (46%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
L GK AV+ T +G A L+ EGA VV+ R KA ++L+ + V V
Sbjct: 24 KDLKGKTAVVLGGTGPVGQRAAVLLAREGARVVLVGRDLERAQKAADSLRARFGEGVGAV 83
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 37.0 bits (86), Expect = 0.002
Identities = 29/139 (20%), Positives = 54/139 (38%), Gaps = 24/139 (17%)
Query: 5 TRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ----- 59
GK ++ + GIG AI +R +GA+V + + A E L +E
Sbjct: 2 GAFTGKKVLVLGGSRGIGAAIVRRFVTDGANVRFTY---AGSKDAAERLAQETGATAVQT 58
Query: 60 ---NVSGVVCHVANTDERQKLFEHCSEVVW-----------DKIFDVNLKSSFLLTQEVL 105
+ V+ V + L + V+ D++F +N+ + + + E
Sbjct: 59 DSADRDAVIDVVRKSGALDILVVNAGIAVFGDALELDADDIDRLFKINIHAPYHASVEAA 118
Query: 106 PYMRKKKGGSIVYVSSIGG 124
M +GG I+ + S+ G
Sbjct: 119 RQM--PEGGRIIIIGSVNG 135
>gnl|CDD|187595 cd05334, DHPR_SDR_c_like, dihydropteridine reductase (DHPR),
classical (c) SDRs. Dihydropteridine reductase is an
NAD-binding protein related to the SDRs. It converts
dihydrobiopterin into tetrahydrobiopterin, a cofactor
necessary in catecholamines synthesis. Dihydropteridine
reductase has the YXXXK of these tyrosine-dependent
oxidoreductases, but lacks the typical upstream Asn and
Ser catalytic residues. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 221
Score = 36.9 bits (86), Expect = 0.002
Identities = 21/134 (15%), Positives = 46/134 (34%), Gaps = 29/134 (21%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKA----------VETLQ---- 54
+V ++ +G A+ + + G V E+ A E +
Sbjct: 1 ARVVLVYGGRGALGSAVVQAFKSRGWWVASIDLAENEEADASIIVLDSDSFTEQAKQVVA 60
Query: 55 --KEGHQNVSGVVCHVA-----NTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPY 107
V ++C VA + + + ++ WD ++ NL +SF+ + +
Sbjct: 61 SVARLSGKVDALIC-VAGGWAGGSAKSKSFVKN-----WDLMWKQNLWTSFIASHLATKH 114
Query: 108 MRKKKGGSIVYVSS 121
+ GG +V +
Sbjct: 115 L--LSGGLLVLTGA 126
>gnl|CDD|187653 cd08950, KR_fFAS_SDR_c_like, ketoacyl reductase (KR) domain of
fungal-type fatty acid synthase (fFAS), classical
(c)-like SDRs. KR domain of fungal-type fatty acid
synthase (FAS), type I. Fungal-type FAS is a
heterododecameric FAS composed of alpha and beta
multifunctional polypeptide chains. The KR, an SDR
family member, is located centrally in the alpha chain.
KR catalyzes the NADP-dependent reduction of
ketoacyl-ACP to hydroxyacyl-ACP. KR shares the critical
active site Tyr of the Classical SDR and has partial
identity of the active site tetrad, but the upstream
Asn is replaced in KR by Met. As in other SDRs, there
is a glycine rich NAD-binding motif, but the pattern
found in KR does not match the classical SDRs, and is
not strictly conserved within this group. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical
SDRs have lost catalytic activity and/or have an
unusual NAD(P)-binding motif and missing or unusual
active site residues. Reactions catalyzed within the
SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase
activity, dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 259
Score = 36.8 bits (86), Expect = 0.002
Identities = 14/38 (36%), Positives = 24/38 (63%), Gaps = 1/38 (2%)
Query: 8 VGKVAVITASTEG-IGFAIAKRLSAEGASVVISSRKES 44
GKVA++T + G IG + L A GA+V++++ + S
Sbjct: 6 AGKVALVTGAGPGSIGAEVVAGLLAGGATVIVTTSRFS 43
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 36.6 bits (85), Expect = 0.002
Identities = 39/162 (24%), Positives = 58/162 (35%), Gaps = 53/162 (32%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVI---------SSRKESNVNKAVETLQKEGHQ 59
G+V ++T + GIG A A +AEGA VV+ S+ S V+ + G +
Sbjct: 6 GRVVIVTGAGGGIGRAHALAFAAEGARVVVNDIGVGLDGSASGGSAAQAVVDEIVAAGGE 65
Query: 60 NVSGVVCHVANTDE-------------------------------RQKLFEHCSEVVWDK 88
VAN D+ R ++ + SE WD
Sbjct: 66 A-------VANGDDIADWDGAANLVDAAVETFGGLDVLVNNAGILRDRMIANMSEEEWDA 118
Query: 89 IFDVNLKSSFLLTQEVLPYMR-KKKGG-----SIVYVSSIGG 124
+ V+LK F + Y R + K G I+ SS G
Sbjct: 119 VIAVHLKGHFATLRHAAAYWRAESKAGRAVDARIINTSSGAG 160
>gnl|CDD|212495 cd09807, retinol-DH_like_SDR_c, retinol dehydrogenases
(retinol-DHs), classical (c) SDRs. Classical SDR-like
subgroup containing retinol-DHs and related proteins.
Retinol is processed by a medium chain alcohol
dehydrogenase followed by retinol-DHs. Proteins in this
subfamily share the glycine-rich NAD-binding motif of
the classical SDRs, have a partial match to the
canonical active site tetrad, but lack the typical
active site Ser. This subgroup includes the human
proteins: retinol dehydrogenase -12, -13 ,and -14. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 274
Score = 36.3 bits (84), Expect = 0.003
Identities = 36/167 (21%), Positives = 64/167 (38%), Gaps = 29/167 (17%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
GK +IT + GIG A+ L+ GA V+++ R + +A ++++ V+
Sbjct: 1 GKTVIITGANTGIGKETARELARRGARVIMACRDMAKCEEAAAEIRRDTLN--HEVIVRH 58
Query: 69 ANTDERQKLFEHCSEVV--------------------------WDKIFDVNLKSSFLLTQ 102
+ + + +E + ++ F VN FLLT
Sbjct: 59 LDLASLKSIRAFAAEFLAEEDRLDVLINNAGVMRCPYSKTEDGFEMQFGVNHLGHFLLTN 118
Query: 103 EVLPYMRKKKGGSIVYVSSIGGFKQFKVSILILRPATPYQYKLSYQQ 149
+L ++K IV VSS+ K K++ L Y +Y Q
Sbjct: 119 LLLDLLKKSAPSRIVNVSSL-AHKAGKINFDDLNSEKSYNTGFAYCQ 164
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 36.2 bits (84), Expect = 0.003
Identities = 36/134 (26%), Positives = 50/134 (37%), Gaps = 19/134 (14%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVE------TLQKEGHQNVSG 63
K +IT + GIG A L G V+ + RK +V + L + ++V
Sbjct: 3 KSVLITGCSSGIGLEAALELKRRGYRVLAACRKPDDVARMNSLGFTGILLDLDDPESVER 62
Query: 64 VVCHV-ANTDER-QKLF-----------EHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRK 110
V A TD R LF S ++ F N + LT +LP M
Sbjct: 63 AADEVIALTDNRLYGLFNNAGFGVYGPLSTISRQQMEQQFSTNFFGTHQLTMLLLPAMLP 122
Query: 111 KKGGSIVYVSSIGG 124
G IV SS+ G
Sbjct: 123 HGEGRIVMTSSVMG 136
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 36.0 bits (83), Expect = 0.004
Identities = 33/142 (23%), Positives = 59/142 (41%), Gaps = 31/142 (21%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKEGHQ--------- 59
+A++T + GIG A A L+ EG +V ++ + + V + + G +
Sbjct: 2 AIALVTGGSRGIGRATALLLAQEGYTVAVNYQQNLHAAQEVVNLITQAGGKAFVLQADIS 61
Query: 60 NVSGVVCHVANTDERQK-----------LFEHCS------EVVWDKIFDVNLKSSFLLTQ 102
+ + VV D+ + LF C+ E + +++ N+ FL +
Sbjct: 62 DENQVVAMFTAIDQHDEPLAALVNNAGILFTQCTVENLTAERI-NRVLSTNVTGYFLCCR 120
Query: 103 EVLPYMRKK---KGGSIVYVSS 121
E + M K GG+IV VSS
Sbjct: 121 EAVKRMALKHGGSGGAIVNVSS 142
>gnl|CDD|236229 PRK08303, PRK08303, short chain dehydrogenase; Provisional.
Length = 305
Score = 36.1 bits (84), Expect = 0.004
Identities = 16/35 (45%), Positives = 22/35 (62%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLSAEGASVVISSR 41
L GKVA++ +T G G IA L A GA+V ++ R
Sbjct: 6 LRGKVALVAGATRGAGRGIAVELGAAGATVYVTGR 40
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 35.5 bits (82), Expect = 0.005
Identities = 28/146 (19%), Positives = 55/146 (37%), Gaps = 48/146 (32%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKE------------------------SNVNKA 49
+T +T G G I +R +G V+ + R++ + + +
Sbjct: 5 VTGATAGFGECITRRFIQQGHKVIATGRRQERLQELKDELGDNLYIAQLDVRNRAAIEEM 64
Query: 50 VETLQKEGHQNVSGVV-----------CHVANTDERQKLFEHCSEVVWDKIFDVNLKSSF 98
+ +L E +N+ +V H A+ ++ W+ + D N K
Sbjct: 65 LASLPAE-WRNIDVLVNNAGLALGLEPAHKASVED------------WETMIDTNNKGLV 111
Query: 99 LLTQEVLPYMRKKKGGSIVYVSSIGG 124
+T+ VLP M ++ G I+ + S G
Sbjct: 112 YMTRAVLPGMVERNHGHIINIGSTAG 137
>gnl|CDD|187665 cd09805, type2_17beta_HSD-like_SDR_c, human 17beta-hydroxysteroid
dehydrogenase type 2 (type 2 17beta-HSD)-like, classical
(c) SDRs. 17beta-hydroxysteroid dehydrogenases are a
group of isozymes that catalyze activation and
inactivation of estrogen and androgens. This
classical-SDR subgroup includes the human proteins: type
2 17beta-HSD, type 6 17beta-HSD, type 2 11beta-HSD,
dehydrogenase/reductase SDR family member 9,
short-chain dehydrogenase/reductase family 9C member 7,
3-hydroxybutyrate dehydrogenase type 1, and retinol
dehydrogenase 5. SDRs are a functionally diverse family
of oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 281
Score = 35.3 bits (82), Expect = 0.006
Identities = 36/142 (25%), Positives = 59/142 (41%), Gaps = 29/142 (20%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASV-----------------VISSR---------KE 43
K +IT G G +AK+L + G +V V S R K
Sbjct: 1 KAVLITGCDSGFGNLLAKKLDSLGFTVLAGCLTKNGPGAKELRRVCSDRLRTLQLDVTKP 60
Query: 44 SNVNKAVETL-QKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQ 102
+ +A + + + G + + G+V + A E + K +VNL + +T+
Sbjct: 61 EQIKRAAQWVKEHVGEKGLWGLV-NNAGILGFGGDEELLPMDDYRKCMEVNLFGTVEVTK 119
Query: 103 EVLPYMRKKKGGSIVYVSSIGG 124
LP +R+ K G +V VSS+GG
Sbjct: 120 AFLPLLRRAK-GRVVNVSSMGG 140
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 35.1 bits (81), Expect = 0.008
Identities = 31/135 (22%), Positives = 59/135 (43%), Gaps = 26/135 (19%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVS--------- 62
A++ ++ GIG A A L+A G V + +R+ + V+ ++ +G + V+
Sbjct: 13 ALVAGASSGIGAATAIELAAAGFPVALGARRVEKCEELVDKIRADGGEAVAFPLDVTDPD 72
Query: 63 GVVCHVANTDER----------------QKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
V VA +E KL E +E ++ ++L + L VLP
Sbjct: 73 SVKSFVAQAEEALGEIEVLVSGAGDTYFGKLHEISTEQFESQV-QIHLVGANRLATAVLP 131
Query: 107 YMRKKKGGSIVYVSS 121
M +++ G +++V S
Sbjct: 132 GMIERRRGDLIFVGS 146
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 34.5 bits (80), Expect = 0.010
Identities = 15/45 (33%), Positives = 26/45 (57%), Gaps = 3/45 (6%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
+IT + + IG A+A L A+G V++S R A++ L++ G
Sbjct: 6 LITGAGQRIGLALAWHLLAQGQPVIVSYRTH---YPAIDGLRQAG 47
>gnl|CDD|187654 cd08951, DR_C-13_KR_SDR_c_like, daunorubicin C-13 ketoreductase
(KR), classical (c)-like SDRs. Daunorubicin is a
clinically important therapeutic compound used in some
cancer treatments. Daunorubicin C-13 ketoreductase is
member of the classical SDR family with a canonical
glycine-rich NAD(P)-binding motif, but lacking a
complete match to the active site tetrad characteristic
of this group. The critical Tyr, plus the Lys and
upstream Asn are present, but the catalytic Ser is
replaced, generally by Gln. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 260
Score = 34.8 bits (80), Expect = 0.010
Identities = 25/131 (19%), Positives = 52/131 (39%), Gaps = 33/131 (25%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTDE 73
IT S++G+G A A+ L +G VV+ +R + A ++ +++ E
Sbjct: 12 ITGSSDGLGLAAARTLLHQGHEVVLHARSQKRAADAKAACP----GAAGVLIGDLSSLAE 67
Query: 74 RQKLFE------------HCSEVVWD-----------KIFDVNLKSSFLLTQEVLPYMRK 110
+KL + H + ++ + VN+ + ++LT + R
Sbjct: 68 TRKLADQVNAIGRFDAVIHNAGILSGPNRKTPDTGIPAMVAVNVLAPYVLTALIRRPKR- 126
Query: 111 KKGGSIVYVSS 121
++Y+SS
Sbjct: 127 -----LIYLSS 132
>gnl|CDD|236389 PRK09134, PRK09134, short chain dehydrogenase; Provisional.
Length = 258
Score = 34.5 bits (80), Expect = 0.011
Identities = 27/122 (22%), Positives = 46/122 (37%), Gaps = 31/122 (25%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVI---SSRKESNVNKAVETLQKEGHQNVSGVVC 66
+ A++T + IG AIA L+A G V + SR E+ ++ G + V+ +
Sbjct: 10 RAALVTGAARRIGRAIALDLAAHGFDVAVHYNRSRDEAE--ALAAEIRALGRRAVA-LQA 66
Query: 67 HVANTDERQKLFEHCSEV-------------------------VWDKIFDVNLKSSFLLT 101
+A+ E + L S WD+ NL++ F+L
Sbjct: 67 DLADEAEVRALVARASAALGPITLLVNNASLFEYDSAASFTRASWDRHMATNLRAPFVLA 126
Query: 102 QE 103
Q
Sbjct: 127 QA 128
>gnl|CDD|187645 cd08941, 3KS_SDR_c, 3-keto steroid reductase, classical (c) SDRs.
3-keto steroid reductase (in concert with other
enzymes) catalyzes NADP-dependent sterol C-4
demethylation, as part of steroid biosynthesis. 3-keto
reductase is a classical SDR, with a well conserved
canonical active site tetrad and fairly well conserved
characteristic NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 290
Score = 34.7 bits (80), Expect = 0.011
Identities = 14/51 (27%), Positives = 27/51 (52%), Gaps = 8/51 (15%)
Query: 10 KVAVITASTEGIGFAIAKRLSAE-----GASVVISSRKESNVNKAVETLQK 55
KV ++T + G+G AI +RL AE +++++ R N+ +A +
Sbjct: 2 KVVLVTGANSGLGLAICERLLAEDDENPELTLILACR---NLQRAEAACRA 49
Score = 27.0 bits (60), Expect = 4.5
Identities = 11/35 (31%), Positives = 21/35 (60%), Gaps = 1/35 (2%)
Query: 89 IFDVNLKSSFLLTQEVLPYMRKKKGGS-IVYVSSI 122
+F N+ + L +E+ P + + GGS I++ SS+
Sbjct: 147 VFQTNVFGHYYLIRELEPLLCRSDGGSQIIWTSSL 181
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 33.4 bits (77), Expect = 0.026
Identities = 29/135 (21%), Positives = 42/135 (31%), Gaps = 31/135 (22%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGVVCHVANTD 72
IT + GIG A A +AEG V E+ + L E G N V +
Sbjct: 6 ITGAASGIGRATALLFAAEGWRVGAYDINEA----GLAALAAELGAGNAWTGALDVTDRA 61
Query: 73 ERQK--------------------------LFEHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
FE D++ D+N+K LP
Sbjct: 62 AWDAALADFAAATGGRLDVLFNNAGILRGGPFEDIPLEAHDRVIDINVKGVLNGAHAALP 121
Query: 107 YMRKKKGGSIVYVSS 121
Y++ G ++ SS
Sbjct: 122 YLKATPGARVINTSS 136
>gnl|CDD|237099 PRK12428, PRK12428, 3-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 241
Score = 33.4 bits (77), Expect = 0.026
Identities = 12/25 (48%), Positives = 17/25 (68%), Gaps = 2/25 (8%)
Query: 100 LTQEVLPYMRKKKGGSIVYVSSIGG 124
LT+ +LP M GG+IV V+S+ G
Sbjct: 78 LTEALLPRMAP--GGAIVNVASLAG 100
>gnl|CDD|181929 PRK09526, lacI, lac repressor; Reviewed.
Length = 342
Score = 33.0 bits (76), Expect = 0.034
Identities = 27/92 (29%), Positives = 40/92 (43%), Gaps = 10/92 (10%)
Query: 4 ATRLVGK----VAVITAS-----TEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQ 54
A +L GK + + T S I AI R G SVVIS + S V +
Sbjct: 55 AQQLAGKQSLTIGLATTSLALHAPSQIAAAIKSRADQLGYSVVISMVERSGVEACQAAVN 114
Query: 55 KEGHQNVSGVVCHVA-NTDERQKLFEHCSEVV 85
+ Q VSGV+ +V + +K+ C++V
Sbjct: 115 ELLAQRVSGVIINVPLEDADAEKIVADCADVP 146
>gnl|CDD|227315 COG4982, COG4982, 3-oxoacyl-[acyl-carrier protein].
Length = 866
Score = 33.3 bits (76), Expect = 0.036
Identities = 15/43 (34%), Positives = 25/43 (58%), Gaps = 4/43 (9%)
Query: 9 GKVAVIT-ASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAV 50
KVA++T AS I A+ RL A GA+V+ ++ S +++
Sbjct: 396 DKVALVTGASKGSIAAAVVARLLAGGATVIATT---SRLSEER 435
>gnl|CDD|180669 PRK06720, PRK06720, hypothetical protein; Provisional.
Length = 169
Score = 32.6 bits (74), Expect = 0.045
Identities = 21/75 (28%), Positives = 37/75 (49%), Gaps = 5/75 (6%)
Query: 6 RLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
+L GKVA++T GIG A L+ +GA V+++ + + VE + N+ G
Sbjct: 13 KLAGKVAIVTGGGIGIGRNTALLLAKQGAKVIVTDIDQESGQATVEEI-----TNLGGEA 67
Query: 66 CHVANTDERQKLFEH 80
V+ E+Q ++
Sbjct: 68 LFVSYDMEKQGDWQR 82
>gnl|CDD|187668 cd09808, DHRS-12_like_SDR_c-like, human dehydrogenase/reductase SDR
family member (DHRS)-12/FLJ13639-like, classical
(c)-like SDRs. Classical SDR-like subgroup containing
human DHRS-12/FLJ13639, the 36K protein of zebrafish CNS
myelin, and related proteins. DHRS-12/FLJ13639 is
expressed in neurons and oligodendrocytes in the human
cerebral cortex. Proteins in this subgroup share the
glycine-rich NAD-binding motif of the classical SDRs,
have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 255
Score = 32.6 bits (74), Expect = 0.051
Identities = 35/170 (20%), Positives = 72/170 (42%), Gaps = 32/170 (18%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE-GHQNVSGVVCH 67
G+ +IT + GIG A A ++ G +V + R ++ +A + ++ E G+QN + H
Sbjct: 1 GRSFLITGANSGIGKAAALAIAKRGGTVHMVCRNQTRAEEARKEIETESGNQN---IFLH 57
Query: 68 VANTDERQKLFE--------------------------HCSEVVWDKIFDVNLKSSFLLT 101
+ + + ++++E +E +K F N +++LT
Sbjct: 58 IVDMSDPKQVWEFVEEFKEEGKKLHVLINNAGCMVNKRELTEDGLEKNFATNTLGTYILT 117
Query: 102 QEVLPYMRKKKGGSIVYVSSIGGFKQ-FKVSILILRPATPYQYKLSYQQE 150
++P + K++ ++ VSS G Q + L T + + Y Q
Sbjct: 118 THLIPVLEKEEDPRVITVSSGGMLVQKLNTNNLQSE-RTAFDGTMVYAQN 166
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 32.5 bits (74), Expect = 0.051
Identities = 31/138 (22%), Positives = 55/138 (39%), Gaps = 29/138 (21%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ------NVSG 63
V +IT + GIG A+A A G V ++RK + VE L G N
Sbjct: 2 PVVLITGCSSGIGRALADAFKAAGYEVWATARKAED----VEALAAAGFTAVQLDVNDGA 57
Query: 64 VVCHVANTDERQK-----------------LFEHCSEVVWDKIFDVNLKSSFLLTQEVLP 106
+ +A E + L + E + + F+ N+ + +T+ + P
Sbjct: 58 ALARLAEELEAEHGGLDVLINNAGYGAMGPLLDGGVEAM-RRQFETNVFAVVGVTRALFP 116
Query: 107 YMRKKKGGSIVYVSSIGG 124
+R+ + G +V + S+ G
Sbjct: 117 LLRRSR-GLVVNIGSVSG 133
>gnl|CDD|235776 PRK06300, PRK06300, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 299
Score = 32.5 bits (74), Expect = 0.058
Identities = 13/36 (36%), Positives = 22/36 (61%), Gaps = 2/36 (5%)
Query: 7 LVGKVAVIT--ASTEGIGFAIAKRLSAEGASVVISS 40
L GK+A I +G G+ IAK L+ GA++++ +
Sbjct: 6 LTGKIAFIAGIGDDQGYGWGIAKALAEAGATILVGT 41
>gnl|CDD|180838 PRK07102, PRK07102, short chain dehydrogenase; Provisional.
Length = 243
Score = 32.2 bits (74), Expect = 0.061
Identities = 27/137 (19%), Positives = 50/137 (36%), Gaps = 23/137 (16%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
K+ +I A T I A A+R +A GA + +++R + + + L+ G VS +
Sbjct: 3 KILIIGA-TSDIARACARRYAAAGARLYLAARDVERLERLADDLRARGAVAVSTHELDIL 61
Query: 70 NTDERQKLFEHCSE----VV---------------WD---KIFDVNLKSSFLLTQEVLPY 107
+T + V+ + F N + L +
Sbjct: 62 DTASHAAFLDSLPALPDIVLIAVGTLGDQAACEADPALALREFRTNFEGPIALLTLLANR 121
Query: 108 MRKKKGGSIVYVSSIGG 124
+ G+IV +SS+ G
Sbjct: 122 FEARGSGTIVGISSVAG 138
>gnl|CDD|187636 cd08931, SDR_c9, classical (c) SDR, subgroup 9. This subgroup has
the canonical active site tetrad and NAD-binding motif
of the classical SDRs. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 227
Score = 32.4 bits (74), Expect = 0.064
Identities = 26/137 (18%), Positives = 42/137 (30%), Gaps = 29/137 (21%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTD- 72
IT + GIG A + G V + E + L G +NV V +
Sbjct: 5 ITGAASGIGRETALLFARNGWFVGLYDIDEDGLAALAAEL---GAENVVAGALDVTDRAA 61
Query: 73 -----------ERQKL--------------FEHCSEVVWDKIFDVNLKSSFLLTQEVLPY 107
+L FE D++ D+N+K LPY
Sbjct: 62 WAAALADFAAATGGRLDALFNNAGVGRGGPFEDVPLAAHDRMVDINVKGVLNGAYAALPY 121
Query: 108 MRKKKGGSIVYVSSIGG 124
++ G ++ +S
Sbjct: 122 LKATPGARVINTASSSA 138
>gnl|CDD|181260 PRK08159, PRK08159, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 272
Score = 32.0 bits (73), Expect = 0.082
Identities = 27/92 (29%), Positives = 44/92 (47%), Gaps = 6/92 (6%)
Query: 1 MFKATRLV-GKVAVI--TASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
M +A+ L+ GK +I A+ I + IAK A GA + + + ++ + K VE L E
Sbjct: 1 MAQASGLMAGKRGLILGVANNRSIAWGIAKACRAAGAELAFTYQGDA-LKKRVEPLAAEL 59
Query: 58 HQNVSGVVCHVANTDERQKLFEHCSEVVWDKI 89
V+G C V + +FE + W K+
Sbjct: 60 GAFVAG-HCDVTDEASIDAVFETLEK-KWGKL 89
>gnl|CDD|178331 PLN02730, PLN02730, enoyl-[acyl-carrier-protein] reductase.
Length = 303
Score = 32.1 bits (73), Expect = 0.088
Identities = 16/34 (47%), Positives = 21/34 (61%), Gaps = 2/34 (5%)
Query: 7 LVGKVAVIT--ASTEGIGFAIAKRLSAEGASVVI 38
L GK A I A G G+AIAK L+A GA +++
Sbjct: 7 LRGKRAFIAGVADDNGYGWAIAKALAAAGAEILV 40
>gnl|CDD|236541 PRK09496, trkA, potassium transporter peripheral membrane
component; Reviewed.
Length = 453
Score = 32.0 bits (74), Expect = 0.093
Identities = 12/52 (23%), Positives = 24/52 (46%), Gaps = 6/52 (11%)
Query: 21 IGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTD 72
+G+ +A+ LS E V + E + + + L +V VV + ++ D
Sbjct: 11 VGYTLAENLSGENNDVTVIDTDEERLRRLQDRL------DVRTVVGNGSSPD 56
>gnl|CDD|180949 PRK07370, PRK07370, enoyl-(acyl carrier protein) reductase;
Validated.
Length = 258
Score = 31.6 bits (72), Expect = 0.12
Identities = 37/157 (23%), Positives = 62/157 (39%), Gaps = 44/157 (28%)
Query: 7 LVGKVAVIT--ASTEGIGFAIAKRLSAEGASVVIS------SRKESNVNKAVETLQKEGH 58
L GK A++T A+ I + IA++L A GA + I+ R E V + E L
Sbjct: 4 LTGKKALVTGIANNRSIAWGIAQQLHAAGAELGITYLPDEKGRFEKKVRELTEPLNPSLF 63
Query: 59 QNVSGVVCHVANTDERQKLFE-------------HC----------------SEVVWDKI 89
+ C V + + ++ FE HC S + +
Sbjct: 64 -----LPCDVQDDAQIEETFETIKQKWGKLDILVHCLAFAGKEELIGDFSATSREGFARA 118
Query: 90 FDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFK 126
+++ S L + P M +GGSIV ++ +GG +
Sbjct: 119 LEISAYSLAPLCKAAKPLMS--EGGSIVTLTYLGGVR 153
>gnl|CDD|233570 TIGR01777, yfcH, TIGR01777 family protein. This model represents
a clade of proteins of unknown function including the
E. coli yfcH protein [Hypothetical proteins,
Conserved].
Length = 291
Score = 31.5 bits (72), Expect = 0.13
Identities = 12/36 (33%), Positives = 17/36 (47%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVN 47
+IT T IG A+ +RL+ G V I +R
Sbjct: 1 ILITGGTGFIGRALTQRLTKRGHEVTILTRSPPPGA 36
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 31.4 bits (72), Expect = 0.14
Identities = 31/146 (21%), Positives = 50/146 (34%), Gaps = 37/146 (25%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGAS-VVISSRKESNVNKA---VETLQKEGHQNVSGV 64
GKV ++T + GIG A ++L A GA+ V ++R +V V LQ +
Sbjct: 6 GKVVLVTGANRGIGRAFVEQLLARGAAKVYAAARDPESVTDLGPRVVPLQLD-------- 57
Query: 65 VCHVANTDERQKLFEHCSEV----------------------VWDKIFDVNLKSSFLLTQ 102
V + E S+V + N + +
Sbjct: 58 ---VTDPASVAAAAEAASDVTILVNNAGIFRTGSLLLEGDEDALRAEMETNYFGPLAMAR 114
Query: 103 EVLPYMRKKKGGSIVYVSSIGGFKQF 128
P + GG+IV V S+ + F
Sbjct: 115 AFAPVLAANGGGAIVNVLSVLSWVNF 140
>gnl|CDD|224996 COG2085, COG2085, Predicted dinucleotide-binding enzymes [General
function prediction only].
Length = 211
Score = 31.2 bits (71), Expect = 0.16
Identities = 12/36 (33%), Positives = 17/36 (47%), Gaps = 3/36 (8%)
Query: 21 IGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKE 56
IG A+A RL+ G V+I S + KA+
Sbjct: 12 IGSALALRLAKAGHEVIIGSSRGP---KALAAAAAA 44
>gnl|CDD|180387 PRK06078, PRK06078, pyrimidine-nucleoside phosphorylase; Reviewed.
Length = 434
Score = 30.8 bits (70), Expect = 0.21
Identities = 16/64 (25%), Positives = 32/64 (50%), Gaps = 17/64 (26%)
Query: 8 VGK--VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVV 65
VG+ +AVI+ ++ +G AI L V +A++TLQ +G ++++ +V
Sbjct: 228 VGRNTMAVISDMSQPLGRAIGNALE---------------VLEAIDTLQGKGPKDLTELV 272
Query: 66 CHVA 69
+
Sbjct: 273 LTLG 276
>gnl|CDD|219957 pfam08659, KR, KR domain. This enzymatic domain is part of
bacterial polyketide synthases and catalyzes the first
step in the reductive modification of the beta-carbonyl
centres in the growing polyketide chain. It uses NADPH
to reduce the keto group to a hydroxy group.
Length = 181
Score = 30.6 bits (70), Expect = 0.21
Identities = 19/75 (25%), Positives = 36/75 (48%), Gaps = 5/75 (6%)
Query: 13 VITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKA---VETLQKEGHQNVSGVVCHV 68
++T G+G +A+ L+ GA +V+ SR + +A + L+ G + V+ V C V
Sbjct: 4 LVTGGLGGLGLELARWLAERGARHLVLLSRSGAPDPEAEALLAELEARGAE-VTVVACDV 62
Query: 69 ANTDERQKLFEHCSE 83
++ D + L
Sbjct: 63 SDRDAVRALLAEIRA 77
>gnl|CDD|187553 cd05242, SDR_a8, atypical (a) SDRs, subgroup 8. This subgroup
contains atypical SDRs of unknown function. Proteins in
this subgroup have a glycine-rich NAD(P)-binding motif
consensus that resembles that of the extended SDRs,
(GXXGXXG or GGXGXXG), but lacks the characteristic
active site residues of the SDRs. A Cys often replaces
the usual Lys of the YXXXK active site motif, while the
upstream Ser is generally present and Arg replaces the
usual Asn. Atypical SDRs generally lack the catalytic
residues characteristic of the SDRs, and their
glycine-rich NAD(P)-binding motif is often different
from the forms normally seen in classical or extended
SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, and typically have a TGXXGXXG cofactor
binding motif. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 296
Score = 30.7 bits (70), Expect = 0.23
Identities = 16/39 (41%), Positives = 21/39 (53%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVE 51
VIT T IG A+ +RL+A G VV+ SR+ E
Sbjct: 3 VITGGTGFIGRALTRRLTAAGHEVVVLSRRPGKAEGLAE 41
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 30.5 bits (69), Expect = 0.23
Identities = 15/49 (30%), Positives = 24/49 (48%), Gaps = 1/49 (2%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVIS-SRKESNVNKAVETLQKE 56
GK VI+ T GIG AI + G ++ + + NK E L+++
Sbjct: 8 GKTLVISGGTRGIGKAIVYEFAQSGVNIAFTYNSNVEEANKIAEDLEQK 56
>gnl|CDD|235041 PRK02472, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 447
Score = 30.6 bits (70), Expect = 0.30
Identities = 14/42 (33%), Positives = 23/42 (54%)
Query: 22 GFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
G+A AK L GA+V ++ K + N + L +EG + + G
Sbjct: 17 GYAAAKLLHKLGANVTVNDGKPFSENPEAQELLEEGIKVICG 58
>gnl|CDD|224015 COG1090, COG1090, Predicted nucleoside-diphosphate sugar
epimerase [General function prediction only].
Length = 297
Score = 30.3 bits (69), Expect = 0.32
Identities = 15/60 (25%), Positives = 22/60 (36%), Gaps = 7/60 (11%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVN-------KAVETLQKEGHQNVSGVV 65
+IT T IG A+ RL G V I +R+ + E L + V+
Sbjct: 2 LITGGTGLIGRALTARLRKGGHQVTILTRRPPKASQNLHPNVTLWEGLADALTLGIDAVI 61
>gnl|CDD|222146 pfam13460, NAD_binding_10, NADH(P)-binding.
Length = 182
Score = 29.6 bits (67), Expect = 0.39
Identities = 18/63 (28%), Positives = 23/63 (36%), Gaps = 8/63 (12%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVAN 70
+AVI A T G + K L A G V SR S G V + +A+
Sbjct: 1 IAVIGA-TGKTGRRLVKELLARGHQVTALSRNPS-------KAPAPGVTPVQKDLFDLAD 52
Query: 71 TDE 73
E
Sbjct: 53 LAE 55
>gnl|CDD|223643 COG0569, TrkA, K+ transport systems, NAD-binding component
[Inorganic ion transport and metabolism].
Length = 225
Score = 29.9 bits (68), Expect = 0.40
Identities = 14/40 (35%), Positives = 23/40 (57%), Gaps = 2/40 (5%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKA 49
K+ +I A +G ++A+ LS EG +VV+ R E V +
Sbjct: 2 KIIIIGAGR--VGRSVARELSEEGHNVVLIDRDEERVEEF 39
>gnl|CDD|233635 TIGR01915, npdG, NADPH-dependent F420 reductase. This model
represents a subset of a parent family described by
pfam03807. Unlike the parent family, members of this
family are found only in species with evidence of
coenzyme F420. All members of this family are believed
to act as NADPH-dependent F420 reductase [Energy
metabolism, Electron transport].
Length = 219
Score = 29.8 bits (67), Expect = 0.42
Identities = 21/67 (31%), Positives = 29/67 (43%), Gaps = 8/67 (11%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRK----ESNVNKAVETLQKEGHQNVSGVV 65
K+AV+ T G +A RL+ G ++I SR E KA+E L GH V
Sbjct: 2 KIAVL-GGTGDQGKGLALRLAKAGNKIIIGSRDLEKAEEAAAKALEEL---GHGGSDIKV 57
Query: 66 CHVANTD 72
N +
Sbjct: 58 TGADNAE 64
>gnl|CDD|212494 cd08946, SDR_e, extended (e) SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 200
Score = 29.6 bits (67), Expect = 0.50
Identities = 26/125 (20%), Positives = 39/125 (31%), Gaps = 33/125 (26%)
Query: 21 IGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTDERQKLFEH 80
IG + +RL G VV+ R + V+ A V + +
Sbjct: 10 IGSHLVRRLLERGHEVVVIDRLDVVVHLAALV--------------GVPASWDNPDED-- 53
Query: 81 CSEVVWDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSI---GGFKQFKVSIL-ILR 136
F+ N+ + T +L RK VY SS G + R
Sbjct: 54 ---------FETNV----VGTLNLLEAARKAGVKRFVYASSASVYGSPEGLPEEEETPPR 100
Query: 137 PATPY 141
P +PY
Sbjct: 101 PLSPY 105
>gnl|CDD|180796 PRK07023, PRK07023, short chain dehydrogenase; Provisional.
Length = 243
Score = 29.6 bits (67), Expect = 0.55
Identities = 10/30 (33%), Positives = 20/30 (66%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSR 41
A++T + G+G A+A++L G +V+ +R
Sbjct: 4 AIVTGHSRGLGAALAEQLLQPGIAVLGVAR 33
>gnl|CDD|187656 cd08953, KR_2_SDR_x, ketoreductase (KR), subgroup 2, complex (x)
SDRs. Ketoreductase, a module of the multidomain
polyketide synthase (PKS), has 2 subdomains, each
corresponding to a SDR family monomer. The C-terminal
subdomain catalyzes the NADPH-dependent reduction of the
beta-carbonyl of a polyketide to a hydroxyl group, a
step in the biosynthesis of polyketides, such as
erythromycin. The N-terminal subdomain, an interdomain
linker, is a truncated Rossmann fold which acts to
stabilizes the catalytic subdomain. Unlike typical SDRs,
the isolated domain does not oligomerize but is composed
of 2 subdomains, each resembling an SDR monomer. The
active site resembles that of typical SDRs, except that
the usual positions of the catalytic Asn and Tyr are
swapped, so that the canonical YXXXK motif changes to
YXXXN. Modular PKSs are multifunctional structures in
which the makeup recapitulates that found in (and may
have evolved from) FAS. Polyketide synthesis also
proceeds via the addition of 2-carbon units as in fatty
acid synthesis. The complex SDR NADP-binding motif,
GGXGXXG, is often present, but is not strictly conserved
in each instance of the module. This subfamily includes
both KR domains of the Bacillus subtilis Pks J,-L, and
PksM, and all three KR domains of PksN, components of
the megacomplex bacillaene synthase, which synthesizes
the antibiotic bacillaene. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 436
Score = 29.6 bits (67), Expect = 0.57
Identities = 13/34 (38%), Positives = 19/34 (55%), Gaps = 1/34 (2%)
Query: 9 GKVAVITASTEGIGFAIAKRL-SAEGASVVISSR 41
G V ++T GIG A+A+ L GA +V+ R
Sbjct: 205 GGVYLVTGGAGGIGRALARALARRYGARLVLLGR 238
>gnl|CDD|240636 cd12159, 2-Hacid_dh_2, Putative D-isomer specific 2-hydroxyacid
dehydrogenases. 2-Hydroxyacid dehydrogenases catalyze
the conversion of a wide variety of D-2-hydroxy acids to
their corresponding keto acids. The general mechanism is
(R)-lactate + acceptor to pyruvate + reduced acceptor.
Formate/glycerate and related dehydrogenases of the
D-specific 2-hydroxyacid dehydrogenase superfamily
include groups such as formate dehydrogenase, glycerate
dehydrogenase, L-alanine dehydrogenase, and
S-adenosylhomocysteine hydrolase. Despite often low
sequence identity, these proteins typically have a
characteristic arrangement of 2 similar subdomains of
the alpha/beta Rossmann fold NAD+ binding form. The NAD+
binding domain is inserted within the linear sequence of
the mostly N-terminal catalytic domain, which has a
similar domain structure to the internal NAD binding
domain. Structurally, these domains are connected by
extended alpha helices and create a cleft in which NAD
is bound, primarily to the C-terminal portion of the 2nd
(internal) domain. Some related proteins have similar
structural subdomain but with a tandem arrangement of
the catalytic and NAD-binding subdomains in the linear
sequence. While many members of this family are dimeric,
alanine DH is hexameric and phosphoglycerate DH is
tetrameric.
Length = 303
Score = 29.5 bits (67), Expect = 0.58
Identities = 19/52 (36%), Positives = 26/52 (50%), Gaps = 3/52 (5%)
Query: 3 KATRLVGK-VAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETL 53
T L G VA++ A GIG A+ L+ GA V+ +R V A ET+
Sbjct: 119 LVTLLRGSTVAIVGAG--GIGRALIPLLAPFGAKVIAVNRSGRPVEGADETV 168
>gnl|CDD|216949 pfam02254, TrkA_N, TrkA-N domain. This domain is found in a wide
variety of proteins. These protein include potassium
channels, phosphoesterases, and various other
transporters. This domain binds to NAD.
Length = 116
Score = 28.7 bits (65), Expect = 0.60
Identities = 14/67 (20%), Positives = 24/67 (35%), Gaps = 15/67 (22%)
Query: 21 IGFAIAKRLSAEGASVVISSRKESNVNKA--------------VETLQKEGHQNVSGVVC 66
+G ++A+ L G VV+ + V + E L++ G + VV
Sbjct: 9 VGRSLAEELREGGPDVVVIDKDPERVEELREEGVPVVVGDATDEEVLEEAGIEEADAVVA 68
Query: 67 HVANTDE 73
DE
Sbjct: 69 -ATGDDE 74
>gnl|CDD|184511 PRK14106, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 450
Score = 29.6 bits (67), Expect = 0.69
Identities = 20/55 (36%), Positives = 32/55 (58%), Gaps = 3/55 (5%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESN-VNKAVETLQKEGHQNVSG 63
KV V+ A G+ A+AK L GA V+++ KE + + +A+E L + G + V G
Sbjct: 7 KVLVVGAGVSGL--ALAKFLKKLGAKVILTDEKEEDQLKEALEELGELGIELVLG 59
>gnl|CDD|187582 cd05274, KR_FAS_SDR_x, ketoreductase (KR) and fatty acid synthase
(FAS), complex (x) SDRs. Ketoreductase, a module of the
multidomain polyketide synthase (PKS), has 2 subdomains,
each corresponding to a SDR family monomer. The
C-terminal subdomain catalyzes the NADPH-dependent
reduction of the beta-carbonyl of a polyketide to a
hydroxyl group, a step in the biosynthesis of
polyketides, such as erythromycin. The N-terminal
subdomain, an interdomain linker, is a truncated
Rossmann fold which acts to stabilizes the catalytic
subdomain. Unlike typical SDRs, the isolated domain does
not oligomerize but is composed of 2 subdomains, each
resembling an SDR monomer. The active site resembles
that of typical SDRs, except that the usual positions of
the catalytic Asn and Tyr are swapped, so that the
canonical YXXXK motif changes to YXXXN. Modular PKSs are
multifunctional structures in which the makeup
recapitulates that found in (and may have evolved from)
FAS. In some instances, such as porcine FAS, an enoyl
reductase (ER) module is inserted between the
sub-domains. Fatty acid synthesis occurs via the
stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consist of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthase
uses a dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-KR, forming beta-hydroxyacyl-ACP, which is in turn
dehydrated by dehydratase to a beta-enoyl intermediate,
which is reduced by NADP-dependent beta-ER. Polyketide
synthesis also proceeds via the addition of 2-carbon
units as in fatty acid synthesis. The complex SDR
NADP-binding motif, GGXGXXG, is often present, but is
not strictly conserved in each instance of the module.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 375
Score = 29.3 bits (66), Expect = 0.83
Identities = 12/31 (38%), Positives = 20/31 (64%), Gaps = 1/31 (3%)
Query: 13 VITASTEGIGFAIAKRLSAEGA-SVVISSRK 42
+IT G+G +A+ L+A GA +V+ SR+
Sbjct: 154 LITGGLGGLGLLVARWLAARGARHLVLLSRR 184
>gnl|CDD|187578 cd05269, TMR_SDR_a, triphenylmethane reductase (TMR)-like
proteins, NMRa-like, atypical (a) SDRs. TMR is an
atypical NADP-binding protein of the SDR family. It
lacks the active site residues of the SDRs but has a
glycine rich NAD(P)-binding motif that matches the
extended SDRs. Proteins in this subgroup however, are
more similar in length to the classical SDRs. TMR was
identified as a reducer of triphenylmethane dyes,
important environmental pollutants. This subgroup also
includes Escherichia coli NADPH-dependent quinine
oxidoreductase (QOR2), which catalyzes two-electron
reduction of quinone; but is unlikely to play a major
role in protecting against quinone cytotoxicity.
Atypical SDRs are distinct from classical SDRs.
Atypical SDRs include biliverdin IX beta reductase
(BVR-B,aka flavin reductase), NMRa (a negative
transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, and typically have a TGXXGXXG cofactor
binding motif. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 272
Score = 29.2 bits (66), Expect = 0.83
Identities = 11/33 (33%), Positives = 17/33 (51%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNV 46
+T +T +G A+ + L A+ ASVV R
Sbjct: 3 VTGATGKLGTAVVELLLAKVASVVALVRNPEKA 35
>gnl|CDD|202773 pfam03807, F420_oxidored, NADP oxidoreductase coenzyme
F420-dependent.
Length = 93
Score = 27.9 bits (63), Expect = 0.87
Identities = 16/47 (34%), Positives = 26/47 (55%), Gaps = 6/47 (12%)
Query: 10 KVAVITASTEG-IGFAIAKRLSAEGASVVISSRKESNVNKAVETLQK 55
K+ +I A G +G A+A+ L+A G VVI++ N KA ++
Sbjct: 1 KIGIIGA---GNMGEALARGLAAAGHEVVIANS--RNPEKAAALAEE 42
>gnl|CDD|212496 cd11730, Tthb094_like_SDR_c, Tthb094 and related proteins,
classical (c) SDRs. Tthb094 from Thermus Thermophilus
is a classical SDR which binds NADP. Members of this
subgroup contain the YXXXK active site characteristic of
SDRs. Also, an upstream Asn residue of the canonical
catalytic tetrad is partially conserved in this subgroup
of proteins of undetermined function. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 206
Score = 28.6 bits (64), Expect = 0.99
Identities = 25/129 (19%), Positives = 44/129 (34%), Gaps = 29/129 (22%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANT 71
A+I +T GIG A+A+ L+ G +++S R + + VA
Sbjct: 1 ALILGATGGIGRALARALAGRGWRLLLSGRDAGALAGLAAEV------GALARPADVAAE 54
Query: 72 DERQKLFEHCSEV---------------------VWDKIFDVNLKSSFLLTQEVLPYMRK 110
E L + + W +I D NL + L+ + L
Sbjct: 55 LEVWALAQELGPLDLLVYAAGAILGKPLARTKPAAWRRILDANLTGAALVLKHALA--LL 112
Query: 111 KKGGSIVYV 119
G +V++
Sbjct: 113 AAGARLVFL 121
>gnl|CDD|223980 COG1052, LdhA, Lactate dehydrogenase and related dehydrogenases
[Energy production and conversion / Coenzyme metabolism
/ General function prediction only].
Length = 324
Score = 28.7 bits (65), Expect = 1.00
Identities = 9/24 (37%), Positives = 12/24 (50%)
Query: 20 GIGFAIAKRLSAEGASVVISSRKE 43
IG A+A+RL G V+ R
Sbjct: 156 RIGQAVARRLKGFGMKVLYYDRSP 179
>gnl|CDD|235059 PRK02705, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 459
Score = 28.7 bits (65), Expect = 1.1
Identities = 14/37 (37%), Positives = 23/37 (62%), Gaps = 1/37 (2%)
Query: 22 GFAIAKRLSAEGASVVISSRKES-NVNKAVETLQKEG 57
G A A+ L A+G VV+S R +S + + + L++EG
Sbjct: 12 GIAAARLLKAQGWEVVVSDRNDSPELLERQQELEQEG 48
>gnl|CDD|240633 cd12156, HPPR, Hydroxy(phenyl)pyruvate Reductase, D-isomer-specific
2-hydroxyacid-related dehydrogenase.
Hydroxy(phenyl)pyruvate reductase (HPPR) catalyzes the
NADP-dependent reduction of hydroxyphenylpyruvates,
hydroxypyruvate, or pyruvate to its respective lactate.
HPPR acts as a dimer and is related to D-isomer-specific
2-hydroxyacid dehydrogenases, a superfamily that
includes groups such as formate dehydrogenase, glycerate
dehydrogenase, L-alanine dehydrogenase, and
S-Adenosylhomocysteine Hydrolase. Despite often low
sequence identity, these proteins typically have a
characteristic arrangement of 2 similar subdomains of
the alpha/beta Rossmann fold NAD+ binding form. The NAD+
binding domain is inserted within the linear sequence of
the mostly N-terminal catalytic domain, which has a
similar domain structure to the internal NAD binding
domain. Structurally, these domains are connected by
extended alpha helices and create a cleft in which NAD
is bound, primarily to the C-terminal portion of the 2nd
(internal) domain. Some related proteins have similar
structural subdomain but with a tandem arrangement of
the catalytic and NAD-binding subdomains in the linear
sequence. While many members of this family are dimeric,
alanine DH is hexameric and phosphoglycerate DH is
tetrameric.
Length = 301
Score = 28.6 bits (65), Expect = 1.2
Identities = 10/23 (43%), Positives = 13/23 (56%)
Query: 21 IGFAIAKRLSAEGASVVISSRKE 43
IG AIA+RL A G + R+
Sbjct: 152 IGRAIARRLEAFGMEIAYHGRRP 174
>gnl|CDD|224014 COG1089, Gmd, GDP-D-mannose dehydratase [Cell envelope
biogenesis, outer membrane].
Length = 345
Score = 28.5 bits (64), Expect = 1.4
Identities = 18/52 (34%), Positives = 26/52 (50%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQN 60
GKVA+IT T G +A+ L +G V R+ S+ N L ++ H N
Sbjct: 2 GKVALITGITGQDGSYLAELLLEKGYEVHGIKRRSSSFNTPRIHLYEDPHLN 53
>gnl|CDD|187573 cd05263, MupV_like_SDR_e, Pseudomonas fluorescens MupV-like,
extended (e) SDRs. This subgroup of extended SDR family
domains have the characteristic active site tetrad and a
well-conserved NAD(P)-binding motif. This subgroup is
not well characterized, its members are annotated as
having a variety of putative functions. One
characterized member is Pseudomonas fluorescens MupV a
protein involved in the biosynthesis of Mupirocin, a
polyketide-derived antibiotic. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet) core region typical of all SDRs, extended
SDRs have a less conserved C-terminal extension of
approximately 100 amino acids. Extended SDRs are a
diverse collection of proteins, and include isomerases,
epimerases, oxidoreductases, and lyases; they typically
have a TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold, an NAD(P)(H)-binding region, and a structurally
diverse C-terminal region. Sequence identity between
different SDR enzymes is typically in the 15-30% range;
they catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 293
Score = 28.1 bits (63), Expect = 1.6
Identities = 25/128 (19%), Positives = 44/128 (34%), Gaps = 22/128 (17%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNV--NKAVETLQKEGHQN--VSGVVC--- 66
+T T +G + KRL G V++ R ES ++ +E E + + G +
Sbjct: 3 VTGGTGFLGRHLVKRLLENGFKVLVLVRSESLGEAHERIEEAGLEADRVRVLEGDLTQPN 62
Query: 67 ---HVANTDERQK---LFEHCSEVV-----WDKIFDVNLKSSFLLTQEVLPYMRKKKGGS 115
A + E HC+ + + N+ T+ VL +
Sbjct: 63 LGLSAAASRELAGKVDHVIHCAASYDFQAPNEDAWRTNIDG----TEHVLELAARLDIQR 118
Query: 116 IVYVSSIG 123
YVS+
Sbjct: 119 FHYVSTAY 126
>gnl|CDD|224995 COG2084, MmsB, 3-hydroxyisobutyrate dehydrogenase and related
beta-hydroxyacid dehydrogenases [Lipid metabolism].
Length = 286
Score = 28.3 bits (64), Expect = 1.7
Identities = 16/49 (32%), Positives = 20/49 (40%), Gaps = 7/49 (14%)
Query: 10 KVAVITASTEGI-GFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
K+A I GI G +A L G V + +R KA E L G
Sbjct: 2 KIAFIGL---GIMGSPMAANLLKAGHEVTVYNRTPE---KAAELLAAAG 44
>gnl|CDD|173952 cd08193, HVD, 5-hydroxyvalerate dehydrogenase (HVD) catalyzes the
oxidation of 5-hydroxyvalerate to 5-oxovalerate with
NAD+ as cofactor. 5-hydroxyvalerate dehydrogenase
(HVD) is an iron-containing (type III) NAD-dependent
alcohol dehydrogenase. It plays a role in the
cyclopentanol metabolism biochemical pathway. It
catalyzes the oxidation of 5-hydroxyvalerate to
5-oxovalerate with NAD+ as cofactor. This cyclopentanol
(cpn) degradation pathway is present in some bacteria
which can use cyclopentanol as sole carbon source. In
Comamonas sp. strain NCIMB 9872, this enzyme is encoded
by the CpnD gene.
Length = 376
Score = 28.3 bits (64), Expect = 1.7
Identities = 17/69 (24%), Positives = 23/69 (33%), Gaps = 8/69 (11%)
Query: 4 ATRLVGKVAVIT-ASTEGIGFA--IAKRLSAEGASVVISSR-----KESNVNKAVETLQK 55
A +V V+T G + L A G V + E+ V AVE +
Sbjct: 22 AALGAKRVLVVTDPGILKAGLIDPLLASLEAAGIEVTVFDDVEADPPEAVVEAAVEAARA 81
Query: 56 EGHQNVSGV 64
G V G
Sbjct: 82 AGADGVIGF 90
>gnl|CDD|224371 COG1454, EutG, Alcohol dehydrogenase, class IV [Energy production
and conversion].
Length = 377
Score = 28.3 bits (64), Expect = 1.7
Identities = 8/71 (11%), Positives = 18/71 (25%), Gaps = 8/71 (11%)
Query: 2 FKATRLVGKVAVIT-ASTEGIGFA--IAKRLSAEGASVVISSR-----KESNVNKAVETL 53
+ ++T +G + L A G + V E
Sbjct: 23 EVKRLGAKRALIVTDRGLAKLGLLDKVLDSLDAAGIEYEVFDEVEPEPTIETVEAGAEVA 82
Query: 54 QKEGHQNVSGV 64
++ G + +
Sbjct: 83 REFGPDTIIAL 93
>gnl|CDD|176222 cd08261, Zn_ADH7, Alcohol dehydrogenases of the MDR family. This
group contains members identified as related to
zinc-dependent alcohol dehydrogenase and other members
of the MDR family. The medium chain
dehydrogenases/reductase (MDR)/zinc-dependent alcohol
dehydrogenase-like family, which contains the
zinc-dependent alcohol dehydrogenase (ADH-Zn) and
related proteins, is a diverse group of proteins related
to the first identified member, class I mammalian ADH.
MDRs display a broad range of activities and are
distinguished from the smaller short chain
dehydrogenases (~ 250 amino acids vs. the ~ 350 amino
acids of the MDR). The MDR proteins have 2 domains: a
C-terminal NAD(P)-binding Rossmann fold domain of a
beta-alpha form and an N-terminal catalytic domain with
distant homology to GroES. The MDR group includes
various activities, including the founding alcohol
dehydrogenase (ADH), quinone reductase, sorbitol
dehydrogenase, formaldehyde dehydrogenase, butanediol
DH, ketose reductase, cinnamyl reductase, and numerous
others. The zinc-dependent alcohol dehydrogenases (ADHs)
catalyze the NAD(P)(H)-dependent interconversion of
alcohols to aldehydes or ketones. Active site zinc has a
catalytic role, while structural zinc aids in stability.
ADH-like proteins typically form dimers (typically
higher plants, mammals) or tetramers (yeast, bacteria),
and generally have 2 tightly bound zinc atoms per
subunit. The active site zinc is coordinated by a
histidine, two cysteines, and a water molecule. The
second zinc seems to play a structural role, affects
subunit interactions, and is typically coordinated by 4
cysteines.
Length = 337
Score = 27.9 bits (63), Expect = 2.0
Identities = 23/112 (20%), Positives = 39/112 (34%), Gaps = 16/112 (14%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
V V+ A IG + + A GA V++ + + A E + +V
Sbjct: 162 TVLVVGAG--PIGLGVIQVAKARGARVIVVDIDDERLEFARELG-------ADDTI-NVG 211
Query: 70 NTDERQKLFEHCSEVVWDKIFD-VNLKSSFLLTQEVLPYMRKKKGGSIVYVS 120
+ D +L E D + D +S E++ GG +V V
Sbjct: 212 DEDVAARLRELTDGEGADVVIDATGNPASMEEAVELV-----AHGGRVVLVG 258
>gnl|CDD|223677 COG0604, Qor, NADPH:quinone reductase and related Zn-dependent
oxidoreductases [Energy production and conversion /
General function prediction only].
Length = 326
Score = 28.1 bits (63), Expect = 2.0
Identities = 23/128 (17%), Positives = 45/128 (35%), Gaps = 13/128 (10%)
Query: 9 GKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHV 68
G+ ++ + G+G A + A GA+VV + E V +
Sbjct: 143 GETVLVHGAAGGVGSAAIQLAKALGATVVAVVSSSEKLELLKELGADH--------VINY 194
Query: 69 ANTDERQKLFEHCSEVVWDKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVSSIGGFKQF 128
D +++ E D + D +F L + GG +V + ++ G
Sbjct: 195 REEDFVEQVRELTGGKGVDVVLDTVGGDTFA---ASLAALA--PGGRLVSIGALSGGPPV 249
Query: 129 KVSILILR 136
+++L L
Sbjct: 250 PLNLLPLL 257
>gnl|CDD|223774 COG0702, COG0702, Predicted nucleoside-diphosphate-sugar
epimerases [Cell envelope biogenesis, outer membrane /
Carbohydrate transport and metabolism].
Length = 275
Score = 27.9 bits (62), Expect = 2.0
Identities = 9/30 (30%), Positives = 16/30 (53%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRK 42
++T +T +G A+ + L A G V + R
Sbjct: 4 LVTGATGFVGGAVVRELLARGHEVRAAVRN 33
>gnl|CDD|223842 COG0771, MurD, UDP-N-acetylmuramoylalanine-D-glutamate ligase
[Cell envelope biogenesis, outer membrane].
Length = 448
Score = 28.0 bits (63), Expect = 2.0
Identities = 15/48 (31%), Positives = 22/48 (45%), Gaps = 2/48 (4%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
KV V+ G+ A A+ L GA V +S + + A + L EG
Sbjct: 9 KVLVLGLGKSGL--AAARFLLKLGAEVTVSDDRPAPEGLAAQPLLLEG 54
>gnl|CDD|236173 PRK08177, PRK08177, short chain dehydrogenase; Provisional.
Length = 225
Score = 27.7 bits (62), Expect = 2.1
Identities = 18/87 (20%), Positives = 33/87 (37%), Gaps = 13/87 (14%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
+ A+I ++ G+G + RL G V + R Q Q + GV
Sbjct: 2 RTALIIGASRGLGLGLVDRLLERGWQVTATVRGPQ---------QDTALQALPGVHIEKL 52
Query: 70 NTDERQ---KLFEHCSEVVWDKIFDVN 93
+ ++ +L + +D +F VN
Sbjct: 53 DMNDPASLDQLLQRLQGQRFDLLF-VN 78
>gnl|CDD|180269 PRK05808, PRK05808, 3-hydroxybutyryl-CoA dehydrogenase;
Validated.
Length = 282
Score = 28.0 bits (63), Expect = 2.1
Identities = 15/48 (31%), Positives = 26/48 (54%), Gaps = 2/48 (4%)
Query: 8 VGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQK 55
+ K+ VI A T G G IA+ + G VV+ ++ V++ + T+ K
Sbjct: 3 IQKIGVIGAGTMGNG--IAQVCAVAGYDVVMVDISDAAVDRGLATITK 48
>gnl|CDD|237968 PRK15447, PRK15447, putative protease; Provisional.
Length = 301
Score = 27.9 bits (63), Expect = 2.1
Identities = 8/18 (44%), Positives = 13/18 (72%)
Query: 23 FAIAKRLSAEGASVVISS 40
+A+RL+A G VV+S+
Sbjct: 51 LELAERLAAAGKEVVLST 68
>gnl|CDD|214833 smart00822, PKS_KR, This enzymatic domain is part of bacterial
polyketide synthases. It catalyses the first step in
the reductive modification of the beta-carbonyl centres
in the growing polyketide chain. It uses NADPH to
reduce the keto group to a hydroxy group.
Length = 180
Score = 27.4 bits (62), Expect = 2.2
Identities = 20/77 (25%), Positives = 32/77 (41%), Gaps = 3/77 (3%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETLQKEGHQ--NVSGVVC 66
+IT G+G A+A+ L+ GA +V+ SR + A L + V+ V C
Sbjct: 1 GTYLITGGLGGLGRALARWLAERGARRLVLLSRSGPDAPGAAALLAELEAAGARVTVVAC 60
Query: 67 HVANTDERQKLFEHCSE 83
VA+ D +
Sbjct: 61 DVADRDALAAVLAAIPA 77
>gnl|CDD|236124 PRK07889, PRK07889, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 256
Score = 27.6 bits (62), Expect = 2.5
Identities = 11/28 (39%), Positives = 17/28 (60%), Gaps = 2/28 (7%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISS 40
VIT S+ I F +A+ +GA VV++
Sbjct: 15 VITDSS--IAFHVARVAQEQGAEVVLTG 40
>gnl|CDD|181606 PRK08997, PRK08997, isocitrate dehydrogenase; Provisional.
Length = 334
Score = 27.8 bits (62), Expect = 2.7
Identities = 23/77 (29%), Positives = 37/77 (48%), Gaps = 10/77 (12%)
Query: 2 FKATRL-VGKVAVITA--STEGIGFAIAKRLSAEGASVVISS---RKESN--VNKAVETL 53
F T+ + +IT +TEG+ + +S +G + +S RK + V A E
Sbjct: 101 FPGTKARYDNIDIITVRENTEGMYSGEGQTVSEDGETAEATSIITRKGAERIVRFAYELA 160
Query: 54 QKEGHQNVSGVVCHVAN 70
+KEG + V+ V H AN
Sbjct: 161 RKEGRKKVTAV--HKAN 175
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 27.5 bits (61), Expect = 2.9
Identities = 11/34 (32%), Positives = 18/34 (52%)
Query: 11 VAVITASTEGIGFAIAKRLSAEGASVVISSRKES 44
+IT +T GIG +A + +G V+ R +S
Sbjct: 3 AVLITGATSGIGKQLALDYAKQGWQVIACGRNQS 36
>gnl|CDD|240626 cd05301, GDH, D-glycerate dehydrogenase/hydroxypyruvate reductase
(GDH). D-glycerate dehydrogenase (GDH, also known as
hydroxypyruvate reductase, HPR) catalyzes the reversible
reaction of (R)-glycerate + NAD+ to hydroxypyruvate +
NADH + H+. In humans, HPR deficiency causes primary
hyperoxaluria type 2, characterized by over-excretion of
L-glycerate and oxalate in the urine, possibly due to an
imbalance in competition with L-lactate dehydrogenase,
another formate dehydrogenase (FDH)-like enzyme. GDH,
like FDH and other members of the D-specific hydroxyacid
dehydrogenase family that also includes L-alanine
dehydrogenase and S-adenosylhomocysteine hydrolase,
typically have a characteristic arrangement of 2 similar
subdomains of the alpha/beta Rossmann-fold NAD+ binding
form, despite often low sequence identity. The NAD+
binding domain is inserted within the linear sequence of
the mostly N-terminal catalytic domain, which has a
similar domain structure to the internal NAD binding
domain. Structurally, these domains are connected by
extended alpha helices and create a cleft in which NAD
is bound, primarily to the C-terminal portion of the 2nd
(internal) domain. Some related proteins have similar
structural subdomain but with a tandem arrangement of
the catalytic and NAD-binding subdomains in the linear
sequence. While many members of this family are dimeric,
alanine DH is hexameric and phosphoglycerate DH is
tetrameric.
Length = 309
Score = 27.4 bits (62), Expect = 2.9
Identities = 15/67 (22%), Positives = 24/67 (35%), Gaps = 14/67 (20%)
Query: 21 IGFAIAKRLSAEGASVVISSRKESNVNKA--------VETLQKEGHQNVSGVVC-HVANT 71
IG A+A+R G ++ +R + ++ L E S V H T
Sbjct: 155 IGQAVARRAKGFGMKILYHNRSRKPEAEEELGARYVSLDELLAE-----SDFVSLHCPLT 209
Query: 72 DERQKLF 78
E + L
Sbjct: 210 PETRHLI 216
>gnl|CDD|181466 PRK08558, PRK08558, adenine phosphoribosyltransferase; Provisional.
Length = 238
Score = 27.3 bits (61), Expect = 2.9
Identities = 18/45 (40%), Positives = 25/45 (55%), Gaps = 6/45 (13%)
Query: 13 VITASTEGI--GFAIAKRLSAEGASVVISSR-KESNVNKAVETLQ 54
V+TA+T+GI AIA GA +V + + KE+ V K E Q
Sbjct: 115 VLTAATDGIPLAVAIASYF---GADLVYAKKSKETGVEKFYEEYQ 156
>gnl|CDD|180774 PRK06953, PRK06953, short chain dehydrogenase; Provisional.
Length = 222
Score = 27.3 bits (61), Expect = 3.0
Identities = 12/50 (24%), Positives = 25/50 (50%), Gaps = 1/50 (2%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQ 59
K +I ++ GIG ++ A+G V+ ++R + + A++ L E
Sbjct: 2 KTVLIVGASRGIGREFVRQYRADGWRVIATARDAAAL-AALQALGAEALA 50
>gnl|CDD|223788 COG0716, FldA, Flavodoxins [Energy production and conversion].
Length = 151
Score = 27.0 bits (60), Expect = 3.0
Identities = 12/39 (30%), Positives = 18/39 (46%), Gaps = 4/39 (10%)
Query: 10 KVAVITAS----TEGIGFAIAKRLSAEGASVVISSRKES 44
K+ ++ S TE + IA+ L A+G V I R
Sbjct: 3 KILIVYGSRTGNTEKVAEIIAEELGADGFEVDIDIRPGI 41
>gnl|CDD|201664 pfam01210, NAD_Gly3P_dh_N, NAD-dependent glycerol-3-phosphate
dehydrogenase N-terminus. NAD-dependent
glycerol-3-phosphate dehydrogenase (GPDH) catalyzes the
interconversion of dihydroxyacetone phosphate and
L-glycerol-3-phosphate. This family represents the
N-terminal NAD-binding domain.
Length = 157
Score = 26.8 bits (60), Expect = 3.4
Identities = 13/38 (34%), Positives = 19/38 (50%), Gaps = 2/38 (5%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVN 47
K+AV+ A G A+AK L+ G V + R E +
Sbjct: 1 KIAVLGAG--SWGTALAKVLARNGHEVRLWGRDEELIE 36
>gnl|CDD|187670 cd09810, LPOR_like_SDR_c_like, light-dependent
protochlorophyllide reductase (LPOR)-like, classical
(c)-like SDRs. Classical SDR-like subgroup containing
LPOR and related proteins. Protochlorophyllide
(Pchlide) reductases act in chlorophyll biosynthesis.
There are distinct enzymes that catalyze Pchlide
reduction in light or dark conditions. Light-dependent
reduction is via an NADP-dependent SDR, LPOR. Proteins
in this subfamily share the glycine-rich NAD-binding
motif of the classical SDRs, have a partial match to
the canonical active site tetrad, but lack the typical
active site Ser. SDRs are a functionally diverse family
of oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 311
Score = 27.5 bits (61), Expect = 3.4
Identities = 14/45 (31%), Positives = 23/45 (51%), Gaps = 1/45 (2%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETL 53
VIT ++ G+G A AK L+ G VV++ R +A + +
Sbjct: 2 GTVVITGASSGLGLAAAKALARRGEWHVVMACRDFLKAEQAAQEV 46
>gnl|CDD|176231 cd08270, MDR4, Medium chain dehydrogenases/reductase
(MDR)/zinc-dependent alcohol dehydrogenase-like family.
This group is a member of the medium chain
dehydrogenases/reductase (MDR)/zinc-dependent alcohol
dehydrogenase-like family, but lacks the zinc-binding
sites of the zinc-dependent alcohol dehydrogenases. The
medium chain dehydrogenases/reductase
(MDR)/zinc-dependent alcohol dehydrogenase-like family,
which contains the zinc-dependent alcohol dehydrogenase
(ADH-Zn) and related proteins, is a diverse group of
proteins related to the first identified member, class I
mammalian ADH. MDRs display a broad range of activities
and are distinguished from the smaller short chain
dehydrogenases (~ 250 amino acids vs. the ~ 350 amino
acids of the MDR). The MDR proteins have 2 domains: a
C-terminal NAD(P)-binding Rossmann fold domain of a
beta-alpha form and an N-terminal catalytic domain with
distant homology to GroES. The MDR group contains a
host of activities, including the founding alcohol
dehydrogenase (ADH), quinone reductase, sorbitol
dehydrogenase, formaldehyde dehydrogenase, butanediol
DH, ketose reductase, cinnamyl reductase, and numerous
others. The zinc-dependent alcohol dehydrogenases (ADHs)
catalyze the NAD(P)(H)-dependent interconversion of
alcohols to aldehydes or ketones. Active site zinc has
a catalytic role, while structural zinc aids in
stability. ADH-like proteins typically form dimers
(typically higher plants, mammals) or tetramers (yeast,
bacteria), and generally have 2 tightly bound zinc atoms
per subunit. The active site zinc is coordinated by a
histidine, two cysteines, and a water molecule. The
second zinc seems to play a structural role, affects
subunit interactions, and is typically coordinated by 4
cysteines.
Length = 305
Score = 27.3 bits (61), Expect = 3.5
Identities = 13/40 (32%), Positives = 23/40 (57%), Gaps = 4/40 (10%)
Query: 6 RLVGKVAVITASTEGIG-FAIAKRLSAE-GASVVISSRKE 43
L+G+ ++T ++ G+G FA+ +L+A GA VV
Sbjct: 130 PLLGRRVLVTGASGGVGRFAV--QLAALAGAHVVAVVGSP 167
>gnl|CDD|217719 pfam03767, Acid_phosphat_B, HAD superfamily, subfamily IIIB (Acid
phosphatase). This family proteins includes acid
phosphatases and a number of vegetative storage
proteins.
Length = 213
Score = 26.9 bits (60), Expect = 3.7
Identities = 8/28 (28%), Positives = 12/28 (42%)
Query: 38 ISSRKESNVNKAVETLQKEGHQNVSGVV 65
+S R E VE L+K G ++
Sbjct: 125 VSGRSEDLRAATVENLKKAGFHGWEKLI 152
>gnl|CDD|215370 PLN02686, PLN02686, cinnamoyl-CoA reductase.
Length = 367
Score = 27.1 bits (60), Expect = 3.8
Identities = 21/79 (26%), Positives = 36/79 (45%), Gaps = 4/79 (5%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVE-TLQKEGHQNVSGVVCHV 68
++ +T +G AI RL G SV I+ + + K E + E ++ G+ +
Sbjct: 54 RLVCVTGGVSFLGLAIVDRLLRHGYSVRIAVDTQEDKEKLREMEMFGEMGRSNDGIWTVM 113
Query: 69 ANTDERQKL---FEHCSEV 84
AN E + L F+ C+ V
Sbjct: 114 ANLTEPESLHEAFDGCAGV 132
>gnl|CDD|163279 TIGR03466, HpnA, hopanoid-associated sugar epimerase. The
sequences in this family are members of the pfam01370
superfamily of NAD-dependent epimerases and dehydratases
typically acting on nucleotide-sugar substrates. The
genes of the family modeled here are generally in the
same locus with genes involved in the biosynthesis and
elaboration of hopene, the cyclization product of the
polyisoprenoid squalene. This gene and its association
with hopene biosynthesis in Zymomonas mobilis has been
noted in the literature where the gene symbol hpnA was
assigned. Hopanoids are known to be components of the
plasma membrane and to have polar sugar head groups in
Z. mobilis and other species.
Length = 328
Score = 27.3 bits (61), Expect = 3.9
Identities = 29/132 (21%), Positives = 54/132 (40%), Gaps = 35/132 (26%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNV-NKA---VETLQKEG-------- 57
++T +T +G A+ + L +G V + R S+ N VE + EG
Sbjct: 1 MKVLVTGATGFVGSAVVRLLLEQGEEVRVLVRPTSDRRNLEGLDVEIV--EGDLRDPASL 58
Query: 58 HQNVSGV--VCHVANTDERQKLFEHCSEVVW----DKIFDVNLKSSFLLTQEVLPYMRKK 111
+ V+G + HVA D R +W ++++ N++ T+ +L +
Sbjct: 59 RKAVAGCRALFHVA-ADYR----------LWAPDPEEMYAANVEG----TRNLLRAALEA 103
Query: 112 KGGSIVYVSSIG 123
+VY SS+
Sbjct: 104 GVERVVYTSSVA 115
>gnl|CDD|182036 PRK09700, PRK09700, D-allose transporter ATP-binding protein;
Provisional.
Length = 510
Score = 27.1 bits (60), Expect = 4.2
Identities = 17/52 (32%), Positives = 28/52 (53%), Gaps = 2/52 (3%)
Query: 23 FAIAKRLSAEGASVVISSRKESNVNKAVE--TLQKEGHQNVSGVVCHVANTD 72
F I +L EG ++V S K + + + + T+ K+G SG+V V+N D
Sbjct: 185 FLIMNQLRKEGTAIVYISHKLAEIRRICDRYTVMKDGSSVCSGMVSDVSNDD 236
>gnl|CDD|180142 PRK05578, PRK05578, cytidine deaminase; Validated.
Length = 131
Score = 26.4 bits (59), Expect = 4.2
Identities = 11/43 (25%), Positives = 14/43 (32%), Gaps = 9/43 (20%)
Query: 49 AVETLQKEGHQNVSGVVCHVANTDE--------RQKLFEHCSE 83
A+ EG + + C V T E RQ L E
Sbjct: 58 AIFKAISEGGGRLVAIAC-VGETGEPLSPCGRCRQVLAEFGGP 99
>gnl|CDD|180335 PRK05980, PRK05980, enoyl-CoA hydratase; Provisional.
Length = 260
Score = 27.0 bits (60), Expect = 4.4
Identities = 9/23 (39%), Positives = 14/23 (60%)
Query: 12 AVITASTEGIGFAIAKRLSAEGA 34
A++TA T G+ +IA+ L E
Sbjct: 212 AILTAVTRGLNLSIAEGLLIESE 234
>gnl|CDD|187545 cd05234, UDP_G4E_2_SDR_e, UDP-glucose 4 epimerase, subgroup 2,
extended (e) SDRs. UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), is a homodimeric extended
SDR. It catalyzes the NAD-dependent conversion of
UDP-galactose to UDP-glucose, the final step in Leloir
galactose synthesis. This subgroup is comprised of
archaeal and bacterial proteins, and has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 305
Score = 26.9 bits (60), Expect = 4.5
Identities = 12/31 (38%), Positives = 17/31 (54%)
Query: 91 DVNLKSSFLLTQEVLPYMRKKKGGSIVYVSS 121
D++L+ + L T VL MR IV+ SS
Sbjct: 88 DIDLEENVLATYNVLEAMRANGVKRIVFASS 118
>gnl|CDD|181187 PRK07984, PRK07984, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 262
Score = 26.8 bits (59), Expect = 4.8
Identities = 23/87 (26%), Positives = 39/87 (44%), Gaps = 6/87 (6%)
Query: 7 LVGKVAVIT--ASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGV 64
L GK ++T AS I + IA+ + EGA + + + + + VE + ++ +
Sbjct: 4 LSGKRILVTGVASKLSIAYGIAQAMHREGAELAFTYQND-KLKGRVEEFAAQLGSDIV-L 61
Query: 65 VCHVANTDERQKLFEHCSEVVWDKIFD 91
C VA +F + VW K FD
Sbjct: 62 PCDVAEDASIDAMFAELGK-VWPK-FD 86
>gnl|CDD|223518 COG0441, ThrS, Threonyl-tRNA synthetase [Translation, ribosomal
structure and biogenesis].
Length = 589
Score = 26.8 bits (60), Expect = 5.0
Identities = 12/36 (33%), Positives = 18/36 (50%), Gaps = 2/36 (5%)
Query: 11 VAVITASTEGIGFA--IAKRLSAEGASVVISSRKES 44
V VI + E + +A +A++L G V I R E
Sbjct: 490 VRVIPVADEHLDYAKEVAEKLRKAGIRVDIDDRNEK 525
>gnl|CDD|187554 cd05243, SDR_a5, atypical (a) SDRs, subgroup 5. This subgroup
contains atypical SDRs, some of which are identified as
putative NAD(P)-dependent epimerases, one as a putative
NAD-dependent epimerase/dehydratase. Atypical SDRs are
distinct from classical SDRs. Members of this subgroup
have a glycine-rich NAD(P)-binding motif that is very
similar to the extended SDRs, GXXGXXG, and binds NADP.
Generally, this subgroup has poor conservation of the
active site tetrad; however, individual sequences do
contain matches to the YXXXK active site motif, the
upstream Ser, and there is a highly conserved Asp in
place of the usual active site Asn throughout the
subgroup. Atypical SDRs generally lack the catalytic
residues characteristic of the SDRs, and their
glycine-rich NAD(P)-binding motif is often different
from the forms normally seen in classical or extended
SDRs. Atypical SDRs include biliverdin IX beta reductase
(BVR-B,aka flavin reductase), NMRa (a negative
transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane reductase,
isoflavone reductases, and others. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold, an NAD(P)(H)-binding region, and a structurally
diverse C-terminal region. Sequence identity between
different SDR enzymes is typically in the 15-30% range;
they catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. In addition to the
Rossmann fold core region typical of all SDRs, extended
SDRs have a less conserved C-terminal extension of
approximately 100 amino acids, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 203
Score = 26.4 bits (59), Expect = 5.5
Identities = 27/124 (21%), Positives = 40/124 (32%), Gaps = 21/124 (16%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVA 69
KV V+ A T +G + + L G V R S K L+ G VV +
Sbjct: 1 KVLVVGA-TGKVGRHVVRELLDRGYQVRALVRDPSQAEK----LEAAG---AEVVVGDLT 52
Query: 70 NTDERQKLFEHCSEVVW---------DKIFDVNLKSSFLLTQEVLPYMRKKKGGSIVYVS 120
+ + E V+ + V+ + L +K V VS
Sbjct: 53 DAESLAAALEGIDAVISAAGSGGKGGPRTEAVDYDGNINLIDA----AKKAGVKRFVLVS 108
Query: 121 SIGG 124
SIG
Sbjct: 109 SIGA 112
>gnl|CDD|233441 TIGR01500, sepiapter_red, sepiapterin reductase. This model
describes sepiapterin reductase, a member of the short
chain dehydrogenase/reductase family. The enzyme
catalyzes the last step in the biosynthesis of
tetrahydrobiopterin. A similar enzyme in Bacillus
cereus was isolated for its ability to convert benzil
to (S)-benzoin, a property sepiapterin reductase also
shares. Cutoff scores for this model are set such that
benzil reductase scores between trusted and noise
cutoffs.
Length = 256
Score = 26.4 bits (58), Expect = 5.6
Identities = 13/50 (26%), Positives = 26/50 (52%), Gaps = 4/50 (8%)
Query: 11 VAVITASTEGIGFAIA----KRLSAEGASVVISSRKESNVNKAVETLQKE 56
V ++T ++ G G IA K L + G+ +V+S+R + + + + E
Sbjct: 2 VCLVTGASRGFGRTIAQELAKCLKSPGSVLVLSARNDEALRQLKAEIGAE 51
>gnl|CDD|224170 COG1250, FadB, 3-hydroxyacyl-CoA dehydrogenase [Lipid
metabolism].
Length = 307
Score = 26.4 bits (59), Expect = 5.7
Identities = 14/46 (30%), Positives = 22/46 (47%), Gaps = 2/46 (4%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQK 55
KVAVI A +G IA + G VV+ + +A+ ++K
Sbjct: 5 KVAVIGAGV--MGAGIAAVFALAGYDVVLKDISPEALERALAYIEK 48
>gnl|CDD|240186 cd05559, SCP_HrTT-1, SCP_HrTT-1: SCP-like extracellular protein
domain in HrTT-1, a tail-tip epidermis marker in
ascidians. The wider family of SCP containing proteins
includes plant pathogenesis-related protein 1 (PR-1),
CRISPs, mammalian cysteine-rich secretory proteins, and
allergen 5 from vespid venom. It has been proposed that
SCP domains may function as endopeptidases.
Length = 136
Score = 25.9 bits (57), Expect = 5.7
Identities = 22/73 (30%), Positives = 33/73 (45%), Gaps = 5/73 (6%)
Query: 33 GASVVISSRKESNVNKAVETLQKEGHQNVSGVVCHVANTDERQKLFEHCSEVVWDKIFDV 92
G ++ IS+ + KAVE E + + + NT K+ H ++VVW F +
Sbjct: 56 GENLFISTGPPFDATKAVEDWNNE-KLDYN----YNTNTCAPNKMCGHYTQVVWANTFKI 110
Query: 93 NLKSSFLLTQEVL 105
S F T EVL
Sbjct: 111 GCGSYFCETLEVL 123
>gnl|CDD|150277 pfam09548, Spore_III_AB, Stage III sporulation protein AB
(spore_III_AB). SpoIIIAB represents the stage III
sporulation protein AB, which is encoded in a spore
formation operon: spoIIIAABCDEFGH that is under sigma G
regulation. A comparative genome analysis of all
sequenced genomes of Firmicutes shows that the proteins
are strictly conserved among the sub-set of
endospore-forming species.
Length = 170
Score = 26.3 bits (59), Expect = 5.8
Identities = 12/24 (50%), Positives = 15/24 (62%), Gaps = 1/24 (4%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLS 30
L+G V +I +ST IGF AKR
Sbjct: 2 LIGAVLIILSST-LIGFLYAKRYK 24
>gnl|CDD|187633 cd08928, KR_fFAS_like_SDR_c_like, ketoacyl reductase (KR) domain
of fungal-type fatty acid synthase (fFAS)-like,
classical (c)-like SDRs. KR domain of FAS, including
the fungal-type multidomain FAS alpha chain, and the
single domain daunorubicin C-13 ketoreductase.
Fungal-type FAS is a heterododecameric FAS composed of
alpha and beta multifunctional polypeptide chains. The
KR, an SDR family member is located centrally in the
alpha chain. KR catalyzes the NADP-dependent reduction
of ketoacyl-ACP to hydroxyacyl-ACP. KR shares the
critical active site Tyr of the classical SDR and has
partial identity of the active site tetrad, but the
upstream Asn is replaced in KR by Met. As in other
SDRs, there is a glycine rich NAD(P)-binding motif, but
the pattern found in KR does not match the classical
SDRs, and is not strictly conserved within this group.
Daunorubicin is a clinically important therapeutic
compound used in some cancer treatments. Single domain
daunorubicin C-13 ketoreductase is member of the
classical SDR family with a canonical glycine-rich
NAD(P)-binding motif, but lacking a complete match to
the active site tetrad characteristic of this group.
The critical Tyr, plus the Lys and upstream Asn are
present, but the catalytic Ser is replaced, generally
by Gln. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical
SDRs have lost catalytic activity and/or have an
unusual NAD(P)-binding motif and missing or unusual
active site residues. Reactions catalyzed within the
SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase
activity, dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 248
Score = 26.5 bits (58), Expect = 6.0
Identities = 10/34 (29%), Positives = 19/34 (55%), Gaps = 1/34 (2%)
Query: 12 AVITASTEG-IGFAIAKRLSAEGASVVISSRKES 44
+IT + +G IG + + L GA V +++ + S
Sbjct: 1 VLITGAGDGSIGAEVLQGLLNGGAKVYVTTSRFS 34
>gnl|CDD|187572 cd05262, SDR_a7, atypical (a) SDRs, subgroup 7. This subgroup
contains atypical SDRs of unknown function. Members of
this subgroup have a glycine-rich NAD(P)-binding motif
consensus that matches the extended SDRs, TGXXGXXG, but
lacks the characteristic active site residues of the
SDRs. This subgroup has basic residues (HXXXR) in place
of the active site motif YXXXK, these may have a
catalytic role. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, and typically have a TGXXGXXG cofactor
binding motif. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 291
Score = 26.5 bits (59), Expect = 6.1
Identities = 15/50 (30%), Positives = 22/50 (44%), Gaps = 4/50 (8%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
+T +T IG A+ + L A G VV +R + L+ G Q G
Sbjct: 5 VTGATGFIGSAVVRELVAAGHEVVGLARSD----AGAAKLEAAGAQVHRG 50
>gnl|CDD|181371 PRK08306, PRK08306, dipicolinate synthase subunit A; Reviewed.
Length = 296
Score = 26.3 bits (59), Expect = 6.6
Identities = 9/24 (37%), Positives = 15/24 (62%)
Query: 21 IGFAIAKRLSAEGASVVISSRKES 44
G +A+ L A GA+V + +RK +
Sbjct: 163 TGMTLARTLKALGANVTVGARKSA 186
>gnl|CDD|187542 cd05231, NmrA_TMR_like_1_SDR_a, NmrA (a transcriptional
regulator) and triphenylmethane reductase (TMR) like
proteins, subgroup 1, atypical (a) SDRs. Atypical SDRs
related to NMRa, TMR, and HSCARG (an NADPH sensor).
This subgroup resembles the SDRs and has a partially
conserved characteristic [ST]GXXGXXG NAD-binding motif,
but lacks the conserved active site residues. NmrA is a
negative transcriptional regulator of various fungi,
involved in the post-translational modulation of the
GATA-type transcription factor AreA. NmrA lacks the
canonical GXXGXXG NAD-binding motif and has altered
residues at the catalytic triad, including a Met
instead of the critical Tyr residue. NmrA may bind
nucleotides but appears to lack any dehydrogenase
activity. HSCARG has been identified as a putative
NADP-sensing molecule, and redistributes and
restructures in response to NADPH/NADP ratios. Like
NmrA, it lacks most of the active site residues of the
SDR family, but has an NAD(P)-binding motif similar to
the extended SDR family, GXXGXXG. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Atypical
SDRs are distinct from classical SDRs. Classical SDRs
have an TGXXX[AG]XG cofactor binding motif and a YXXXK
active site motif, with the Tyr residue of the active
site motif serving as a critical catalytic residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser and/or an Asn, contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. In addition to the Rossmann fold core
region typical of all SDRs, extended SDRs have a less
conserved C-terminal extension of approximately 100
amino acids, and typically have a TGXXGXXG cofactor
binding motif. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 259
Score = 26.1 bits (58), Expect = 6.7
Identities = 13/51 (25%), Positives = 20/51 (39%), Gaps = 4/51 (7%)
Query: 13 VITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNVSG 63
++T +T IG +A L G V R ++ L G + V G
Sbjct: 2 LVTGATGRIGSKVATTLLEAGRPVRALVRS----DERAAALAARGAEVVVG 48
>gnl|CDD|176205 cd08243, quinone_oxidoreductase_like_1, Quinone oxidoreductase
(QOR). NAD(P)(H)-dependent oxidoreductases are the
major enzymes in the interconversion of alcohols and
aldehydes, or ketones. The medium chain alcohol
dehydrogenase family (MDR) have a NAD(P)(H)-binding
domain in a Rossmann fold of a beta-alpha form. The
N-terminal region typically has an all-beta catalytic
domain. These proteins typically form dimers (typically
higher plants, mammals) or tetramers (yeast, bacteria),
and have 2 tightly bound zinc atoms per subunit.
Length = 320
Score = 26.4 bits (59), Expect = 7.0
Identities = 13/48 (27%), Positives = 19/48 (39%), Gaps = 4/48 (8%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGHQNV 61
I T +G A K A GA+V ++R L++ G V
Sbjct: 148 IRGGTSSVGLAALKLAKALGATVTATTRSPER----AALLKELGADEV 191
>gnl|CDD|187673 cd09813, 3b-HSD-NSDHL-like_SDR_e, human NSDHL (NAD(P)H steroid
dehydrogenase-like protein)-like, extended (e) SDRs.
This subgroup includes human NSDHL and related proteins.
These proteins have the characteristic active site
tetrad of extended SDRs, and also have a close match to
their NAD(P)-binding motif. Human NSDHL is a
3beta-hydroxysteroid dehydrogenase (3 beta-HSD) which
functions in the cholesterol biosynthetic pathway. 3
beta-HSD catalyzes the oxidative conversion of delta 5-3
beta-hydroxysteroids to the delta 4-3-keto
configuration; this activity is essential for the
biosynthesis of all classes of hormonal steroids.
Mutations in the gene encoding NSDHL cause CHILD
syndrome (congenital hemidysplasia with ichthyosiform
nevus and limb defects), an X-linked dominant,
male-lethal trait. This subgroup also includes an
unusual bifunctional [3beta-hydroxysteroid dehydrogenase
(3b-HSD)/C-4 decarboxylase from Arabidopsis thaliana,
and Saccharomyces cerevisiae ERG26, a 3b-HSD/C-4
decarboxylase, involved in the synthesis of ergosterol,
the major sterol of yeast. Extended SDRs are distinct
from classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid sythase have
a GGXGXXG NAD(P)-binding motif and an altered active
site motif (YXXXN). Fungal type ketoacyl reductases have
a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 335
Score = 26.6 bits (59), Expect = 7.0
Identities = 15/54 (27%), Positives = 24/54 (44%), Gaps = 2/54 (3%)
Query: 1 MFKATRLVGKVAVI-TAS-TEGIGFAIAKRLSAEGASVVISSRKESNVNKAVET 52
+ KA G V TAS G + +++ +G VI + ++ V K V T
Sbjct: 59 LEKAFNEKGPNVVFHTASPDHGSNDDLYYKVNVQGTRNVIEACRKCGVKKLVYT 112
>gnl|CDD|240622 cd05198, formate_dh_like, Formate/glycerate and related
dehydrogenases of the D-specific 2-hydroxy acid
dehydrogenase family. Formate dehydrogenase, D-specific
2-hydroxy acid dehydrogenase, Phosphoglycerate
Dehydrogenase, Lactate dehydrogenase, Thermostable
Phosphite Dehydrogenase, and Hydroxy(phenyl)pyruvate
reductase, among others, share a characteristic
arrangement of 2 similar subdomains of the alpha/beta
Rossmann fold NAD+ binding form. 2-hydroxyacid
dehydrogenases are enzymes that catalyze the conversion
of a wide variety of D-2-hydroxy acids to their
corresponding keto acids. The general mechanism is
(R)-lactate + acceptor to pyruvate + reduced acceptor.
The NAD+ binding domain is inserted within the linear
sequence of the mostly N-terminal catalytic domain,
which has a similar domain structure to the internal NAD
binding domain. Structurally, these domains are
connected by extended alpha helices and create a cleft
in which NAD is bound, primarily to the C-terminal
portion of the 2nd (internal) domain. Some related
proteins have similar structural subdomain but with a
tandem arrangement of the catalytic and NAD-binding
subdomains in the linear sequence. Formate dehydrogenase
(FDH) catalyzes the NAD+-dependent oxidation of formate
ion to carbon dioxide with the concomitant reduction of
NAD+ to NADH. FDHs of this family contain no metal ions
or prosthetic groups. Catalysis occurs though direct
transfer of hydride ion to NAD+ without the stages of
acid-base catalysis typically found in related
dehydrogenases. FDHs are found in all methylotrophic
microorganisms in energy production and in the stress
responses of plants. Formate/glycerate and related
dehydrogenases of the D-specific 2-hydroxyacid
dehydrogenase superfamily include groups such as formate
dehydrogenase, glycerate dehydrogenase, L-alanine
dehydrogenase, and S-Adenosylhomocysteine Hydrolase,
among others. While many members of this family are
dimeric, alanine DH is hexameric and phosphoglycerate DH
is tetrameric.
Length = 302
Score = 26.4 bits (59), Expect = 7.3
Identities = 15/43 (34%), Positives = 17/43 (39%), Gaps = 1/43 (2%)
Query: 2 FKATRLVGKVAVITASTEGIGFAIAKRLSAEGASVVISSRKES 44
F L GK I IG +AKRL A G V+ R
Sbjct: 133 FPGYELEGKTVGIVG-LGRIGQRVAKRLQAFGMKVLYYDRTRK 174
>gnl|CDD|181372 PRK08307, PRK08307, stage III sporulation protein SpoAB;
Provisional.
Length = 171
Score = 26.0 bits (58), Expect = 7.4
Identities = 13/24 (54%), Positives = 15/24 (62%), Gaps = 1/24 (4%)
Query: 7 LVGKVAVITASTEGIGFAIAKRLS 30
L+G V +I AST IGF AKR
Sbjct: 3 LLGAVLIIAAST-WIGFLYAKRYK 25
>gnl|CDD|202367 pfam02737, 3HCDH_N, 3-hydroxyacyl-CoA dehydrogenase, NAD binding
domain. This family also includes lambda crystallin.
Length = 180
Score = 26.0 bits (58), Expect = 7.6
Identities = 18/46 (39%), Positives = 24/46 (52%), Gaps = 2/46 (4%)
Query: 10 KVAVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQK 55
KVAVI A T G G IA+ + G VV+ E + KA ++K
Sbjct: 1 KVAVIGAGTMGAG--IAQVFARAGLEVVLVDISEEALEKARARIEK 44
>gnl|CDD|200089 TIGR01289, LPOR, light-dependent protochlorophyllide reductase.
This model represents the light-dependent,
NADPH-dependent form of protochlorophyllide reductase.
It belongs to the short chain alcohol dehydrogenase
family, in contrast to the nitrogenase-related
light-independent form [Biosynthesis of cofactors,
prosthetic groups, and carriers, Chlorophyll and
bacteriochlorphyll].
Length = 314
Score = 26.0 bits (57), Expect = 8.7
Identities = 13/43 (30%), Positives = 24/43 (55%), Gaps = 1/43 (2%)
Query: 12 AVITASTEGIGFAIAKRLSAEGA-SVVISSRKESNVNKAVETL 53
+IT ++ G+G AK L+A G V+++ R +A ++L
Sbjct: 6 VIITGASSGLGLYAAKALAATGEWHVIMACRDFLKAEQAAKSL 48
>gnl|CDD|187658 cd08955, KR_2_FAS_SDR_x, beta-ketoacyl reductase (KR) domain of
fatty acid synthase (FAS), subgroup 2, complex (x).
Ketoreductase, a module of the multidomain polyketide
synthase, has 2 subdomains, each corresponding to a
short-chain dehydrogenases/reductase (SDR) family
monomer. The C-terminal subdomain catalyzes the
NADPH-dependent reduction of the beta-carbonyl of a
polyketide to a hydroxyl group, a step in the
biosynthesis of polyketides, such as erythromycin. The
N-terminal subdomain, an interdomain linker, is a
truncated Rossmann fold which acts to stabilizes the
catalytic subdomain. Unlike typical SDRs, the isolated
domain does not oligomerizes but is composed of 2
subdomains, each resembling an SDR monomer. In some
instances, as in porcine FAS, an enoyl reductase (a
Rossman fold NAD binding domain of the MDR family)
module is inserted between the sub-domains. The active
site resembles that of typical SDRs, except that the
usual positions of the catalytic asparagine and tyrosine
are swapped, so that the canonical YXXXK motif changes
to YXXXN. Modular polyketide synthases are
multifunctional structures in which the makeup
recapitulates that found in (and may have evolved from)
fatty acid synthase. In some instances, such as
porcine FAS , an enoyl reductase module is inserted
between the sub-domains. Fatty acid synthesis occurs via
the stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consists of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthesis
uses dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-ketoacyl reductase (KR), forming
beta-hydroxyacyl-ACP, which is in turn dehydrated by
dehydratase to a beta-enoyl intermediate, which is
reduced by NADP-dependent beta-enoyl reductase (ER).
Polyketide syntheses also proceeds via the addition of
2-carbon units as in fatty acid synthesis. The complex
SDR NADP binding motif, GGXGXXG, is often present, but
is not strictly conserved in each instance of the
module. This subfamily includes the KR domain of the
Lyngbya majuscule Jam J, -K, and #L which are encoded
on the jam gene cluster and are involved in the
synthesis of the Jamaicamides (neurotoxins); Lyngbya
majuscule Jam P belongs to a different KR_FAS_SDR_x
subfamily. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 376
Score = 26.1 bits (58), Expect = 9.3
Identities = 17/71 (23%), Positives = 30/71 (42%), Gaps = 4/71 (5%)
Query: 13 VITASTEGIGFAIAKRLSAEGAS--VVISSRKESN-VNKAVETLQKEGHQNVSGVVCHVA 69
+IT G+G +A+ L GA V+ R S +A+ L++ G + V + V+
Sbjct: 153 LITGGLGGLGLLVAEWLVERGARHLVLTGRRAPSAAARQAIAALEEAGAE-VVVLAADVS 211
Query: 70 NTDERQKLFEH 80
+ D
Sbjct: 212 DRDALAAALAQ 222
>gnl|CDD|187538 cd05227, AR_SDR_e, aldehyde reductase, extended (e) SDRs. This
subgroup contains aldehyde reductase of the extended
SDR-type and related proteins. Aldehyde reductase I
(aka carbonyl reductase) is an NADP-binding SDR; it has
an NADP-binding motif consensus that is slightly
different from the canonical SDR form and lacks the Asn
of the extended SDR active site tetrad. Aldehyde
reductase I catalyzes the NADP-dependent reduction of
ethyl 4-chloro-3-oxobutanoate to ethyl
(R)-4-chloro-3-hydroxybutanoate. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 301
Score = 26.1 bits (58), Expect = 9.4
Identities = 12/45 (26%), Positives = 19/45 (42%)
Query: 14 ITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEGH 58
+T +T I I ++L G V + R S K L+ G+
Sbjct: 4 VTGATGFIASHIVEQLLKAGYKVRGTVRSLSKSAKLKALLKAAGY 48
>gnl|CDD|180983 PRK07453, PRK07453, protochlorophyllide oxidoreductase;
Validated.
Length = 322
Score = 25.7 bits (57), Expect = 9.7
Identities = 15/46 (32%), Positives = 25/46 (54%), Gaps = 3/46 (6%)
Query: 12 AVITASTEGIGFAIAKRLSAEGASVVISSRKESNVNKAVETLQKEG 57
+IT ++ G+G AK L+ G V+++ R N+ KA Q+ G
Sbjct: 9 VIITGASSGVGLYAAKALAKRGWHVIMACR---NLKKAEAAAQELG 51
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.318 0.131 0.371
Gapped
Lambda K H
0.267 0.0845 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,169,685
Number of extensions: 620116
Number of successful extensions: 1463
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1340
Number of HSP's successfully gapped: 451
Length of query: 151
Length of database: 10,937,602
Length adjustment: 88
Effective length of query: 63
Effective length of database: 7,034,450
Effective search space: 443170350
Effective search space used: 443170350
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 54 (24.4 bits)