RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy2038
(155 letters)
>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 = 138 bits (349), Expect = 2e-41
Identities = 57/114 (50%), Positives = 75/114 (65%), Gaps = 1/114 (0%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
I+L+TG G+GIGR LA ++ + + DI+EKG ET + G + H YK DVS
Sbjct: 1 IVLITGGGSGIGRLLALEFAKRGAKVVILDINEKGAEETANNVRKAGGK-VHYYKCDVSK 59
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
REEV A K++KEVG+VTIL+NNAG++ K L E + I KTF+VN LAHFW
Sbjct: 60 REEVYEAAKKIKKEVGDVTILINNAGVVSGKKLLELPDEEIEKTFEVNTLAHFW 113
>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 = 88.5 bits (220), Expect = 2e-22
Identities = 36/113 (31%), Positives = 58/113 (51%), Gaps = 2/113 (1%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
L+TG +GIGR +A+RL ++ + + D +E+ E + G + DVS+
Sbjct: 1 ALVTGASSGIGRAIARRLAREGAKVVLADRNEEALAELAAIEALGGNA--VAVQADVSDE 58
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
E+V + ++ +E G + ILVNNAGI PL E + + DVN+ F
Sbjct: 59 EDVEALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNLTGVFL 111
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 89.9 bits (224), Expect = 1e-21
Identities = 43/135 (31%), Positives = 64/135 (47%), Gaps = 3/135 (2%)
Query: 20 YSALESILLTLIPPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNE 79
Y +LE L +P K L G++ L+TG GIG+ AKRL + + + D+DE+
Sbjct: 403 YWSLEQAKLQRMPK-PKPLAGKVALVTGAAGGIGKATAKRLAAEGACVVLADLDEEAAEA 461
Query: 80 TKQMPEEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKP 139
E G DV++ V ++ G V I+V+NAGI P+ E
Sbjct: 462 AAA--ELGGPDRALGVACDVTDEAAVQAAFEEAALAFGGVDIVVSNAGIAISGPIEETSD 519
Query: 140 DVIRKTFDVNVLAHF 154
+ R++FDVN HF
Sbjct: 520 EDWRRSFDVNATGHF 534
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 86.7 bits (215), Expect = 2e-21
Identities = 33/117 (28%), Positives = 56/117 (47%), Gaps = 1/117 (0%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
++ L+TG G GIG +AKRL + D +E+ + G + K D
Sbjct: 1 MSKVALVTGAGQGIGFAIAKRLVEDGFKVAIVDYNEETAQAAADKLSKDGGKAI-AVKAD 59
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
VS+R++V +V G++ ++VNNAG+ P P+ + K +++NV W
Sbjct: 60 VSDRDQVFAAVRQVVDTFGDLNVVVNNAGVAPTTPIETITEEQFDKVYNINVGGVIW 116
>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 = 86.0 bits (213), Expect = 3e-21
Identities = 37/123 (30%), Positives = 57/123 (46%), Gaps = 4/123 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
L G++ L+TG +GIGR +A+ L ++ + + +E+ +E G
Sbjct: 2 DLSGKVALVTGASSGIGRAIARALAREGARVVVAARRSEEEAAEALAAAIKEAGGGRAAA 61
Query: 95 YKLDVSN-REEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLA 152
DVS+ E V + +E G + ILVNNAGI PL E + + DVN+L
Sbjct: 62 VAADVSDDEESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLG 121
Query: 153 HFW 155
F
Sbjct: 122 AFL 124
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 81.5 bits (202), Expect = 2e-19
Identities = 37/114 (32%), Positives = 54/114 (47%), Gaps = 5/114 (4%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L G+++ +TG GIG A+ L + D+DE ET E G
Sbjct: 2 DLRGKVVAITGGARGIGLATARALAALGARVAIGDLDEALAKETA---AELGLV--VGGP 56
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
LDV++ D V ++G + +LVNNAG+MP P ++ V R+ DVNV
Sbjct: 57 LDVTDPASFAAFLDAVEADLGPIDVLVNNAGVMPVGPFLDEPDAVTRRILDVNV 110
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 83.1 bits (206), Expect = 3e-19
Identities = 36/115 (31%), Positives = 59/115 (51%), Gaps = 1/115 (0%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
G+++++TG G+GIGRE A ++ + + DIDE T ++ G H Y
Sbjct: 311 GPFSGKLVVVTGAGSGIGRETALAFAREGAEVVASDIDEAAAERTAELIRAAGAVA-HAY 369
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
++DVS+ + + A+ VR E G I+VNNAGI + + + DVN+
Sbjct: 370 RVDVSDADAMEAFAEWVRAEHGVPDIVVNNAGIGMAGGFLDTSAEDWDRVLDVNL 424
>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 = 79.4 bits (196), Expect = 1e-18
Identities = 35/112 (31%), Positives = 63/112 (56%), Gaps = 1/112 (0%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNRE 103
L+TG GIG+ +A+RL + D++E+ ET + + G + YKLDVS+++
Sbjct: 4 LVTGGAQGIGKGIAERLAKDGFAVAVADLNEETAKETAKEINQAGGKAV-AYKLDVSDKD 62
Query: 104 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
+V D+ ++ G ++VNNAG+ P P+ E + ++K ++VNV +
Sbjct: 63 QVFSAIDQAAEKFGGFDVMVNNAGVAPITPILEITEEELKKVYNVNVKGVLF 114
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 78.1 bits (193), Expect = 2e-18
Identities = 34/122 (27%), Positives = 56/122 (45%), Gaps = 7/122 (5%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFH 93
+L+G++ L+TG +GIG A+ L + K + + + + +E G
Sbjct: 2 TTLKGKVALITGASSGIGEATARALAEAGAKVVLAARREER-----LEALADEIGAGAAL 56
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 153
LDV++R V + + +E G + ILVNNAG+ PL+E D + D NV
Sbjct: 57 ALALDVTDRAAVEAAIEALPEEFGRIDILVNNAGLALGDPLDEADLDDWDRMIDTNVKGL 116
Query: 154 FW 155
Sbjct: 117 LN 118
>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 = 77.4 bits (191), Expect = 5e-18
Identities = 33/117 (28%), Positives = 59/117 (50%), Gaps = 2/117 (1%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHTYKLD 98
++ ++TG GIGR +A+RL + D++ E+ T Q E G D
Sbjct: 2 SKVAIITGAAQGIGRAIAERLAADGFNIVLADLNLEEAAKSTIQEISEAGYNA-VAVGAD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
V+++++V + D+ ++ G ++VNNAGI P PL + ++K + VNV +
Sbjct: 61 VTDKDDVEALIDQAVEKFGSFDVMVNNAGIAPITPLLTITEEDLKKVYAVNVFGVLF 117
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 76.6 bits (189), Expect = 1e-17
Identities = 39/118 (33%), Positives = 65/118 (55%), Gaps = 1/118 (0%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
SL+G+I L+TG GIG +AK + + + DI+++ ++ E G H Y
Sbjct: 7 SLKGKIALITGASYGIGFAIAKAYAKAGATIVFNDINQELVDKGLAAYRELGIEA-HGYV 65
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DV++ + V + ++ KEVG + ILVNNAGI+ P+ E + R+ D+++ A F
Sbjct: 66 CDVTDEDGVQAMVSQIEKEVGVIDILVNNAGIIKRIPMLEMSAEDFRQVIDIDLNAPF 123
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 76.0 bits (188), Expect = 2e-17
Identities = 32/121 (26%), Positives = 51/121 (42%), Gaps = 3/121 (2%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
LEG++ ++TG +GIG +A+R + + + D +E+ G
Sbjct: 1 MRLEGKVAIVTGASSGIGEGIARRFAAEGARVVVTDRNEEAAERVAAEILAGGRAIAV-- 58
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHF 154
DVS+ +V + G V ILVNNAG PL + + F VNV + +
Sbjct: 59 AADVSDEADVEAAVAAALERFGSVDILVNNAGTTHRNGPLLDVDEAEFDRIFAVNVKSPY 118
Query: 155 W 155
Sbjct: 119 L 119
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 75.8 bits (187), Expect = 2e-17
Identities = 33/118 (27%), Positives = 46/118 (38%), Gaps = 1/118 (0%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
+L G+ L+TG G+G A+ L + + D E E G H
Sbjct: 4 NLAGKRALVTGAARGLGAAFAEALAEAGATVAFNDGLAAEARELAAALEAAG-GRAHAIA 62
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ V R D +G + LVNNAGI K E D +VNV F
Sbjct: 63 ADLADPASVQRFFDAAAAALGGLDGLVNNAGITNSKSATELDIDTWDAVMNVNVRGTF 120
>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 = 75.7 bits (187), Expect = 2e-17
Identities = 34/88 (38%), Positives = 47/88 (53%), Gaps = 1/88 (1%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
++ L+TG GIGR +A RL + + D E+ ET + + G + DVS
Sbjct: 1 KVALVTGASRGIGRAIALRLAAEGAKVAVTDRSEEAAAETVEEIKALGGN-AAALEADVS 59
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGI 128
+RE V + +KV E G V ILVNNAGI
Sbjct: 60 DREAVEALVEKVEAEFGPVDILVNNAGI 87
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 75.6 bits (187), Expect = 2e-17
Identities = 34/114 (29%), Positives = 65/114 (57%), Gaps = 2/114 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L G++ ++TG GIGR +A+ L ++ + + +DI+E+ E + +E+G K
Sbjct: 3 LMGKVAIVTGASGGIGRAIAELLAKEGAKVVIAYDINEEAAQELLEEIKEEGGDAI-AVK 61
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DVS+ E+V + +++ ++ G++ ILVNNAGI + + + + DVN+
Sbjct: 62 ADVSSEEDVENLVEQIVEKFGKIDILVNNAGISNFGLVTDMTDEEWDRVIDVNL 115
>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 = 75.4 bits (186), Expect = 3e-17
Identities = 41/119 (34%), Positives = 60/119 (50%), Gaps = 2/119 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L G++ L+TG GIGR +AKRL + S+ + + + E E G + +
Sbjct: 1 LAGKVALVTGASRGIGRAIAKRLARDGASVVVNYASSKAAAEEVVAEIEAAGGKAI-AVQ 59
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
DVS+ +V R+ D K G V ILVNNAG+M KP+ E + + F VN F+
Sbjct: 60 ADVSDPSQVARLFDAAEKAFGGVDILVNNAGVMLKKPIAETSEEEFDRMFTVNTKGAFF 118
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 77.2 bits (190), Expect = 3e-17
Identities = 38/136 (27%), Positives = 59/136 (43%), Gaps = 2/136 (1%)
Query: 20 YSALESILLTLIPPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNE 79
Y LE L +P EK+L + +TG GIGRE A+RL + + + D++ +
Sbjct: 395 YWPLEEAKLRRMPK-EKTLARRVAFVTGGAGGIGRETARRLAAEGAHVVLADLNLEAAEA 453
Query: 80 TKQ-MPEEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQK 138
+ + G K+DV++ + V V G V I+VNNAGI P E
Sbjct: 454 VAAEINGQFGAGRAVALKMDVTDEQAVKAAFADVALAYGGVDIVVNNAGIATSSPFEETT 513
Query: 139 PDVIRKTFDVNVLAHF 154
+ D+ +F
Sbjct: 514 LQEWQLNLDILATGYF 529
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 74.8 bits (185), Expect = 4e-17
Identities = 40/116 (34%), Positives = 56/116 (48%), Gaps = 2/116 (1%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
SLEG++ L+TG GIGR +A+RL Q ++ + + E G G
Sbjct: 1 MSLEGKVALVTGASRGIGRAIAERLAAQGANVVINYASSEAGAEALVAEIGALG-GKALA 59
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ DVS+ E V R D+ + E G V ILVNNAGI L K + + D N+
Sbjct: 60 VQGDVSDAESVERAVDEAKAEFGGVDILVNNAGITRDNLLMRMKEEDWDRVIDTNL 115
>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 = 74.7 bits (184), Expect = 4e-17
Identities = 34/115 (29%), Positives = 57/115 (49%), Gaps = 2/115 (1%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
G++ L+TG +GIG +AKRL + + + DID K QG + DV
Sbjct: 1 GKVALVTGGASGIGLAIAKRLAAEGAAVVVADIDP--EIAEKVAEAAQGGPRALGVQCDV 58
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
++ +V ++ E G + I+V+NAGI P+ E + ++ D+N+ HF
Sbjct: 59 TSEAQVQSAFEQAVLEFGGLDIVVSNAGIATSSPIAETSLEDWNRSMDINLTGHF 113
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 74.6 bits (184), Expect = 5e-17
Identities = 36/120 (30%), Positives = 54/120 (45%), Gaps = 1/120 (0%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
+ LEG + L+TG GIGR +A RL + + DI T ++ E G
Sbjct: 2 RDLEGRVALVTGAARGIGRAIAVRLAADGAEVIVVDICGDDAAATAELVEAAG-GKARAR 60
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
++DV +R + ++ G + ILV NAGI P P E + + DVN+ F
Sbjct: 61 QVDVRDRAALKAAVAAGVEDFGRLDILVANAGIFPLTPFAEMDDEQWERVIDVNLTGTFL 120
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 73.7 bits (182), Expect = 1e-16
Identities = 33/115 (28%), Positives = 50/115 (43%), Gaps = 1/115 (0%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
SL+G+ L+TG GIGR +A RL + + +D +E+ G
Sbjct: 1 MSLQGKTALVTGASRGIGRAIALRLAADGAKVVIYDSNEEAAEALAAELRAAGGEA-RVL 59
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DVS+ V + + + G + ILVNNAGI L + + DVN+
Sbjct: 60 VFDVSDEAAVRALIEAAVEAFGALDILVNNAGITRDALLPRMSEEDWDRVIDVNL 114
>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 = 73.0 bits (180), Expect = 2e-16
Identities = 31/117 (26%), Positives = 50/117 (42%), Gaps = 14/117 (11%)
Query: 42 IILLTGLGNGIGRELAKRLFQQK-----SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
++L+TG +GIG LA L Q + ++ G +
Sbjct: 2 VVLITGCSSGIGLALALALAAQGYRVIATARNPDKLESLGELLNDN---------LEVLE 52
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 153
LDV++ E + +V + G + +LVNNAG PL E + +R+ F+VNV
Sbjct: 53 LDVTDEESIKAAVKEVIERFGRIDVLVNNAGYGLFGPLEETSIEEVRELFEVNVFGP 109
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 72.9 bits (179), Expect = 2e-16
Identities = 37/114 (32%), Positives = 59/114 (51%), Gaps = 8/114 (7%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSL-WMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
+G++ L+TG GIGR +A+ ++ + + ++ E E + E+G T K
Sbjct: 5 FKGKVALITGGTRGIGRAIAEAFLREGAKVAVLYNSAENEAKELR----EKGVFTI---K 57
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV NR++V + + V KE G V +LVNNAGIM P E + K +N+
Sbjct: 58 CDVGNRDQVKKSKEVVEKEFGRVDVLVNNAGIMYLMPFEEFDEEKYNKMIKINL 111
>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 = 72.7 bits (179), Expect = 3e-16
Identities = 33/111 (29%), Positives = 52/111 (46%), Gaps = 1/111 (0%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNRE 103
L+TG GIG +A+ L + + D + + E G F TYKLDV++
Sbjct: 2 LVTGAAQGIGYAVARALAEAGARVAAVDRNFEQLLELVADLRRYGYP-FATYKLDVADSA 60
Query: 104 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
V V ++ +E G + +LVN AGI+ ++ + + TF VN F
Sbjct: 61 AVDEVVQRLEREYGPIDVLVNVAGILRLGAIDSLSDEDWQATFAVNTFGVF 111
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 71.4 bits (176), Expect = 9e-16
Identities = 38/125 (30%), Positives = 56/125 (44%), Gaps = 12/125 (9%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI------DEKGNNETKQMPEEQGTR 90
SL G + L+TG G+GR +A RL + D+ DE+ E + E G R
Sbjct: 3 SLMGRVALVTGAARGLGRAIALRLARAG-----ADVVVHYRSDEEAAEELVEAVEALGRR 57
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ DV+++ + + G + ILVNNAGI KPL + D + DVN+
Sbjct: 58 -AQAVQADVTDKAALEAAVAAAVERFGRIDILVNNAGIFEDKPLADMSDDEWDEVIDVNL 116
Query: 151 LAHFW 155
F
Sbjct: 117 SGVFH 121
>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 = 70.8 bits (174), Expect = 1e-15
Identities = 36/118 (30%), Positives = 61/118 (51%), Gaps = 1/118 (0%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
SL+G++ L+TG GIG +A L + + + +E+ E +Q+ E++G +
Sbjct: 2 SLKGKVALVTGASRGIGFGIASGLAEAGANIVINSRNEEKAEEAQQLIEKEG-VEATAFT 60
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DVS+ E + + + ++ G++ ILVNNAGI+ P E R DVN+ F
Sbjct: 61 CDVSDEEAIKAAVEAIEEDFGKIDILVNNAGIIRRHPAEEFPEAEWRDVIDVNLNGVF 118
>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 = 70.8 bits (174), Expect = 1e-15
Identities = 34/121 (28%), Positives = 67/121 (55%), Gaps = 6/121 (4%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKS---LWMCWDIDEKGNNETKQMPEEQGTRTFH 93
SL+G++ ++TG GIG +A+ L + + + ++ + + +++ ++ G +T
Sbjct: 5 SLKGKVAIVTGGSRGIGLAIARALAEAGADVAII--YNSAPRAEEKAEELAKKYGVKT-K 61
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 153
YK DVS++E V + +++K+ G++ IL+ NAGI KP + + K DVN+
Sbjct: 62 AYKCDVSSQESVEKTFKQIQKDFGKIDILIANAGITVHKPALDYTYEQWNKVIDVNLNGV 121
Query: 154 F 154
F
Sbjct: 122 F 122
>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 = 70.9 bits (174), Expect = 1e-15
Identities = 31/115 (26%), Positives = 53/115 (46%), Gaps = 1/115 (0%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
G+ L+TG +GIG +A+ L + + D E+G ++ + G + DV
Sbjct: 1 GKTALVTGAASGIGLAIARALAAAGANVVVNDFGEEGAEAAAKVAGDAGGSVIY-LPADV 59
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ +E+ + E G + ILVNNAGI P+ E P+ + V + + F
Sbjct: 60 TKEDEIADMIAAAAAEFGGLDILVNNAGIQHVAPIEEFPPEDWDRIIAVMLTSAF 114
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 70.7 bits (174), Expect = 1e-15
Identities = 29/122 (23%), Positives = 51/122 (41%), Gaps = 10/122 (8%)
Query: 33 PSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTF 92
+ G+ + +TG GIG +A + + + +D + F
Sbjct: 1 MNAMDFSGKTVWVTGAAQGIGYAVALAFVEAGAKVIGFDQAFLTQEDYP----------F 50
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
T+ LDVS+ V +V ++ E G + +LVN AGI+ + + ++TF VN
Sbjct: 51 ATFVLDVSDAAAVAQVCQRLLAETGPLDVLVNAAGILRMGATDSLSDEDWQQTFAVNAGG 110
Query: 153 HF 154
F
Sbjct: 111 AF 112
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 70.7 bits (174), Expect = 2e-15
Identities = 34/113 (30%), Positives = 49/113 (43%), Gaps = 8/113 (7%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMC--WDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
I +TG +GIGR A F + W +DI+E G E G T LDV+
Sbjct: 4 IFITGAASGIGRATALL-FAAEG-WRVGAYDINEAGLAALAA---ELGAGNAWTGALDVT 58
Query: 101 NREEV-LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+R +AD G + +L NNAGI+ P + + + D+NV
Sbjct: 59 DRAAWDAALADFAAATGGRLDVLFNNAGILRGGPFEDIPLEAHDRVIDINVKG 111
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 68.3 bits (168), Expect = 3e-15
Identities = 26/117 (22%), Positives = 48/117 (41%), Gaps = 4/117 (3%)
Query: 42 IILLTGLGNGIGRELAKRLFQQ--KSLWMC-WDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
+L+TG G+G LA+ L + + L + G E E G D
Sbjct: 2 TVLITGGTGGLGLALARWLAAEGARHLVLVSRRGPAPGAAELVAELEALGAE-VTVAACD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
V++R+ + + + +G + +V+NAG++ PL E P+ + V +
Sbjct: 61 VADRDALAALLAALPAALGPLDGVVHNAGVLDDGPLEELTPERFERVLAPKVTGAWN 117
>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 = 69.3 bits (170), Expect = 4e-15
Identities = 32/110 (29%), Positives = 51/110 (46%), Gaps = 5/110 (4%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTR-TFHTYKLDVSNR 102
++TG +GIG AK L ++ + D +E + + TF DV++
Sbjct: 4 IITGGASGIGLATAKLLLKKGAKVAILDRNENPGAAAELQAINPKVKATFVQC--DVTSW 61
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNE--QKPDVIRKTFDVNV 150
E++ K ++ G V IL+NNAGI+ K + P KT DVN+
Sbjct: 62 EQLAAAFKKAIEKFGRVDILINNAGILDEKSYLFAGKLPPPWEKTIDVNL 111
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 69.1 bits (169), Expect = 9e-15
Identities = 40/127 (31%), Positives = 59/127 (46%), Gaps = 8/127 (6%)
Query: 32 PPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCW-DI-DEKGNNETKQMPEEQGT 89
+ L G++ L+TG GIG + RLF + +C D+ D+ G N + E
Sbjct: 10 SLPSQRLLGKVALVTGGATGIGESIV-RLFHKHGAKVCIVDLQDDLGQNVCDSLGGEPNV 68
Query: 90 RTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFD 147
FH DV+ ++V R D + G + I+VNNAG+ PC + + K FD
Sbjct: 69 CFFHC---DVTVEDDVSRAVDFTVDKFGTLDIMVNNAGLTGPPCPDIRNVELSEFEKVFD 125
Query: 148 VNVLAHF 154
VNV F
Sbjct: 126 VNVKGVF 132
>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 = 67.9 bits (166), Expect = 2e-14
Identities = 36/116 (31%), Positives = 57/116 (49%), Gaps = 2/116 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
G + L+TG GIG +A+ L Q + C +K + G T Y+
Sbjct: 4 WRGRVALVTGASVGIGAAVARALVQHGMKVVGCARRVDKIEALAAECQSA-GYPTLFPYQ 62
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
D+SN E++L + +R + V + +NNAG+ +PL K + ++ FDVNVLA
Sbjct: 63 CDLSNEEQILSMFSAIRTQHQGVDVCINNAGLARPEPLLSGKTEGWKEMFDVNVLA 118
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 67.7 bits (166), Expect = 3e-14
Identities = 37/123 (30%), Positives = 61/123 (49%), Gaps = 4/123 (3%)
Query: 33 PSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTR-T 91
P SL G+++++TG GIG ELA+RL + + D++E E + E G
Sbjct: 2 PPMTSLAGKVVVVTGAARGIGAELARRLHARGAKLALVDLEEA---ELAALAAELGGDDR 58
Query: 92 FHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
T DV++ + A++ + G + ++V NAGI + + PD R+ DVN+L
Sbjct: 59 VLTVVADVTDLAAMQAAAEEAVERFGGIDVVVANAGIASGGSVAQVDPDAFRRVIDVNLL 118
Query: 152 AHF 154
F
Sbjct: 119 GVF 121
>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 = 67.0 bits (164), Expect = 4e-14
Identities = 31/120 (25%), Positives = 56/120 (46%), Gaps = 4/120 (3%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
L+G++ ++TG G+G A+ L + + + DI + E + E G +
Sbjct: 1 NRLKGKVAIVTGGARGLGLAHARLLVAEGAKVVLSDILD---EEGQAAAAELGDAA-RFF 56
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
LDV++ + V D R+ G + +LVNNAGI+ + + R+ D+N+ F
Sbjct: 57 HLDVTDEDGWTAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDINLTGVFL 116
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 66.8 bits (163), Expect = 5e-14
Identities = 36/118 (30%), Positives = 61/118 (51%), Gaps = 12/118 (10%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+ ++ ++TG GIG+ + RL ++ S + +DI E N+ +K+
Sbjct: 4 LKDKVAIVTGGSQGIGKAVVNRLKEEGSNVINFDIKEPSYNDVDY------------FKV 51
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
DVSN+E+V++ D V + G + ILVNNAGI ++ + D + +VNV F
Sbjct: 52 DVSNKEQVIKGIDYVISKYGRIDILVNNAGIESYGAIHAVEEDEWDRIINVNVNGIFL 109
>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 = 66.5 bits (163), Expect = 5e-14
Identities = 30/86 (34%), Positives = 51/86 (59%), Gaps = 2/86 (2%)
Query: 44 LLTGLGNGIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
L+TG GIGR +A +L ++ + + + + E+G E + + G + DVS+R
Sbjct: 2 LVTGASRGIGRAIALKLAKEGAKVIITYRSSEEGAEEVVEELKAYGVKA-LGVVCDVSDR 60
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGI 128
E+V V +++ +E+G + ILVNNAGI
Sbjct: 61 EDVKAVVEEIEEELGPIDILVNNAGI 86
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 66.6 bits (163), Expect = 6e-14
Identities = 38/112 (33%), Positives = 57/112 (50%), Gaps = 2/112 (1%)
Query: 44 LLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
++T +GIG+ A L QQ + + W DE+G ET + G R +LD+S+
Sbjct: 6 IVTASDSGIGKACALLLAQQGFDIGITWHSDEEGAKETAEEVRSHGVRA-EIRQLDLSDL 64
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
E + DK+ + +G + +LVNNAG M P + D RK F V+V F
Sbjct: 65 PEGAQALDKLIQRLGRIDVLVNNAGAMTKAPFLDMDFDEWRKIFTVDVDGAF 116
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 66.1 bits (162), Expect = 7e-14
Identities = 25/92 (27%), Positives = 51/92 (55%), Gaps = 1/92 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+ ++I++TG G+GR +A+ L Q+ + D++++ E GT Y
Sbjct: 3 LKDKVIVITGGAQGLGRAMAEYLAQKGAKLALIDLNQEKLEEAVAECGALGTEV-RGYAA 61
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIM 129
+V++ E+V ++ ++ G++ L+NNAGI+
Sbjct: 62 NVTDEEDVEATFAQIAEDFGQLNGLINNAGIL 93
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 66.8 bits (163), Expect = 1e-13
Identities = 34/122 (27%), Positives = 57/122 (46%), Gaps = 10/122 (8%)
Query: 31 IPPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTR 90
P +E ++ +TG GIGR +A R + D D +G K++ E G
Sbjct: 263 SPLAES---PRVVAITGGARGIGRAVADRFAAAGDRLLIIDRDAEG---AKKLAEALGDE 316
Query: 91 TFH-TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDV 148
H + + D+++ V +++ G + +LVNNAGI KP EQ + + +DV
Sbjct: 317 --HLSVQADITDEAAVESAFAQIQARWGRLDVLVNNAGIAEVFKPSLEQSAEDFTRVYDV 374
Query: 149 NV 150
N+
Sbjct: 375 NL 376
Score = 51.8 bits (124), Expect = 2e-08
Identities = 24/118 (20%), Positives = 50/118 (42%), Gaps = 6/118 (5%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
+ ++L+TG GIGR +R + + D + + E G H +D
Sbjct: 4 QSRVVLVTGAAGGIGRAACQRFARAGDQVVVADRNVERARERAD---SLGPD-HHALAMD 59
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFDVNVLAHF 154
VS+ ++ +++ +E G + +LVNNAG+ + + + +N+ +
Sbjct: 60 VSDEAQIREGFEQLHREFGRIDVLVNNAGVTDPTMTATLDTTLEEFARLQAINLTGAY 117
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 66.0 bits (161), Expect = 1e-13
Identities = 27/93 (29%), Positives = 50/93 (53%), Gaps = 2/93 (2%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
K LE ++ ++TG GIG+ A L Q+ + + DI E + ++ G Y
Sbjct: 2 KRLENKVAVITGASTGIGQASAIALAQEGAYVLAVDIAEAVSETVDKIKSNGGKA--KAY 59
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
+D+S+ ++V A +++++ G V +L NNAG+
Sbjct: 60 HVDISDEQQVKDFASEIKEQFGRVDVLFNNAGV 92
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 64.7 bits (158), Expect = 3e-13
Identities = 35/120 (29%), Positives = 55/120 (45%), Gaps = 4/120 (3%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
K L+G +L+TG +GIGR +A+ + + D+ E T
Sbjct: 7 KPLDGLRVLVTGGASGIGRAIAEAFAEAGARVHVCDVSEAALAATAARLPGA---KVTAT 63
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHF 154
DV++ +V RV D + G + +LVNNAGI P ++E P+ +T VN+ F
Sbjct: 64 VADVADPAQVERVFDTAVERFGGLDVLVNNAGIAGPTGGIDEITPEQWEQTLAVNLNGQF 123
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 64.6 bits (158), Expect = 3e-13
Identities = 33/127 (25%), Positives = 56/127 (44%), Gaps = 24/127 (18%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNN------------ETKQMPE 85
++G+ L+TG +GIG ELAK+L +G N + E
Sbjct: 4 MKGKTALITGASSGIGAELAKQL------------ARRGYNLILVARREDKLEALAKELE 51
Query: 86 EQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKT 145
++ D+S+ E + R+ D++++ G + +LVNNAG P E D +
Sbjct: 52 DKTGVEVEVIPADLSDPEALERLEDELKERGGPIDVLVNNAGFGTFGPFLELSLDEEEEM 111
Query: 146 FDVNVLA 152
+N+LA
Sbjct: 112 IQLNILA 118
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 64.1 bits (156), Expect = 4e-13
Identities = 38/119 (31%), Positives = 53/119 (44%), Gaps = 13/119 (10%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDI------DEKGNNETKQMPEEQGTRTFHTYK 96
+L+TG GIGR A L + W + D ET G R
Sbjct: 5 VLITGASRGIGRATA-VLAAARG----WSVGINYARDAAAAEETADAVRAAGGRAC-VVA 58
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 154
DV+N +V+ + D V+ G + LVNNAGI+ P PL + +R+ FD NVL +
Sbjct: 59 GDVANEADVIAMFDAVQSAFGRLDALVNNAGIVAPSMPLADMDAARLRRMFDTNVLGAY 117
>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 = 63.8 bits (156), Expect = 7e-13
Identities = 35/117 (29%), Positives = 58/117 (49%), Gaps = 5/117 (4%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G+++++TG +GIG+E A+ L ++ + C + EKG ++ +E G +L
Sbjct: 1 GKVVVITGANSGIGKETARELAKRGAHVIIACRNE-EKGEEAAAEIKKETGNAKVEVIQL 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+S+ V + A++ + IL+NNAGIM D F VN L HF
Sbjct: 60 DLSSLASVRQFAEEFLARFPRLDILINNAGIMAPP--RRLTKDGFELQFAVNYLGHF 114
>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 = 63.1 bits (154), Expect = 9e-13
Identities = 26/115 (22%), Positives = 50/115 (43%), Gaps = 3/115 (2%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
E +IIL+TG IG+ K L + + DI+ + K+ +LD
Sbjct: 1 EDKIILITGAAGLIGKAFCKALLSAGARLILADINAPALEQLKEELTNLYKNRVIALELD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMP---CKPLNEQKPDVIRKTFDVNV 150
++++E + + + ++ G + IL+NNA P E + + +VN+
Sbjct: 61 ITSKESIKELIESYLEKFGRIDILINNAYPSPKVWGSRFEEFPYEQWNEVLNVNL 115
>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 = 63.1 bits (154), Expect = 9e-13
Identities = 36/113 (31%), Positives = 59/113 (52%), Gaps = 5/113 (4%)
Query: 43 ILLTGLGNGIGRELAKRLFQ--QKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
I+LTG GIGR LA+ L + S+ + E+ E K+ E + T K D+S
Sbjct: 2 IILTGASRGIGRALAEELLKRGSPSVVVLLARSEEPLQELKE--ELRPGLRVTTVKADLS 59
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 152
+ V ++ + +RK GE +L+NNAG + P + D ++K FD+N+ +
Sbjct: 60 DAAGVEQLLEAIRKLDGERDLLINNAGSLGPVSKIEFIDLDELQKYFDLNLTS 112
>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 = 62.9 bits (153), Expect = 1e-12
Identities = 34/114 (29%), Positives = 46/114 (40%), Gaps = 10/114 (8%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMC--WDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
I +TG +GIGRE A F + W +DIDE G + E G LDV+
Sbjct: 3 IFITGAASGIGRETALL-FARNG-WFVGLYDIDEDG---LAALAAELGAENVVAGALDVT 57
Query: 101 NREEVLRVA--DKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+R A D G + L NNAG+ P + + D+NV
Sbjct: 58 DRAA-WAAALADFAAATGGRLDALFNNAGVGRGGPFEDVPLAAHDRMVDINVKG 110
>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 = 62.7 bits (153), Expect = 1e-12
Identities = 34/122 (27%), Positives = 59/122 (48%), Gaps = 13/122 (10%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
L G +L+TG +GIG LA++ + ++ + +E+ K++P HT
Sbjct: 1 MKLTGNTVLITGGTSGIGLALARKFLEAGNTVIITGRREERLAEAKKELP------NIHT 54
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKP----DVIRKTFDVNV 150
LDV + E V +A+ + E + IL+NNAGI +P++ + P D D N+
Sbjct: 55 IVLDVGDAESVEALAEALLSEYPNLDILINNAGIQ--RPIDLRDPASDLDKADTEIDTNL 112
Query: 151 LA 152
+
Sbjct: 113 IG 114
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 62.7 bits (153), Expect = 1e-12
Identities = 31/115 (26%), Positives = 51/115 (44%), Gaps = 4/115 (3%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
L+G++ LLTG +GIG +A+R + + + DI E G
Sbjct: 2 MRLQGKVALLTGAASGIGEAVAERYLAEGARVVIADIKPARARLAA---LEIGPAAI-AV 57
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
LDV+ ++ + R+ + G + IL NNA + P+ + D + F VNV
Sbjct: 58 SLDVTRQDSIDRIVAAAVERFGGIDILFNNAALFDMAPILDISRDSYDRLFAVNV 112
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 62.8 bits (153), Expect = 2e-12
Identities = 36/118 (30%), Positives = 63/118 (53%), Gaps = 10/118 (8%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI--DEKGNN--ETKQMPEEQGTRTF 92
SL+G++ ++TG G+G+ A L + + DI G N ET+++ E++G R
Sbjct: 12 SLDGKVAIVTGGNTGLGQGYAVALAKAGA-----DIIITTHGTNWDETRRLIEKEG-RKV 65
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
++D++ E +V + +E G++ ILVNNAG + PL E K + D+N+
Sbjct: 66 TFVQVDLTKPESAEKVVKEALEEFGKIDILVNNAGTIRRAPLLEYKDEDWNAVMDINL 123
>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 = 62.4 bits (152), Expect = 2e-12
Identities = 35/118 (29%), Positives = 58/118 (49%), Gaps = 2/118 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L+G++ L+TG +GIG+ +A RL + + + + E E + + G + +
Sbjct: 1 LKGKVALVTGASSGIGKAIAIRLATAGANVVVNYRSKEDAAEEVVEEIKAVGGKAI-AVQ 59
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DVS E+V+ + KE G + ILVNNAG+ +E + K DVN+ F
Sbjct: 60 ADVSKEEDVVALFQSAIKEFGTLDILVNNAGLQGDASSHEMTLEDWNKVIDVNLTGQF 117
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 62.5 bits (152), Expect = 2e-12
Identities = 30/118 (25%), Positives = 53/118 (44%), Gaps = 2/118 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L ++ ++TG GIG +A+RL ++ + + +E E G R +
Sbjct: 3 LSNKVAIVTGASRGIGAAIARRLAADGFAVAVNYAGSAAAADELVAEIEAAGGRAI-AVQ 61
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DV++ V R+ D G + +LVNNAG+MP + + + +T N+ F
Sbjct: 62 ADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATNLRGAF 119
>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 = 60.9 bits (148), Expect = 5e-12
Identities = 33/93 (35%), Positives = 52/93 (55%), Gaps = 3/93 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
SLEG++ L+TG G+G+ +A L + + + E +ET+Q E G R F +
Sbjct: 2 SLEGKVALVTGANTGLGQGIAVGLAEAGADIVGAGRSEP--SETQQQVEALG-RRFLSLT 58
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM 129
D+S+ E + + D +E G + ILVNNAGI+
Sbjct: 59 ADLSDIEAIKALVDSAVEEFGHIDILVNNAGII 91
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 61.1 bits (149), Expect = 6e-12
Identities = 30/117 (25%), Positives = 59/117 (50%), Gaps = 1/117 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G++ L+TG +GIG E+A L ++ + + D++++ + ++ G + +
Sbjct: 2 LKGKVALVTGAASGIGLEIALALAKEGAKVVIADLNDEAAAAAAEALQKAGGKAIG-VAM 60
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DV++ E + D + G V ILVNNAGI P+ + + +K + + F
Sbjct: 61 DVTDEEAINAGIDYAVETFGGVDILVNNAGIQHVAPIEDFPTEKWKKMIAIMLDGAF 117
>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 = 60.3 bits (147), Expect = 8e-12
Identities = 30/124 (24%), Positives = 50/124 (40%), Gaps = 21/124 (16%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQ------------KSLWMCWDIDEKGNNETKQMPEEQ 87
G+ +L+TG +GIG+ LAK L ++ K +I E N + Q
Sbjct: 1 GKHVLITGGSSGIGKALAKELVKEGANVIIVARSESKLEEAVEEI-EAEANASGQ----- 54
Query: 88 GTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFD 147
D+S+ EEV + + ++ G ++VN AGI + + + D
Sbjct: 55 ---KVSYISADLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPGLFEDLTAEEFERGMD 111
Query: 148 VNVL 151
VN
Sbjct: 112 VNYF 115
>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 = 60.2 bits (146), Expect = 1e-11
Identities = 29/108 (26%), Positives = 48/108 (44%), Gaps = 8/108 (7%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
+++TG GIGR +A+ L Q + + D+ + E G LDV++
Sbjct: 1 VIVTGAAQGIGRAVARHLLQAGATVIALDLPF-------VLLLEYG-DPLRLTPLDVADA 52
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
V V ++ E G + LVN AG++ + + +TF VNV
Sbjct: 53 AAVREVCSRLLAEHGPIDALVNCAGVLRPGATDPLSTEDWEQTFAVNV 100
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 59.4 bits (144), Expect = 3e-11
Identities = 30/100 (30%), Positives = 51/100 (51%), Gaps = 1/100 (1%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
SL G+ IL+TG GIG LA L + + + DI + ++G + H
Sbjct: 6 SLAGKNILITGSAQGIGFLLATGLAEYGAEIIINDITAERAELAVAKLRQEGIKA-HAAP 64
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNE 136
+V++++EV + + K++G + +L+NNAGI P E
Sbjct: 65 FNVTHKQEVEAAIEHIEKDIGPIDVLINNAGIQRRHPFTE 104
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 58.8 bits (143), Expect = 4e-11
Identities = 33/117 (28%), Positives = 50/117 (42%), Gaps = 2/117 (1%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
G+++++TG GIGR LA RL + + + +E Q + G DV
Sbjct: 1 GKVVIITGASEGIGRALAVRLARAGAQLVLAARNETRLASLAQELADHGGEAL-VVPTDV 59
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQK-PDVIRKTFDVNVLAHFW 155
S+ E R+ + G + ILVNNAGI +E V + VN L +
Sbjct: 60 SDAEACERLIEAAVARFGGIDILVNNAGITMWSRFDELTDLSVFERVMRVNYLGAVY 116
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 58.9 bits (143), Expect = 4e-11
Identities = 36/131 (27%), Positives = 59/131 (45%), Gaps = 25/131 (19%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI---DEKGNNETKQMPEEQGTRTFH 93
+L+G+II++TG +GIG + K L + + DI D + N +
Sbjct: 6 NLQGKIIIVTGGSSGIGLAIVKELLANGANVVNADIHGGDGQHEN-------------YQ 52
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPD--------VIRK 144
DVS+ EEV ++ ++ G + LVNNAGI +P ++E+ P K
Sbjct: 53 FVPTDVSSAEEVNHTVAEIIEKFGRIDGLVNNAGINIPRLLVDEKDPAGKYELNEAAFDK 112
Query: 145 TFDVNVLAHFW 155
F++N F
Sbjct: 113 MFNINQKGVFL 123
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 58.6 bits (142), Expect = 4e-11
Identities = 38/120 (31%), Positives = 57/120 (47%), Gaps = 8/120 (6%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN----NETKQMPEEQGTRTF 92
SL+ +++++TG G GIGR +A RL ++ SL + ++ K NET +M +E G
Sbjct: 3 SLKDKVVVVTGSGRGIGRAIAVRLAKEGSLVV---VNAKKRAEEMNETLKMVKENGGEGI 59
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
DVS RE +A G ILVNNAG+ P +I K + +
Sbjct: 60 -GVLADVSTREGCETLAKATIDRYGVADILVNNAGLGLFSPFLNVDDKLIDKHISTDFKS 118
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 58.6 bits (142), Expect = 5e-11
Identities = 30/113 (26%), Positives = 44/113 (38%), Gaps = 2/113 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G + ++TG G+GIGR AK ++ + + D D + G
Sbjct: 3 LAGRVAIVTGAGSGIGRATAKLFAREGARVVVADRDAEAAERVAAAIAAGGRAFARQ--G 60
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV + E V + D V G + +LVNNAG + VNV
Sbjct: 61 DVGSAEAVEALVDFVAARWGRLDVLVNNAGFGCGGTVVTTDEADWDAVMRVNV 113
>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 = 58.6 bits (142), Expect = 5e-11
Identities = 34/121 (28%), Positives = 56/121 (46%), Gaps = 13/121 (10%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQ-QKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
G IL+TG +GIG LAKR + ++ +C G NE + + HT
Sbjct: 2 KTTGNTILITGGASGIGLALAKRFLELGNTVIIC------GRNEERLAEAKAENPEIHTE 55
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN----EQKPDVIRKTFDVNVL 151
DV++R+ + + ++KE + +L+NNAGI + + E D + N+L
Sbjct: 56 VCDVADRDSRRELVEWLKKEYPNLNVLINNAGIQ--RNEDLTGAEDLLDDAEQEIATNLL 113
Query: 152 A 152
A
Sbjct: 114 A 114
>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 = 57.7 bits (140), Expect = 7e-11
Identities = 30/118 (25%), Positives = 52/118 (44%), Gaps = 12/118 (10%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDI------DEKGNNETKQMPEEQGTRTFHTYKL 97
L+TG GIG+ +A RL ++ + D+ + E EE G + +
Sbjct: 2 LVTGGSRGIGKAIALRLAERGA-----DVVINYRKSKDAAAEVAAEIEELGGKAV-VVRA 55
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
DVS ++V + V++ G + +LV+NA +PL+E P + N+ A
Sbjct: 56 DVSQPQDVEEMFAAVKERFGRLDVLVSNAAAGAFRPLSELTPAHWDAKMNTNLKALVH 113
>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 = 58.1 bits (141), Expect = 8e-11
Identities = 36/126 (28%), Positives = 63/126 (50%), Gaps = 5/126 (3%)
Query: 33 PSEKSLEGEIILLTGLGNGIGRELAKRLFQQKS--LWMCWDIDEKGNNETKQMPEEQGTR 90
S K L+G+ L+TG +GIGR +A ++ + +E ETK++ EE+G +
Sbjct: 20 GSGK-LKGKKALITGGDSGIGRAVAIAFAREGADVAINYLPEEEDDAEETKKLIEEEGRK 78
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVN 149
D+ + + +V KE G++ ILVNNA P + + + + + KTF N
Sbjct: 79 CL-LIPGDLGDESFCRDLVKEVVKEFGKLDILVNNAAYQHPQESIEDITTEQLEKTFRTN 137
Query: 150 VLAHFW 155
+ + F+
Sbjct: 138 IFSMFY 143
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 57.2 bits (139), Expect = 1e-10
Identities = 33/126 (26%), Positives = 52/126 (41%), Gaps = 30/126 (23%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKG---------NNETKQMPEEQ 87
++G+++L+TG GIGR ++L +G + E+ +
Sbjct: 3 DIKGKVVLVTGANRGIGRAFVEQLL------------ARGAAKVYAAARDPESV---TDL 47
Query: 88 GTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTF 146
G R +LDV++ V A+ +VTILVNNAGI L E D +R
Sbjct: 48 GPRV-VPLQLDVTDPASVAAAAEAA----SDVTILVNNAGIFRTGSLLLEGDEDALRAEM 102
Query: 147 DVNVLA 152
+ N
Sbjct: 103 ETNYFG 108
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 57.4 bits (139), Expect = 1e-10
Identities = 30/121 (24%), Positives = 53/121 (43%), Gaps = 10/121 (8%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L G++ ++TG +GIG +A+ + + D E + ++ +
Sbjct: 12 DLSGKVAVVTGGASGIGHAIAELFAAKGARVALLDRSE----DVAEVAAQLLGGNAKGLV 67
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKP---LNEQKPDVIRKTFDVNVLAH 153
DVS+ + V V G + ILVN+AG+ P ++E+ D KT D+N+
Sbjct: 68 CDVSDSQSVEAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWD---KTIDINLKGS 124
Query: 154 F 154
F
Sbjct: 125 F 125
>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 = 56.6 bits (137), Expect = 2e-10
Identities = 35/115 (30%), Positives = 56/115 (48%), Gaps = 5/115 (4%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
LEG++ ++TG G+G G +A+R Q+ + + DI+ G E +
Sbjct: 2 RLEGKVAIVTGAGSGFGEGIARRFAQEGARVVIADINADGAERVAADIGEAA----IAIQ 57
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNV 150
DV+ R +V + + + G + ILVNNAGI KP+ E + + F VNV
Sbjct: 58 ADVTKRADVEAMVEAALSKFGRLDILVNNAGITHRNKPMLEVDEEEFDRVFAVNV 112
>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 = 56.4 bits (137), Expect = 3e-10
Identities = 36/119 (30%), Positives = 62/119 (52%), Gaps = 8/119 (6%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMC---WDIDEKGNNETKQMPEEQGTRTFH 93
L+G+++++TG +GIG ELA L + L + + E+ +E ++ G + H
Sbjct: 1 LQGKVVIITGASSGIGEELAYHLARLGARLVLSARREERLEEVKSECLEL----GAPSPH 56
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
LD+S+ E+ +V ++ K G + IL+NNAGI ++ DV RK +VN
Sbjct: 57 VVPLDMSDLEDAEQVVEEALKLFGGLDILINNAGISMRSLFHDTSIDVDRKIMEVNYFG 115
>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 = 55.9 bits (135), Expect = 3e-10
Identities = 27/117 (23%), Positives = 55/117 (47%), Gaps = 14/117 (11%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ--KSLWM-CWDIDEKGNNETKQMPEEQGTRTFHT 94
++ + +L+TG GIG+ + L K ++ D + + G +
Sbjct: 1 IKDKTVLVTGANRGIGKAFVESLLAHGAKKVYAAVRDPGS-----AAHLVAKYGDKV-VP 54
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNV 150
+LDV++ E + A + + +V +++NNAG++ P L E + +++ DVNV
Sbjct: 55 LRLDVTDPESIKAAAAQAK----DVDVVINNAGVLKPATLLEEGALEALKQEMDVNV 107
>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 = 55.7 bits (134), Expect = 5e-10
Identities = 30/118 (25%), Positives = 52/118 (44%), Gaps = 4/118 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G+ L+TG GIGR A+ ++ + DI+ + T E G L
Sbjct: 1 LDGKTALITGSARGIGRAFAQAYVREGARVAIADINLEAARATAA---EIGPAAC-AISL 56
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
DV+++ + R + G + ILVNNA + P+ + + + F +NV +
Sbjct: 57 DVTDQASIDRCVAALVDRWGSIDILVNNAALFDLAPIVDITRESYDRLFAINVSGTLF 114
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 55.2 bits (133), Expect = 7e-10
Identities = 32/115 (27%), Positives = 58/115 (50%), Gaps = 2/115 (1%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-DEKGNNETKQMPEEQGTRTFHTY 95
L+G++ +TG G+GIG+ +A L Q + +D+ + G ET + E G R
Sbjct: 5 DLDGQVAFVTGAGSGIGQRIAIGLAQAGADVALFDLRTDDGLAETAEHIEAAGRRAIQ-I 63
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV+++ ++ + E+G +T+ VN AGI P E + + + D+N+
Sbjct: 64 AADVTSKADLRAAVARTEAELGALTLAVNAAGIANANPAEEMEEEQWQTVMDINL 118
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 54.9 bits (132), Expect = 9e-10
Identities = 31/98 (31%), Positives = 51/98 (52%), Gaps = 1/98 (1%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
+L G+ ++TG +GIG+E+A L + + D+++ G N + G +
Sbjct: 4 NLNGKTAVVTGAASGIGKEIALELARAGAAVAIADLNQDGANAVADEINKAGGKAIG-VA 62
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPL 134
+DV+N + V DKV + G V ILV+NAGI P+
Sbjct: 63 MDVTNEDAVNAGIDKVAERFGSVDILVSNAGIQIVNPI 100
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 55.3 bits (134), Expect = 1e-09
Identities = 29/121 (23%), Positives = 51/121 (42%), Gaps = 11/121 (9%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-----DEKGNNETKQMPEEQGTR 90
K + +++++TG G+GR A R F ++ + E+G G
Sbjct: 4 KPIGRQVVVITGASAGVGRATA-RAFARRG----AKVVLLARGEEGLEALAAEIRAAGGE 58
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV++ E V AD+ +E+G + VNNA + P + P+ R+ +V
Sbjct: 59 AL-AVVADVADAEAVQAAADRAEEELGPIDTWVNNAMVTVFGPFEDVTPEEFRRVTEVTY 117
Query: 151 L 151
L
Sbjct: 118 L 118
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A; Provisional.
Length = 256
Score = 54.6 bits (132), Expect = 1e-09
Identities = 25/91 (27%), Positives = 48/91 (52%), Gaps = 1/91 (1%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK-QMPEEQGTRTFHTY 95
L+G+ IL+TG G IG L K + + + + DID++ NE + +E ++
Sbjct: 1 MLKGKTILITGAGGLIGSALVKAILEAGGIVIAADIDKEALNELLESLGKEFKSKKLSLV 60
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNA 126
+LD++++E + K ++ G++ VN A
Sbjct: 61 ELDITDQESLEEFLSKSAEKYGKIDGAVNCA 91
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 54.4 bits (131), Expect = 1e-09
Identities = 31/93 (33%), Positives = 46/93 (49%), Gaps = 6/93 (6%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G + ++TG G+GIG A+RL + + + DID + K +E G T
Sbjct: 5 LAGRVAVITGGGSGIGLATARRLAAEGATVVVGDIDPEAG---KAAADEVGGLFVPT--- 58
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMP 130
DV++ + V + D + G V I NNAGI P
Sbjct: 59 DVTDEDAVNALFDTAAETYGSVDIAFNNAGISP 91
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 54.4 bits (131), Expect = 1e-09
Identities = 32/111 (28%), Positives = 56/111 (50%), Gaps = 7/111 (6%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
++L+TG +GIGR LA + + + W K + E F +LDV++
Sbjct: 3 VVLITGCSSGIGRALADAF--KAAGYEVWATARKAEDV-----EALAAAGFTAVQLDVND 55
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+ R+A+++ E G + +L+NNAG PL + + +R+ F+ NV A
Sbjct: 56 GAALARLAEELEAEHGGLDVLINNAGYGAMGPLLDGGVEAMRRQFETNVFA 106
>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 = 54.2 bits (131), Expect = 2e-09
Identities = 28/113 (24%), Positives = 50/113 (44%), Gaps = 3/113 (2%)
Query: 44 LLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
L+T +GIG +A+ L ++ + +C + + G D+++
Sbjct: 5 LVTAASSGIGLAIARALAREGARVAIC-ARNRENLERAASELRAGGAG-VLAVVADLTDP 62
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
E++ R+ +K G V ILVNNAG P P E + + FD+ +L+
Sbjct: 63 EDIDRLVEKAGDAFGRVDILVNNAGGPPPGPFAELTDEDWLEAFDLKLLSVIR 115
>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 = 53.5 bits (129), Expect = 2e-09
Identities = 27/114 (23%), Positives = 44/114 (38%), Gaps = 5/114 (4%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+ L+TG GIG E+A+ L + + + N D +
Sbjct: 2 VALVTGASRGIGIEIARALARDG-----YRVSLGLRNPEDLAALSASGGDVEAVPYDARD 56
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
E+ + D +R G + +LV+NAGI L E + F +NV+A
Sbjct: 57 PEDARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSINVIAPAE 110
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 54.1 bits (130), Expect = 2e-09
Identities = 35/117 (29%), Positives = 62/117 (52%), Gaps = 2/117 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G+ ++TG G GIG+E+A + + DI+ N ++ G + F +
Sbjct: 9 LDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAF-ACRC 67
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ +E+ +AD ++G+V ILVNNAG KP + D R +++NV + F
Sbjct: 68 DITSEQELSALADFALSKLGKVDILVNNAGGGGPKPFDMPMADFRR-AYELNVFSFF 123
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 53.9 bits (130), Expect = 2e-09
Identities = 36/126 (28%), Positives = 57/126 (45%), Gaps = 23/126 (18%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQ-----------KSLWMCWDIDEKGNNETKQMPE 85
SL+G+ L+TG G GIGR +A L ++ ++L + E +
Sbjct: 4 SLQGKNALITGAGRGIGRAVAIALAKEGVNVGLLARTEENL-------KAVAEEVEAYGV 56
Query: 86 EQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKT 145
+ T DVS+ EEV ++++ E+G + IL+NNAGI E P K
Sbjct: 57 KVVIATA-----DVSDYEEVTAAIEQLKNELGSIDILINNAGISKFGKFLELDPAEWEKI 111
Query: 146 FDVNVL 151
VN++
Sbjct: 112 IQVNLM 117
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 54.0 bits (130), Expect = 2e-09
Identities = 28/114 (24%), Positives = 47/114 (41%), Gaps = 4/114 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G+ L+TG GIG +A+ + + + DI + ++ G R
Sbjct: 4 LTGKTALITGALQGIGEGIARVFARHGANLILLDISPEIEKLADELCGR-GHRCT-AVVA 61
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRK-TFDVNV 150
DV + V + +++ G + ILVNNAG+ D R D+N+
Sbjct: 62 DVRDPASVAAAIKRAKEKEGRIDILVNNAGVCRLGSF-LDMSDEDRDFHIDINI 114
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 53.6 bits (129), Expect = 3e-09
Identities = 32/120 (26%), Positives = 61/120 (50%), Gaps = 2/120 (1%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
LEG+++++TG G+GR +A R ++K + + + DE+ N+ + ++ G
Sbjct: 3 SDLEGKVVVITGGSTGLGRAMAVRFGKEKAKVVINYRSDEEEANDVAEEIKKAGGEAI-A 61
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
K DV+ +V+ + KE G + +++NNAGI P +E + K + N+ F
Sbjct: 62 VKGDVTVESDVVNLIQTAVKEFGTLDVMINNAGIENAVPSHEMSLEDWNKVINTNLTGAF 121
>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 = 53.0 bits (128), Expect = 3e-09
Identities = 33/116 (28%), Positives = 56/116 (48%), Gaps = 7/116 (6%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSL--WMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
++ L+TG GIG E+ ++L + + E+G +++ E + FH +LD
Sbjct: 1 KVALVTGANRGIGFEIVRQLAKSGPGTVILTARDVERGQAAVEKLRAEGLSVRFH--QLD 58
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPD--VIRKTFDVNVLA 152
V++ + AD V ++ G + ILVNNAGI K ++ P R+T N
Sbjct: 59 VTDDASIEAAADFVEEKYGGLDILVNNAGIAF-KGFDDSTPTREQARETMKTNFFG 113
>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 = 53.1 bits (128), Expect = 4e-09
Identities = 29/113 (25%), Positives = 50/113 (44%), Gaps = 3/113 (2%)
Query: 42 IILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
+L+TG +GIG A+R + L + E+ ++ + +LDVS
Sbjct: 2 TVLITGASSGIGEATARRFAKAGAKLILTGRRAERLQELADELGAKFPV-KVLPLQLDVS 60
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLA 152
+RE + + + +E ++ ILVNNAG+ + P E + D NV
Sbjct: 61 DRESIEAALENLPEEFRDIDILVNNAGLALGLDPAQEADLEDWETMIDTNVKG 113
>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 = 52.5 bits (126), Expect = 5e-09
Identities = 30/115 (26%), Positives = 58/115 (50%), Gaps = 3/115 (2%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L+G++ L+TG +GIG A+ L + ++ + ++ ++ E G +
Sbjct: 1 LQGKVALVTGASSGIGEATARALAAEGAAVAIAARRVDRLEALADELEAEGGK--ALVLE 58
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
LDV++ ++V ++ + +G + ILVNNAGIM P+ + + D N+L
Sbjct: 59 LDVTDEQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLL 113
>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 = 52.5 bits (126), Expect = 6e-09
Identities = 30/112 (26%), Positives = 45/112 (40%), Gaps = 4/112 (3%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNRE 103
L+TG GIG A+ L + DE ++ DV +
Sbjct: 4 LVTGASRGIGEATARLLHAEGYRVGICARDEA---RLAAAAAQELEGV-LGLAGDVRDEA 59
Query: 104 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
+V R D + + G + LVNNAG+ KP+ E P+ R D N+ F+
Sbjct: 60 DVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEELTPEEWRLVLDTNLTGAFY 111
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 52.1 bits (125), Expect = 9e-09
Identities = 33/124 (26%), Positives = 51/124 (41%), Gaps = 13/124 (10%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK------QMPEEQGTR 90
L G L+TG GIG LA+ L Q + ++ G + K +
Sbjct: 7 DLTGRRALVTGSSQGIGYALAEGLAQAGA-----EVILNGRDPAKLAAAAESLKG--QGL 59
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ H DV++ + V D E+G + ILVNNAG+ PL + D + N+
Sbjct: 60 SAHALAFDVTDHDAVRAAIDAFEAEIGPIDILVNNAGMQFRTPLEDFPADAFERLLRTNI 119
Query: 151 LAHF 154
+ F
Sbjct: 120 SSVF 123
>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 = 52.1 bits (125), Expect = 9e-09
Identities = 32/115 (27%), Positives = 55/115 (47%), Gaps = 7/115 (6%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNE-TKQMPEEQGTRTFHTYK 96
LEG++ ++TG G GIG A RL ++ + + DID Q+
Sbjct: 1 LEGKVAIVTGAGAGIGAACAARLAREGARVVVADIDGGAAQAVVAQIAGGALALR----- 55
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKP-DVIRKTFDVNV 150
+DV++ ++V + ++ +E G + +LVNNAG M P V +T +N+
Sbjct: 56 VDVTDEQQVAALFERAVEEFGGLDLLVNNAGAMHLTPAIIDTDLAVWDQTMAINL 110
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 52.0 bits (125), Expect = 9e-09
Identities = 29/119 (24%), Positives = 50/119 (42%), Gaps = 3/119 (2%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
SL G++ L+TG G+G E+A+ L + + + + G
Sbjct: 8 SLAGQVALVTGSARGLGFEIARALAGAGAHVLVNGRNAATLEAAVAALRAAGGAAE--AL 65
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ E V ++ E G + ILVNN G +PL E IR + +++A
Sbjct: 66 AFDIADEEAVAAAFARIDAEHGRLDILVNNVGARDRRPLAELDDAAIRALLETDLVAPI 124
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 51.9 bits (125), Expect = 1e-08
Identities = 29/117 (24%), Positives = 58/117 (49%), Gaps = 4/117 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L+G++++++G+G G+GR LA R + + + E+ + ++ ++ G R
Sbjct: 3 LKGKVVVVSGVGPGLGRTLAVRAARAGADVVLAARTAERLDEVAAEI-DDLGRRALAV-P 60
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLA 152
D+++ ++ + + G V LVNNA +P KPL + R ++NVL
Sbjct: 61 TDITDEDQCANLVALALERFGRVDALVNNAFRVPSMKPLADADFAHWRAVIELNVLG 117
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 52.0 bits (125), Expect = 1e-08
Identities = 26/109 (23%), Positives = 51/109 (46%), Gaps = 2/109 (1%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDI-DEKGNNET-KQMPEEQGTRTFHTYKLDVSN 101
+TG G+GR +A+R+ +Q + DI D G + ++ G DV++
Sbjct: 3 FITGAAGGLGRAIARRMAEQGAKVFLTDINDAAGLDAFAAEINAAHGEGVAFAAVQDVTD 62
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ + + +G +++LVNNAG+ + + + D R+ +NV
Sbjct: 63 EAQWQALLAQAADAMGGLSVLVNNAGVGSFGAIEQIELDEWRRVMAINV 111
>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 = 51.6 bits (124), Expect = 1e-08
Identities = 24/115 (20%), Positives = 47/115 (40%), Gaps = 4/115 (3%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCW--DIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
+ + G G+G+G +A+R + + + + G D
Sbjct: 1 VAAVVGAGDGLGAAIARRFAAEGFSVALAARREAKLEALLV-DIIRDAGGSA-KAVPTDA 58
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ +EV+ + D + +E+G + +LV NAG P+ E P V K +++ F
Sbjct: 59 RDEDEVIALFDLIEEEIGPLEVLVYNAGANVWFPILETTPRVFEKVWEMAAFGGF 113
>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 = 51.7 bits (124), Expect = 1e-08
Identities = 32/117 (27%), Positives = 57/117 (48%), Gaps = 10/117 (8%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
+G++ L+T GIGR +A ++ + + DI NE K E+G T LD
Sbjct: 1 DGKVALITAAAQGIGRAIALAFAREGANVIATDI-----NEEKLKELERGPG-ITTRVLD 54
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
V+++E+V +A KE G + +L N AG + + + + D ++NV + +
Sbjct: 55 VTDKEQVAALA----KEEGRIDVLFNCAGFVHHGSILDCEDDDWDFAMNLNVRSMYL 107
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 51.5 bits (124), Expect = 2e-08
Identities = 30/117 (25%), Positives = 52/117 (44%), Gaps = 1/117 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G+ L+TG G+G ++A+ L + + + + E E G
Sbjct: 10 LSGKTALVTGGSRGLGLQIAEALGEAGARVVLSARKAEELEEAAAHLEALGIDA-LWIAA 68
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DV++ ++ R+A++ + G V ILVNNAG P + + K ++NV F
Sbjct: 69 DVADEADIERLAEETLERFGHVDILVNNAGATWGAPAEDHPVEAWDKVMNLNVRGLF 125
>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 = 51.0 bits (122), Expect = 2e-08
Identities = 34/120 (28%), Positives = 57/120 (47%), Gaps = 3/120 (2%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L IIL+TG +GIGRE A + + + +E+ + E+G R + L
Sbjct: 2 LNDRIILVTGASDGIGREAALTYARYGATVILLGRNEEKLRQVADHINEEGGRQPQWFIL 61
Query: 98 DVSN--REEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 154
D+ E ++A ++ + +++NAG++ PL+EQ P V + VNV A F
Sbjct: 62 DLLTCTSENCQQLAQRIAVNYPRLDGVLHNAGLLGDVCPLSEQNPQVWQDVXQVNVNATF 121
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 51.3 bits (123), Expect = 2e-08
Identities = 32/116 (27%), Positives = 53/116 (45%), Gaps = 6/116 (5%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHTYK 96
+ ++ ++TG GIG+ A+ L ++ + + DI+ E KQ+ + GT +
Sbjct: 4 FDDKVAIVTGAAGGIGQAYAEALAREGASVVVADINAEGAERVAKQIVADGGTAIA--VQ 61
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGI---MPCKPLNEQKPDVIRKTFDVN 149
+DVS+ + +AD G + LVNNA I M L D +K VN
Sbjct: 62 VDVSDPDSAKAMADATVSAFGGIDYLVNNAAIYGGMKLDLLITVPWDYYKKFMSVN 117
>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 = 51.0 bits (122), Expect = 2e-08
Identities = 26/114 (22%), Positives = 53/114 (46%), Gaps = 2/114 (1%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+ ++TG GIG+ +A L + + + D+ +G ++ G + + +V++
Sbjct: 1 VAIVTGGAAGIGKAIAGTLAKAGASVVIADLKSEGAEAVAAAIQQAGGQA-IGLECNVTS 59
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN-EQKPDVIRKTFDVNVLAHF 154
+++ V + G +TILVNNAG KP + + F +N+ + F
Sbjct: 60 EQDLEAVVKATVSQFGGITILVNNAGGGGPKPFDMPMTEEDFEWAFKLNLFSAF 113
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 51.5 bits (124), Expect = 2e-08
Identities = 26/92 (28%), Positives = 43/92 (46%), Gaps = 5/92 (5%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
L G+++L+TG +GIGR A ++ + + + + +E +G T H Y
Sbjct: 369 LVGKVVLITGASSGIGRATAIKVAEAGATVFLVARNGEAL--DELVAEIRAKGG-TAHAY 425
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
D+++ V + E G V LVNNAG
Sbjct: 426 TCDLTDSAAVDHTVKDILAEHGHVDYLVNNAG 457
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 50.9 bits (122), Expect = 2e-08
Identities = 31/116 (26%), Positives = 46/116 (39%), Gaps = 2/116 (1%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
+ G++ L+TG GIGR A ++ + + D D G ET + E G
Sbjct: 3 MTFSGKVALVTGGAAGIGRATALAFAREGAKVVVADRDAAGGEETVALIREAGGEALF-V 61
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFDVNV 150
DV+ EV + ++ G + NNAGI + L E VNV
Sbjct: 62 ACDVTRDAEVKALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEGSEAEFDAIMGVNV 117
>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 = 51.1 bits (123), Expect = 3e-08
Identities = 38/112 (33%), Positives = 57/112 (50%), Gaps = 9/112 (8%)
Query: 43 ILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
+L+TG +G G LAK+L L C + G E +++ ++ T +LDV+
Sbjct: 3 VLITGCDSGFGNLLAKKLDSLGFTVLAGCLTKNGPGAKELRRVCSDR----LRTLQLDVT 58
Query: 101 NREEVLRVADKVRKEVGEVTI--LVNNAGIMPCKPLNEQKP-DVIRKTFDVN 149
E++ R A V++ VGE + LVNNAGI+ E P D RK +VN
Sbjct: 59 KPEQIKRAAQWVKEHVGEKGLWGLVNNAGILGFGGDEELLPMDDYRKCMEVN 110
>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 = 51.0 bits (122), Expect = 3e-08
Identities = 32/117 (27%), Positives = 54/117 (46%), Gaps = 2/117 (1%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQ-MPEEQGTRTFHTYKLDV 99
+++L+TG G+G+G A RL ++ + D++E+G K + E K DV
Sbjct: 4 KVVLITGGGSGLGLATAVRLAKEGAKLSLVDLNEEGLEAAKAALLEIAPDAEVLLIKADV 63
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQ-KPDVIRKTFDVNVLAHFW 155
S+ +V D ++ G + NNAGI + L E D K +N+ F+
Sbjct: 64 SDEAQVEAYVDATVEQFGRIDGFFNNAGIEGKQNLTEDFGADEFDKVVSINLRGVFY 120
>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 = 50.9 bits (122), Expect = 3e-08
Identities = 31/91 (34%), Positives = 42/91 (46%), Gaps = 8/91 (8%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNE--TKQMPEEQGTRTFHTY--KL 97
I L+TG GIG + +RL + G NE + +EQG F +
Sbjct: 2 IALVTGGMGGIGTAICQRLAKDG----YRVAANCGPNEERAEAWLQEQGALGFDFRVVEG 57
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
DVS+ E KV E+G + +LVNNAGI
Sbjct: 58 DVSSFESCKAAVAKVEAELGPIDVLVNNAGI 88
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 50.7 bits (122), Expect = 3e-08
Identities = 27/117 (23%), Positives = 43/117 (36%), Gaps = 20/117 (17%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKG--------NNETKQMPEEQGTRTFH 93
L+TG+ +G GR LA+ G + + E
Sbjct: 6 TWLITGVSSGFGRALAQAALAA------------GHRVVGTVRSEAARADFEALHPDRAL 53
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
LDV++ + + V G + +LVNNAG + E +R+ F+VNV
Sbjct: 54 ARLLDVTDFDAIDAVVADAEATFGPIDVLVNNAGYGHEGAIEESPLAEMRRQFEVNV 110
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 50.6 bits (121), Expect = 4e-08
Identities = 29/115 (25%), Positives = 53/115 (46%), Gaps = 3/115 (2%)
Query: 42 IILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
I L+TG GIGR A L Q+ ++ + + + E + + G + F + D+S
Sbjct: 3 IALVTGGSRGIGRATALLLAQEGYTVAVNYQQNLHAAQEVVNLITQAGGKAF-VLQADIS 61
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQ-KPDVIRKTFDVNVLAHF 154
+ +V+ + + + + LVNNAGI+ + E + I + NV +F
Sbjct: 62 DENQVVAMFTAIDQHDEPLAALVNNAGILFTQCTVENLTAERINRVLSTNVTGYF 116
>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 = 50.5 bits (121), Expect = 4e-08
Identities = 31/120 (25%), Positives = 49/120 (40%), Gaps = 9/120 (7%)
Query: 35 EKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
E G+ L+TG G GIGR K L + + + + + + E
Sbjct: 2 ELDFAGKRALVTGAGKGIGRATVKALAKAGARVVAV---SRTQADLDSLVRE--CPGIEP 56
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+D+S+ + V G V +LVNNA + +P E + ++FDVNV A
Sbjct: 57 VCVDLSDWDATEEALGSV----GPVDLLVNNAAVAILQPFLEVTKEAFDRSFDVNVRAVI 112
>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 = 50.1 bits (120), Expect = 5e-08
Identities = 33/120 (27%), Positives = 52/120 (43%), Gaps = 7/120 (5%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCW-DIDEKGNNETKQMPEEQGTRTFHTYK 96
L+G++ ++TG +GIG A RLF + + DID+ + H
Sbjct: 2 LDGKVAIITGGASGIGEATA-RLFAKHGARVVIADIDDDAGQAVAAELGDPDISFVHC-- 58
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFDVNVLAHF 154
DV+ +V D G + I+ NNAG++ PC + E + + DVNV F
Sbjct: 59 -DVTVEADVRAAVDTAVARFGRLDIMFNNAGVLGAPCYSILETSLEEFERVLDVNVYGAF 117
>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 = 50.1 bits (120), Expect = 5e-08
Identities = 30/112 (26%), Positives = 51/112 (45%), Gaps = 1/112 (0%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
++++TG +GIGR A ++ + + + +E + E G DV++
Sbjct: 2 VVVITGASSGIGRATALAFAERGAKVVLAARSAEALHELAREVRELGGEAI-AVVADVAD 60
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 153
+V R AD + G + VNNAG+ + P+ R+ FDVN L H
Sbjct: 61 AAQVERAADTAVERFGRIDTWVNNAGVAVFGRFEDVTPEEFRRVFDVNYLGH 112
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 49.9 bits (120), Expect = 5e-08
Identities = 32/122 (26%), Positives = 52/122 (42%), Gaps = 11/122 (9%)
Query: 35 EKSLEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFH 93
L G ++L+TG GIG +A+ ++ +C G PE R
Sbjct: 1 NLDLTGRVVLVTGGTRGIGAGIARAFLAAGATVVVC------GRRA----PETVDGRPAE 50
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 153
+ DV + ++V + D + + G + +LVNNAG P E P K ++N+LA
Sbjct: 51 FHAADVRDPDQVAALVDAIVERHGRLDVLVNNAGGSPYALAAEASPRFHEKIVELNLLAP 110
Query: 154 FW 155
Sbjct: 111 LL 112
>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 = 49.8 bits (119), Expect = 5e-08
Identities = 30/126 (23%), Positives = 54/126 (42%), Gaps = 14/126 (11%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-------------DEKGNNETKQMP 84
LEG++ +TG G GR A RL + + + D+ + +ET ++
Sbjct: 1 LEGKVAFITGAARGQGRAHAVRLAAEGADIIAIDLCAPLSDYPTYPLATREDLDETARLV 60
Query: 85 EEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRK 144
E G + K DV + EV V + ++ G + ++V NAG++ E +
Sbjct: 61 EALGRKVL-ARKADVRDLAEVRAVVEDGVEQFGRLDVVVANAGVLSYGRSWELSEEQWDT 119
Query: 145 TFDVNV 150
D+N+
Sbjct: 120 VLDINL 125
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 49.8 bits (119), Expect = 6e-08
Identities = 33/116 (28%), Positives = 48/116 (41%), Gaps = 4/116 (3%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFH--TYKLD 98
+I L+TG GIG +A+ L + GN+ K EE G +LD
Sbjct: 3 KIALVTGAKRGIGSAIARELLNDGYRVIA--TYFSGNDCAKDWFEEYGFTEDQVRLKELD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
V++ EE ++ +E G V ILVNNAGI + N+ + F
Sbjct: 61 VTDTEECAEALAEIEEEEGPVDILVNNAGITRDSVFKRMSHQEWNDVINTNLNSVF 116
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 50.0 bits (120), Expect = 6e-08
Identities = 26/110 (23%), Positives = 56/110 (50%), Gaps = 3/110 (2%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCW-DIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+++TG +G+GR +A R + ++ + D++E+G ET ++ E G F+ DV +
Sbjct: 3 VMITGAASGLGRAIALR-WAREGWRLALADVNEEGGEETLKLLREAGGDGFYQR-CDVRD 60
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
++ +A ++ G + ++VNNAG+ E + +N++
Sbjct: 61 YSQLTALAQACEEKWGGIDVIVNNAGVASGGFFEELSLEDWDWQIAINLM 110
>gnl|CDD|180766 PRK06940, PRK06940, short chain dehydrogenase; Provisional.
Length = 275
Score = 50.0 bits (120), Expect = 6e-08
Identities = 29/90 (32%), Positives = 50/90 (55%), Gaps = 4/90 (4%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
E++++ G G GIG+ +A+R+ K + + D +E+ + E G T ++DVS
Sbjct: 3 EVVVVIGAG-GIGQAIARRVGAGKKVLLA-DYNEENLEAAAKTLREAGFDV-STQEVDVS 59
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGIMP 130
+RE V +A + +G VT LV+ AG+ P
Sbjct: 60 SRESVKALAATAQ-TLGPVTGLVHTAGVSP 88
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 49.6 bits (119), Expect = 8e-08
Identities = 25/117 (21%), Positives = 52/117 (44%), Gaps = 1/117 (0%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQ-MPEEQGTRTFHTYKL 97
++ ++ G G +G L L ++ DI+ + Q + E G + +
Sbjct: 1 MNQVAVVIGGGQTLGAFLCHGLAEEGYRVAVADINSEKAANVAQEINAEYGEGMAYGFGA 60
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D ++ + VL ++ V + G V +LV NAGI + + + ++ VN++ +F
Sbjct: 61 DATSEQSVLALSRGVDEIFGRVDLLVYNAGIAKAAFITDFQLGDFDRSLQVNLVGYF 117
>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 = 49.8 bits (119), Expect = 8e-08
Identities = 31/117 (26%), Positives = 58/117 (49%), Gaps = 5/117 (4%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G+ +++TG GIG+E A+ L ++ + + C D+ K ++ + L
Sbjct: 1 GKTVIITGANTGIGKETARELARRGARVIMACRDM-AKCEEAAAEIRRDTLNHEVIVRHL 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ + + A + E + +L+NNAG+M C P ++ + D F VN L HF
Sbjct: 60 DLASLKSIRAFAAEFLAEEDRLDVLINNAGVMRC-PYSKTE-DGFEMQFGVNHLGHF 114
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 49.4 bits (118), Expect = 8e-08
Identities = 35/120 (29%), Positives = 51/120 (42%), Gaps = 3/120 (2%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRL--FQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
L+G+ L+TG GIG +A+ L + D D ++ EE R H
Sbjct: 6 RLDGQTALITGASKGIGLAIAREFLGLGADVLIVARDADALAQARD-ELAEEFPEREVHG 64
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DVS+ E+ + D V + ILVNNAG K + D R F+ N+ + F
Sbjct: 65 LAADVSDDEDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAF 124
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 49.3 bits (118), Expect = 8e-08
Identities = 29/115 (25%), Positives = 49/115 (42%), Gaps = 5/115 (4%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEE-QGTRTFHTY 95
L G++ L+TG GIG +A+ ++ + D+D + + G R
Sbjct: 5 LAGKVALVTGAAQGIGAAIARAFAREGAAVALADLDAALAERAAAAIARDVAGARVLAV- 63
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVN 149
DV++ V + G + +LVNNAGI + PL + R+ F V+
Sbjct: 64 PADVTDAASVAAAVAAAEEAFGPLDVLVNNAGINVFADPL-AMTDEDWRRCFAVD 117
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 49.4 bits (118), Expect = 8e-08
Identities = 27/118 (22%), Positives = 50/118 (42%), Gaps = 3/118 (2%)
Query: 34 SEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFH 93
E SL+G+++ +TG G+GR A L + + I ++ +P
Sbjct: 1 MEHSLQGKVVAITGGFGGLGRATAAWLAARGARVAL--IGRGAAPLSQTLPGVPADAL-R 57
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
+D+ + + R D+V ++ G + LVN AG + + D + + VNV
Sbjct: 58 IGGIDLVDPQAARRAVDEVNRQFGRLDALVNIAGAFVWGTIADGDADTWDRMYGVNVK 115
>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 = 49.2 bits (118), Expect = 9e-08
Identities = 27/123 (21%), Positives = 55/123 (44%), Gaps = 13/123 (10%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-DEKGNNETKQMPEEQGTRTFHTYKL 97
+G + ++TG +G+G +RL Q + + D+ + G K R
Sbjct: 1 KGLVAVVTGGASGLGLATVERLLAQGAKVVILDLPNSPGETVAKL---GDNCRFVPV--- 54
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQK-----PDVIRKTFDVNVL 151
DV++ ++V + + G + I+VN AGI K N++ ++ ++ +VN++
Sbjct: 55 DVTSEKDVKAALALAKAKFGRLDIVVNCAGIAVAAKTYNKKGQQPHSLELFQRVINVNLI 114
Query: 152 AHF 154
F
Sbjct: 115 GTF 117
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 49.3 bits (118), Expect = 1e-07
Identities = 26/86 (30%), Positives = 40/86 (46%), Gaps = 2/86 (2%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK-LDVSNR 102
+TG +GIGR A RL Q + D D G +T G T ++ LD+S+
Sbjct: 4 FVTGAASGIGRATALRLAAQGAELFLTDRDADGLAQTVADARALGG-TVPEHRALDISDY 62
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGI 128
+ V A + G + +++N AGI
Sbjct: 63 DAVAAFAADIHAAHGSMDVVMNIAGI 88
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 48.8 bits (117), Expect = 1e-07
Identities = 32/118 (27%), Positives = 53/118 (44%), Gaps = 17/118 (14%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
+ +L+TG +GIG A R F + + +D++ P+ G FH +L
Sbjct: 3 FMTKTVLITGAASGIGLAQA-RAFLAQG-AQVYGVDKQ------DKPDLSGN--FHFLQL 52
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHF 154
D+S+ + + V V IL N AGI+ KPL + + + FD N+ + F
Sbjct: 53 DLSDD------LEPLFDWVPSVDILCNTAGILDDYKPLLDTSLEEWQHIFDTNLTSTF 104
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 49.2 bits (118), Expect = 1e-07
Identities = 31/123 (25%), Positives = 53/123 (43%), Gaps = 31/123 (25%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNN------------ETKQMPEEQGTR 90
IL+TG G+G GRE+A RL KG+N + +G
Sbjct: 5 ILITGAGSGFGREVALRL------------ARKGHNVIAGVQIAPQVTALRAEAARRGLA 52
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
KLD+++ + + A+ +V +L+NNAGI + + +++R+ F+ NV
Sbjct: 53 -LRVEKLDLTDAIDRAQAAEW------DVDVLLNNAGIGEAGAVVDIPVELVRELFETNV 105
Query: 151 LAH 153
Sbjct: 106 FGP 108
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 49.2 bits (118), Expect = 1e-07
Identities = 30/117 (25%), Positives = 49/117 (41%), Gaps = 23/117 (19%)
Query: 42 IILLTGLGNGIGRELAKRLFQQ--------KSLWMCWDIDEKGNNETKQMPEEQGTRTFH 93
+ L+TG +GIG+ A+RL Q + + D+ G H
Sbjct: 5 VALVTGASSGIGKATARRLAAQGYTVYGAARRVDKMEDLASLG---------------VH 49
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
LDV++ + D + E G + +LVNNAG + + D R+ F+VN+
Sbjct: 50 PLSLDVTDEASIKAAVDTIIAEEGRIDVLVNNAGYGSYGAIEDVPIDEARRQFEVNL 106
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 49.0 bits (117), Expect = 1e-07
Identities = 27/114 (23%), Positives = 44/114 (38%), Gaps = 5/114 (4%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNET-KQMPEEQGTRTFHTYKLDVS 100
L+TG GIG+ LA+R + DID + + + F D++
Sbjct: 4 TALVTGAAGGIGQALARRFLAAGDRVLALDIDAAALAAFADALGDAR----FVPVACDLT 59
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ + E G V +LV NAG L++ P R +N+ A +
Sbjct: 60 DAASLAAALANAAAERGPVDVLVANAGAARAASLHDTTPASWRADNALNLEAAY 113
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 48.5 bits (116), Expect = 1e-07
Identities = 31/117 (26%), Positives = 59/117 (50%), Gaps = 12/117 (10%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTR-TFHTYKL-DVS 100
+++TG G+G +A +L ++ + + I N E ++ E+ + TFH+ L DV
Sbjct: 4 VIITGTSQGLGEAIANQLLEKGTHVIS--ISRTENKELTKLAEQYNSNLTFHSLDLQDVH 61
Query: 101 NRE----EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 152
E E+L + V + L+NNAG++ P KP+ + + + + +N+LA
Sbjct: 62 ELETNFNEILSSIQE--DNVSSIH-LINNAGMVAPIKPIEKAESEELITNVHLNLLA 115
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 48.5 bits (116), Expect = 2e-07
Identities = 25/96 (26%), Positives = 42/96 (43%), Gaps = 7/96 (7%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWM---CWDIDEKGNNETKQMPEEQGTRTF 92
K G++ ++TG +G G A+ +L M D+ + + QG
Sbjct: 2 KDFAGKVAVITGAASGFGLAFARIG---AALGMKLVLADVQQDALDRAVAELRAQGAEV- 57
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
+ DVS+ +V +AD + G V +L NNAG+
Sbjct: 58 LGVRTDVSDAAQVEALADAALERFGAVHLLFNNAGV 93
>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 = 48.3 bits (115), Expect = 2e-07
Identities = 28/119 (23%), Positives = 49/119 (41%), Gaps = 3/119 (2%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
EG+++++TG GIGR +A+RL + + + D E +E G H +
Sbjct: 2 FEGKVVVVTGAAQGIGRGVAERLAGEGARVLLVDRSELV-HEVLAEILAAGDAA-HVHTA 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNA-GIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
D+ V + G V +L+NN G + KP + + I ++ W
Sbjct: 60 DLETYAGAQGVVRAAVERFGRVDVLINNVGGTIWAKPYEHYEEEQIEAEIRRSLFPTLW 118
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 47.7 bits (113), Expect = 3e-07
Identities = 35/127 (27%), Positives = 69/127 (54%), Gaps = 8/127 (6%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSL-WMCWDIDEKGNNETKQMPEEQGTRTFHT 94
K+L+G++ L+TG GIGR +A RL +L + + +++ +ET + E G + F
Sbjct: 2 KNLDGKVALVTGASRGIGRAIAMRLANDGALVAIHYGRNKQAADETIREIESNGGKAF-L 60
Query: 95 YKLDVSNREEVLRVADKVRKEV------GEVTILVNNAGIMPCKPLNEQKPDVIRKTFDV 148
+ D+++ + V ++ ++++ E+ E+ ILVNNAGI + ++ + V
Sbjct: 61 IEADLNSIDGVKKLVEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIMAV 120
Query: 149 NVLAHFW 155
N+ A F+
Sbjct: 121 NIKAPFF 127
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 47.5 bits (113), Expect = 4e-07
Identities = 31/116 (26%), Positives = 54/116 (46%), Gaps = 5/116 (4%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN--NETKQMPEEQGTRTFHTYKLDV 99
++++TG GIG A L ++ +C + + Q QG DV
Sbjct: 4 VMIITGASRGIGAATA-LLAAERGYAVCLNYLRNRDAAEAVVQAIRRQGGEAL-AVAADV 61
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKP-LNEQKPDVIRKTFDVNVLAHF 154
++ +VLR+ + V +E+G + LVNNAGI+ + L + + + F NV+ F
Sbjct: 62 ADEADVLRLFEAVDRELGRLDALVNNAGILEAQMRLEQMDAARLTRIFATNVVGSF 117
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 47.0 bits (112), Expect = 7e-07
Identities = 29/99 (29%), Positives = 50/99 (50%), Gaps = 2/99 (2%)
Query: 32 PPSEKSLEGEIILLTGL-GNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK-QMPEEQGT 89
P L G+++L+T G GIG A+R ++ + + DI E+ ET ++ E G
Sbjct: 9 VPGHGLLAGKVVLVTAAAGTGIGSATARRALEEGARVVISDIHERRLGETADELAAELGL 68
Query: 90 RTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
DV++ +V + D + +G + +LVNNAG+
Sbjct: 69 GRVEAVVCDVTSEAQVDALIDAAVERLGRLDVLVNNAGL 107
>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 = 46.5 bits (111), Expect = 7e-07
Identities = 31/118 (26%), Positives = 54/118 (45%), Gaps = 10/118 (8%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDI--DEKGNNETKQMPEEQGTRTFHTYKLDVS 100
+L+TG GIG EL ++L + + + D E + +LDV+
Sbjct: 1 VLITGASRGIGLELVRQLLARGNNTV-IATCRDPSAATELAALGASHSRLHIL--ELDVT 57
Query: 101 NREEVLRVADKVRKEVGEVTI--LVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHFW 155
+ E+ A+ V + +G+ + L+NNAGI+ P +E + + + F VNVL
Sbjct: 58 D--EIAESAEAVAERLGDAGLDVLINNAGILHSYGPASEVDSEDLLEVFQVNVLGPLL 113
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 46.8 bits (111), Expect = 8e-07
Identities = 27/93 (29%), Positives = 48/93 (51%), Gaps = 3/93 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
SLEG++ ++TG G+G+ +A L + + +I E ET + G R F +
Sbjct: 7 SLEGKVAVVTGCDTGLGQGMALGLAEAGCDIVGINIVEP--TETIEQVTALG-RRFLSLT 63
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM 129
D+ + + + ++ E G + ILVNNAG++
Sbjct: 64 ADLRKIDGIPALLERAVAEFGHIDILVNNAGLI 96
>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 = 46.7 bits (111), Expect = 9e-07
Identities = 24/92 (26%), Positives = 44/92 (47%), Gaps = 3/92 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHTY 95
SL+ ++ ++TG +G +A+ L Q + + EKG+ K++ G
Sbjct: 2 SLKNKVAVITGGTGVLGGAMARALAQAGAKVAALGRNQEKGDKVAKEITALGGRAIA--L 59
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
DV +R + R +++ + G V IL+N AG
Sbjct: 60 AADVLDRASLERAREEIVAQFGTVDILINGAG 91
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 46.4 bits (111), Expect = 1e-06
Identities = 31/131 (23%), Positives = 55/131 (41%), Gaps = 18/131 (13%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-DEKGNNETKQMPEEQGTRTFHTY 95
SL+G++ ++TG G +G +AK L + + D EK ++ G
Sbjct: 7 SLKGKVAVITGGGGVLGGAMAKELARAGAKVAILDRNQEKAEAVVAEIKAAGGEALA--V 64
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAG---------------IMPCKPLNEQKPD 140
K DV ++E + + ++ ++ G IL+N AG I P K + +
Sbjct: 65 KADVLDKESLEQARQQILEDFGPCDILINGAGGNHPKATTDNEFHELIEPTKTFFDLDEE 124
Query: 141 VIRKTFDVNVL 151
FD+N+L
Sbjct: 125 GFEFVFDLNLL 135
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 46.2 bits (110), Expect = 1e-06
Identities = 43/128 (33%), Positives = 68/128 (53%), Gaps = 14/128 (10%)
Query: 34 SEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-----DEKGN-NETKQMPEEQ 87
S K L+G++ L+TG +GIGR +A LF ++ DI DE + NETKQ E++
Sbjct: 41 SGK-LKGKVALITGGDSGIGRAVAV-LFAKEGA----DIAIVYLDEHEDANETKQRVEKE 94
Query: 88 GTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTF 146
G + DVS+ ++ +E+G + ILVNNA P + L + + + KTF
Sbjct: 95 GVKCL-LIPGDVSDEAFCKDAVEETVRELGRLDILVNNAAFQYPQQSLEDITAEQLDKTF 153
Query: 147 DVNVLAHF 154
N+ ++F
Sbjct: 154 KTNIYSYF 161
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 46.2 bits (110), Expect = 1e-06
Identities = 17/60 (28%), Positives = 24/60 (40%)
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
LDV++R V + + G + I+VNNAG + E R D N W
Sbjct: 55 ALDVTDRAAVFAAVETAVEHFGRLDIVVNNAGYGLFGMIEEVTESEARAQIDTNFFGALW 114
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 46.1 bits (109), Expect = 1e-06
Identities = 31/93 (33%), Positives = 46/93 (49%), Gaps = 8/93 (8%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK--QMPEEQGTRTFHTY 95
L G L+TG GIG E+A+ L Q ++ + G K + E G R +
Sbjct: 4 LSGRKALVTGASGGIGEEIARLLHAQGAI-----VGLHGTRVEKLEALAAELGERV-KIF 57
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
++S+R+EV + K ++ V ILVNNAGI
Sbjct: 58 PANLSDRDEVKALGQKAEADLEGVDILVNNAGI 90
>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 = 45.9 bits (109), Expect = 2e-06
Identities = 32/122 (26%), Positives = 48/122 (39%), Gaps = 8/122 (6%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQ-QKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
+LEG+ L+TG GIG + + L ++ C + E + E + F
Sbjct: 3 NLEGKTALVTGGTKGIGYAIVEELAGLGAEVYTC----ARNQKELDECLTEWREKGFKVE 58
Query: 96 KL--DVSNREEVLRVADKVRKEVGE-VTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
DVS+R E + D V G + ILVNNAG K + + N A
Sbjct: 59 GSVCDVSSRSERQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEA 118
Query: 153 HF 154
+
Sbjct: 119 AY 120
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 45.7 bits (108), Expect = 2e-06
Identities = 31/113 (27%), Positives = 54/113 (47%), Gaps = 1/113 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G ++TG +GIG ++ + + D+D+ G + +G H
Sbjct: 4 FPGRGAVITGGASGIGLATGTEFARRGARVVLGDVDKPGLRQAVNHLRAEGFDV-HGVMC 62
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV +REEV +AD+ + +G V ++ +NAGI+ P+ E D R DV++
Sbjct: 63 DVRHREEVTHLADEAFRLLGHVDVVFSNAGIVVGGPIVEMTHDDWRWVIDVDL 115
>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 = 45.7 bits (108), Expect = 2e-06
Identities = 29/116 (25%), Positives = 57/116 (49%), Gaps = 3/116 (2%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
G L+TG +GIG+ A + ++ ++ M + K++ E G + + +D
Sbjct: 1 GRSFLITGANSGIGKAAALAIAKRGGTVHMVCRNQTRAEEARKEIETESGNQNIFLHIVD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+S+ ++V ++ ++E ++ +L+NNAG M K E D + K F N L +
Sbjct: 61 MSDPKQVWEFVEEFKEEGKKLHVLINNAGCMVNK--RELTEDGLEKNFATNTLGTY 114
>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 = 45.3 bits (108), Expect = 2e-06
Identities = 24/113 (21%), Positives = 43/113 (38%), Gaps = 2/113 (1%)
Query: 43 ILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
L+TG IGR +A+ L + + + ++ E K + D+S+
Sbjct: 3 ALVTGAAKRIGRAIAEALAAEGYRVVVHYNRSEAEAQRLKDELNALRNSAV-LVQADLSD 61
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ + G +LVNNA PL + D + F +N+ A +
Sbjct: 62 FAACADLVAAAFRAFGRCDVLVNNASAFYPTPLGQGSEDAWAELFGINLKAPY 114
>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 = 45.5 bits (108), Expect = 2e-06
Identities = 29/108 (26%), Positives = 45/108 (41%), Gaps = 25/108 (23%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ--------KSLWMCWDIDEKGNNETKQMP----- 84
L G++ +TG GIGR +A RL + K+ E N K +P
Sbjct: 1 LSGKVAFVTGASRGIGRAIALRLAKAGATVVVAAKTA------SEGDNGSAKSLPGTIEE 54
Query: 85 -----EEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
E G + +DV + ++V + + + G + ILVNNAG
Sbjct: 55 TAEEIEAAGGQAL-PIVVDVRDEDQVRALVEATVDQFGRLDILVNNAG 101
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 45.3 bits (107), Expect = 2e-06
Identities = 26/95 (27%), Positives = 48/95 (50%), Gaps = 9/95 (9%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI---DEKGNNETKQMPEEQGTRTFHT 94
L G++ ++TG G+G+ +A L + + DI ET+ E G R FH
Sbjct: 6 LNGKVAIITGCNTGLGQGMAIGLAKAGA-----DIVGVGVAEAPETQAQVEALG-RKFHF 59
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM 129
D+ ++++ + + + +G + IL+NNAGI+
Sbjct: 60 ITADLIQQKDIDSIVSQAVEVMGHIDILINNAGII 94
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 44.5 bits (106), Expect = 3e-06
Identities = 26/111 (23%), Positives = 47/111 (42%), Gaps = 10/111 (9%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
L+TG GIG +A+ L + G + + +D+++
Sbjct: 5 TALITGASRGIGAAIARELAPT------HTLLLGGRPAERLDELAAELPGATPFPVDLTD 58
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
E + + ++G + +LV+NAG+ P+ E D R T +VNV+A
Sbjct: 59 PEAIAAAVE----QLGRLDVLVHNAGVADLGPVAESTVDEWRATLEVNVVA 105
>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 = 44.7 bits (106), Expect = 4e-06
Identities = 28/122 (22%), Positives = 52/122 (42%), Gaps = 13/122 (10%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKG-------NNETKQMPEEQGTRTF 92
G++ L+TG +GIG +A+ L + +I G + + G +
Sbjct: 2 GKVALVTGSTSGIGLGIARALAAAGA-----NIVLNGFGDAAEIEAVRAGLAAKHGVKVL 56
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+ + D+S + + +++ G V ILVNNAGI P+ + + +N+ A
Sbjct: 57 Y-HGADLSKPAAIEDMVAYAQRQFGGVDILVNNAGIQHVAPIEDFPTEKWDAIIALNLSA 115
Query: 153 HF 154
F
Sbjct: 116 VF 117
>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 = 44.8 bits (106), Expect = 4e-06
Identities = 22/103 (21%), Positives = 49/103 (47%), Gaps = 4/103 (3%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
+++L+TG G+G +A+ ++ + + ++ + E+ + + + DV
Sbjct: 1 QVVLVTGASRGLGAAIARSFAREGARVV---VNYYRSTESAEAVAAEAGERAIAIQADVR 57
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVI 142
+R++V + ++ + G V +VNNA I P P + D I
Sbjct: 58 DRDQVQAMIEEAKNHFGPVDTIVNNALIDFPFDPDQRKTFDTI 100
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 44.9 bits (107), Expect = 4e-06
Identities = 29/127 (22%), Positives = 49/127 (38%), Gaps = 19/127 (14%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G++ L+TG G+GIGR L +R + + + + R +
Sbjct: 4 LHGQVALITGGGSGIGRALVERFLAEGARVAVLERSAEK---------LASLRQRFGDHV 54
Query: 98 -----DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFD---- 147
DV++ + R D+ G++ V NAGI L + + + FD
Sbjct: 55 LVVEGDVTSYADNQRAVDQTVDAFGKLDCFVGNAGIWDYNTSLVDIPAETLDTAFDEIFN 114
Query: 148 VNVLAHF 154
VNV +
Sbjct: 115 VNVKGYL 121
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 44.5 bits (106), Expect = 5e-06
Identities = 38/134 (28%), Positives = 58/134 (43%), Gaps = 19/134 (14%)
Query: 32 PPSEKSLEGEIILLTGLGNGIGRELAK---RLFQQKSLWMCWDIDEKGNNETK-----QM 83
P L+ IIL+TG G+GIGRE A R L G E K
Sbjct: 4 QPKPDLLKDRIILVTGAGDGIGREAALTYARHGATVILL--------GRTEEKLEAVYDE 55
Query: 84 PEEQGTRTFHTYKLDVSN--REEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPD 140
E G LD+ + ++AD + ++ G + +++NAG++ P+ +Q P+
Sbjct: 56 IEAAGGPQPAIIPLDLLTATPQNYQQLADTIEEQFGRLDGVLHNAGLLGELGPMEQQDPE 115
Query: 141 VIRKTFDVNVLAHF 154
V + VNV A F
Sbjct: 116 VWQDVMQVNVNATF 129
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 44.3 bits (105), Expect = 6e-06
Identities = 31/121 (25%), Positives = 54/121 (44%), Gaps = 12/121 (9%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI------DEKGNNETKQMPEEQGTRT 91
G++ L+TG GIG+ +A RL ++ DI K ET + E G +
Sbjct: 2 FSGKVALVTGSSRGIGKAIALRLAEEGY-----DIAVNYARSRKAAEETAEEIEALGRKA 56
Query: 92 FHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
K +V + E++ + ++ +E G + + VNNA +P E + T ++N
Sbjct: 57 -LAVKANVGDVEKIKEMFAQIDEEFGRLDVFVNNAASGVLRPAMELEESHWDWTMNINAK 115
Query: 152 A 152
A
Sbjct: 116 A 116
>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 = 43.9 bits (104), Expect = 7e-06
Identities = 29/117 (24%), Positives = 51/117 (43%), Gaps = 2/117 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGT--RTFHTY 95
L G++ ++TG +GIG A + + D + ET+Q + G +
Sbjct: 1 LSGKVAIITGSSSGIGAGTAILFARLGARLALTGRDAERLEETRQSCLQAGVSEKKILLV 60
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
D++ E R+ + G + ILVNNAGI+ +Q + K ++N+ A
Sbjct: 61 VADLTEEEGQDRIISTTLAKFGRLDILVNNAGILAKGGGEDQDIEEYDKVMNLNLRA 117
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 44.0 bits (104), Expect = 7e-06
Identities = 27/106 (25%), Positives = 52/106 (49%), Gaps = 18/106 (16%)
Query: 36 KSLEGEIILLTGLG--NGIGRELAKRLFQQK-----SLW------MCWDIDEKGNNETKQ 82
L+ ++ ++TG+ +GIG + K L + + W M W +D+ +E Q
Sbjct: 2 NQLKNKVAVVTGVSRLDGIGAAICKELAEAGADIFFTYWTAYDKEMPWGVDQ---DEQIQ 58
Query: 83 MPEE--QGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNA 126
+ EE + + +LD++ + + +KV +++G ILVNNA
Sbjct: 59 LQEELLKNGVKVSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNA 104
>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 = 43.7 bits (103), Expect = 8e-06
Identities = 23/116 (19%), Positives = 49/116 (42%), Gaps = 1/116 (0%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
+++++TG GIGR + + + + + E + G + DV
Sbjct: 9 DKVVIVTGGSRGIGRGIVRAFVENGAKVVFCARGEAAGQALESELNRAGPGSCKFVPCDV 68
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHF 154
+ E++ + + G + LVNNAG P + +E R ++N++++F
Sbjct: 69 TKEEDIKTLISVTVERFGRIDCLVNNAGWHPPHQTTDETSAQEFRDLLNLNLISYF 124
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 43.9 bits (104), Expect = 8e-06
Identities = 21/91 (23%), Positives = 48/91 (52%), Gaps = 9/91 (9%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFH----TY 95
+++++TG +G+G+ +AKR ++ ++ G + K + F T
Sbjct: 1 EKVVIITGGSSGMGKAMAKRFAEEG-----ANVVITGRTKEKLEEAKLEIEQFPGQVLTV 55
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNA 126
++DV N E+V ++ +++ ++ G + L+NNA
Sbjct: 56 QMDVRNPEDVQKMVEQIDEKFGRIDALINNA 86
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 43.5 bits (103), Expect = 9e-06
Identities = 30/114 (26%), Positives = 50/114 (43%), Gaps = 4/114 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNET-KQMPEEQGTRTFHTY 95
SL+G++ L+TG GIG +A+ L + D+K E ++ +
Sbjct: 3 SLKGKVALITGGSKGIGFAIAEALLAEGYKVAITARDQKELEEAAAELNNKGNVLGL--- 59
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVN 149
DV + +V R D + G + +L+ NAG+ P+ E P+ R D N
Sbjct: 60 AADVRDEADVQRAVDAIVAAFGGLDVLIANAGVGHFAPVEELTPEEWRLVIDTN 113
>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 = 43.7 bits (104), Expect = 9e-06
Identities = 24/90 (26%), Positives = 40/90 (44%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G++ +TG G GIG+ +AK + + + + H +
Sbjct: 1 LKGKVAFITGGGTGIGKAIAKAFAELGASVAIAGRKPEVLEAAAEEISSATGGRAHPIQC 60
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAG 127
DV + E V D+ KE G++ IL+NNA
Sbjct: 61 DVRDPEAVEAAVDETLKEFGKIDILINNAA 90
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 43.2 bits (102), Expect = 1e-05
Identities = 30/119 (25%), Positives = 51/119 (42%), Gaps = 4/119 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L+ ++ ++TG G G+G +A + + + E +E + G R H
Sbjct: 7 RLDDQVAVVTGAGRGLGAAIALAFAEAGADVLIAARTESQLDEVAEQIRAAGRRA-HVVA 65
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNN-AGIMPCKPLNEQKPDVIRKTFDVNVL-AH 153
D+++ E +A + + G + I+VNN G MP PL + F NV AH
Sbjct: 66 ADLAHPEATAGLAGQAVEAFGRLDIVVNNVGGTMP-NPLLSTSTKDLADAFTFNVATAH 123
>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 = 43.4 bits (102), Expect = 1e-05
Identities = 24/113 (21%), Positives = 52/113 (46%), Gaps = 1/113 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+ + ++TG G GIG +R ++ + +D++ + + +G +
Sbjct: 1 LKDKTAIVTGGGGGIGGATCRRFAEEGAKVAVFDLNREAAEKVAADIRAKGG-NAQAFAC 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
D+++R+ V + +G V +LVNNAG P + +P + + +N+
Sbjct: 60 DITDRDSVDTAVAAAEQALGPVDVLVNNAGWDKFGPFTKTEPPLWERLIAINL 112
>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 = 43.2 bits (102), Expect = 1e-05
Identities = 32/112 (28%), Positives = 49/112 (43%), Gaps = 5/112 (4%)
Query: 42 IILLTGLGNGIGRELAKRLF--QQKSLWMCWDIDEKGNNET-KQMPEEQGTRTFHTYKLD 98
++L+TG +GIG LA RL K + + + + T T +LD
Sbjct: 2 VVLITGCSSGIGLHLAVRLASDPSKRFKVYATMRDLKKKGRLWEAAGALAGGTLETLQLD 61
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
V + + V ++V + V +LV NAG+ PL D + FDVNV
Sbjct: 62 VCDSKSVAAAVERVTE--RHVDVLVCNAGVGLLGPLEALSEDAMASVFDVNV 111
>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 = 43.1 bits (102), Expect = 1e-05
Identities = 27/114 (23%), Positives = 51/114 (44%), Gaps = 9/114 (7%)
Query: 43 ILLTGLGNGIGRELAKRLFQQ-KSLWMCW---DIDEKGNNETKQMPEEQGTRTFHTYKLD 98
+L+TG +GIGR LA+ + ++ + D ++ E + LD
Sbjct: 1 VLITGASSGIGRALAREFAKAGYNVALAARRTDRLDELKAELLNPN---PSVEVEI--LD 55
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
V++ E V ++ E+G + +++ NAG+ L + R+T D N+L
Sbjct: 56 VTDEERNQLVIAELEAELGGLDLVIINAGVGKGTSLGDLSFKAFRETIDTNLLG 109
>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 = 43.0 bits (102), Expect = 1e-05
Identities = 34/123 (27%), Positives = 54/123 (43%), Gaps = 31/123 (25%)
Query: 46 TGLGNGIGR----ELAKRLF-------QQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
TG +GIG+ ELAKR F Q+ L + + EE+ T
Sbjct: 7 TGATDGIGKAYAEELAKRGFNVILISRTQEKL-----------DAVAKEIEEKYGVETKT 55
Query: 95 YKLDVSNREEVLRVADKVRKEVG--EVTILVNNAGI---MPCKPLNEQKPDVIRKTFDVN 149
D S +++ +++ KE+ ++ ILVNN GI +P L D ++ +VN
Sbjct: 56 IAADFSAGDDIY---ERIEKELEGLDIGILVNNVGISHSIPEYFLETP-EDELQDIINVN 111
Query: 150 VLA 152
V+A
Sbjct: 112 VMA 114
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 42.8 bits (101), Expect = 2e-05
Identities = 37/130 (28%), Positives = 56/130 (43%), Gaps = 14/130 (10%)
Query: 36 KSLEGEIILLTGL--GNGIGRELAKRL-----------FQQKSLWMCWDIDEKGNNETKQ 82
L +I L+TG NGIG + +RL + M W + +K K+
Sbjct: 1 LPLMKKIALVTGASRLNGIGAAVCRRLAAKGIDIFFTYWSPYDKTMPWGMHDKEPVLLKE 60
Query: 83 MPEEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVI 142
E G R H ++D+S RV V + +G+ +IL+NNA L E + +
Sbjct: 61 EIESYGVRCEHM-EIDLSQPYAPNRVFYAVSERLGDPSILINNAAYSTHTRLEELTAEQL 119
Query: 143 RKTFDVNVLA 152
K + VNV A
Sbjct: 120 DKHYAVNVRA 129
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 42.6 bits (101), Expect = 2e-05
Identities = 28/113 (24%), Positives = 44/113 (38%), Gaps = 15/113 (13%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNN---ETKQMPEEQGTRTFHTYKLD 98
+ L+TG +GIGR A++L + G ++ +LD
Sbjct: 6 VALVTGASSGIGRATAEKLARA------------GYRVFGTSRNPARAAPIPGVELLELD 53
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
V++ V D+V G + +LVNNAG+ E + FD NV
Sbjct: 54 VTDDASVQAAVDEVIARAGRIDVLVNNAGVGLAGAAEESSIAQAQALFDTNVF 106
>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 = 42.4 bits (100), Expect = 3e-05
Identities = 27/115 (23%), Positives = 47/115 (40%), Gaps = 4/115 (3%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDI-DEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
++TG GIGR +A L + D+ D+ E G R ++ D+
Sbjct: 5 IVTGASRGIGRAIATELAARGFDIAINDLPDDDQATEVVAEVLAAGRRA-IYFQADIGEL 63
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCK--PLNEQKPDVIRKTFDVNVLAHFW 155
+ + D+ ++ G + LVNNAGI L + D + +N+ F+
Sbjct: 64 SDHEALLDQAWEDFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIAINLRGPFF 118
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 42.1 bits (99), Expect = 3e-05
Identities = 31/115 (26%), Positives = 53/115 (46%), Gaps = 13/115 (11%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQ-MPEEQGTRTFHTYKL 97
G+ +L+ G GIG + +R ++ + G+ + + + +E G +
Sbjct: 6 GKKVLVLGGSRGIGAAIVRRFVTDGANVRFTY----AGSKDAAERLAQETGATAV---QT 58
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
D ++R+ V+ D VRK G + ILV NAGI E D I + F +N+ A
Sbjct: 59 DSADRDAVI---DVVRKS-GALDILVVNAGIAVFGDALELDADDIDRLFKINIHA 109
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 42.0 bits (99), Expect = 3e-05
Identities = 32/124 (25%), Positives = 45/124 (36%), Gaps = 9/124 (7%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN------NETKQMPEEQGTR 90
SL+ +L+TG G+GR +A RL + +D + E G
Sbjct: 3 SLDSRRVLITGGSGGLGRAIAVRLAADGA--DVIVLDIHPMRGRAEADAVAAGIEAAGG- 59
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
DV + D +E G + ILVNNAGI E + DVN+
Sbjct: 60 KALGLAFDVRDFAATRAALDAGVEEFGRLDILVNNAGIATDAAFAELSIEEWDDVIDVNL 119
Query: 151 LAHF 154
F
Sbjct: 120 DGFF 123
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 42.2 bits (100), Expect = 3e-05
Identities = 30/113 (26%), Positives = 54/113 (47%), Gaps = 6/113 (5%)
Query: 37 SLEGEIILLTGLGN--GIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFH 93
LEG+ IL+ G+ N I +AK L +Q + L + E+ +++ EE G+
Sbjct: 3 LLEGKRILIMGVANNRSIAWGIAKALAEQGAELAFTY-QGERLEKRVEELAEELGS--DL 59
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 146
DV+N E + + ++K+ G++ LV++ P + L D R+ F
Sbjct: 60 VLPCDVTNDESIDALFATIKKKWGKLDGLVHSIAFAPKEELKGDYLDTSREGF 112
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 41.9 bits (99), Expect = 4e-05
Identities = 26/114 (22%), Positives = 45/114 (39%), Gaps = 14/114 (12%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDI------DEKGNNETKQMPEEQGTRTFHTYKL 97
L+TG GIG +A+ L +D+ D++ T+Q G +
Sbjct: 6 LVTGGRRGIGLGIARALAAAG-----FDLAINDRPDDEELAATQQELRALGVEVIF-FPA 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK--PLNEQKPDVIRKTFDVN 149
DV++ + D + G + LVNNAG+ L + P+ + +N
Sbjct: 60 DVADLSAHEAMLDAAQAAWGRIDCLVNNAGVGVKVRGDLLDLTPESFDRVLAIN 113
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 41.6 bits (98), Expect = 4e-05
Identities = 28/119 (23%), Positives = 44/119 (36%), Gaps = 18/119 (15%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
G+ +L+TG +GIGR A L Q+ + + + ++ E G +LDV
Sbjct: 9 GKSVLVTGASSGIGRACAVALAQRGARVVAAARNA---AALDRLAGETGC---EPLRLDV 62
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFD----VNVLAHF 154
+ + G LVN AGI + D+ + FD VN
Sbjct: 63 GDDAAIRAALA----AAGAFDGLVNCAGIASLESA----LDMTAEGFDRVMAVNARGAA 113
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 41.6 bits (98), Expect = 5e-05
Identities = 26/111 (23%), Positives = 46/111 (41%), Gaps = 13/111 (11%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+L+TG GIG L+ RL + + P E + D+++
Sbjct: 5 TVLVTGATKGIGLALSLRLANLG-----HQVIGIARSAIDDFPGE-------LFACDLAD 52
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
E+ ++ E+ V +VNN GI +PL + ++ +D+NV A
Sbjct: 53 IEQTAATLAQIN-EIHPVDAIVNNVGIALPQPLGKIDLAALQDVYDLNVRA 102
>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 = 41.4 bits (97), Expect = 5e-05
Identities = 24/113 (21%), Positives = 49/113 (43%), Gaps = 4/113 (3%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
G++ ++TG G+GIG+++ + + DIDE+ + + DV
Sbjct: 1 GKVAIVTGGGHGIGKQICLDFLEAGDKVVFADIDEERGADFAEAEGPNLF----FVHGDV 56
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
++ V V + +++G + +LVNNA L+ + + VN+
Sbjct: 57 ADETLVKFVVYAMLEKLGRIDVLVNNAARGSKGILSSLLLEEWDRILSVNLTG 109
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 41.5 bits (97), Expect = 5e-05
Identities = 32/120 (26%), Positives = 56/120 (46%), Gaps = 4/120 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
L G++ ++TG GIG+ + L Q+ K + E N ++ +E +
Sbjct: 3 QLNGKVAIVTGGAKGIGKAITVALAQEGAKVVINYNSSKEAAENLVNELGKEGHD--VYA 60
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ DVS E+ R+ ++ G+V ILVNNAGI + + + + DVN+ + F
Sbjct: 61 VQADVSKVEDANRLVEEAVNHFGKVDILVNNAGITRDRTFKKLNREDWERVIDVNLSSVF 120
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 40.9 bits (96), Expect = 7e-05
Identities = 32/118 (27%), Positives = 53/118 (44%), Gaps = 1/118 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
LEG++ L+TG +G+G A+ L Q + + + E + E +G H L
Sbjct: 7 LEGKVALVTGASSGLGARFAQVLAQAGAKVVLASRRVERLKELRAEIEAEGGAA-HVVSL 65
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
DV++ + + E G + ILVNN+G+ + L + P FD N F+
Sbjct: 66 DVTDYQSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPADFDFVFDTNTRGAFF 123
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 40.8 bits (96), Expect = 8e-05
Identities = 26/91 (28%), Positives = 44/91 (48%), Gaps = 1/91 (1%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
LEG + ++TG +GIG + L + S+ +C +E+ + ++ E+ +
Sbjct: 6 LEGRVAVVTGGSSGIGLATVELLLEAGASVAICGRDEERLASAEARLREKFPGARLLAAR 65
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
DV + +V A V G V +LVNNAG
Sbjct: 66 CDVLDEADVAAFAAAVEARFGGVDMLVNNAG 96
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 40.8 bits (96), Expect = 1e-04
Identities = 33/127 (25%), Positives = 52/127 (40%), Gaps = 18/127 (14%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQ--------KSLWMCWDIDEKGNNETKQMPEEQG 88
L G+I L+TG GIG +AK L QQ + L C + + + G
Sbjct: 5 DLTGKIALVTGASRGIGEAIAKLLAQQGAHVIVSSRKLDGCQAVADA-------IVAAGG 57
Query: 89 TRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFD 147
+ E++ + +R+ G + ILVNNA P + + +KT D
Sbjct: 58 KAE--ALACHIGEMEQIDALFAHIRERHGRLDILVNNAAANPYFGHILDTDLGAFQKTVD 115
Query: 148 VNVLAHF 154
VN+ +F
Sbjct: 116 VNIRGYF 122
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 40.6 bits (96), Expect = 1e-04
Identities = 32/118 (27%), Positives = 54/118 (45%), Gaps = 4/118 (3%)
Query: 35 EKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
++ L G++ L+TG GIG +A+ L + + +C D+ G GT
Sbjct: 205 DRPLAGKVALVTGAARGIGAAIAEVLARDGAHVVCLDVPAAGEALAAVANRVGGT----A 260
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
LD++ + R+A+ + + G + I+V+NAGI K L VN+LA
Sbjct: 261 LALDITAPDAPARIAEHLAERHGGLDIVVHNAGITRDKTLANMDEARWDSVLAVNLLA 318
>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 = 40.3 bits (95), Expect = 1e-04
Identities = 30/109 (27%), Positives = 48/109 (44%), Gaps = 3/109 (2%)
Query: 40 GEIILLTGLGN--GIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G+ IL+TG+ N I +AK L + + E +++ E G
Sbjct: 1 GKRILITGIANDRSIAWGIAKALHEAGAELAFTYQPEALRKRVEKLAERLGESAL-VLPC 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 146
DVSN EE+ + +V+K+ G++ LV++ P L D RK F
Sbjct: 60 DVSNDEEIKELFAEVKKDWGKLDGLVHSIAFAPKVQLKGPFLDTSRKGF 108
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 39.9 bits (94), Expect = 1e-04
Identities = 26/116 (22%), Positives = 48/116 (41%), Gaps = 11/116 (9%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK-----QMPEEQGTRTFHTYKLD 98
L+TG +GIG+ A + WD+ ++ G + Y +D
Sbjct: 10 LITGASSGIGKATALAFAKAG-----WDLALVARSQDALEALAAELRSTGVKAA-AYSID 63
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+SN E + ++ ++ G +L+NNAG+ PL E + +N+ + F
Sbjct: 64 LSNPEAIAPGIAELLEQFGCPDVLINNAGMAYTGPLLEMPLSDWQWVIQLNLTSVF 119
>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 = 40.4 bits (95), Expect = 2e-04
Identities = 28/132 (21%), Positives = 52/132 (39%), Gaps = 27/132 (20%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQ---------------KSLWMCWDIDEKGNNETKQM 83
G + L+TG GIGR LA+ L ++ + W +
Sbjct: 204 PGGVYLVTGGAGGIGRALARALARRYGARLVLLGRSPLPPEEEWKAQTLAAL-------- 255
Query: 84 PEEQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIR 143
E G R + DV++ V R+ +KVR+ G + +++ AG++ L ++ +
Sbjct: 256 -EALGARVLYI-SADVTDAAAVRRLLEKVRERYGAIDGVIHAAGVLRDALLAQKTAEDFE 313
Query: 144 KTFD--VNVLAH 153
V+ L +
Sbjct: 314 AVLAPKVDGLLN 325
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 40.1 bits (93), Expect = 2e-04
Identities = 36/124 (29%), Positives = 55/124 (44%), Gaps = 6/124 (4%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN-NETKQMPEEQGTRTFHT-Y 95
L+G++ L+TG GIGR +AKRL +L + K ET + G F
Sbjct: 2 LKGKVALVTGASRGIGRAIAKRLANDGALVAIHYGNRKEEAEETVYEIQSNGGSAFSIGA 61
Query: 96 KLDVSNREEVLRVA--DKVRKEVGEVT--ILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
L+ + E L + ++++ G IL+NNAGI P + E + VN
Sbjct: 62 NLESLHGVEALYSSLDNELQNRTGSTKFDILINNAGIGPGAFIEETTEQFFDRMVSVNAK 121
Query: 152 AHFW 155
A F+
Sbjct: 122 APFF 125
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 40.0 bits (94), Expect = 2e-04
Identities = 35/120 (29%), Positives = 59/120 (49%), Gaps = 6/120 (5%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ---KSLWMCWDIDEKGNNETKQMPEEQGTRTFHT 94
L+G++ L+TG G+G +A R F + L +C EKG + ++ E G +
Sbjct: 4 LDGKVALVTGGTQGLGAAIA-RAFAERGAAGLVICGRNAEKGEAQAAEL-EALGAKA-VF 60
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ D+S+ E+ RV + G + LVN AG+ + + P++ + F VNV A F
Sbjct: 61 VQADLSDVEDCRRVVAAADEAFGRLDALVNAAGLTDRGTILDTSPELFDRHFAVNVRAPF 120
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 39.6 bits (93), Expect = 2e-04
Identities = 18/91 (19%), Positives = 47/91 (51%), Gaps = 2/91 (2%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+ +++++TG +GIG ++ RL ++ ++ + + + +++ Q F +
Sbjct: 5 LKDKVVIVTGGASGIGAAISLRLAEEGAIPVIFGRSAPDDEFAEELRALQPRAEFVQ--V 62
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
D+++ + ++ + G + LVNNAG+
Sbjct: 63 DLTDDAQCRDAVEQTVAKFGRIDGLVNNAGV 93
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 39.0 bits (91), Expect = 4e-04
Identities = 24/89 (26%), Positives = 42/89 (47%), Gaps = 8/89 (8%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNET--KQMPEEQGTRTFHTYKLDV 99
I+L+TG G G + +R QQ + G + +++ +E G + +LDV
Sbjct: 2 IVLVTGATAGFGECITRRFIQQGH-----KVIATGRRQERLQELKDELGD-NLYIAQLDV 55
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGI 128
NR + + + E + +LVNNAG+
Sbjct: 56 RNRAAIEEMLASLPAEWRNIDVLVNNAGL 84
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 39.2 bits (92), Expect = 4e-04
Identities = 35/123 (28%), Positives = 56/123 (45%), Gaps = 19/123 (15%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETK------QMPEEQGT 89
L+ + +LLTG GIG+ LA+ L + L + G N K ++P
Sbjct: 3 LKDKRVLLTGASGGIGQALAEALAAAGARLLLV-------GRNAEKLEALAARLPYPGRH 55
Query: 90 RTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVN 149
R + RE VL A +E+G + +L+NNAG+ L +Q P+ I + +N
Sbjct: 56 RWVVADLTSEAGREAVLARA----REMGGINVLINNAGVNHFALLEDQDPEAIERLLALN 111
Query: 150 VLA 152
+ A
Sbjct: 112 LTA 114
>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 = 38.7 bits (90), Expect = 4e-04
Identities = 32/114 (28%), Positives = 45/114 (39%), Gaps = 14/114 (12%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK--QMPEEQGTRTFHTYKLDVSN 101
L+ G GIGR LA+ L W G + + E G DV+
Sbjct: 2 LILGATGGIGRALARAL--AGRGWRLLLS---GRDAGALAGLAAEVGALARPA---DVAA 53
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
EV +A +E+G + +LV AG + KPL KP R+ D N+
Sbjct: 54 ELEVWALA----QELGPLDLLVYAAGAILGKPLARTKPAAWRRILDANLTGAAL 103
>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 = 38.7 bits (90), Expect = 5e-04
Identities = 30/118 (25%), Positives = 56/118 (47%), Gaps = 5/118 (4%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKS--LWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G++I++TG +GIG E A+ + + C ++ + + ++ EE L
Sbjct: 1 GKVIIITGANSGIGFETARSFALHGAHVILACRNM-SRASAAVSRILEEWHKARVEAMTL 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 155
D+++ V R A+ + + + +LV NA + P + D + TF VN L HF+
Sbjct: 60 DLASLRSVQRFAEAFKAKNSPLHVLVCNAAVF-ALPWTLTE-DGLETTFQVNHLGHFY 115
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 38.4 bits (90), Expect = 5e-04
Identities = 28/122 (22%), Positives = 51/122 (41%), Gaps = 8/122 (6%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEE---QGTRTFH 93
L G++ ++TG +GIGR AK ++ + + + + E Q+ E +G
Sbjct: 3 RLNGKVAIITGASSGIGRAAAKLFAREGAKVV---VGARRQAELDQLVAEIRAEGGEA-V 58
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 152
DV + + + G + I NNAG + P+ E + R+T N+ +
Sbjct: 59 ALAGDVRDEAYAKALVALAVERFGGLDIAFNNAGTLGEMGPVAEMSLEGWRETLATNLTS 118
Query: 153 HF 154
F
Sbjct: 119 AF 120
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 38.4 bits (90), Expect = 6e-04
Identities = 29/112 (25%), Positives = 50/112 (44%), Gaps = 3/112 (2%)
Query: 43 ILLTGLGNGIGRELAKRLFQQK--SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
IL+TG +G+G +A R F K L +C ++ ++ LDV+
Sbjct: 5 ILITGASSGLGAGMA-REFAAKGRDLALCARRTDRLEELKAELLARYPGIKVAVAALDVN 63
Query: 101 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+ ++V V + R E+G + ++ NAGI L K + T + N +A
Sbjct: 64 DHDQVFEVFAEFRDELGGLDRVIVNAGIGKGARLGTGKFWANKATAETNFVA 115
>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 = 38.6 bits (90), Expect = 6e-04
Identities = 20/116 (17%), Positives = 48/116 (41%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
++ ++ G G +G L L + DI+ + + + + + D
Sbjct: 1 MNQVAVVIGGGQTLGEFLCHGLAEAGYDVAVADINSENAEKVADEINAEYGEKAYGFGAD 60
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+N + V+ ++ V + V +LV +AGI + + + ++ VN++ +F
Sbjct: 61 ATNEQSVIALSKGVDEIFKRVDLLVYSAGIAKSAKITDFELGDFDRSLQVNLVGYF 116
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 38.1 bits (88), Expect = 7e-04
Identities = 28/117 (23%), Positives = 49/117 (41%), Gaps = 1/117 (0%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L G+ L+TG GIG+ +A + + + G +
Sbjct: 7 LHGKRALITGASTGIGKRVALAYVEAGAQVAIAARHLDALEKLADEIGTSGGKVV-PVCC 65
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
DVS ++V + D+V E+G + I V NAGI+ P+ + + ++ + NV F
Sbjct: 66 DVSQHQQVTSMLDQVTAELGGIDIAVCNAGIITVTPMLDMPLEEFQRLQNTNVTGVF 122
>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 = 37.5 bits (88), Expect = 8e-04
Identities = 24/111 (21%), Positives = 50/111 (45%), Gaps = 13/111 (11%)
Query: 44 LLTG-LGNGIGRELAKRLFQQ--KSLWMC-----WDIDEKGNNETKQMPEEQGTRTFHTY 95
L+TG LG G+G ELA+ L ++ + L + D + + ++ E +G
Sbjct: 4 LVTGGLG-GLGLELARWLAERGARHLVLLSRSGAPDPEAEA--LLAEL-EARGAEV-TVV 58
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 146
DVS+R+ V + ++R + + +++ AG++ L + +
Sbjct: 59 ACDVSDRDAVRALLAEIRADGPPLRGVIHAAGVLRDALLANMTAEDFARVL 109
>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 = 37.9 bits (88), Expect = 9e-04
Identities = 26/88 (29%), Positives = 43/88 (48%), Gaps = 3/88 (3%)
Query: 41 EIILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
E+ L+TG +GIG +A+RL ++ +++C E+G T + E G DV
Sbjct: 4 EVALVTGATSGIGLAIARRLGKEGLRVFVCAR-GEEGLATTVKELREAGVEADGR-TCDV 61
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAG 127
+ E+ + G + +LVNNAG
Sbjct: 62 RSVPEIEALVAAAVARYGPIDVLVNNAG 89
>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 = 37.9 bits (88), Expect = 9e-04
Identities = 27/117 (23%), Positives = 49/117 (41%), Gaps = 9/117 (7%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLW----MCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
+++TG +G+G AK L ++ W C D K +++ + + + D
Sbjct: 4 VVITGASSGLGLAAAKALARRGE-WHVVMACRDF-LKAEQAAQEVGMPKDSYS--VLHCD 59
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHF 154
+++ + V + D R+ + LV NA + +P D T VN L HF
Sbjct: 60 LASLDSVRQFVDNFRRTGRPLDALVCNAAVYLPTAKEPRFTADGFELTVGVNHLGHF 116
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 37.9 bits (88), Expect = 0.001
Identities = 28/111 (25%), Positives = 51/111 (45%), Gaps = 12/111 (10%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
+L+TG +GIG++LA +Q W + G N++ + T DV++
Sbjct: 4 VLITGATSGIGKQLALDYAKQG-----WQVIACGRNQSVLDELHTQSANIFTLAFDVTDH 58
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDV--IRKTFDVNVL 151
++ + E+ I NAG C+ +++ K D + + F+VNVL
Sbjct: 59 PGTKAALSQL-PFIPELWIF--NAG--DCEYMDDGKVDATLMARVFNVNVL 104
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 38.0 bits (89), Expect = 0.001
Identities = 27/112 (24%), Positives = 39/112 (34%), Gaps = 34/112 (30%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNN------ETKQMPEEQGT 89
SL G+ + +TG GIG +A R + G N + P+ GT
Sbjct: 2 MSLSGKTLFITGASRGIGLAIALRAARD------------GANIVIAAKTAEPHPKLPGT 49
Query: 90 RTFHT--------------YKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
HT DV + ++V K + G + I VNNA
Sbjct: 50 --IHTAAEEIEAAGGQALPLVGDVRDEDQVAAAVAKAVERFGGIDICVNNAS 99
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 37.7 bits (88), Expect = 0.001
Identities = 30/118 (25%), Positives = 48/118 (40%), Gaps = 7/118 (5%)
Query: 40 GEIILLTGLGNGIGRELAKRLF--QQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
G + ++TG G+G E A L + ++D KG ++ +L
Sbjct: 16 GRVAVVTGANTGLGYETAAALAAKGAHVVLAVRNLD-KGKAAAARITAATPGADVTLQEL 74
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ V AD +R + +L+NNAG+M K D F N L HF
Sbjct: 75 DLTSLASVRAAADALRAAYPRIDLLINNAGVMYTPKQTTA---DGFELQFGTNHLGHF 129
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 37.3 bits (86), Expect = 0.001
Identities = 30/93 (32%), Positives = 46/93 (49%), Gaps = 12/93 (12%)
Query: 42 IILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMP--EEQGTRTFHTY-- 95
I +TG GIG + +RL + K + C G N +++ E+Q F
Sbjct: 5 IAYVTGGMGGIGTSICQRLHKDGFKVVAGC------GPNSPRRVKWLEDQKALGFDFIAS 58
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
+ +V + + DKV+ EVGE+ +LVNNAGI
Sbjct: 59 EGNVGDWDSTKAAFDKVKAEVGEIDVLVNNAGI 91
>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 = 37.1 bits (86), Expect = 0.002
Identities = 30/119 (25%), Positives = 50/119 (42%), Gaps = 4/119 (3%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
S+ G+I+L+TG GIGR +A+ + + + + K E
Sbjct: 3 SVAGKIVLVTGGSRGIGRMIAQGFLEAGARVIIS---ARKAEACADAAEELSAYGECIAI 59
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+S+ E + + +V + + +LVNNAG PL K D+NV + F
Sbjct: 60 PADLSSEEGIEALVARVAERSDRLDVLVNNAGATWGAPLEAFPESGWDKVMDINVKSVF 118
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 37.0 bits (86), Expect = 0.002
Identities = 30/102 (29%), Positives = 46/102 (45%), Gaps = 2/102 (1%)
Query: 27 LLTLIPPSEK-SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPE 85
LL PP + L G+ ILLTG +GIG A++ ++ + + E +
Sbjct: 26 LLINRPPRQPVDLTGKRILLTGASSGIGEAAAEQFARRGATVVAVARREDLLDAVADRIT 85
Query: 86 EQGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
G D+S+ + V + V K +G V IL+NNAG
Sbjct: 86 RAGGDA-MAVPCDLSDLDAVDALVADVEKRIGGVDILINNAG 126
>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 = 36.9 bits (86), Expect = 0.002
Identities = 27/127 (21%), Positives = 50/127 (39%), Gaps = 19/127 (14%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+GE+ L+TG G+G+GR L +R + + D + R +
Sbjct: 2 LKGEVALITGGGSGLGRALVERFVAEGAKVAVLDRSAEK---------VAELRADFGDAV 52
Query: 98 -----DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFD---- 147
DV + + R + + G++ + NAGI L + + + + FD
Sbjct: 53 VGVEGDVRSLADNERAVARCVERFGKLDCFIGNAGIWDYSTSLVDIPEEKLDEAFDELFH 112
Query: 148 VNVLAHF 154
+NV +
Sbjct: 113 INVKGYI 119
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 36.6 bits (85), Expect = 0.002
Identities = 28/100 (28%), Positives = 43/100 (43%), Gaps = 20/100 (20%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRL----------FQQKSLWMCWDIDEKGNNETKQMPEE 86
L G+ L+TG GIG + AK L ++QK+ + N ++ E
Sbjct: 3 DLPGKTALVTGSSRGIGADTAKILAGAGAHVVVNYRQKA--------PRANKVVAEI-EA 53
Query: 87 QGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNA 126
G R D+++ E V + D R+E G + LV NA
Sbjct: 54 AGGRAS-AVGADLTDEESVAALMDTAREEFGGLDALVLNA 92
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 36.3 bits (84), Expect = 0.003
Identities = 30/130 (23%), Positives = 54/130 (41%), Gaps = 19/130 (14%)
Query: 34 SEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNET--KQMPEEQGTRT 91
+ L G++ ++TG G+GR A L + + + D+ + ++
Sbjct: 6 NTTDLSGKVAVVTGAAAGLGRAEALGLARLGATVVVNDVASALDASDVLDEIRAAGAKAV 65
Query: 92 FHTYKLDVSNRE---EVLRVADKVRKEVGEVTILVNNAGIMPCKPL----NEQKPDVIRK 144
D+S R E++ A +G + I+VNNAGI + L +E+ VI
Sbjct: 66 AVAG--DISQRATADELVATAV----GLGGLDIVVNNAGITRDRMLFNMSDEEWDAVIA- 118
Query: 145 TFDVNVLAHF 154
V++ HF
Sbjct: 119 ---VHLRGHF 125
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 36.2 bits (84), Expect = 0.003
Identities = 19/61 (31%), Positives = 30/61 (49%), Gaps = 1/61 (1%)
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
+LDV++ + + V KE+G + +LVNNAG + E + RK F+ NV
Sbjct: 57 KVQQLDVTD-QNSIHNFQLVLKEIGRIDLLVNNAGYANGGFVEEIPVEEYRKQFETNVFG 115
Query: 153 H 153
Sbjct: 116 A 116
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 36.2 bits (84), Expect = 0.003
Identities = 20/91 (21%), Positives = 47/91 (51%), Gaps = 6/91 (6%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNE-TKQMPEEQGTRTFHTYK 96
+ + +L+TG G+G +A+ ++ + + ++ + + + + +E G R +
Sbjct: 3 ISEQTVLVTGGSRGLGAAIARAFAREGARVV---VNYHQSEDAAEALADELGDRAI-ALQ 58
Query: 97 LDVSNREEVLRVADKVRKEVGE-VTILVNNA 126
DV++RE+V + + G+ +T +VNNA
Sbjct: 59 ADVTDREQVQAMFATATEHFGKPITTVVNNA 89
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 36.1 bits (84), Expect = 0.004
Identities = 24/115 (20%), Positives = 42/115 (36%), Gaps = 9/115 (7%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN--NETKQMPEEQGTRTFHTYKLDV 99
+ +TG +GIG+ LA+ +Q + + + Y DV
Sbjct: 4 KVFITGASSGIGQALAREYARQG--ATLGLVARRTDALQAFAA--RLPKAARVSVYAADV 59
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPD--VIRKTFDVNVLA 152
+ + + A G +++ NAGI L E++ D V R+ D N
Sbjct: 60 RDADALAAAAADFIAAHGLPDVVIANAGI-SVGTLTEEREDLAVFREVMDTNYFG 113
>gnl|CDD|181416 PRK08415, PRK08415, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 274
Score = 35.9 bits (83), Expect = 0.004
Identities = 13/54 (24%), Positives = 31/54 (57%)
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDV 148
Y+LDVS E +A+ ++K++G++ +V++ P + L + ++ F++
Sbjct: 60 YELDVSKPEHFKSLAESLKKDLGKIDFIVHSVAFAPKEALEGSFLETSKEAFNI 113
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 35.5 bits (82), Expect = 0.005
Identities = 28/116 (24%), Positives = 52/116 (44%), Gaps = 2/116 (1%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQ-KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
S + L+TG G+GIG+ +A L ++ + +K +++ +G
Sbjct: 4 SFQDRTYLVTGGGSGIGKGVAAGLVAAGAAVMIVGRNPDKLAAAAEEIEALKGAGAVRYE 63
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNA-GIMPCKPLNEQKPDVIRKTFDVNV 150
DV++ ++V R D G + +V+ A G P+ + D R+T D+NV
Sbjct: 64 PADVTDEDQVARAVDAATAWHGRLHGVVHCAGGSETIGPITQIDSDAWRRTVDLNV 119
>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 = 35.5 bits (82), Expect = 0.006
Identities = 33/129 (25%), Positives = 59/129 (45%), Gaps = 16/129 (12%)
Query: 38 LEGEIILLTG----LGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFH 93
L G+I L+TG +G GI +L + ++++ T + E +G +
Sbjct: 1 LSGKIALVTGASRGIGRGIALQLGEA---GATVYITGRTILPQLPGTAEEIEARGGKC-I 56
Query: 94 TYKLDVSNREEVLRVADKVRKEV-GEVTILVNNA-------GIMPCKPLNEQKPDVIRKT 145
+ D S+ +EV + ++V +E G + ILVNNA + KP E+ P +
Sbjct: 57 PVRCDHSDDDEVEALFERVAREQQGRLDILVNNAYAAVQLILVGVAKPFWEEPPTIWDDI 116
Query: 146 FDVNVLAHF 154
+V + AH+
Sbjct: 117 NNVGLRAHY 125
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 35.4 bits (82), Expect = 0.006
Identities = 19/58 (32%), Positives = 27/58 (46%), Gaps = 2/58 (3%)
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
LD+++ E V A++ + IL+NNAG+M C P F N L HF
Sbjct: 78 LDLADLESVRAFAERFLDSGRRIDILINNAGVMAC-PETRVGDG-WEAQFATNHLGHF 133
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 35.3 bits (82), Expect = 0.006
Identities = 24/95 (25%), Positives = 36/95 (37%), Gaps = 10/95 (10%)
Query: 33 PSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTF 92
L G+ L+TG GIG RL + + + + +PE F
Sbjct: 2 SFFLELAGKRALVTGGTKGIGAATVARLLEAGA-----RVVTTARSRPDDLPEGV---EF 53
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
D++ E VA V + +G V ILV+ G
Sbjct: 54 --VAADLTTAEGCAAVARAVLERLGGVDILVHVLG 86
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 35.5 bits (82), Expect = 0.006
Identities = 28/122 (22%), Positives = 53/122 (43%), Gaps = 5/122 (4%)
Query: 37 SLEGEIILLTG----LGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTF 92
SL+G+++L+ G LG I R+LA + + ++ + ET + G +
Sbjct: 5 SLKGKVVLIAGGAKNLGGLIARDLAAQGAKAVAIHYNSAASKADAEETVAAVKAAGAKAV 64
Query: 93 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
++ D++ V ++ D + G I +N G + KP+ E + F VN +
Sbjct: 65 -AFQADLTTAAAVEKLFDDAKAAFGRPDIAINTVGKVLKKPIVEISEAEYDEMFAVNSKS 123
Query: 153 HF 154
F
Sbjct: 124 AF 125
>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 = 35.2 bits (81), Expect = 0.008
Identities = 29/118 (24%), Positives = 49/118 (41%), Gaps = 9/118 (7%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+GE++L+TG +G+GR + R + + D G E + + +
Sbjct: 3 LKGEVVLVTGGASGLGRAIVDRFVAEGARVAVLDKSAAGLQELEAAHGDAVVGVEGDVRS 62
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFD----VNV 150
++E V R G++ L+ NAGI L + D I + FD +NV
Sbjct: 63 LDDHKEAVARCVAA----FGKIDCLIPNAGIWDYSTALVDIPDDRIDEAFDEVFHINV 116
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 35.0 bits (81), Expect = 0.008
Identities = 25/92 (27%), Positives = 38/92 (41%), Gaps = 6/92 (6%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHT 94
L G++ ++TG IG +A+ L + DID + G + E R T
Sbjct: 2 IGLAGKVAIVTGGATLIGAAVARALVAAGARVAIVDIDADNGAAVAASLGE--RARFIAT 59
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNA 126
D+++ + R V G V ILVN A
Sbjct: 60 ---DITDDAAIERAVATVVARFGRVDILVNLA 88
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 35.2 bits (81), Expect = 0.008
Identities = 35/126 (27%), Positives = 57/126 (45%), Gaps = 14/126 (11%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-------DEKGNNETKQMPEEQGTR 90
L+G L+TG +GIGR A ++ + DI +E+ E Q+ + +G R
Sbjct: 53 LQGRKALITGADSGIGRATAIAFAREGA-----DIALNYLPEEEQDAAEVVQLIQAEG-R 106
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVN 149
D+ + ++ ++ KE+G + ILVN AG K + + + TF N
Sbjct: 107 KAVALPGDLKDEAFCRQLVERAVKELGGLDILVNIAGKQTAVKDIADITTEQFDATFKTN 166
Query: 150 VLAHFW 155
V A FW
Sbjct: 167 VYAMFW 172
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 35.0 bits (81), Expect = 0.009
Identities = 32/119 (26%), Positives = 53/119 (44%), Gaps = 4/119 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKS-LWMCWDIDEKGNNETKQMPEEQGTRTFHTYK 96
L G+ ++TG +G+G LA+RL + + + KG +
Sbjct: 12 LSGKRAVVTGASDGLGLGLARRLAAAGAEVILPVRNRAKGEAAVAAIRTAVPDAKLSLRA 71
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 154
LD+S+ V + +++R E + +L+NNAG+M P P + D F N L HF
Sbjct: 72 LDLSSLASVAALGEQLRAEGRPIHLLINNAGVMTP--PERQTTADGFELQFGTNHLGHF 128
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 34.6 bits (79), Expect = 0.012
Identities = 32/126 (25%), Positives = 57/126 (45%), Gaps = 14/126 (11%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI-------DEKGNNETKQMPEEQGTR 90
L+ L+TG +GIGR A ++ + D+ +E+ + K++ EE G R
Sbjct: 47 LKDRKALVTGGDSGIGRAAAIAYAREGA-----DVAISYLPVEEEDAQDVKKIIEECG-R 100
Query: 91 TFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKP-LNEQKPDVIRKTFDVN 149
D+S+ + + + K +G + I+ AG P + + + +KTF +N
Sbjct: 101 KAVLLPGDLSDEKFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADLTSEQFQKTFAIN 160
Query: 150 VLAHFW 155
V A FW
Sbjct: 161 VFALFW 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 = 34.6 bits (80), Expect = 0.013
Identities = 29/102 (28%), Positives = 50/102 (49%), Gaps = 13/102 (12%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDI--DEKGNNETKQMP----EE---Q 87
+G ++L+TG G G+GR A ++ + + D+ D KG+ ++ +E
Sbjct: 2 RFDGRVVLVTGAGGGLGRAYALAFAERGAKVVVNDLGGDRKGSGKSSSAADKVVDEIKAA 61
Query: 88 GTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM 129
G + Y V + E++++ A G V ILVNNAGI+
Sbjct: 62 GGKAVANYD-SVEDGEKIVKTA---IDAFGRVDILVNNAGIL 99
>gnl|CDD|180669 PRK06720, PRK06720, hypothetical protein; Provisional.
Length = 169
Score = 34.2 bits (78), Expect = 0.013
Identities = 27/92 (29%), Positives = 44/92 (47%), Gaps = 3/92 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHTYK 96
L G++ ++TG G GIGR A L +Q + + DID E G +++ G F +Y
Sbjct: 14 LAGKVAIVTGGGIGIGRNTALLLAKQGAKVIVTDIDQESGQATVEEITNLGGEALFVSY- 72
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
D+ + + RV + +L NAG+
Sbjct: 73 -DMEKQGDWQRVISITLNAFSRIDMLFQNAGL 103
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 34.1 bits (79), Expect = 0.014
Identities = 14/59 (23%), Positives = 32/59 (54%), Gaps = 4/59 (6%)
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP----CKPLNEQKPDVIRKTFDVNVL 151
LDV++ E++ + +KV+++ G++ LV++ + P KP + + K D++
Sbjct: 51 LDVTSDEDIDELFEKVKEDGGKIDFLVHSIAMSPEIRKGKPYLDTSREGFLKALDISAY 109
>gnl|CDD|187548 cd05237, UDP_invert_4-6DH_SDR_e, UDP-Glcnac (UDP-linked
N-acetylglucosamine) inverting 4,6-dehydratase, extended
(e) SDRs. UDP-Glcnac inverting 4,6-dehydratase was
identified in Helicobacter pylori as the hexameric flaA1
gene product (FlaA1). FlaA1 is hexameric, possesses
UDP-GlcNAc-inverting 4,6-dehydratase activity, and
catalyzes the first step in the creation of a
pseudaminic acid derivative in protein glycosylation.
Although this subgroup has the NADP-binding motif
characteristic of extended SDRs, its members tend to
have a Met substituted for the active site Tyr found in
most SDR families. 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 = 287
Score = 34.5 bits (80), Expect = 0.014
Identities = 17/72 (23%), Positives = 33/72 (45%), Gaps = 2/72 (2%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQ-QKSLWMCWDIDEKGNNE-TKQMPEEQGTRTFHTYK 96
+G+ IL+TG IG EL +++ + + +D DE +E +++
Sbjct: 1 KGKTILVTGGAGSIGSELVRQILKFGPKKLIVFDRDENKLHELVRELRSRFPHDKLRFII 60
Query: 97 LDVSNREEVLRV 108
DV ++E + R
Sbjct: 61 GDVRDKERLRRA 72
>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 = 33.9 bits (78), Expect = 0.022
Identities = 24/109 (22%), Positives = 41/109 (37%), Gaps = 22/109 (20%)
Query: 42 IILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKG-----NNETKQMPEE---------- 86
++L+TG +G+G + +RL + D + Q E
Sbjct: 3 VVLVTGANSGLGLAICERLLAE-------DDENPELTLILACRNLQRAEAACRALLASHP 55
Query: 87 QGTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN 135
F +D+SN V A +++K + L NAGIMP ++
Sbjct: 56 DARVVFDYVLVDLSNMVSVFAAAKELKKRYPRLDYLYLNAGIMPNPGID 104
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 33.6 bits (77), Expect = 0.027
Identities = 23/93 (24%), Positives = 39/93 (41%), Gaps = 22/93 (23%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNN--ETKQMP-------EEQGTRTFHT 94
+TG +G GR + +RL +G+ T + P G R
Sbjct: 6 FITGASSGFGRGMTERLL------------ARGDRVAATVRRPDALDDLKARYGDR-LWV 52
Query: 95 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
+LDV++ V V D+ +G + ++V+NAG
Sbjct: 53 LQLDVTDSAAVRAVVDRAFAALGRIDVVVSNAG 85
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 33.5 bits (77), Expect = 0.028
Identities = 18/57 (31%), Positives = 31/57 (54%), Gaps = 4/57 (7%)
Query: 94 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ LD+S+ E ++A E G++ ILVNNAG +P L++ R +++ V
Sbjct: 61 VHALDLSSPEAREQLA----AEAGDIDILVNNAGAIPGGGLDDVDDAAWRAGWELKV 113
>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 = 32.8 bits (76), Expect = 0.032
Identities = 25/107 (23%), Positives = 44/107 (41%), Gaps = 5/107 (4%)
Query: 44 LLTGLGNGIGRELAKRLFQQ--KSLWMC--WDIDEKGNNETKQMPEEQGTRTFHTYKLDV 99
L+TG G+GR LA+ L ++ + L + D G E G R DV
Sbjct: 4 LITGGLGGLGRALARWLAERGARRLVLLSRSGPDAPGAAALLAELEAAGARV-TVVACDV 62
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 146
++R+ + V + G +T +++ AG++ L P+
Sbjct: 63 ADRDALAAVLAAIPAVEGPLTGVIHAAGVLDDGVLASLTPERFAAVL 109
>gnl|CDD|235608 PRK05786, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 238
Score = 33.2 bits (76), Expect = 0.034
Identities = 19/90 (21%), Positives = 37/90 (41%), Gaps = 2/90 (2%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G+ + + G+ G+G +A ++ + +E K+ + G +
Sbjct: 3 LKGKKVAIIGVSEGLGYAVAYFALKEGAQVCINSRNENKLKRMKKTLSKYGNIHYVVG-- 60
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAG 127
DVS+ E V +K K + + LV G
Sbjct: 61 DVSSTESARNVIEKAAKVLNAIDGLVVTVG 90
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 32.8 bits (75), Expect = 0.054
Identities = 20/93 (21%), Positives = 42/93 (45%), Gaps = 1/93 (1%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
L G ++++TG +GIG+ A+ ++ + + DE+ + G
Sbjct: 3 GPLHGAVVVITGASSGIGQATAEAFARRGARLVLAARDEEALQAVAEECRALGAEVL-VV 61
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
DV++ ++V +A + G + + VNN G+
Sbjct: 62 PTDVTDADQVKALATQAASFGGRIDVWVNNVGV 94
>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 = 32.6 bits (75), Expect = 0.055
Identities = 19/112 (16%), Positives = 41/112 (36%), Gaps = 22/112 (19%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
I++ G IG +A+ L ++ G R+ Y++D+++
Sbjct: 1 IIVIGATGTIGLAVAQLLSAHGH-----EVITAG-------------RSSGDYQVDITDE 42
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 154
+ + ++VG +V+ AG PL E ++ + +L
Sbjct: 43 ASI----KALFEKVGHFDAIVSTAGDAEFAPLAELTDADFQRGLNSKLLGQI 90
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 32.3 bits (74), Expect = 0.066
Identities = 32/131 (24%), Positives = 55/131 (41%), Gaps = 20/131 (15%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQK-------SLWMCWDIDEKGNNETKQMPEE---Q 87
L+G ++++TG G GIGR A F + + + D G + + + +E
Sbjct: 4 LDGRVVIVTGAGGGIGRAHA-LAFAAEGARVVVNDIGVGLDGSASGGSAAQAVVDEIVAA 62
Query: 88 GTRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGI----MPCKPLNEQKPDVIR 143
G D+++ + + D + G + +LVNNAGI M E+ VI
Sbjct: 63 GGEAV-ANGDDIADWDGAANLVDAAVETFGGLDVLVNNAGILRDRMIANMSEEEWDAVIA 121
Query: 144 KTFDVNVLAHF 154
V++ HF
Sbjct: 122 ----VHLKGHF 128
>gnl|CDD|240625 cd05300, 2-Hacid_dh_1, Putative D-isomer specific 2-hydroxyacid
dehydrogenase. 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 subdomains 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. 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 the
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.
Length = 313
Score = 31.3 bits (72), Expect = 0.16
Identities = 12/25 (48%), Positives = 18/25 (72%), Gaps = 1/25 (4%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRL 60
+ L G+ +L+ GLG IGRE+A+R
Sbjct: 130 RELAGKTVLIVGLG-DIGREIARRA 153
>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
Length = 259
Score = 30.5 bits (69), Expect = 0.26
Identities = 22/91 (24%), Positives = 48/91 (52%), Gaps = 2/91 (2%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
+L+T GIG +A+ L ++ + + +E+ N K + E + + K D+S++
Sbjct: 3 VLVTASSRGIGFNVARELLKKGARVVISSRNEE--NLEKALKELKEYGEVYAVKADLSDK 60
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIMPCKP 133
+++ + + + +G + LV NAG + C+P
Sbjct: 61 DDLKNLVKEAWELLGGIDALVWNAGNVRCEP 91
>gnl|CDD|236389 PRK09134, PRK09134, short chain dehydrogenase; Provisional.
Length = 258
Score = 30.3 bits (69), Expect = 0.29
Identities = 23/93 (24%), Positives = 37/93 (39%), Gaps = 16/93 (17%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDI--------DEKGNNETKQMPEEQGTRTFHTY 95
L+TG IGR +A L +D+ DE G R
Sbjct: 13 LVTGAARRIGRAIALDLAAHG-----FDVAVHYNRSRDEA--EALAAEIRALGRRA-VAL 64
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGI 128
+ D+++ EV + + +G +T+LVNNA +
Sbjct: 65 QADLADEAEVRALVARASAALGPITLLVNNASL 97
>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 = 30.2 bits (68), Expect = 0.38
Identities = 30/120 (25%), Positives = 50/120 (41%), Gaps = 2/120 (1%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTY 95
L ++ L+T +GIG +A+RL Q + + ++ + + +G T
Sbjct: 6 DPLANKVALVTASTDGIGLAIARRLAQDGAHVVVSSRKQQNVDRAVATLQGEGLSVTGTV 65
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFDVNVLAHF 154
V E+ R+ G V ILV+NA + P + + +V K DVNV A
Sbjct: 66 -CHVGKAEDRERLVATAVNLHGGVDILVSNAAVNPFFGNILDSTEEVWDKILDVNVKATA 124
>gnl|CDD|236000 PRK07360, PRK07360, FO synthase subunit 2; Reviewed.
Length = 371
Score = 30.2 bits (69), Expect = 0.38
Identities = 17/59 (28%), Positives = 26/59 (44%), Gaps = 4/59 (6%)
Query: 71 DIDEKGNNETKQMPEEQGTRTFHTYKLDVSNREEVLRVADKVRKE-VGEVTILVNNAGI 128
DI E+ + +E T + E+L +AD++RKE VG+ V N I
Sbjct: 9 DILERARKGKD-LSKEDALELLETT--EPRRIFEILELADRLRKEQVGDTVTYVVNRNI 64
>gnl|CDD|215501 PLN02928, PLN02928, oxidoreductase family protein.
Length = 347
Score = 30.0 bits (68), Expect = 0.50
Identities = 13/28 (46%), Positives = 17/28 (60%), Gaps = 1/28 (3%)
Query: 33 PSEKSLEGEIILLTGLGNGIGRELAKRL 60
P +L G+ + + G G IG ELAKRL
Sbjct: 152 PIGDTLFGKTVFILGYGA-IGIELAKRL 178
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 29.5 bits (67), Expect = 0.51
Identities = 24/113 (21%), Positives = 46/113 (40%), Gaps = 4/113 (3%)
Query: 38 LEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKL 97
L+G+ L+TG +GIG E A++ + + D + E G +
Sbjct: 4 LQGKTALITGGTSGIGLETARQFLAEGARVAITGRDPASLEAAR---AELGESAL-VIRA 59
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
D + +A + + G + + NAG+ PL + + ++F+ NV
Sbjct: 60 DAGDVAAQKALAQALAEAFGRLDAVFINAGVAKFAPLEDWDEAMFDRSFNTNV 112
>gnl|CDD|237604 PRK14085, PRK14085, imidazolonepropionase; Provisional.
Length = 382
Score = 29.6 bits (67), Expect = 0.57
Identities = 14/39 (35%), Positives = 17/39 (43%), Gaps = 6/39 (15%)
Query: 87 QGTRTFHT---YKLDVSNREEVLRVADKVRKEVGEVTIL 122
QGT T T Y L V + R+A + EVT L
Sbjct: 125 QGTTTVETKTGYGLTVEDEARSARIAAEF---TDEVTFL 160
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 29.5 bits (67), Expect = 0.58
Identities = 18/99 (18%), Positives = 30/99 (30%), Gaps = 22/99 (22%)
Query: 39 EGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGN----------NETKQMPEEQG 88
G+++++TG GIGR +A R E +E G
Sbjct: 7 AGKVVVVTGAAQGIGRGVALRAAA-----------EGARVVLVDRSELVHEVAAELRAAG 55
Query: 89 TRTFHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 127
D+ + G + +L+NN G
Sbjct: 56 GEA-LALTADLETYAGAQAAMAAAVEAFGRIDVLINNVG 93
>gnl|CDD|169556 PRK08703, PRK08703, short chain dehydrogenase; Provisional.
Length = 239
Score = 29.5 bits (66), Expect = 0.59
Identities = 9/25 (36%), Positives = 15/25 (60%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRL 60
+L + IL+TG G+G ++AK
Sbjct: 2 ATLSDKTILVTGASQGLGEQVAKAY 26
>gnl|CDD|131058 TIGR02003, PTS-II-BC-unk1, PTS system, IIBC component. This model
represents a family of fused B and C components of PTS
enzyme II. This clade is a member of a larger family
which contains enzyme II's specific for a variety of
sugars including glucose (TIGR02002) and
N-acetylglucosamine (TIGR01998). None of the members of
this clade have been experimentally characterized. This
clade includes sequences from Streptococcus and
Enterococcus which also include a C-terminal A domain as
well as Bacillus and Clostridium which do not. In nearly
all cases, these species also contain an authentic
glucose-specific PTS transporter [Transport and binding
proteins, Carbohydrates, organic alcohols, and acids].
Length = 548
Score = 29.9 bits (67), Expect = 0.60
Identities = 22/78 (28%), Positives = 33/78 (42%), Gaps = 16/78 (20%)
Query: 14 LIIKLLYSALESILLTL-------IPPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSL 66
++ LY LE +LL IP + +L G +LTG G +++ Q L
Sbjct: 220 ILAPFLYGTLERLLLPFGLHHMLTIPMNYTALGGTYEMLTGAAAG------QKVAGQDPL 273
Query: 67 WMCWDID---EKGNNETK 81
W+ W D K N + K
Sbjct: 274 WLAWITDLNHLKANGDAK 291
>gnl|CDD|236124 PRK07889, PRK07889, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 256
Score = 29.5 bits (67), Expect = 0.62
Identities = 13/34 (38%), Positives = 22/34 (64%)
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP 130
LDV+N E + +AD+VR+ V + +V++ G P
Sbjct: 64 LDVTNEEHLASLADRVREHVDGLDGVVHSIGFAP 97
>gnl|CDD|177654 PLN00015, PLN00015, protochlorophyllide reductase.
Length = 308
Score = 29.7 bits (67), Expect = 0.64
Identities = 30/118 (25%), Positives = 48/118 (40%), Gaps = 13/118 (11%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWM----CWDIDEKGNNETKQ--MPEEQGTRTFHTYKL 97
++TG +G+G AK L + W C D K K MP++ T L
Sbjct: 1 IITGASSGLGLATAKAL-AETGKWHVVMACRDF-LKAERAAKSAGMPKDSYT----VMHL 54
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHF 154
D+++ + V + D R+ + +LV NA + +P D + N L HF
Sbjct: 55 DLASLDSVRQFVDNFRRSGRPLDVLVCNAAVYLPTAKEPTFTADGFELSVGTNHLGHF 112
>gnl|CDD|217556 pfam03435, Saccharop_dh, Saccharopine dehydrogenase. This family
comprised of three structural domains that can not be
separated in the linear sequence. In some organisms this
enzyme is found as a bifunctional polypeptide with
lysine ketoglutarate reductase. The saccharopine
dehydrogenase can also function as a saccharopine
reductase.
Length = 380
Score = 29.2 bits (66), Expect = 0.98
Identities = 15/83 (18%), Positives = 31/83 (37%), Gaps = 12/83 (14%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSL-WMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+L+ G G G+G+ +A L + L D + + + + F +D N
Sbjct: 1 VLIIGAG-GVGQGVAPLLARHGDLEITVADRSLEK---AQALAAPKLGLRFIAIAVDADN 56
Query: 102 REEVLRVADKVRKEVGEVTILVN 124
E + + E +++N
Sbjct: 57 YEA-------LVALLKEGDLVIN 72
>gnl|CDD|227596 COG5271, MDN1, AAA ATPase containing von Willebrand factor type A
(vWA) domain [General function prediction only].
Length = 4600
Score = 29.2 bits (65), Expect = 1.1
Identities = 17/50 (34%), Positives = 23/50 (46%), Gaps = 5/50 (10%)
Query: 32 PPSEKSLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETK 81
P EKS GE+ TGLG+G+G E + D++E N E
Sbjct: 3802 LPQEKSNSGELESGTGLGSGVGAEDITNTLNEDD-----DLEELANEEDT 3846
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 28.4 bits (64), Expect = 1.2
Identities = 11/21 (52%), Positives = 12/21 (57%)
Query: 43 ILLTGLGNGIGRELAKRLFQQ 63
IL+TG G IG LA L Q
Sbjct: 5 ILITGAGQRIGLALAWHLLAQ 25
>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 = 28.3 bits (63), Expect = 1.4
Identities = 22/87 (25%), Positives = 35/87 (40%), Gaps = 2/87 (2%)
Query: 43 ILLTGLGNGIGRELAKRLFQQK-SLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSN 101
+L+TG GIGR +A RL + + + + QG + DV++
Sbjct: 1 VLVTGASRGIGRAIANRLAADGFEICVHYHSGRSDAESVVSAIQAQGG-NARLLQFDVAD 59
Query: 102 REEVLRVADKVRKEVGEVTILVNNAGI 128
R + + E G +V NAGI
Sbjct: 60 RVACRTLLEADIAEHGAYYGVVLNAGI 86
>gnl|CDD|236308 PRK08594, PRK08594, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 257
Score = 28.5 bits (64), Expect = 1.4
Identities = 22/93 (23%), Positives = 41/93 (44%), Gaps = 18/93 (19%)
Query: 37 SLEGEIILLTGLGN------GIGREL----AKRLFQQKSLWMCWDIDEKGNNETKQMPEE 86
SLEG+ ++ G+ N GI R L AK +F E+ E +++ +
Sbjct: 4 SLEGKTYVVMGVANKRSIAWGIARSLHNAGAKLVFTYA--------GERLEKEVRELADT 55
Query: 87 QGTRTFHTYKLDVSNREEVLRVADKVRKEVGEV 119
+ DV++ EE+ + +++EVG +
Sbjct: 56 LEGQESLLLPCDVTSDEEITACFETIKEEVGVI 88
>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 = 28.0 bits (62), Expect = 1.9
Identities = 22/95 (23%), Positives = 42/95 (44%), Gaps = 9/95 (9%)
Query: 42 IILLTGLGNGIGR----ELAKRLFQQKSLWMCWDIDEKGNNETK-QMPEEQGTRTFHTYK 96
+ L+TG G GR ELAK L S+ + +++ + K ++ E+
Sbjct: 2 VCLVTGASRGFGRTIAQELAKCLKSPGSVLVLSARNDEALRQLKAEIGAERSGLRVVRVS 61
Query: 97 LDVSNREEVLR----VADKVRKEVGEVTILVNNAG 127
LD+ + + + + R + + +L+NNAG
Sbjct: 62 LDLGAEAGLEQLLKALRELPRPKGLQRLLLINNAG 96
>gnl|CDD|240642 cd12165, 2-Hacid_dh_6, 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 = 314
Score = 28.0 bits (63), Expect = 1.9
Identities = 11/25 (44%), Positives = 16/25 (64%), Gaps = 1/25 (4%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRL 60
K L G+ + + G G IGRE+A+ L
Sbjct: 133 KELRGKTVGILGYG-HIGREIARLL 156
>gnl|CDD|185626 PTZ00447, PTZ00447, apical membrane antigen 1-like protein;
Provisional.
Length = 508
Score = 28.0 bits (62), Expect = 2.0
Identities = 20/70 (28%), Positives = 35/70 (50%), Gaps = 7/70 (10%)
Query: 74 EKGNNETKQMPEEQGTRTFHTYKLDVSNRE--EVLRV---ADKVRKEV--GEVTILVNNA 126
+K + T ++P + R ++D+ R+ E LRV K+ K+V G++ I +N +
Sbjct: 83 DKYDFTTDEIPTNKKNRIHIDQRVDIKIRQCDETLRVDLFTTKLTKKVHIGQIKIDINAS 142
Query: 127 GIMPCKPLNE 136
I P NE
Sbjct: 143 VISKSFPKNE 152
>gnl|CDD|223980 COG1052, LdhA, Lactate dehydrogenase and related dehydrogenases
[Energy production and conversion / Coenzyme metabolism
/ General function prediction only].
Length = 324
Score = 27.6 bits (62), Expect = 2.8
Identities = 11/29 (37%), Positives = 17/29 (58%), Gaps = 1/29 (3%)
Query: 32 PPSEKSLEGEIILLTGLGNGIGRELAKRL 60
P L G+ + + GLG IG+ +A+RL
Sbjct: 138 PLLGFDLRGKTLGIIGLGR-IGQAVARRL 165
>gnl|CDD|236229 PRK08303, PRK08303, short chain dehydrogenase; Provisional.
Length = 305
Score = 27.7 bits (62), Expect = 2.9
Identities = 9/28 (32%), Positives = 17/28 (60%)
Query: 98 DVSNREEVLRVADKVRKEVGEVTILVNN 125
D E+V + +++ +E G + ILVN+
Sbjct: 75 DHLVPEQVRALVERIDREQGRLDILVND 102
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 27.4 bits (61), Expect = 3.0
Identities = 31/111 (27%), Positives = 48/111 (43%), Gaps = 12/111 (10%)
Query: 43 ILLTGLGNGIGRELAKRLFQQ--KSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVS 100
+L+TG +GIG E A L ++ + L C + ++ +M G F LD+
Sbjct: 5 VLITGCSSGIGLEAALELKRRGYRVLAAC-----RKPDDVARM-NSLG---FTGILLDLD 55
Query: 101 NREEVLRVADKV-RKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+ E V R AD+V + L NNAG PL+ + + F N
Sbjct: 56 DPESVERAADEVIALTDNRLYGLFNNAGFGVYGPLSTISRQQMEQQFSTNF 106
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 27.0 bits (60), Expect = 3.8
Identities = 12/55 (21%), Positives = 27/55 (49%)
Query: 97 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 151
LDV++ + V + + +GE+ +LV+ AG L+E + ++++
Sbjct: 66 LDVTDPDSVKSFVAQAEEALGEIEVLVSGAGDTYFGKLHEISTEQFESQVQIHLV 120
>gnl|CDD|183962 PRK13305, sgbH, 3-keto-L-gulonate-6-phosphate decarboxylase;
Provisional.
Length = 218
Score = 27.1 bits (60), Expect = 4.0
Identities = 17/47 (36%), Positives = 22/47 (46%), Gaps = 3/47 (6%)
Query: 97 LDVSNREEVLRVADKVRKEVGEV---TILVNNAGIMPCKPLNEQKPD 140
LD ++ E R ++ V V TIL N G+ K L EQ PD
Sbjct: 10 LDHTSLEAAQRDVTLLKDHVDIVEAGTILCLNEGLGAVKALREQCPD 56
>gnl|CDD|224011 COG1086, COG1086, Predicted nucleoside-diphosphate sugar epimerases
[Cell envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 588
Score = 27.2 bits (61), Expect = 4.1
Identities = 21/74 (28%), Positives = 35/74 (47%), Gaps = 4/74 (5%)
Query: 38 LEGEIILLTGLGNGIGRELAKRL--FQQKSLWMCWDIDEKGNNE-TKQMPEEQGTRTFHT 94
L G+ +L+TG G IG EL +++ F K + + + DE ++ E+
Sbjct: 248 LTGKTVLVTGGGGSIGSELCRQILKFNPKEIIL-FSRDEYKLYLIDMELREKFPELKLRF 306
Query: 95 YKLDVSNREEVLRV 108
Y DV +R+ V R
Sbjct: 307 YIGDVRDRDRVERA 320
>gnl|CDD|214921 smart00934, OMPdecase, Orotidine 5'-phosphate decarboxylase / HUMPS
family. Orotidine 5'-phosphate decarboxylase
(OMPdecase) catalyzes the last step in the de novo
biosynthesis of pyrimidines, the decarboxylation of OMP
into UMP. In higher eukaryotes OMPdecase is part, with
orotate phosphoribosyltransferase, of a bifunctional
enzyme, while the prokaryotic and fungal OMPdecases are
monofunctional protein.
Length = 212
Score = 26.7 bits (60), Expect = 4.2
Identities = 16/59 (27%), Positives = 25/59 (42%), Gaps = 11/59 (18%)
Query: 97 LDVSNREEVLRVADKVRKEVG--EV-TILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 152
LDV + EE L +AD + V +V T L G + + E +++ F V
Sbjct: 6 LDVPDLEEALELADALGDSVDIIKVGTELFLAEGP---EGVKE-----LKELFGFPVFL 56
>gnl|CDD|240645 cd12168, Mand_dh_like, D-Mandelate Dehydrogenase-like
dehydrogenases. D-Mandelate dehydrogenase (D-ManDH),
identified as an enzyme that interconverts
benzoylformate and D-mandelate, is a D-2-hydroxyacid
dehydrogenase family member that catalyzes the
conversion of c3-branched 2-ketoacids. D-ManDH exhibits
broad substrate specificities for 2-ketoacids with large
hydrophobic side chains, particularly those with
C3-branched side chains. 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. Glycerate dehydrogenase catalyzes the
reaction (R)-glycerate + NAD+ to hydroxypyruvate + NADH
+ H+. 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.
Length = 321
Score = 27.1 bits (61), Expect = 4.4
Identities = 17/82 (20%), Positives = 36/82 (43%), Gaps = 19/82 (23%)
Query: 32 PPSEKSLEGEIILLTGLGNGIGRELAKRL--FQQKSLWMCWDIDEKGNNETKQMPE-EQG 88
G+ + + GLG GIG+ +A++ F K ++ +N ++ E E+
Sbjct: 146 LTLAHDPRGKTLGILGLG-GIGKAIARKAAAFGMKIIY---------HNRSRLPEELEKA 195
Query: 89 TRTFHTYKLDVSNREEVLRVAD 110
T++ + +E+L +D
Sbjct: 196 LATYY------VSLDELLAQSD 211
>gnl|CDD|187564 cd05254, dTDP_HR_like_SDR_e, dTDP-6-deoxy-L-lyxo-4-hexulose
reductase and related proteins, extended (e) SDRs.
dTDP-6-deoxy-L-lyxo-4-hexulose reductase, an extended
SDR, synthesizes dTDP-L-rhamnose from
alpha-D-glucose-1-phosphate, providing the precursor of
L-rhamnose, an essential cell wall component of many
pathogenic bacteria. This subgroup has the
characteristic active site tetrad and NADP-binding
motif. This subgroup also contains human MAT2B, the
regulatory subunit of methionine adenosyltransferase
(MAT); MAT catalyzes S-adenosylmethionine synthesis. The
human gene encoding MAT2B encodes two major splicing
variants which are induced in human cell liver cancer
and regulate HuR, an mRNA-binding protein which
stabilizes the mRNA of several cyclins, to affect cell
proliferation. Both MAT2B variants include this extended
SDR domain. 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 = 280
Score = 26.8 bits (60), Expect = 4.6
Identities = 26/114 (22%), Positives = 43/114 (37%), Gaps = 34/114 (29%)
Query: 43 ILLTGLGNG-IGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGT--RTFHTYKLDV 99
IL+TG G +GR L RL +++ E GT +KLD+
Sbjct: 2 ILITG-ATGMLGRALV-RLLKERGY------------------EVIGTGRSRASLFKLDL 41
Query: 100 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN-EQKPDVIRKTFDVNVLA 152
++ + V + +++N A + E P+ + VNVLA
Sbjct: 42 TDPDAVEEAIRDYKP-----DVIINCAAYT--RVDKCESDPE---LAYRVNVLA 85
>gnl|CDD|236016 PRK07424, PRK07424, bifunctional sterol desaturase/short chain
dehydrogenase; Validated.
Length = 406
Score = 27.0 bits (60), Expect = 4.6
Identities = 30/114 (26%), Positives = 53/114 (46%), Gaps = 16/114 (14%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMP-EEQGTRTFHTY 95
SL+G+ + +TG +G+ L K L QQ + + + + T ++ E+ +T H
Sbjct: 175 SLKGKTVAVTGASGTLGQALLKELHQQGAKVVA--LTSNSDKITLEINGEDLPVKTLH-- 230
Query: 96 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVN 149
V +A+ + K V IL+ N GI E+ P+ I K+++VN
Sbjct: 231 -WQVGQEAA---LAELLEK----VDILIINHGI---NVHGERTPEAINKSYEVN 273
>gnl|CDD|240652 cd12175, 2-Hacid_dh_11, Putative D-isomer specific 2-hydroxyacid
dehydrogenases, NAD-binding and catalytic domains.
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 = 311
Score = 26.8 bits (60), Expect = 4.6
Identities = 18/57 (31%), Positives = 29/57 (50%), Gaps = 10/57 (17%)
Query: 12 ILLIIKLLYS---ALESIL-----LTLIPPSEKSLEGEIILLTGLGNGIGRELAKRL 60
++L++ LL A + PS + L G+ + + GLGN IGR +A+RL
Sbjct: 107 VMLMLALLRRLPEADRELRAGRWGRPEGRPS-RELSGKTVGIVGLGN-IGRAVARRL 161
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 26.8 bits (59), Expect = 5.4
Identities = 25/90 (27%), Positives = 41/90 (45%), Gaps = 6/90 (6%)
Query: 40 GEIILLTGLGNGIGRELAKRLFQQKSLWMCWDID-EKGNNETKQMPEEQGTRTFHTYKLD 98
G + L+TG GIG +A L + + D+D E+G+ K + E +D
Sbjct: 10 GRVALVTGAARGIGLGIAAWLIAEGWQVVLADLDRERGSKVAKALGENAWFIA-----MD 64
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGI 128
V++ +V +V + G + LV NA I
Sbjct: 65 VADEAQVAAGVAEVLGQFGRLDALVCNAAI 94
>gnl|CDD|216283 pfam01073, 3Beta_HSD, 3-beta hydroxysteroid dehydrogenase/isomerase
family. The enzyme 3 beta-hydroxysteroid
dehydrogenase/5-ene-4-ene isomerase (3 beta-HSD)
catalyzes the oxidation and isomerisation of 5-ene-3
beta-hydroxypregnene and 5-ene-hydroxyandrostene steroid
precursors into the corresponding 4-ene-ketosteroids
necessary for the formation of all classes of steroid
hormones.
Length = 280
Score = 26.5 bits (59), Expect = 6.1
Identities = 21/107 (19%), Positives = 44/107 (41%), Gaps = 14/107 (13%)
Query: 44 LLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNRE 103
L+TG G +GR + + L ++ L D + + E + + T+ + DV++
Sbjct: 1 LVTGGGGFLGRHIVRLLLREGELQEVRVFDLRFSPELLEDFSKLQVITYI--EGDVTD-- 56
Query: 104 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
+R+ + ++++ A I+ + D I VNV
Sbjct: 57 -----KQDLRRALQGSDVVIHTAAIIDV--FGKAYRDTI---MKVNV 93
>gnl|CDD|224258 COG1339, COG1339, Transcriptional regulator of a riboflavin/FAD
biosynthetic operon [Transcription / Coenzyme
metabolism].
Length = 214
Score = 26.6 bits (59), Expect = 6.2
Identities = 15/52 (28%), Positives = 24/52 (46%), Gaps = 5/52 (9%)
Query: 16 IKLLYSALESILLTLIPPSEKSLEGEIILLTGLGNG---IGRELAKRLFQQK 64
I LLY E + +EGE++ +GLG G + +R F++K
Sbjct: 67 IDLLYKEYEDLSRIFDSGGNIVIEGEVV--SGLGEGRYYVSLPGYRRQFREK 116
>gnl|CDD|132590 TIGR03551, F420_cofH, 7,8-didemethyl-8-hydroxy-5-deazariboflavin
synthase, CofH subunit. This enzyme, together with
CofG, complete the biosynthesis of
7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase, the
chromophore of coenzyme F420. The chromophore is also
used in cyanobacteria DNA photolyases [Biosynthesis of
cofactors, prosthetic groups, and carriers, Other].
Length = 343
Score = 26.5 bits (59), Expect = 6.4
Identities = 14/40 (35%), Positives = 22/40 (55%), Gaps = 8/40 (20%)
Query: 101 NREEVLRVADKVRKE-VGE-VTILVN------NAGIMPCK 132
N E+ R+AD++R++ VG+ VT +VN N C
Sbjct: 15 NLFELFRLADELRRDIVGDTVTYVVNRNINFTNVCYGGCG 54
>gnl|CDD|240643 cd12166, 2-Hacid_dh_7, 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 = 300
Score = 26.4 bits (59), Expect = 7.1
Identities = 10/24 (41%), Positives = 14/24 (58%), Gaps = 1/24 (4%)
Query: 37 SLEGEIILLTGLGNGIGRELAKRL 60
SL +L+ G G IGR + +RL
Sbjct: 129 SLADRRVLIVGYG-SIGRAIERRL 151
>gnl|CDD|187580 cd05272, TDH_SDR_e, L-threonine dehydrogenase, extended (e) SDRs.
This subgroup contains members identified as L-threonine
dehydrogenase (TDH). TDH catalyzes the zinc-dependent
formation of 2-amino-3-ketobutyrate from L-threonine via
NAD(H)-dependent oxidation. This group is distinct from
TDHs that are members of the medium chain
dehydrogenase/reductase family. This group has the
NAD-binding motif and active site tetrad 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 = 308
Score = 26.1 bits (58), Expect = 7.7
Identities = 27/112 (24%), Positives = 48/112 (42%), Gaps = 25/112 (22%)
Query: 43 ILLTGLGNG-IGRELAKRL---FQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLD 98
IL+TG G G IG ELAK L + + ++ DI + + P E LD
Sbjct: 2 ILITG-GLGQIGSELAKLLRKRYGKDNVIAS-DIRKPPAHVVLSGPFE---------YLD 50
Query: 99 VSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 150
V + + + + + +T +++ A ++ E+ P + DVN+
Sbjct: 51 VLDFKSLEEIVVNHK-----ITWIIHLAALLSAV--GEKNPPLAW---DVNM 92
>gnl|CDD|217244 pfam02826, 2-Hacid_dh_C, D-isomer specific 2-hydroxyacid
dehydrogenase, NAD binding domain. This domain is
inserted into the catalytic domain, the large
dehydrogenase and D-lactate dehydrogenase families in
SCOP. N-terminal portion of which is represented by
family pfam00389.
Length = 175
Score = 25.9 bits (58), Expect = 8.2
Identities = 11/25 (44%), Positives = 17/25 (68%), Gaps = 1/25 (4%)
Query: 36 KSLEGEIILLTGLGNGIGRELAKRL 60
+ L G+ + + GLG IGR +A+RL
Sbjct: 31 RELSGKTVGIIGLGR-IGRAVARRL 54
>gnl|CDD|187537 cd05226, SDR_e_a, Extended (e) and atypical (a) SDRs. Extended
or atypical short-chain dehydrogenases/reductases
(SDRs, aka tyrosine-dependent oxidoreductases) 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.
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. 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 = 176
Score = 25.8 bits (57), Expect = 8.6
Identities = 10/21 (47%), Positives = 13/21 (61%)
Query: 43 ILLTGLGNGIGRELAKRLFQQ 63
IL+ G IGR LA+ L +Q
Sbjct: 1 ILILGATGFIGRALARELLEQ 21
>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 = 25.9 bits (58), Expect = 9.4
Identities = 9/14 (64%), Positives = 11/14 (78%), Gaps = 1/14 (7%)
Query: 47 GLGNGIGRELAKRL 60
GLG IGR +A+RL
Sbjct: 148 GLGR-IGRAIARRL 160
>gnl|CDD|236422 PRK09234, fbiC, FO synthase; Reviewed.
Length = 843
Score = 26.1 bits (58), Expect = 9.4
Identities = 12/24 (50%), Positives = 18/24 (75%), Gaps = 2/24 (8%)
Query: 103 EEVLRVADKVRKE-VG-EVTILVN 124
E V R+AD +R++ VG +VT +VN
Sbjct: 504 EAVCRLADDLRRDVVGDDVTYVVN 527
>gnl|CDD|216549 pfam01520, Amidase_3, N-acetylmuramoyl-L-alanine amidase. This
enzyme domain cleaves the amide bond between
N-acetylmuramoyl and L-amino acids in bacterial cell
walls.
Length = 172
Score = 25.7 bits (57), Expect = 9.9
Identities = 8/34 (23%), Positives = 13/34 (38%)
Query: 92 FHTYKLDVSNREEVLRVADKVRKEVGEVTILVNN 125
+ N E R+A + E+ +V L N
Sbjct: 87 TEVFYYSAGNSAESKRLAQAILDELVKVLGLKNR 120
>gnl|CDD|236173 PRK08177, PRK08177, short chain dehydrogenase; Provisional.
Length = 225
Score = 25.8 bits (57), Expect = 10.0
Identities = 18/87 (20%), Positives = 37/87 (42%), Gaps = 8/87 (9%)
Query: 43 ILLTGLGNGIGRELAKRLFQQKSLWMCWDIDEKGNNETKQMPEEQGTRTFHTYKLDVSNR 102
L+ G G+G L RL ++ W + +Q Q H KLD+++
Sbjct: 4 ALIIGASRGLGLGLVDRLLERG-----WQVTATVRG-PQQDTALQALPGVHIEKLDMNDP 57
Query: 103 EEVLRVADKVRKEVGEVTILVNNAGIM 129
+ ++ +++ + ++ + NAGI
Sbjct: 58 ASLDQLLQRLQGQRFDLLFV--NAGIS 82
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
0.319 0.137 0.396
Gapped
Lambda K H
0.267 0.0805 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,746,543
Number of extensions: 713007
Number of successful extensions: 1425
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1228
Number of HSP's successfully gapped: 324
Length of query: 155
Length of database: 10,937,602
Length adjustment: 89
Effective length of query: 66
Effective length of database: 6,990,096
Effective search space: 461346336
Effective search space used: 461346336
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 55 (24.8 bits)