RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy8445
(131 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 = 149 bits (379), Expect = 3e-46
Identities = 59/116 (50%), Positives = 76/116 (65%), Gaps = 1/116 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G+GIGR LA +F + +V DI+EKG ET + + G K +H YK DVS REE
Sbjct: 4 ITGGGSGIGRLLALEFAKRGAKVVILDINEKGAEETANNVRKAGGK-VHYYKCDVSKREE 62
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
V A K++KEVG+VTIL+NNAG++ K L E + I KTF+VN LAHFW F
Sbjct: 63 VYEAAKKIKKEVGDVTILINNAGVVSGKKLLELPDEEIEKTFEVNTLAHFWTTKAF 118
>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 = 106 bits (266), Expect = 2e-29
Identities = 36/116 (31%), Positives = 57/116 (49%), Gaps = 2/116 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIGR +A++ + +V D +E+ E + G N + DVS+ E+V
Sbjct: 4 TGASSGIGRAIARRLAREGAKVVLADRNEEALAELAAIEALGG--NAVAVQADVSDEEDV 61
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHFW 125
+ ++ +E G + ILVNNAGI PL E + + DVN+ F +
Sbjct: 62 EALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNLTGVFLLTRAAL 117
>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 = 97.2 bits (242), Expect = 7e-26
Identities = 35/119 (29%), Positives = 53/119 (44%), Gaps = 4/119 (3%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN-R 66
TGA +GIGR +A+ + +V + +E+ ++E G DVS+
Sbjct: 11 TGASSGIGRAIARALAREGARVVVAARRSEEEAAEALAAAIKEAGGGRAAAVAADVSDDE 70
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
E V + +E G + ILVNNAGI PL E + + DVN+L F +
Sbjct: 71 ESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLGAFLLTRAA 129
>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 = 89.7 bits (223), Expect = 5e-23
Identities = 35/112 (31%), Positives = 60/112 (53%), Gaps = 2/112 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDID-EKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TGA GIGR +A++ +V D++ E+ T Q + E GY N DV++++
Sbjct: 7 ITGAAQGIGRAIAERLAADGFNIVLADLNLEEAAKSTIQEISEAGY-NAVAVGADVTDKD 65
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
+V + D+ ++ G ++VNNAGI P PL + ++K + VNV +
Sbjct: 66 DVEALIDQAVEKFGSFDVMVNNAGIAPITPLLTITEEDLKKVYAVNVFGVLF 117
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 90.8 bits (226), Expect = 2e-22
Identities = 38/105 (36%), Positives = 55/105 (52%), Gaps = 1/105 (0%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGAG+GIGRE A F + +V DIDE T +++ G H Y++DVS+ + +
Sbjct: 321 TGAGSGIGRETALAFAREGAEVVASDIDEAAAERTAELIRAAGAV-AHAYRVDVSDADAM 379
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
A+ VR E G I+VNNAGI + + + DVN+
Sbjct: 380 EAFAEWVRAEHGVPDIVVNNAGIGMAGGFLDTSAEDWDRVLDVNL 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 = 86.7 bits (215), Expect = 6e-22
Identities = 33/111 (29%), Positives = 64/111 (57%), Gaps = 1/111 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG GIG+ +A++ + + D++E+ ET + + + G K + YKLDVS++++
Sbjct: 5 VTGGAQGIGKGIAERLAKDGFAVAVADLNEETAKETAKEINQAGGKAV-AYKLDVSDKDQ 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
V D+ ++ G ++VNNAG+ P P+ E + ++K ++VNV +
Sbjct: 64 VFSAIDQAAEKFGGFDVMVNNAGVAPITPILEITEEELKKVYNVNVKGVLF 114
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 86.1 bits (214), Expect = 2e-21
Identities = 32/105 (30%), Positives = 46/105 (43%), Gaps = 5/105 (4%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG GIG A+ + D+DE ET + LDV++
Sbjct: 11 TGGARGIGLATARALAALGARVAIGDLDEALAKETAA-----ELGLVVGGPLDVTDPASF 65
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
D V ++G + +LVNNAG+MP P ++ V R+ DVNV
Sbjct: 66 AAFLDAVEADLGPIDVLVNNAGVMPVGPFLDEPDAVTRRILDVNV 110
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 83.6 bits (207), Expect = 1e-20
Identities = 38/112 (33%), Positives = 59/112 (52%), Gaps = 5/112 (4%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGAG GIG +AK+ V+ KV +V D +E+ L + G K I K DVS+R+
Sbjct: 8 TGAGQGIGFAIAKRLVEDGFKVAIV--DYNEETAQAAADKLSKDGGKAI-AVKADVSDRD 64
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
+V +V G++ ++VNNAG+ P P+ + K +++NV W
Sbjct: 65 QVFAAVRQVVDTFGDLNVVVNNAGVAPTTPIETITEEQFDKVYNINVGGVIW 116
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 83.3 bits (207), Expect = 1e-20
Identities = 30/106 (28%), Positives = 45/106 (42%), Gaps = 1/106 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIGR +A + +V +D +E+ L G DVS+
Sbjct: 10 VTGASRGIGRAIALRLAADGAKVVIYDSNEEAAEALAAELRAAGG-EARVLVFDVSDEAA 68
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V + + + G + ILVNNAGI L + + DVN+
Sbjct: 69 VRALIEAAVEAFGALDILVNNAGITRDALLPRMSEEDWDRVIDVNL 114
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 83.1 bits (206), Expect = 2e-20
Identities = 35/122 (28%), Positives = 52/122 (42%), Gaps = 11/122 (9%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIG A+ + KV L + + + +E G LDV++R
Sbjct: 11 ITGASSGIGEATARALAEAGAKVVLAARREER-----LEALADEIGAGAALALALDVTDR 65
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW----VLA 122
V + + +E G + ILVNNAG+ PL+E D + D NV VL
Sbjct: 66 AAVEAAIEALPEEFGRIDILVNNAGLALGDPLDEADLDDWDRMIDTNVKGLLNGTRAVLP 125
Query: 123 HF 124
Sbjct: 126 GM 127
>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 = 82.3 bits (204), Expect = 3e-20
Identities = 34/115 (29%), Positives = 53/115 (46%), Gaps = 1/115 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +A+ + + D + + E L GY TYKLDV++
Sbjct: 3 VTGAAQGIGYAVARALAEAGARVAAVDRNFEQLLELVADLRRYGYP-FATYKLDVADSAA 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
V V ++ +E G + +LVN AGI+ ++ + + TF VN F V
Sbjct: 62 VDEVVQRLEREYGPIDVLVNVAGILRLGAIDSLSDEDWQATFAVNTFGVFNVSQA 116
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 82.2 bits (204), Expect = 3e-20
Identities = 31/117 (26%), Positives = 46/117 (39%), Gaps = 3/117 (2%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIG +A++F +V D +E+ + G DVS+ +V
Sbjct: 11 TGASSGIGEGIARRFAAEGARVVVTDRNEEAAERVAAEILAGG--RAIAVAADVSDEADV 68
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHFWVLAHFW 125
+ G V ILVNNAG PL + + F VNV + +
Sbjct: 69 EAAVAAALERFGSVDILVNNAGTTHRNGPLLDVDEAEFDRIFAVNVKSPYLWTQAAV 125
>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 = 81.4 bits (202), Expect = 5e-20
Identities = 33/83 (39%), Positives = 44/83 (53%), Gaps = 1/83 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA GIGR +A + + D E+ ET + ++ G N + DVS+RE V
Sbjct: 6 TGASRGIGRAIALRLAAEGAKVAVTDRSEEAAAETVEEIKALG-GNAAALEADVSDREAV 64
Query: 70 LRVADKVRKEVGEVTILVNNAGI 92
+ +KV E G V ILVNNAGI
Sbjct: 65 EALVEKVEAEFGPVDILVNNAGI 87
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 83.7 bits (208), Expect = 6e-20
Identities = 34/112 (30%), Positives = 49/112 (43%), Gaps = 2/112 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA GIG+ AK+ +V D+DE+ L DV++ V
Sbjct: 428 TGAAGGIGKATAKRLAAEGACVVLADLDEEAAEAAAAELGGPD--RALGVACDVTDEAAV 485
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
++ G V I+V+NAGI P+ E + R++FDVN HF V
Sbjct: 486 QAAFEEAALAFGGVDIVVSNAGIAISGPIEETSDEDWRRSFDVNATGHFLVA 537
>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 = 81.1 bits (201), Expect = 1e-19
Identities = 35/112 (31%), Positives = 55/112 (49%), Gaps = 5/112 (4%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIG+E A++ + V + C + EKG ++ +E G + +LD+S+
Sbjct: 6 ITGANSGIGKETARELAKRGAHVIIACRNE-EKGEEAAAEIKKETGNAKVEVIQLDLSSL 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
V + A++ + IL+NNAGIM D F VN L HF
Sbjct: 65 ASVRQFAEEFLARFPRLDILINNAGIMAPP--RRLTKDGFELQFAVNYLGHF 114
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 80.7 bits (200), Expect = 1e-19
Identities = 34/107 (31%), Positives = 62/107 (57%), Gaps = 4/107 (3%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA GIGR +A+ + KV ++ +DI+E+ E + ++E+G + K DVS+ E
Sbjct: 11 TGASGGIGRAIAELLAKEGAKV-VIAYDINEEAAQELLEEIKEEG-GDAIAVKADVSSEE 68
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+V + +++ ++ G++ ILVNNAGI + + + + DVN+
Sbjct: 69 DVENLVEQIVEKFGKIDILVNNAGISNFGLVTDMTDEEWDRVIDVNL 115
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 80.1 bits (198), Expect = 2e-19
Identities = 38/112 (33%), Positives = 62/112 (55%), Gaps = 1/112 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +AK + + T+V DI+++ ++ E G H Y DV++ +
Sbjct: 15 ITGASYGIGFAIAKAYAKAGATIVFNDINQELVDKGLAAYRELGI-EAHGYVCDVTDEDG 73
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V + ++ KEVG + ILVNNAGI+ P+ E + R+ D+++ A F V
Sbjct: 74 VQAMVSQIEKEVGVIDILVNNAGIIKRIPMLEMSAEDFRQVIDIDLNAPFIV 125
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 80.0 bits (198), Expect = 3e-19
Identities = 33/107 (30%), Positives = 53/107 (49%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIG ELAKQ + L+ E + LE++ + D+S+ E +
Sbjct: 12 TGASSGIGAELAKQLARRGYNLILVARREDKLEALAKELEDKTGVEVEVIPADLSDPEAL 71
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
R+ D++++ G + +LVNNAG P E D + +N+LA
Sbjct: 72 ERLEDELKERGGPIDVLVNNAGFGTFGPFLELSLDEEEEMIQLNILA 118
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 76.1 bits (188), Expect = 2e-18
Identities = 26/114 (22%), Positives = 46/114 (40%), Gaps = 4/114 (3%)
Query: 10 TGAGNGIGRELAKQFVQH---KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
TG G+G LA+ + LV G E LE G + DV++R
Sbjct: 6 TGGTGGLGLALARWLAAEGARHLVLVSRRGPAPGAAELVAELEALG-AEVTVAACDVADR 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
+ + + + +G + +V+NAG++ PL E P+ + V + +
Sbjct: 65 DALAALLAALPAALGPLDGVVHNAGVLDDGPLEELTPERFERVLAPKVTGAWNL 118
>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 = 77.3 bits (191), Expect = 3e-18
Identities = 31/111 (27%), Positives = 47/111 (42%), Gaps = 10/111 (9%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGY---KNIHTYKLDVSNR 66
TG +GIG LA ++ LE G N+ +LDV++
Sbjct: 6 TGCSSGIGLALALALAAQGYRVI-------ATARNPDKLESLGELLNDNLEVLELDVTDE 58
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 117
E + +V + G + +LVNNAG PL E + +R+ F+VNV
Sbjct: 59 ESIKAAVKEVIERFGRIDVLVNNAGYGLFGPLEETSIEEVRELFEVNVFGP 109
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 76.9 bits (190), Expect = 3e-18
Identities = 33/114 (28%), Positives = 45/114 (39%), Gaps = 1/114 (0%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA G+G A+ + T+ D E LE G + H D+++ V
Sbjct: 13 TGAARGLGAAFAEALAEAGATVAFNDGLAAEARELAAALEAAGGR-AHAIAADLADPASV 71
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
R D +G + LVNNAGI K E D +VNV F +L
Sbjct: 72 QRFFDAAAAALGGLDGLVNNAGITNSKSATELDIDTWDAVMNVNVRGTFLMLRA 125
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 76.5 bits (189), Expect = 5e-18
Identities = 34/114 (29%), Positives = 52/114 (45%), Gaps = 5/114 (4%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA GIGR +A + +V +V DI T +++E G K ++DV +R
Sbjct: 12 TGAARGIGRAIAVRLAADGAEVIVV--DICGDDAAATAELVEAAGGK-ARARQVDVRDRA 68
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
+ ++ G + ILV NAGI P P E + + DVN+ F +
Sbjct: 69 ALKAAVAAGVEDFGRLDILVANAGIFPLTPFAEMDDEQWERVIDVNLTGTFLLT 122
>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 = 75.8 bits (187), Expect = 7e-18
Identities = 41/113 (36%), Positives = 58/113 (51%), Gaps = 2/113 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TGA GIGR +AK+ + ++V + + E +E G K I + DVS+ +
Sbjct: 9 TGASRGIGRAIAKRLARDGASVVVNYASSKAAAEEVVAEIEAAGGKAI-AVQADVSDPSQ 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
V R+ D K G V ILVNNAG+M KP+ E + + F VN F+VL
Sbjct: 68 VARLFDAAEKAFGGVDILVNNAGVMLKKPIAETSEEEFDRMFTVNTKGAFFVL 120
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 76.1 bits (188), Expect = 8e-18
Identities = 35/111 (31%), Positives = 49/111 (44%), Gaps = 8/111 (7%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIGR A F +V DI+E G L G N T LDV++R
Sbjct: 6 ITGAASGIGRATALLFAAEGWRVGAY--DINEAGLAALAAEL---GAGNAWTGALDVTDR 60
Query: 67 EEV-LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+AD G + +L NNAGI+ P + + + D+NV
Sbjct: 61 AAWDAALADFAAATGGRLDVLFNNAGILRGGPFEDIPLEAHDRVIDINVKG 111
>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 = 76.0 bits (187), Expect = 8e-18
Identities = 37/109 (33%), Positives = 60/109 (55%), Gaps = 2/109 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLV-CWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TGA GIG +A+ VQH + +V C +K + + GY + Y+ D+SN E
Sbjct: 11 VTGASVGIGAAVARALVQHGMKVVGCARRVDKIEALAAE-CQSAGYPTLFPYQCDLSNEE 69
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++L + +R + V + +NNAG+ +PL K + ++ FDVNVLA
Sbjct: 70 QILSMFSAIRTQHQGVDVCINNAGLARPEPLLSGKTEGWKEMFDVNVLA 118
>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 = 75.9 bits (187), Expect = 1e-17
Identities = 32/112 (28%), Positives = 51/112 (45%), Gaps = 2/112 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIG +AK+ +V DID K QG + DV++ +V
Sbjct: 7 TGGASGIGLAIAKRLAAEGAAVVVADIDP--EIAEKVAEAAQGGPRALGVQCDVTSEAQV 64
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
++ E G + I+V+NAGI P+ E + ++ D+N+ HF V
Sbjct: 65 QSAFEQAVLEFGGLDIVVSNAGIATSSPIAETSLEDWNRSMDINLTGHFLVS 116
>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 = 74.9 bits (185), Expect = 2e-17
Identities = 31/84 (36%), Positives = 48/84 (57%), Gaps = 2/84 (2%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI-DEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TGA GIGR +A + + ++ E+G E + L+ G K + DVS+RE+
Sbjct: 4 TGASRGIGRAIALKLAKEGAKVIITYRSSEEGAEEVVEELKAYGVKAL-GVVCDVSDRED 62
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
V V +++ +E+G + ILVNNAGI
Sbjct: 63 VKAVVEEIEEELGPIDILVNNAGI 86
>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 = 74.3 bits (183), Expect = 3e-17
Identities = 29/107 (27%), Positives = 47/107 (43%), Gaps = 3/107 (2%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIG AK ++ + D +E ++ + DV++ E++
Sbjct: 6 TGGASGIGLATAKLLLKKGAKVAILDRNENPG-AAAELQAINPKVKATFVQCDVTSWEQL 64
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNE--QKPDVIRKTFDVNV 114
K ++ G V IL+NNAGI+ K + P KT DVN+
Sbjct: 65 AAAFKKAIEKFGRVDILINNAGILDEKSYLFAGKLPPPWEKTIDVNL 111
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 74.5 bits (184), Expect = 3e-17
Identities = 33/114 (28%), Positives = 53/114 (46%), Gaps = 4/114 (3%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA G+GR +A + + V + DE+ E + +E G + + DV+++
Sbjct: 12 TGAARGLGRAIALRLARAGADVVVHY-RSDEEAAEELVEAVEALGRR-AQAVQADVTDKA 69
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
+ + G + ILVNNAGI KPL + D + DVN+ F +L
Sbjct: 70 ALEAAVAAAVERFGRIDILVNNAGIFEDKPLADMSDDEWDEVIDVNLSGVFHLL 123
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 74.1 bits (183), Expect = 3e-17
Identities = 35/107 (32%), Positives = 47/107 (43%), Gaps = 4/107 (3%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA GIGR +A++ V + E G + G K + DVS+ E
Sbjct: 11 TGASRGIGRAIAERLAAQGANVVINY-ASSEAGAEALVAEIGALGGK-ALAVQGDVSDAE 68
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V R D+ + E G V ILVNNAGI L K + + D N+
Sbjct: 69 SVERAVDEAKAEFGGVDILVNNAGITRDNLLMRMKEEDWDRVIDTNL 115
>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 = 73.9 bits (182), Expect = 5e-17
Identities = 31/109 (28%), Positives = 50/109 (45%), Gaps = 1/109 (0%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIG +A+ +V D E+G ++ + G I+ DV+ +E+
Sbjct: 7 TGAASGIGLAIARALAAAGANVVVNDFGEEGAEAAAKVAGDAGGSVIY-LPADVTKEDEI 65
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ E G + ILVNNAGI P+ E P+ + V + + F
Sbjct: 66 ADMIAAAAAEFGGLDILVNNAGIQHVAPIEEFPPEDWDRIIAVMLTSAF 114
>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 = 73.1 bits (180), Expect = 9e-17
Identities = 28/119 (23%), Positives = 49/119 (41%), Gaps = 21/119 (17%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYK----------NI 56
+TG +GIG+ LAK+ V+ V +V ++ LEE + +
Sbjct: 6 ITGGSSGIGKALAKELVKEGANVIIV---------ARSESKLEEAVEEIEAEANASGQKV 56
Query: 57 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
D+S+ EEV + + ++ G ++VN AGI + + + DVN
Sbjct: 57 SYISADLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPGLFEDLTAEEFERGMDVNYF 115
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 73.3 bits (180), Expect = 1e-16
Identities = 39/118 (33%), Positives = 58/118 (49%), Gaps = 10/118 (8%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TG GIGR +A+ F++ KV V ++ E E ++ K + T K DV NR
Sbjct: 12 ITGGTRGIGRAIAEAFLREGAKV-AVLYNSAENEAKELRE-------KGVFTIKCDVGNR 63
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
++V + + V KE G V +LVNNAGIM P E + K +N+ + F
Sbjct: 64 DQVKKSKEVVEKEFGRVDVLVNNAGIMYLMPFEEFDEEKYNKMIKINLNGAIYTTYEF 121
>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 = 72.0 bits (177), Expect = 2e-16
Identities = 38/122 (31%), Positives = 60/122 (49%), Gaps = 17/122 (13%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQH-KVTLVCWDIDEKGNNETKQMLEE--QGYKNIHT 58
LT N +TG +GIG LA++F++ ++ G E + L E + NIHT
Sbjct: 3 LTGNTVLITGGTSGIGLALARKFLEAGNTVIIT------GRREER--LAEAKKELPNIHT 54
Query: 59 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKP----DVIRKTFDVNV 114
LDV + E V +A+ + E + IL+NNAGI +P++ + P D D N+
Sbjct: 55 IVLDVGDAESVEALAEALLSEYPNLDILINNAGIQ--RPIDLRDPASDLDKADTEIDTNL 112
Query: 115 LA 116
+
Sbjct: 113 IG 114
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 71.5 bits (176), Expect = 4e-16
Identities = 30/115 (26%), Positives = 50/115 (43%), Gaps = 10/115 (8%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +A FV+ ++ +D + T+ LDVS+
Sbjct: 13 VTGAAQGIGYAVALAFVEAGAKVIGFDQAFLTQEDYP----------FATFVLDVSDAAA 62
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
V +V ++ E G + +LVN AGI+ + + ++TF VN F +
Sbjct: 63 VAQVCQRLLAETGPLDVLVNAAGILRMGATDSLSDEDWQQTFAVNAGGAFNLFRA 117
>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 = 70.7 bits (174), Expect = 8e-16
Identities = 35/110 (31%), Positives = 53/110 (48%), Gaps = 4/110 (3%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIG ELA + ++ L + E K E G + H LD+S+
Sbjct: 8 ITGASSGIGEELAYHLARLGARLVLSARREERL--EEVKSECLELGAPSPHVVPLDMSDL 65
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
E+ +V ++ K G + IL+NNAGI ++ DV RK +VN
Sbjct: 66 EDAEQVVEEALKLFGGLDILINNAGISMRSLFHDTSIDVDRKIMEVNYFG 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 = 69.6 bits (171), Expect = 2e-15
Identities = 35/111 (31%), Positives = 58/111 (52%), Gaps = 5/111 (4%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
LTGA GIGR LA++ ++ +V E+ E K E + + T K D+S+
Sbjct: 4 LTGASRGIGRALAEELLKRGSPSVVVLLARSEEPLQELK--EELRPGLRVTTVKADLSDA 61
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 116
V ++ + +RK GE +L+NNAG + P + D ++K FD+N+ +
Sbjct: 62 AGVEQLLEAIRKLDGERDLLINNAGSLGPVSKIEFIDLDELQKYFDLNLTS 112
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 69.1 bits (170), Expect = 3e-15
Identities = 31/110 (28%), Positives = 54/110 (49%), Gaps = 1/110 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIG E+A + +V D++++ + L++ G K I +DV++ E
Sbjct: 9 VTGAASGIGLEIALALAKEGAKVVIADLNDEAAAAAAEALQKAGGKAIG-VAMDVTDEEA 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ D + G V ILVNNAGI P+ + + +K + + F
Sbjct: 68 INAGIDYAVETFGGVDILVNNAGIQHVAPIEDFPTEKWKKMIAIMLDGAF 117
>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 = 68.2 bits (167), Expect = 5e-15
Identities = 34/110 (30%), Positives = 50/110 (45%), Gaps = 6/110 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIGRE A F ++ + +DIDE G + E G +N+ LDV++R
Sbjct: 5 ITGAASGIGRETALLFARNGWFVGLYDIDEDG---LAALAAELGAENVVAGALDVTDRAA 61
Query: 69 VLRVA--DKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
A D G + L NNAG+ P + + D+NV
Sbjct: 62 -WAAALADFAAATGGRLDALFNNAGVGRGGPFEDVPLAAHDRMVDINVKG 110
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 69.5 bits (170), Expect = 5e-15
Identities = 31/108 (28%), Positives = 54/108 (50%), Gaps = 7/108 (6%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIH-TYKLDVSNRE 67
+TG GIGR +A +F L+ D D +G + + L ++ H + + D+++
Sbjct: 274 ITGGARGIGRAVADRFAAAGDRLLIIDRDAEGAKKLAEALGDE-----HLSVQADITDEA 328
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNV 114
V +++ G + +LVNNAGI KP EQ + + +DVN+
Sbjct: 329 AVESAFAQIQARWGRLDVLVNNAGIAEVFKPSLEQSAEDFTRVYDVNL 376
Score = 53.7 bits (129), Expect = 2e-09
Identities = 26/114 (22%), Positives = 50/114 (43%), Gaps = 6/114 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIGR ++F + +V D + + E L H +DVS+ +
Sbjct: 10 VTGAAGGIGRAACQRFARAGDQVVVADRNVERARERADSLGPDH----HALAMDVSDEAQ 65
Query: 69 VLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFDVNVLAHFWV 120
+ +++ +E G + +LVNNAG+ + + + +N+ + V
Sbjct: 66 IREGFEQLHREFGRIDVLVNNAGVTDPTMTATLDTTLEEFARLQAINLTGAYLV 119
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 68.4 bits (168), Expect = 6e-15
Identities = 22/84 (26%), Positives = 43/84 (51%), Gaps = 1/84 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG G+GR +A+ Q L D++++ E G + + Y +V++ E+V
Sbjct: 11 TGGAQGLGRAMAEYLAQKGAKLALIDLNQEKLEEAVAECGALGTE-VRGYAANVTDEEDV 69
Query: 70 LRVADKVRKEVGEVTILVNNAGIM 93
++ ++ G++ L+NNAGI+
Sbjct: 70 EATFAQIAEDFGQLNGLINNAGIL 93
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 69.5 bits (170), Expect = 7e-15
Identities = 31/113 (27%), Positives = 47/113 (41%), Gaps = 1/113 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQ-GYKNIHTYKLDVSNRE 67
+TG GIGRE A++ +V D++ + + Q G K+DV++ +
Sbjct: 419 VTGGAGGIGRETARRLAAEGAHVVLADLNLEAAEAVAAEINGQFGAGRAVALKMDVTDEQ 478
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V V G V I+VNNAGI P E + D+ +F V
Sbjct: 479 AVKAAFADVALAYGGVDIVVNNAGIATSSPFEETTLQEWQLNLDILATGYFLV 531
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 67.5 bits (165), Expect = 1e-14
Identities = 33/119 (27%), Positives = 57/119 (47%), Gaps = 12/119 (10%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L + +TG GIG+ + + + ++ +DI E N+ +K+
Sbjct: 4 LKDKVAIVTGGSQGIGKAVVNRLKEEGSNVINFDIKEPSYNDVDY------------FKV 51
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
DVSN+E+V++ D V + G + ILVNNAGI ++ + D + +VNV F +
Sbjct: 52 DVSNKEQVIKGIDYVISKYGRIDILVNNAGIESYGAIHAVEEDEWDRIINVNVNGIFLM 110
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 67.8 bits (166), Expect = 1e-14
Identities = 33/110 (30%), Positives = 51/110 (46%), Gaps = 4/110 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIGR +A+ F + + D+ E T L + DV++ +V
Sbjct: 17 TGGASGIGRAIAEAFAEAGARVHVCDVSEAALAATAARLPG---AKVTATVADVADPAQV 73
Query: 70 LRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHF 118
RV D + G + +LVNNAGI P ++E P+ +T VN+ F
Sbjct: 74 ERVFDTAVERFGGLDVLVNNAGIAGPTGGIDEITPEQWEQTLAVNLNGQF 123
>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 = 67.3 bits (165), Expect = 2e-14
Identities = 34/115 (29%), Positives = 60/115 (52%), Gaps = 4/115 (3%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TG +GIGR +A F + V + +E ETK+++EE+G K + D+ +
Sbjct: 31 ITGGDSGIGRAVAIAFAREGADVAINYLPEEEDDAEETKKLIEEEGRKCL-LIPGDLGDE 89
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
+ +V KE G++ ILVNNA P + + + + + KTF N+ + F++
Sbjct: 90 SFCRDLVKEVVKEFGKLDILVNNAAYQHPQESIEDITTEQLEKTFRTNIFSMFYL 144
>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 = 67.0 bits (164), Expect = 2e-14
Identities = 32/126 (25%), Positives = 57/126 (45%), Gaps = 5/126 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWD-IDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TG GIG +A+ + + + + +++ ++ G K YK DVS++E
Sbjct: 14 TGGSRGIGLAIARALAEAGADVAIIYNSAPRAEEKAEELAKKYGVK-TKAYKCDVSSQES 72
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV---LAHFW 125
V + +++K+ G++ IL+ NAGI KP + + K DVN+ F A +
Sbjct: 73 VEKTFKQIQKDFGKIDILIANAGITVHKPALDYTYEQWNKVIDVNLNGVFNCAQAAAKIF 132
Query: 126 VSNLSG 131
G
Sbjct: 133 KKQGKG 138
>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 = 67.0 bits (164), Expect = 2e-14
Identities = 37/127 (29%), Positives = 57/127 (44%), Gaps = 6/127 (4%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TGA +GIG+ +A + +V + E E + ++ G K I + DVS E+
Sbjct: 9 TGASSGIGKAIAIRLATAGANVVVNYRSKEDAAEEVVEEIKAVGGKAI-AVQADVSKEED 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV----LAHF 124
V+ + KE G + ILVNNAG+ +E + K DVN+ F + F
Sbjct: 68 VVALFQSAIKEFGTLDILVNNAGLQGDASSHEMTLEDWNKVIDVNLTGQFLCAREAIKRF 127
Query: 125 WVSNLSG 131
S + G
Sbjct: 128 RKSKIKG 134
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 67.0 bits (164), Expect = 2e-14
Identities = 28/113 (24%), Positives = 50/113 (44%), Gaps = 4/113 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
LTGA +GIG +A++++ +V DI + LDV+ ++
Sbjct: 11 LTGAASGIGEAVAERYLAEGARVVIADIKPARARLAALEIGPAAI----AVSLDVTRQDS 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
+ R+ + G + IL NNA + P+ + D + F VNV F+++
Sbjct: 67 IDRIVAAAVERFGGIDILFNNAALFDMAPILDISRDSYDRLFAVNVKGLFFLM 119
>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 = 66.6 bits (163), Expect = 2e-14
Identities = 28/110 (25%), Positives = 47/110 (42%), Gaps = 4/110 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG G+G A+ V +V DI ++ L + + LDV++ +
Sbjct: 11 TGGARGLGLAHARLLVAEGAKVVLSDILDEEGQAAAAELGDA----ARFFHLDVTDEDGW 66
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
V D R+ G + +LVNNAGI+ + + R+ D+N+ F
Sbjct: 67 TAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDINLTGVFL 116
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 66.9 bits (164), Expect = 2e-14
Identities = 35/117 (29%), Positives = 49/117 (41%), Gaps = 3/117 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIGR LA + + LV +E Q L + G + + DVS+ E
Sbjct: 6 ITGASEGIGRALAVRLARAGAQLVLAARNETRLASLAQELADHGGEAL-VVPTDVSDAEA 64
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQK-PDVIRKTFDVNVLAHFWVLAHF 124
R+ + G + ILVNNAGI +E V + VN L + H
Sbjct: 65 CERLIEAAVARFGGIDILVNNAGITMWSRFDELTDLSVFERVMRVNYLGAVY-CTHA 120
>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 = 66.2 bits (162), Expect = 4e-14
Identities = 34/111 (30%), Positives = 56/111 (50%), Gaps = 1/111 (0%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA GIG +A + +V +E+ E +Q++E++G + DVS+ E +
Sbjct: 11 TGASRGIGFGIASGLAEAGANIVINSRNEEKAEEAQQLIEKEG-VEATAFTCDVSDEEAI 69
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
+ + ++ G++ ILVNNAGI+ P E R DVN+ F+V
Sbjct: 70 KAAVEAIEEDFGKIDILVNNAGIIRRHPAEEFPEAEWRDVIDVNLNGVFFV 120
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 66.3 bits (162), Expect = 4e-14
Identities = 29/91 (31%), Positives = 48/91 (52%), Gaps = 2/91 (2%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L N +TGA GIG+ A Q ++ DI E + ET ++ G K Y +
Sbjct: 4 LENKVAVITGASTGIGQASAIALAQEGAYVLAVDIAEAVS-ETVDKIKSNGGK-AKAYHV 61
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGI 92
D+S+ ++V A +++++ G V +L NNAG+
Sbjct: 62 DISDEQQVKDFASEIKEQFGRVDVLFNNAGV 92
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 65.4 bits (160), Expect = 8e-14
Identities = 35/110 (31%), Positives = 54/110 (49%), Gaps = 2/110 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTL-VCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
T + +GIG+ A Q + + W DE+G ET + + G +LD+S+ E
Sbjct: 8 TASDSGIGKACALLLAQQGFDIGITWHSDEEGAKETAEEVRSHG-VRAEIRQLDLSDLPE 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ DK+ + +G + +LVNNAG M P + D RK F V+V F
Sbjct: 67 GAQALDKLIQRLGRIDVLVNNAGAMTKAPFLDMDFDEWRKIFTVDVDGAF 116
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 64.9 bits (159), Expect = 8e-14
Identities = 32/111 (28%), Positives = 46/111 (41%), Gaps = 18/111 (16%)
Query: 10 TGAGNGIGRELAKQFVQH---KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
TGA GIGR +Q + KV D + + + G + + +LDV++
Sbjct: 12 TGANRGIGRAFVEQLLARGAAKVYAAARDPES---------VTDLGPR-VVPLQLDVTDP 61
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFDVNVLA 116
V A+ +VTILVNNAGI L E D +R + N
Sbjct: 62 ASVAAAAEAA----SDVTILVNNAGIFRTGSLLLEGDEDALRAEMETNYFG 108
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 64.8 bits (158), Expect = 1e-13
Identities = 34/126 (26%), Positives = 58/126 (46%), Gaps = 8/126 (6%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN----NETKQMLEEQGYKNI 56
TL+N +TGA GIG +A++ + ++ G+ +E +E G + I
Sbjct: 2 TLSNKVAIVTGASRGIGAAIARRLAADGFAVA---VNYAGSAAAADELVAEIEAAGGRAI 58
Query: 57 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ DV++ V R+ D G + +LVNNAG+MP + + + +T N+
Sbjct: 59 -AVQADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATNLRG 117
Query: 117 HFWVLA 122
F VL
Sbjct: 118 AFVVLR 123
>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 = 64.2 bits (157), Expect = 2e-13
Identities = 27/119 (22%), Positives = 49/119 (41%), Gaps = 19/119 (15%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL------ 61
T A +GIG +A+ + +V + + + E+ +
Sbjct: 7 TAASSGIGLAIARALAREGARVAIC--ARNREN--------LERAASELRAGGAGVLAVV 56
Query: 62 -DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
D+++ E++ R+ +K G V ILVNNAG P P E + + FD+ +L+
Sbjct: 57 ADLTDPEDIDRLVEKAGDAFGRVDILVNNAGGPPPGPFAELTDEDWLEAFDLKLLSVIR 115
>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 = 64.3 bits (157), Expect = 2e-13
Identities = 24/109 (22%), Positives = 48/109 (44%), Gaps = 3/109 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA IG+ K + L+ DI+ + K+ L + +LD++++E
Sbjct: 7 ITGAAGLIGKAFCKALLSAGARLILADINAPALEQLKEELTNLYKNRVIALELDITSKES 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMP---CKPLNEQKPDVIRKTFDVNV 114
+ + + ++ G + IL+NNA P E + + +VN+
Sbjct: 67 IKELIESYLEKFGRIDILINNAYPSPKVWGSRFEEFPYEQWNEVLNVNL 115
>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 = 63.9 bits (156), Expect = 2e-13
Identities = 36/130 (27%), Positives = 57/130 (43%), Gaps = 16/130 (12%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLV---CWDIDEKGNNETKQMLE--EQGYKNIHTYKLDVS 64
TGA GIG EL +Q + V C + L + +H +LDV+
Sbjct: 4 TGASRGIGLELVRQLLARGNNTVIATC------RDPSAATELAALGASHSRLHILELDVT 57
Query: 65 NREEVLRVADKVRKEVGEVTI--LVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
+ E+ A+ V + +G+ + L+NNAGI+ P +E + + + F VNVL +
Sbjct: 58 D--EIAESAEAVAERLGDAGLDVLINNAGILHSYGPASEVDSEDLLEVFQVNVLGPLLLT 115
Query: 122 AHFWVSNLSG 131
F L G
Sbjct: 116 QAFLPLLLKG 125
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 63.9 bits (156), Expect = 3e-13
Identities = 30/114 (26%), Positives = 49/114 (42%), Gaps = 10/114 (8%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIG +A+ F + D E + ++ + N DVS+ + V
Sbjct: 21 TGGASGIGHAIAELFAAKGARVALLDRSE----DVAEVAAQLLGGNAKGLVCDVSDSQSV 76
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKP---LNEQKPDVIRKTFDVNVLAHFWV 120
V G + ILVN+AG+ P ++E+ D KT D+N+ F +
Sbjct: 77 EAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWD---KTIDINLKGSFLM 127
>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 = 63.6 bits (155), Expect = 3e-13
Identities = 38/132 (28%), Positives = 62/132 (46%), Gaps = 19/132 (14%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEE--QGYKNI 56
T N +TG +GIG LAK+F++ + V ++C G NE + L E I
Sbjct: 2 KTTGNTILITGGASGIGLALAKRFLELGNTV-IIC------GRNEER--LAEAKAENPEI 52
Query: 57 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN----EQKPDVIRKTFDV 112
HT DV++R+ + + ++KE + +L+NNAGI + + E D +
Sbjct: 53 HTEVCDVADRDSRRELVEWLKKEYPNLNVLINNAGIQ--RNEDLTGAEDLLDDAEQEIAT 110
Query: 113 NVLAHFWVLAHF 124
N+LA + A
Sbjct: 111 NLLAPIRLTALL 122
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 63.5 bits (155), Expect = 5e-13
Identities = 33/110 (30%), Positives = 52/110 (47%), Gaps = 4/110 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIH-TYKLDVSNREE 68
TGA GIG ELA++ L D++E E + E G + T DV++
Sbjct: 15 TGAARGIGAELARRLHARGAKLALVDLEEA---ELAALAAELGGDDRVLTVVADVTDLAA 71
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ A++ + G + ++V NAGI + + PD R+ DVN+L F
Sbjct: 72 MQAAAEEAVERFGGIDVVVANAGIASGGSVAQVDPDAFRRVIDVNLLGVF 121
>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 = 62.5 bits (152), Expect = 8e-13
Identities = 33/117 (28%), Positives = 50/117 (42%), Gaps = 5/117 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG +GIG A+ F +H +V DID+ L + +H DV+ +
Sbjct: 9 ITGGASGIGEATARLFAKHGARVVIADIDDDAGQAVAAELGDPDISFVHC---DVTVEAD 65
Query: 69 VLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
V D G + I+ NNAG++ PC + E + + DVNV F H
Sbjct: 66 VRAAVDTAVARFGRLDIMFNNAGVLGAPCYSILETSLEEFERVLDVNVYGAFLGTKH 122
>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 = 62.5 bits (152), Expect = 8e-13
Identities = 32/116 (27%), Positives = 56/116 (48%), Gaps = 10/116 (8%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+T A GIGR +A F + ++ DI NE K + E + I T LDV+++E+
Sbjct: 7 ITAAAQGIGRAIALAFAREGANVIATDI-----NEEK-LKELERGPGITTRVLDVTDKEQ 60
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
V +A KE G + +L N AG + + + + D ++NV + + ++
Sbjct: 61 VAALA----KEEGRIDVLFNCAGFVHHGSILDCEDDDWDFAMNLNVRSMYLMIKAV 112
>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 = 62.0 bits (151), Expect = 1e-12
Identities = 28/109 (25%), Positives = 51/109 (46%), Gaps = 14/109 (12%)
Query: 10 TGAGNGIGRELAKQFVQH---KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
TGA GIG+ + + H KV D ++ + G + +LDV++
Sbjct: 9 TGANRGIGKAFVESLLAHGAKKVYAAVRDPGS-----AAHLVAKYG-DKVVPLRLDVTDP 62
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNV 114
E + A + + +V +++NNAG++ P L E + +++ DVNV
Sbjct: 63 ESIKAAAAQAK----DVDVVINNAGVLKPATLLEEGALEALKQEMDVNV 107
>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 = 62.1 bits (151), Expect = 1e-12
Identities = 31/106 (29%), Positives = 50/106 (47%), Gaps = 8/106 (7%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIGR +A+ +Q T++ D+ +L E G + LDV++
Sbjct: 3 VTGAAQGIGRAVARHLLQAGATVIALDLPF-------VLLLEYGDP-LRLTPLDVADAAA 54
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V V ++ E G + LVN AG++ + + +TF VNV
Sbjct: 55 VREVCSRLLAEHGPIDALVNCAGVLRPGATDPLSTEDWEQTFAVNV 100
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 62.3 bits (152), Expect = 1e-12
Identities = 35/142 (24%), Positives = 60/142 (42%), Gaps = 22/142 (15%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L +TG +GIG + K+ + + +V DI + + ++N
Sbjct: 7 LQGKIIIVTGGSSGIGLAIVKELLANGANVVNADIHG---GDGQ-------HENYQFVPT 56
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPD--------VIRKTFDV 112
DVS+ EEV ++ ++ G + LVNNAGI +P ++E+ P K F++
Sbjct: 57 DVSSAEEVNHTVAEIIEKFGRIDGLVNNAGINIPRLLVDEKDPAGKYELNEAAFDKMFNI 116
Query: 113 NVLAHFWV---LAHFWVSNLSG 131
N F + +A V G
Sbjct: 117 NQKGVFLMSQAVARQMVKQHDG 138
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 62.1 bits (151), Expect = 1e-12
Identities = 31/106 (29%), Positives = 42/106 (39%), Gaps = 2/106 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG+GIGR AK F + +V D D + + G DV + E
Sbjct: 10 VTGAGSGIGRATAKLFAREGARVVVADRDAEAAERVAAAIAAGGRAFARQ--GDVGSAEA 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V + D V G + +LVNNAG + VNV
Sbjct: 68 VEALVDFVAARWGRLDVLVNNAGFGCGGTVVTTDEADWDAVMRVNV 113
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 62.1 bits (151), Expect = 1e-12
Identities = 29/107 (27%), Positives = 48/107 (44%), Gaps = 4/107 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +A+ F +H L+ DI + + L +G++ DV +
Sbjct: 11 ITGALQGIGEGIARVFARHGANLILLDISPEIE-KLADELCGRGHRCT-AVVADVRDPAS 68
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRK-TFDVNV 114
V + +++ G + ILVNNAG+ D R D+N+
Sbjct: 69 VAAAIKRAKEKEGRIDILVNNAGVCRLGSF-LDMSDEDRDFHIDINI 114
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 62.6 bits (153), Expect = 1e-12
Identities = 29/107 (27%), Positives = 49/107 (45%), Gaps = 1/107 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA G+GR A+ F + +V E+G + G + + DV++ E
Sbjct: 13 ITGASAGVGRATARAFARRGAKVVLLARGEEGLEALAAEIRAAGGEAL-AVVADVADAEA 71
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
V AD+ +E+G + VNNA + P + P+ R+ +V L
Sbjct: 72 VQAAADRAEEELGPIDTWVNNAMVTVFGPFEDVTPEEFRRVTEVTYL 118
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 61.6 bits (150), Expect = 2e-12
Identities = 34/112 (30%), Positives = 54/112 (48%), Gaps = 1/112 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG GIGR +A + V + E+ + +E G K + DVS+ EE
Sbjct: 12 ITGAGRGIGRAVAIALAKEGVNVGLLARTEENLKAVAEEVEAYGVK-VVIATADVSDYEE 70
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V ++++ E+G + IL+NNAGI E P K VN++ ++
Sbjct: 71 VTAAIEQLKNELGSIDILINNAGISKFGKFLELDPAEWEKIIQVNLMGVYYA 122
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 61.7 bits (150), Expect = 2e-12
Identities = 35/124 (28%), Positives = 58/124 (46%), Gaps = 9/124 (7%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYK 60
+L +TG+ GIG LA ++ ++ DI + L ++G K H
Sbjct: 6 SLAGKNILITGSAQGIGFLLATGLAEYGAEIIINDITAERAELAVAKLRQEGIK-AHAAP 64
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNE----QKPDVIRKTFDVNVLA 116
+V++++EV + + K++G + +L+NNAGI P E + DVI VN A
Sbjct: 65 FNVTHKQEVEAAIEHIEKDIGPIDVLINNAGIQRRHPFTEFPEQEWNDVI----AVNQTA 120
Query: 117 HFWV 120
F V
Sbjct: 121 VFLV 124
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 61.4 bits (149), Expect = 2e-12
Identities = 35/110 (31%), Positives = 60/110 (54%), Gaps = 2/110 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG GIG+E+A F ++V DI+ N +++ G + + D+++ +E
Sbjct: 16 ITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAF-ACRCDITSEQE 74
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ +AD ++G+V ILVNNAG KP + D R +++NV + F
Sbjct: 75 LSALADFALSKLGKVDILVNNAGGGGPKPFDMPMADFRR-AYELNVFSFF 123
>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 = 60.9 bits (148), Expect = 3e-12
Identities = 34/109 (31%), Positives = 52/109 (47%), Gaps = 1/109 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIGR A F + +V + +E + + E G + I DV++ +
Sbjct: 5 ITGASSGIGRATALAFAERGAKVVLAARSAEALHELAREVRELGGEAI-AVVADVADAAQ 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 117
V R AD + G + VNNAG+ + P+ R+ FDVN L H
Sbjct: 64 VERAADTAVERFGRIDTWVNNAGVAVFGRFEDVTPEEFRRVFDVNYLGH 112
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 61.0 bits (148), Expect = 4e-12
Identities = 38/120 (31%), Positives = 56/120 (46%), Gaps = 10/120 (8%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDI-DEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
+TG GIG + + F +H KV +V D+ D+ G N + E H DV+
Sbjct: 23 VTGGATGIGESIVRLFHKHGAKVCIV--DLQDDLGQNVCDSLGGEPNVCFFHC---DVTV 77
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIM--PCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
++V R D + G + I+VNNAG+ PC + + K FDVNV F + H
Sbjct: 78 EDDVSRAVDFTVDKFGTLDIMVNNAGLTGPPCPDIRNVELSEFEKVFDVNVKGVFLGMKH 137
>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 = 60.4 bits (147), Expect = 4e-12
Identities = 28/111 (25%), Positives = 50/111 (45%), Gaps = 2/111 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TG GIG+ +A + + +V + + E +EE G K + + DVS ++
Sbjct: 4 TGGSRGIGKAIALRLAERGADVVINYRKSKDAAAEVAAEIEELGGKAV-VVRADVSQPQD 62
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
V + V++ G + +LV+NA +PL+E P + N+ A
Sbjct: 63 VEEMFAAVKERFGRLDVLVSNAAAGAFRPLSELTPAHWDAKMNTNLKALVH 113
>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 = 59.9 bits (146), Expect = 5e-12
Identities = 38/121 (31%), Positives = 57/121 (47%), Gaps = 11/121 (9%)
Query: 10 TGAGNGIG----RELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
TGA GIG R+LAK V L D+ E+G ++ L +G ++ ++LDV++
Sbjct: 6 TGANRGIGFEIVRQLAKSG-PGTVILTARDV-ERGQAAVEK-LRAEG-LSVRFHQLDVTD 61
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPD--VIRKTFDVNVLAHFWVLAH 123
+ AD V ++ G + ILVNNAGI K ++ P R+T N V
Sbjct: 62 DASIEAAADFVEEKYGGLDILVNNAGIAF-KGFDDSTPTREQARETMKTNFFGTVDVTQA 120
Query: 124 F 124
Sbjct: 121 L 121
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 60.4 bits (146), Expect = 6e-12
Identities = 33/106 (31%), Positives = 57/106 (53%), Gaps = 1/106 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG +GIG +F + +V D+D+ G + L +G+ ++H DV +REE
Sbjct: 11 ITGGASGIGLATGTEFARRGARVVLGDVDKPGLRQAVNHLRAEGF-DVHGVMCDVRHREE 69
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V +AD+ + +G V ++ +NAGI+ P+ E D R DV++
Sbjct: 70 VTHLADEAFRLLGHVDVVFSNAGIVVGGPIVEMTHDDWRWVIDVDL 115
>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 = 59.9 bits (146), Expect = 7e-12
Identities = 28/112 (25%), Positives = 55/112 (49%), Gaps = 9/112 (8%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIG+ A++ + ++ ++ + + +EE+ T D S +++
Sbjct: 7 TGATDGIGKAYAEELAKRGFNVILISRTQEKLDAVAKEIEEKYGVETKTIAADFSAGDDI 66
Query: 70 LRVADKVRKEVG--EVTILVNNAGI---MPCKPLNEQKPDVIRKTFDVNVLA 116
+++ KE+ ++ ILVNN GI +P L D ++ +VNV+A
Sbjct: 67 Y---ERIEKELEGLDIGILVNNVGISHSIPEYFLETP-EDELQDIINVNVMA 114
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 59.9 bits (146), Expect = 7e-12
Identities = 27/107 (25%), Positives = 44/107 (41%), Gaps = 8/107 (7%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TG +G GR LA+ + H+V + + + E LDV++ +
Sbjct: 10 TGVSSGFGRALAQAALAAGHRV------VGTVRSEAARADFEALHPDRALARLLDVTDFD 63
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+ V G + +LVNNAG + E +R+ F+VNV
Sbjct: 64 AIDAVVADAEATFGPIDVLVNNAGYGHEGAIEESPLAEMRRQFEVNV 110
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 59.4 bits (144), Expect = 1e-11
Identities = 36/117 (30%), Positives = 51/117 (43%), Gaps = 13/117 (11%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDI------DEKGNNETKQMLEEQGYKNIHTYKLD 62
+TGA GIGR A W + D ET + G + D
Sbjct: 7 ITGASRGIGRATAVLAAARG-----WSVGINYARDAAAAEETADAVRAAGGRAC-VVAGD 60
Query: 63 VSNREEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 118
V+N +V+ + D V+ G + LVNNAGI+ P PL + +R+ FD NVL +
Sbjct: 61 VANEADVIAMFDAVQSAFGRLDALVNNAGIVAPSMPLADMDAARLRRMFDTNVLGAY 117
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 59.4 bits (144), Expect = 1e-11
Identities = 31/112 (27%), Positives = 50/112 (44%), Gaps = 4/112 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKN--IHTYKLDVSNR 66
+TGA GIG +A++ + ++ GN+ K EE G+ + +LDV++
Sbjct: 7 VTGAKRGIGSAIARELLNDGYRVIA--TYFSGNDCAKDWFEEYGFTEDQVRLKELDVTDT 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
EE ++ +E G V ILVNNAGI + N+ + F
Sbjct: 65 EECAEALAEIEEEEGPVDILVNNAGITRDSVFKRMSHQEWNDVINTNLNSVF 116
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 59.3 bits (144), Expect = 2e-11
Identities = 25/84 (29%), Positives = 41/84 (48%), Gaps = 1/84 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +G G A+ + LV D+ + + L QG + + + DVS+ +
Sbjct: 11 ITGAASGFGLAFARIGAALGMKLVLADVQQDALDRAVAELRAQGAE-VLGVRTDVSDAAQ 69
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
V +AD + G V +L NNAG+
Sbjct: 70 VEALADAALERFGAVHLLFNNAGV 93
>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 = 58.5 bits (142), Expect = 2e-11
Identities = 25/111 (22%), Positives = 44/111 (39%), Gaps = 5/111 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG E+A+ + + + + ++ D + E+
Sbjct: 5 VTGASRGIGIEIARALARDGYRVSLGLRNPEDLAALS--ASGG---DVEAVPYDARDPED 59
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
+ D +R G + +LV+NAGI L E + F +NV+A
Sbjct: 60 ARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSINVIAPAE 110
>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 = 58.8 bits (142), Expect = 2e-11
Identities = 26/113 (23%), Positives = 50/113 (44%), Gaps = 4/113 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG+ GIGR A+ +V+ + DI+ + T + LDV+++
Sbjct: 8 ITGSARGIGRAFAQAYVREGARVAIADINLEAARATAAEIGPAAC----AISLDVTDQAS 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
+ R + G + ILVNNA + P+ + + + F +NV +++
Sbjct: 64 IDRCVAALVDRWGSIDILVNNAALFDLAPIVDITRESYDRLFAINVSGTLFMM 116
>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 = 58.0 bits (140), Expect = 3e-11
Identities = 26/111 (23%), Positives = 52/111 (46%), Gaps = 2/111 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG GIG+ +A + ++V D+ +G +++ G + + +V++ ++
Sbjct: 4 VTGGAAGIGKAIAGTLAKAGASVVIADLKSEGAEAVAAAIQQAGGQ-AIGLECNVTSEQD 62
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLN-EQKPDVIRKTFDVNVLAHF 118
+ V + G +TILVNNAG KP + + F +N+ + F
Sbjct: 63 LEAVVKATVSQFGGITILVNNAGGGGPKPFDMPMTEEDFEWAFKLNLFSAF 113
>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 = 57.4 bits (139), Expect = 5e-11
Identities = 27/110 (24%), Positives = 50/110 (45%), Gaps = 4/110 (3%)
Query: 11 GAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
GAG+G+G +A++F V L + ++ + G + D + +E
Sbjct: 6 GAGDGLGAAIARRFAAEGFSVALAARREAKLEALLV-DIIRDAG-GSAKAVPTDARDEDE 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
V+ + D + +E+G + +LV NAG P+ E P V K +++ F
Sbjct: 64 VIALFDLIEEEIGPLEVLVYNAGANVWFPILETTPRVFEKVWEMAAFGGF 113
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 57.5 bits (139), Expect = 6e-11
Identities = 33/108 (30%), Positives = 53/108 (49%), Gaps = 7/108 (6%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG +GIGR LA F W K E + L G+ +LDV++
Sbjct: 6 ITGCSSGIGRALADAF--KAAGYEVWATARK--AEDVEALAAAGFT---AVQLDVNDGAA 58
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ R+A+++ E G + +L+NNAG PL + + +R+ F+ NV A
Sbjct: 59 LARLAEELEAEHGGLDVLINNAGYGAMGPLLDGGVEAMRRQFETNVFA 106
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 57.4 bits (139), Expect = 6e-11
Identities = 26/107 (24%), Positives = 43/107 (40%), Gaps = 3/107 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGY-KNIHTYKLDVSNRE 67
+TGA GIG +A+ F + + D+D + + DV++
Sbjct: 12 VTGAAQGIGAAIARAFAREGAAVALADLDAALAERAAAAIARDVAGARVLAVPADVTDAA 71
Query: 68 EVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVN 113
V + G + +LVNNAGI + PL + R+ F V+
Sbjct: 72 SVAAAVAAAEEAFGPLDVLVNNAGINVFADPL-AMTDEDWRRCFAVD 117
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 57.4 bits (139), Expect = 7e-11
Identities = 34/112 (30%), Positives = 51/112 (45%), Gaps = 8/112 (7%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN----NETKQMLEEQGYKNIHTYKLDVS 64
+TG+G GIGR +A + + +V ++ K NET +M++E G + I DVS
Sbjct: 11 VTGSGRGIGRAIAVRLAKEGSLVV---VNAKKRAEEMNETLKMVKENGGEGI-GVLADVS 66
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
RE +A G ILVNNAG+ P +I K + +
Sbjct: 67 TREGCETLAKATIDRYGVADILVNNAGLGLFSPFLNVDDKLIDKHISTDFKS 118
>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 = 57.2 bits (138), Expect = 8e-11
Identities = 34/119 (28%), Positives = 61/119 (51%), Gaps = 5/119 (4%)
Query: 7 FQLTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVS 64
F +TGA +GIG+ A + V +VC + + K++ E G +NI + +D+S
Sbjct: 4 FLITGANSGIGKAAALAIAKRGGTVHMVCRN-QTRAEEARKEIETESGNQNIFLHIVDMS 62
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
+ ++V ++ ++E ++ +L+NNAG M K E D + K F N L + + H
Sbjct: 63 DPKQVWEFVEEFKEEGKKLHVLINNAGCMVNK--RELTEDGLEKNFATNTLGTYILTTH 119
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 56.7 bits (137), Expect = 1e-10
Identities = 32/112 (28%), Positives = 51/112 (45%), Gaps = 1/112 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG+ GIG LA+ Q ++ D + L+ QG + H DV++ +
Sbjct: 15 VTGSSQGIGYALAEGLAQAGAEVILNGRDPAKLAAAAESLKGQG-LSAHALAFDVTDHDA 73
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V D E+G + ILVNNAG+ PL + D + N+ + F+V
Sbjct: 74 VRAAIDAFEAEIGPIDILVNNAGMQFRTPLEDFPADAFERLLRTNISSVFYV 125
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 56.8 bits (137), Expect = 1e-10
Identities = 31/90 (34%), Positives = 49/90 (54%), Gaps = 1/90 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIG+E+A + + + D+++ G N + + G K I +DV+N +
Sbjct: 12 VTGAASGIGKEIALELARAGAAVAIADLNQDGANAVADEINKAGGKAIG-VAMDVTNEDA 70
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPL 98
V DKV + G V ILV+NAGI P+
Sbjct: 71 VNAGIDKVAERFGSVDILVSNAGIQIVNPI 100
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 56.7 bits (137), Expect = 1e-10
Identities = 30/107 (28%), Positives = 55/107 (51%), Gaps = 2/107 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDI-DEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TGAG+GIG+ +A Q + +D+ + G ET + +E G + I DV+++
Sbjct: 13 VTGAGSGIGQRIAIGLAQAGADVALFDLRTDDGLAETAEHIEAAGRRAIQ-IAADVTSKA 71
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
++ + E+G +T+ VN AGI P E + + + D+N+
Sbjct: 72 DLRAAVARTEAELGALTLAVNAAGIANANPAEEMEEEQWQTVMDINL 118
>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 = 56.5 bits (137), Expect = 1e-10
Identities = 30/112 (26%), Positives = 52/112 (46%), Gaps = 9/112 (8%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDID--EKGNNETKQMLEEQGYKNIHTYKLDVSN 65
TGA +GIG A++F + K+ L + ++ +E + + +LDVS+
Sbjct: 6 TGASSGIGEATARRFAKAGAKLILTGRRAERLQELADELGAKFPVK----VLPLQLDVSD 61
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLA 116
RE + + + +E ++ ILVNNAG+ + P E + D NV
Sbjct: 62 RESIEAALENLPEEFRDIDILVNNAGLALGLDPAQEADLEDWETMIDTNVKG 113
>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 = 56.2 bits (136), Expect = 2e-10
Identities = 35/106 (33%), Positives = 55/106 (51%), Gaps = 5/106 (4%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGAG+G G +A++F Q +V DI+ G +++ + G I + DV+ R +V
Sbjct: 11 TGAGSGFGEGIARRFAQEGARVVIADINADG---AERVAADIGEAAIAI-QADVTKRADV 66
Query: 70 LRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNV 114
+ + + G + ILVNNAGI KP+ E + + F VNV
Sbjct: 67 EAMVEAALSKFGRLDILVNNAGITHRNKPMLEVDEEEFDRVFAVNV 112
>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 = 55.9 bits (135), Expect = 2e-10
Identities = 31/112 (27%), Positives = 56/112 (50%), Gaps = 5/112 (4%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA GIG+E A++ + +V + C D+ K ++ + + LD+++
Sbjct: 6 ITGANTGIGKETARELARRGARVIMACRDM-AKCEEAAAEIRRDTLNHEVIVRHLDLASL 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ + A + E + +L+NNAG+M C P ++ + D F VN L HF
Sbjct: 65 KSIRAFAAEFLAEEDRLDVLINNAGVMRC-PYSKTE-DGFEMQFGVNHLGHF 114
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 55.9 bits (135), Expect = 2e-10
Identities = 29/86 (33%), Positives = 42/86 (48%), Gaps = 6/86 (6%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G+GIG A++ T+V DID + K +E G + T DV++ +
Sbjct: 12 ITGGGSGIGLATARRLAAEGATVVVGDIDPEAG---KAAADEVGGLFVPT---DVTDEDA 65
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMP 94
V + D + G V I NNAGI P
Sbjct: 66 VNALFDTAAETYGSVDIAFNNAGISP 91
>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 = 55.7 bits (134), Expect = 2e-10
Identities = 31/113 (27%), Positives = 58/113 (51%), Gaps = 3/113 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN--R 66
+TGA +GIGRE A + ++ T++ +E+ + + E+G + + LD+
Sbjct: 9 VTGASDGIGREAALTYARYGATVILLGRNEEKLRQVADHINEEGGRQPQWFILDLLTCTS 68
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 118
E ++A ++ + +++NAG++ PL+EQ P V + VNV A F
Sbjct: 69 ENCQQLAQRIAVNYPRLDGVLHNAGLLGDVCPLSEQNPQVWQDVXQVNVNATF 121
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 55.1 bits (133), Expect = 4e-10
Identities = 30/107 (28%), Positives = 56/107 (52%), Gaps = 6/107 (5%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNN--ETKQMLEEQGYKNIHTYKLDVSNRE 67
TG G+G+ A + ++ I G N ET++++E++G + + ++D++ E
Sbjct: 21 TGGNTGLGQGYAVALAKAGADII---ITTHGTNWDETRRLIEKEG-RKVTFVQVDLTKPE 76
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+V + +E G++ ILVNNAG + PL E K + D+N+
Sbjct: 77 SAEKVVKEALEEFGKIDILVNNAGTIRRAPLLEYKDEDWNAVMDINL 123
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 55.1 bits (133), Expect = 5e-10
Identities = 27/116 (23%), Positives = 53/116 (45%), Gaps = 14/116 (12%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR-- 66
+TG G+G +A Q ++ ++ + N+ L EQ N+ + LD+ +
Sbjct: 6 ITGTSQGLGEAIANQLLEKGTHVISI---SRTENKELTKLAEQYNSNLTFHSLDLQDVHE 62
Query: 67 -----EEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 116
E+L + V + L+NNAG++ P KP+ + + + + +N+LA
Sbjct: 63 LETNFNEILSSIQE--DNVSSIH-LINNAGMVAPIKPIEKAESEELITNVHLNLLA 115
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 54.7 bits (132), Expect = 6e-10
Identities = 24/84 (28%), Positives = 36/84 (42%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIGR A + L D D G +T G LD+S+ +
Sbjct: 5 VTGAASGIGRATALRLAAQGAELFLTDRDADGLAQTVADARALGGTVPEHRALDISDYDA 64
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
V A + G + +++N AGI
Sbjct: 65 VAAFAADIHAAHGSMDVVMNIAGI 88
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 55.3 bits (134), Expect = 6e-10
Identities = 26/85 (30%), Positives = 39/85 (45%), Gaps = 5/85 (5%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIGR A + + V LV + + +E + +G H Y D+++
Sbjct: 376 ITGASSGIGRATAIKVAEAGATVFLVARNGEAL--DELVAEIRAKGGT-AHAYTCDLTDS 432
Query: 67 EEVLRVADKVRKEVGEVTILVNNAG 91
V + E G V LVNNAG
Sbjct: 433 AAVDHTVKDILAEHGHVDYLVNNAG 457
>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 = 54.4 bits (131), Expect = 6e-10
Identities = 27/87 (31%), Positives = 43/87 (49%), Gaps = 8/87 (9%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYK--NIHTYKLDVSN 65
TG GIG + ++ + ++V C +E+ + L+EQG + + DVS+
Sbjct: 6 TGGMGGIGTAICQRLAKDGYRVAANCGPNEER----AEAWLQEQGALGFDFRVVEGDVSS 61
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGI 92
E KV E+G + +LVNNAGI
Sbjct: 62 FESCKAAVAKVEAELGPIDVLVNNAGI 88
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 54.5 bits (132), Expect = 6e-10
Identities = 32/112 (28%), Positives = 56/112 (50%), Gaps = 3/112 (2%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN--RE 67
TGAG+GIGRE A + +H T++ E+ +E G LD+ +
Sbjct: 18 TGAGDGIGREAALTYARHGATVILLGRTEEKLEAVYDEIEAAGGPQPAIIPLDLLTATPQ 77
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 118
++AD + ++ G + +++NAG++ P+ +Q P+V + VNV A F
Sbjct: 78 NYQQLADTIEEQFGRLDGVLHNAGLLGELGPMEQQDPEVWQDVMQVNVNATF 129
>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 = 54.6 bits (132), Expect = 7e-10
Identities = 36/110 (32%), Positives = 54/110 (49%), Gaps = 9/110 (8%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TG +G G LAK+ V C + G E +++ + + T +LDV+
Sbjct: 5 ITGCDSGFGNLLAKKLDSLGFTVLAGCLTKNGPGAKELRRVCSD----RLRTLQLDVTKP 60
Query: 67 EEVLRVADKVRKEVGEVTI--LVNNAGIMPCKPLNEQKP-DVIRKTFDVN 113
E++ R A V++ VGE + LVNNAGI+ E P D RK +VN
Sbjct: 61 EQIKRAAQWVKEHVGEKGLWGLVNNAGILGFGGDEELLPMDDYRKCMEVN 110
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 54.2 bits (131), Expect = 8e-10
Identities = 30/117 (25%), Positives = 50/117 (42%), Gaps = 17/117 (14%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIG A+ F+ + D +K + N H +LD+S+
Sbjct: 10 ITGAASGIGLAQARAFLAQGAQVYGVDKQDKPDLS----------GNFHFLQLDLSDD-- 57
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
+ + V V IL N AGI+ KPL + + + FD N+ + F + +
Sbjct: 58 ----LEPLFDWVPSVDILCNTAGILDDYKPLLDTSLEEWQHIFDTNLTSTFLLTRAY 110
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 54.0 bits (130), Expect = 1e-09
Identities = 31/106 (29%), Positives = 43/106 (40%), Gaps = 2/106 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG GIGR A F + +V D D G ET ++ E G + + DV+ EV
Sbjct: 13 TGGAAGIGRATALAFAREGAKVVVADRDAAGGEETVALIREAGGEALF-VACDVTRDAEV 71
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFDVNV 114
+ ++ G + NNAGI + L E VNV
Sbjct: 72 KALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEGSEAEFDAIMGVNV 117
>gnl|CDD|180766 PRK06940, PRK06940, short chain dehydrogenase; Provisional.
Length = 275
Score = 53.9 bits (130), Expect = 1e-09
Identities = 30/86 (34%), Positives = 50/86 (58%), Gaps = 4/86 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+ GAG GIG+ +A++ K L+ D +E+ + L E G+ ++ T ++DVS+RE
Sbjct: 7 VIGAG-GIGQAIARRVGAGKKVLLA-DYNEENLEAAAKTLREAGF-DVSTQEVDVSSRES 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMP 94
V +A + +G VT LV+ AG+ P
Sbjct: 64 VKALAATAQ-TLGPVTGLVHTAGVSP 88
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 53.9 bits (130), Expect = 1e-09
Identities = 23/110 (20%), Positives = 47/110 (42%), Gaps = 1/110 (0%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQ-GYKNIHTYKLDVSNREE 68
G G +G L + + DI+ + Q + + G + + D ++ +
Sbjct: 8 IGGGQTLGAFLCHGLAEEGYRVAVADINSEKAANVAQEINAEYGEGMAYGFGADATSEQS 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
VL ++ V + G V +LV NAGI + + + ++ VN++ +F
Sbjct: 68 VLALSRGVDEIFGRVDLLVYNAGIAKAAFITDFQLGDFDRSLQVNLVGYF 117
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 53.9 bits (130), Expect = 1e-09
Identities = 27/107 (25%), Positives = 54/107 (50%), Gaps = 1/107 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +G+GR +A ++ + L D++E+G ET ++L E G + DV + +
Sbjct: 5 ITGAASGLGRAIALRWAREGWRLALADVNEEGGEETLKLLREAGGDG-FYQRCDVRDYSQ 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
+ +A ++ G + ++VNNAG+ E + +N++
Sbjct: 64 LTALAQACEEKWGGIDVIVNNAGVASGGFFEELSLEDWDWQIAINLM 110
>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 = 53.3 bits (128), Expect = 1e-09
Identities = 29/113 (25%), Positives = 48/113 (42%), Gaps = 8/113 (7%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA GIG A+ ++V + D ++ + + DV +
Sbjct: 5 VTGASRGIGEATARLLHAEGYRVGICARD-----EARLAAAAAQE-LEGVLGLAGDVRDE 58
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
+V R D + + G + LVNNAG+ KP+ E P+ R D N+ F+
Sbjct: 59 ADVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEELTPEEWRLVLDTNLTGAFY 111
>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 = 53.7 bits (129), Expect = 2e-09
Identities = 32/117 (27%), Positives = 51/117 (43%), Gaps = 2/117 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQ-MLEEQGYKNIHTYKLDVSNRE 67
+TG G+G+G A + + L D++E+G K +LE + K DVS+
Sbjct: 8 ITGGGSGLGLATAVRLAKEGAKLSLVDLNEEGLEAAKAALLEIAPDAEVLLIKADVSDEA 67
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQ-KPDVIRKTFDVNVLAHFWVLAH 123
+V D ++ G + NNAGI + L E D K +N+ F+ L
Sbjct: 68 QVEAYVDATVEQFGRIDGFFNNAGIEGKQNLTEDFGADEFDKVVSINLRGVFYGLEK 124
>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 = 53.7 bits (129), Expect = 2e-09
Identities = 27/111 (24%), Positives = 49/111 (44%), Gaps = 1/111 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG GIGR + + FV++ +V E + L G + DV+ E+
Sbjct: 14 VTGGSRGIGRGIVRAFVENGAKVVFCARGEAAGQALESELNRAGPGSCKFVPCDVTKEED 73
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHF 118
+ + + G + LVNNAG P + +E R ++N++++F
Sbjct: 74 IKTLISVTVERFGRIDCLVNNAGWHPPHQTTDETSAQEFRDLLNLNLISYF 124
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 53.1 bits (128), Expect = 2e-09
Identities = 29/114 (25%), Positives = 43/114 (37%), Gaps = 8/114 (7%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA G GR + ++ +V D T L E+ + LDV++R
Sbjct: 8 ITGASRGFGRAWTEAALERGDRVVATARDT------ATLADLAEKYGDRLLPLALDVTDR 61
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V + + G + I+VNNAG + E R D N WV
Sbjct: 62 AAVFAAVETAVEHFGRLDIVVNNAGYGLFGMIEEVTESEARAQIDTNFFGALWV 115
>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 = 52.8 bits (127), Expect = 2e-09
Identities = 24/99 (24%), Positives = 48/99 (48%), Gaps = 4/99 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA G+G +A+ F + +V ++ + E+ + + + + + DV +R++
Sbjct: 5 VTGASRGLGAAIARSFAREGARVV---VNYYRSTESAEAVAAEAGERAIAIQADVRDRDQ 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVI 106
V + ++ + G V +VNNA I P P + D I
Sbjct: 62 VQAMIEEAKNHFGPVDTIVNNALIDFPFDPDQRKTFDTI 100
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 53.0 bits (128), Expect = 3e-09
Identities = 29/108 (26%), Positives = 50/108 (46%), Gaps = 11/108 (10%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIG+ A++ + V +D+ + L G +H LDV++
Sbjct: 8 VTGASSGIGKATARRLAAQGYTVYGAARRVDKM------EDLASLG---VHPLSLDVTDE 58
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+ D + E G + +LVNNAG + + D R+ F+VN+
Sbjct: 59 ASIKAAVDTIIAEEGRIDVLVNNAGYGSYGAIEDVPIDEARRQFEVNL 106
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 52.6 bits (127), Expect = 3e-09
Identities = 30/111 (27%), Positives = 50/111 (45%), Gaps = 5/111 (4%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TG G+G ++A+ + +V L +E E LE G + DV++
Sbjct: 18 TGGSRGLGLQIAEALGEAGARVVLSARKAEEL--EEAAAHLEALG-IDALWIAADVADEA 74
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
++ R+A++ + G V ILVNNAG P + + K ++NV F
Sbjct: 75 DIERLAEETLERFGHVDILVNNAGATWGAPAEDHPVEAWDKVMNLNVRGLF 125
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 52.4 bits (126), Expect = 3e-09
Identities = 34/112 (30%), Positives = 52/112 (46%), Gaps = 3/112 (2%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA GIG +A++F+ V +V D D ++ EE + +H DVS+
Sbjct: 14 ITGASKGIGLAIAREFLGLGADVLIVARDADALAQARD-ELAEEFPEREVHGLAADVSDD 72
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
E+ + D V + ILVNNAG K + D R F+ N+ + F
Sbjct: 73 EDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAF 124
>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 = 52.4 bits (126), Expect = 4e-09
Identities = 31/110 (28%), Positives = 49/110 (44%), Gaps = 2/110 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGY--KNIHTYKLDVSNR 66
+TG+ +GIG A F + L D + ET+Q + G K I D++
Sbjct: 8 ITGSSSGIGAGTAILFARLGARLALTGRDAERLEETRQSCLQAGVSEKKILLVVADLTEE 67
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
E R+ + G + ILVNNAGI+ +Q + K ++N+ A
Sbjct: 68 EGQDRIISTTLAKFGRLDILVNNAGILAKGGGEDQDIEEYDKVMNLNLRA 117
>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 = 51.9 bits (125), Expect = 5e-09
Identities = 26/116 (22%), Positives = 45/116 (38%), Gaps = 2/116 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TGA IGR +A+ +V ++ E K L + + D+S+
Sbjct: 6 TGAAKRIGRAIAEALAAEGYRVVVHYNRSEAEAQRLKDELNALRNSAV-LVQADLSDFAA 64
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
+ + G +LVNNA PL + D + F +N+ A + ++ F
Sbjct: 65 CADLVAAAFRAFGRCDVLVNNASAFYPTPLGQGSEDAWAELFGINLKAPYLLIQAF 120
>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 = 51.9 bits (125), Expect = 5e-09
Identities = 29/112 (25%), Positives = 50/112 (44%), Gaps = 11/112 (9%)
Query: 10 TGAGNGIGRELAKQFVQ--HKVTLVCWDID--EKGNNETKQMLEEQGYKNIHTYKLDVSN 65
TGA +GIGR LA++F + + V L D ++ E + LDV++
Sbjct: 4 TGASSGIGRALAREFAKAGYNVALAARRTDRLDELKAELLNP---NPSVEVEI--LDVTD 58
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLA 116
E V ++ E+G + +++ NAG+ + R+T D N+L
Sbjct: 59 EERNQLVIAELEAELGGLDLVIINAGVGKGTSLGDLSFKAF-RETIDTNLLG 109
>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 = 52.1 bits (125), Expect = 5e-09
Identities = 31/112 (27%), Positives = 48/112 (42%), Gaps = 9/112 (8%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG GIGR K + +V + + ++ E I +D+S+ +
Sbjct: 12 VTGAGKGIGRATVKALAKAGARVVAV---SRTQADLDSLVREC--PGIEPVCVDLSDWDA 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V G V +LVNNA + +P E + ++FDVNV A V
Sbjct: 67 TEEALGSV----GPVDLLVNNAAVAILQPFLEVTKEAFDRSFDVNVRAVIHV 114
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 52.0 bits (125), Expect = 6e-09
Identities = 28/110 (25%), Positives = 51/110 (46%), Gaps = 6/110 (5%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDI-DEKGNNETKQML-EEQGYKNIHTYKLDVS 64
+TGA G+GR +A++ + KV L DI D G + + G DV+
Sbjct: 4 ITGAAGGLGRAIARRMAEQGAKVFLT--DINDAAGLDAFAAEINAAHGEGVAFAAVQDVT 61
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+ + + + +G +++LVNNAG+ + + + D R+ +NV
Sbjct: 62 DEAQWQALLAQAADAMGGLSVLVNNAGVGSFGAIEQIELDEWRRVMAINV 111
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 52.0 bits (125), Expect = 6e-09
Identities = 31/111 (27%), Positives = 57/111 (51%), Gaps = 2/111 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TG G+GR +A +F + K +V + DE+ N+ + +++ G + I K DV+
Sbjct: 12 ITGGSTGLGRAMAVRFGKEKAKVVINYRSDEEEANDVAEEIKKAGGEAI-AVKGDVTVES 70
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+V+ + KE G + +++NNAGI P +E + K + N+ F
Sbjct: 71 DVVNLIQTAVKEFGTLDVMINNAGIENAVPSHEMSLEDWNKVINTNLTGAF 121
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 51.7 bits (124), Expect = 7e-09
Identities = 31/108 (28%), Positives = 48/108 (44%), Gaps = 4/108 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG+ A+ + ++V DI+ +G + + G I ++DVS+ +
Sbjct: 11 VTGAAGGIGQAYAEALAREGASVVVADINAEGAERVAKQIVADGGTAIAV-QVDVSDPDS 69
Query: 69 VLRVADKVRKEVGEVTILVNNAGI---MPCKPLNEQKPDVIRKTFDVN 113
+AD G + LVNNA I M L D +K VN
Sbjct: 70 AKAMADATVSAFGGIDYLVNNAAIYGGMKLDLLITVPWDYYKKFMSVN 117
>gnl|CDD|187629 cd05371, HSD10-like_SDR_c, 17hydroxysteroid dehydrogenase type 10
(HSD10)-like, classical (c) SDRs. HSD10, also known as
amyloid-peptide-binding alcohol dehydrogenase (ABAD),
was previously identified as a L-3-hydroxyacyl-CoA
dehydrogenase, HADH2. In fatty acid metabolism, HADH2
catalyzes the third step of beta-oxidation, the
conversion of a hydroxyl to a keto group in the
NAD-dependent oxidation of L-3-hydroxyacyl CoA. In
addition to alcohol dehydrogenase and HADH2 activites,
HSD10 has steroid dehydrogenase activity. Although the
mechanism is unclear, HSD10 is implicated in the
formation of amyloid beta-petide in the brain (which is
linked to the development of Alzheimer's disease).
Although HSD10 is normally concentrated in the
mitochondria, in the presence of amyloid beta-peptide it
translocates into the plasma membrane, where it's action
may generate cytotoxic aldehydes and may lower estrogen
levels through its use of 17-beta-estradiol as a
substrate. HSD10 is a member of the SRD family, but
differs from other SDRs by the presence of two
insertions of unknown function. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 252
Score = 51.5 bits (124), Expect = 8e-09
Identities = 25/119 (21%), Positives = 53/119 (44%), Gaps = 13/119 (10%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI-DEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TG +G+G ++ + +V D+ + G K L + +DV++ ++
Sbjct: 8 TGGASGLGLATVERLLAQGAKVVILDLPNSPGETVAK--LGDNCRF----VPVDVTSEKD 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQK-----PDVIRKTFDVNVLAHFWVL 121
V + + G + I+VN AGI K N++ ++ ++ +VN++ F V+
Sbjct: 62 VKAALALAKAKFGRLDIVVNCAGIAVAAKTYNKKGQQPHSLELFQRVINVNLIGTFNVI 120
>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 = 51.4 bits (124), Expect = 8e-09
Identities = 23/82 (28%), Positives = 37/82 (45%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG G GIG+ +AK F + ++ + + + H + DV + E V
Sbjct: 9 TGGGTGIGKAIAKAFAELGASVAIAGRKPEVLEAAAEEISSATGGRAHPIQCDVRDPEAV 68
Query: 70 LRVADKVRKEVGEVTILVNNAG 91
D+ KE G++ IL+NNA
Sbjct: 69 EAAVDETLKEFGKIDILINNAA 90
>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 = 51.0 bits (122), Expect = 1e-08
Identities = 33/111 (29%), Positives = 53/111 (47%), Gaps = 9/111 (8%)
Query: 9 LTGAGNGIG----RELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVS 64
+TGA +GIG R LA + V + +D LE +G K +LDV+
Sbjct: 8 VTGASSGIGEATARALAAEGA--AVAIAARRVDRL--EALADELEAEGGK-ALVLELDVT 62
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
+ ++V ++ + +G + ILVNNAGIM P+ + + D N+L
Sbjct: 63 DEQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLL 113
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 50.7 bits (122), Expect = 1e-08
Identities = 26/107 (24%), Positives = 48/107 (44%), Gaps = 2/107 (1%)
Query: 11 GAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVL 70
G G G+GR LA + + +V + +E +++ G + + D+++ ++
Sbjct: 12 GVGPGLGRTLAVRAARAGADVVLAARTAERLDEVAAEIDDLGRRALAV-PTDITDEDQCA 70
Query: 71 RVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLA 116
+ + G V LVNNA +P KPL + R ++NVL
Sbjct: 71 NLVALALERFGRVDALVNNAFRVPSMKPLADADFAHWRAVIELNVLG 117
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 50.2 bits (120), Expect = 2e-08
Identities = 28/112 (25%), Positives = 49/112 (43%), Gaps = 3/112 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTL-VCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TG GIGR A Q T+ V + + E ++ + G K + D+S+
Sbjct: 6 VTGGSRGIGRATALLLAQEGYTVAVNYQQNLHAAQEVVNLITQAGGKAF-VLQADISDEN 64
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQ-KPDVIRKTFDVNVLAHF 118
+V+ + + + + LVNNAGI+ + E + I + NV +F
Sbjct: 65 QVVAMFTAIDQHDEPLAALVNNAGILFTQCTVENLTAERINRVLSTNVTGYF 116
>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 = 50.3 bits (120), Expect = 3e-08
Identities = 34/114 (29%), Positives = 57/114 (50%), Gaps = 5/114 (4%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIG E A+ F H V L C ++ + + ++LEE + LD+++
Sbjct: 6 ITGANSGIGFETARSFALHGAHVILACRNM-SRASAAVSRILEEWHKARVEAMTLDLASL 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V R A+ + + + +LV NA + P + D + TF VN L HF++
Sbjct: 65 RSVQRFAEAFKAKNSPLHVLVCNAAVF-ALPWTLTE-DGLETTFQVNHLGHFYL 116
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 50.0 bits (120), Expect = 3e-08
Identities = 29/114 (25%), Positives = 48/114 (42%), Gaps = 2/114 (1%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG GIG +A+ + + D+K E L +G N+ DV + +V
Sbjct: 12 TGGSKGIGFAIAEALLAEGYKVAITARDQKELEEAAAELNNKG--NVLGLAADVRDEADV 69
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
R D + G + +L+ NAG+ P+ E P+ R D N+ F+ +
Sbjct: 70 QRAVDAIVAAFGGLDVLIANAGVGHFAPVEELTPEEWRLVIDTNLTGAFYTIKA 123
>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 = 49.8 bits (119), Expect = 3e-08
Identities = 27/85 (31%), Positives = 45/85 (52%), Gaps = 3/85 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA G+G+ +A + +V E +ET+Q +E G + + D+S+ E
Sbjct: 10 VTGANTGLGQGIAVGLAEAGADIVGAGRSEP--SETQQQVEALG-RRFLSLTADLSDIEA 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIM 93
+ + D +E G + ILVNNAGI+
Sbjct: 67 IKALVDSAVEEFGHIDILVNNAGII 91
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 49.8 bits (119), Expect = 3e-08
Identities = 27/109 (24%), Positives = 46/109 (42%), Gaps = 3/109 (2%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA GIG+ LA++F+ ++ DID L + + + D+++ +
Sbjct: 8 TGAAGGIGQALARRFLAAGDRVLALDIDAAALAAFADALGDARFVPV---ACDLTDAASL 64
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
E G V +LV NAG L++ P R +N+ A +
Sbjct: 65 AAALANAAAERGPVDVLVANAGAARAASLHDTTPASWRADNALNLEAAY 113
>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 = 49.4 bits (118), Expect = 4e-08
Identities = 26/120 (21%), Positives = 51/120 (42%), Gaps = 9/120 (7%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN-----NETKQMLEEQGYKNIHTYKLDV 63
+TG+ +GIG +A+ +V ++ G+ + + G K ++ + D+
Sbjct: 7 VTGSTSGIGLGIARALAAAGANIV---LNGFGDAAEIEAVRAGLAAKHGVKVLY-HGADL 62
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
S + + +++ G V ILVNNAGI P+ + + +N+ A F
Sbjct: 63 SKPAAIEDMVAYAQRQFGGVDILVNNAGIQHVAPIEDFPTEKWDAIIALNLSAVFHTTRL 122
>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 = 49.5 bits (118), Expect = 4e-08
Identities = 26/108 (24%), Positives = 50/108 (46%), Gaps = 4/108 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G+GIG+++ F++ +V DIDE+ + + N+ DV++
Sbjct: 6 VTGGGHGIGKQICLDFLEAGDKVVFADIDEERGADFAEAEGP----NLFFVHGDVADETL 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
V V + +++G + +LVNNA L+ + + VN+
Sbjct: 62 VKFVVYAMLEKLGRIDVLVNNAARGSKGILSSLLLEEWDRILSVNLTG 109
>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 = 49.4 bits (118), Expect = 5e-08
Identities = 22/84 (26%), Positives = 39/84 (46%), Gaps = 3/84 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDID-EKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TG +G +A+ Q + + EKG+ K+ + G + I DV +R
Sbjct: 10 ITGGTGVLGGAMARALAQAGAKVAALGRNQEKGDKVAKE-ITALGGRAI-ALAADVLDRA 67
Query: 68 EVLRVADKVRKEVGEVTILVNNAG 91
+ R +++ + G V IL+N AG
Sbjct: 68 SLERAREEIVAQFGTVDILINGAG 91
>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 = 49.0 bits (117), Expect = 6e-08
Identities = 28/107 (26%), Positives = 48/107 (44%), Gaps = 5/107 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG GIG A + + +V DID + ++DV++ ++
Sbjct: 8 VTGAGAGIGAACAARLAREGARVVVADIDGGAAQAVVAQIAGGAL----ALRVDVTDEQQ 63
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKP-DVIRKTFDVNV 114
V + ++ +E G + +LVNNAG M P V +T +N+
Sbjct: 64 VAALFERAVEEFGGLDLLVNNAGAMHLTPAIIDTDLAVWDQTMAINL 110
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 48.9 bits (117), Expect = 7e-08
Identities = 31/112 (27%), Positives = 47/112 (41%), Gaps = 7/112 (6%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA G+G E A V L ++D KG ++ ++ +LD+++
Sbjct: 22 TGANTGLGYETAAALAAKGAHVVLAVRNLD-KGKAAAARITAATPGADVTLQELDLTSLA 80
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 118
V AD +R + +L+NNAG+M K D F N L HF
Sbjct: 81 SVRAAADALRAAYPRIDLLINNAGVMYTPKQTTA---DGFELQFGTNHLGHF 129
>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 = 48.6 bits (116), Expect = 1e-07
Identities = 32/118 (27%), Positives = 48/118 (40%), Gaps = 4/118 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG GIG + ++ + ++K +E E+G+K + DVS+R E
Sbjct: 11 VTGGTKGIGYAIVEELAGLGAEVYTCARNQKELDECLTEWREKGFK-VEGSVCDVSSRSE 69
Query: 69 VLRVADKVRKEVGE-VTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA--HFWVLAH 123
+ D V G + ILVNNAG K + + N A H LAH
Sbjct: 70 RQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEAAYHLSRLAH 127
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 48.4 bits (116), Expect = 1e-07
Identities = 18/83 (21%), Positives = 40/83 (48%), Gaps = 1/83 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G +G +AK+ + + D +++ ++ G + + K DV ++E
Sbjct: 15 ITGGGGVLGGAMAKELARAGAKVAILDRNQEKAEAVVAEIKAAGGEAL-AVKADVLDKES 73
Query: 69 VLRVADKVRKEVGEVTILVNNAG 91
+ + ++ ++ G IL+N AG
Sbjct: 74 LEQARQQILEDFGPCDILINGAG 96
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 48.1 bits (115), Expect = 1e-07
Identities = 26/82 (31%), Positives = 42/82 (51%), Gaps = 1/82 (1%)
Query: 12 AGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQML-EEQGYKNIHTYKLDVSNREEVL 70
AG GIG A++ ++ +V DI E+ ET L E G + DV++ +V
Sbjct: 26 AGTGIGSATARRALEEGARVVISDIHERRLGETADELAAELGLGRVEAVVCDVTSEAQVD 85
Query: 71 RVADKVRKEVGEVTILVNNAGI 92
+ D + +G + +LVNNAG+
Sbjct: 86 ALIDAAVERLGRLDVLVNNAGL 107
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 48.0 bits (115), Expect = 1e-07
Identities = 31/113 (27%), Positives = 49/113 (43%), Gaps = 9/113 (7%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDID--EKGNNETKQMLEEQGYKNIHTYKLDVSN 65
TGA +GIG+ A F + + LV D E L G K Y +D+SN
Sbjct: 12 TGASSGIGKATALAFAKAGWDLALVARSQDALEA----LAAELRSTGVK-AAAYSIDLSN 66
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
E + ++ ++ G +L+NNAG+ PL E + +N+ + F
Sbjct: 67 PEAIAPGIAELLEQFGCPDVLINNAGMAYTGPLLEMPLSDWQWVIQLNLTSVF 119
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 47.8 bits (114), Expect = 2e-07
Identities = 32/129 (24%), Positives = 47/129 (36%), Gaps = 24/129 (18%)
Query: 5 NPFQL-------TGAGNGIGRELAKQFVQ---HKVTLVCWDIDEKGNN-----ETKQMLE 49
F L TG+ G+G E+A+ H LV G N L
Sbjct: 5 QRFSLAGQVALVTGSARGLGFEIARALAGAGAH--VLVN------GRNAATLEAAVAALR 56
Query: 50 EQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKT 109
G D+++ E V ++ E G + ILVNN G +PL E IR
Sbjct: 57 AAGGAA-EALAFDIADEEAVAAAFARIDAEHGRLDILVNNVGARDRRPLAELDDAAIRAL 115
Query: 110 FDVNVLAHF 118
+ +++A
Sbjct: 116 LETDLVAPI 124
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 47.6 bits (114), Expect = 2e-07
Identities = 28/122 (22%), Positives = 50/122 (40%), Gaps = 9/122 (7%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L +TG G+GIGR L ++F+ + + E L ++ ++ +
Sbjct: 4 LHGQVALITGGGSGIGRALVERFLAEGARVAVLERSA----EKLASLRQRFGDHVLVVEG 59
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFD----VNVLA 116
DV++ + R D+ G++ V NAGI L + + + FD VNV
Sbjct: 60 DVTSYADNQRAVDQTVDAFGKLDCFVGNAGIWDYNTSLVDIPAETLDTAFDEIFNVNVKG 119
Query: 117 HF 118
+
Sbjct: 120 YL 121
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 47.8 bits (114), Expect = 2e-07
Identities = 22/82 (26%), Positives = 48/82 (58%), Gaps = 1/82 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG +G+G+ +AK+F + +V ++ E K +E+ + + T ++DV N E+
Sbjct: 6 ITGGSSGMGKAMAKRFAEEGANVVITGRTKEKLEEAKLEIEQFPGQ-VLTVQMDVRNPED 64
Query: 69 VLRVADKVRKEVGEVTILVNNA 90
V ++ +++ ++ G + L+NNA
Sbjct: 65 VQKMVEQIDEKFGRIDALINNA 86
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 47.6 bits (114), Expect = 2e-07
Identities = 28/107 (26%), Positives = 43/107 (40%), Gaps = 11/107 (10%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLE-EQGYKNIHTYKLDVSNREE 68
TGA +GIGR A++ + + G + G + + LDV++
Sbjct: 10 TGASSGIGRATAEKLARAGYRVF-------GTSRNPARAAPIPGVELLE---LDVTDDAS 59
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
V D+V G + +LVNNAG+ E + FD NV
Sbjct: 60 VQAAVDEVIARAGRIDVLVNNAGVGLAGAAEESSIAQAQALFDTNVF 106
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 46.9 bits (112), Expect = 3e-07
Identities = 25/108 (23%), Positives = 47/108 (43%), Gaps = 10/108 (9%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +A++ + G + + +D+++ E
Sbjct: 8 ITGASRGIGAAIARELAPT------HTLLLGGRPAERLDELAAELPGATPFPVDLTDPEA 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ + ++G + +LV+NAG+ P+ E D R T +VNV+A
Sbjct: 62 IAAAVE----QLGRLDVLVHNAGVADLGPVAESTVDEWRATLEVNVVA 105
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 47.0 bits (112), Expect = 3e-07
Identities = 36/114 (31%), Positives = 61/114 (53%), Gaps = 3/114 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN-NETKQMLEEQGYKNIHTYKLDVSNRE 67
+TG +GIGR +A F + + +DE + NETKQ +E++G K + DVS+
Sbjct: 51 ITGGDSGIGRAVAVLFAKEGADIAIVYLDEHEDANETKQRVEKEGVKCL-LIPGDVSDEA 109
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHFWV 120
++ +E+G + ILVNNA P + L + + + KTF N+ ++F +
Sbjct: 110 FCKDAVEETVRELGRLDILVNNAAFQYPQQSLEDITAEQLDKTFKTNIYSYFHM 163
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 46.9 bits (112), Expect = 4e-07
Identities = 26/112 (23%), Positives = 45/112 (40%), Gaps = 14/112 (12%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI------DEKGNNETKQMLEEQGYKNIHTYKLDV 63
TG GIG +A+ +D+ D++ T+Q L G + I + DV
Sbjct: 8 TGGRRGIGLGIARALAAAG-----FDLAINDRPDDEELAATQQELRALGVEVIF-FPADV 61
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCK--PLNEQKPDVIRKTFDVN 113
++ + D + G + LVNNAG+ L + P+ + +N
Sbjct: 62 ADLSAHEAMLDAAQAAWGRIDCLVNNAGVGVKVRGDLLDLTPESFDRVLAIN 113
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 46.6 bits (111), Expect = 4e-07
Identities = 30/114 (26%), Positives = 47/114 (41%), Gaps = 4/114 (3%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYK 60
L +TGA GIG A+ F L D L ++ +
Sbjct: 4 HLAGKRVLITGASKGIGAAAAEAFAAEGCHLHLVARDADALEALAADLRAAHGVDVAVHA 63
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
LD+S+ E ++A E G++ ILVNNAG +P L++ R +++ V
Sbjct: 64 LDLSSPEAREQLA----AEAGDIDILVNNAGAIPGGGLDDVDDAAWRAGWELKV 113
>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 = 46.7 bits (111), Expect = 4e-07
Identities = 26/114 (22%), Positives = 48/114 (42%), Gaps = 4/114 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDI-DEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TGA GIGR +A + + D+ D+ E + G + ++ D+
Sbjct: 6 VTGASRGIGRAIATELAARGFDIAINDLPDDDQATEVVAEVLAAG-RRAIYFQADIGELS 64
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCK--PLNEQKPDVIRKTFDVNVLAHFW 119
+ + D+ ++ G + LVNNAGI L + D + +N+ F+
Sbjct: 65 DHEALLDQAWEDFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIAINLRGPFF 118
>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 = 46.4 bits (110), Expect = 5e-07
Identities = 34/119 (28%), Positives = 49/119 (41%), Gaps = 18/119 (15%)
Query: 9 LTGAGNGIGRELAKQFV--QHKVTLVCWDIDEKGNNETK--QMLEEQGYKNIHTYKLDVS 64
+ GA GIGR LA+ ++ L G + + E G DV+
Sbjct: 3 ILGATGGIGRALARALAGRGWRLLLS-------GRDAGALAGLAAEVGALARPA---DVA 52
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
EV +A +E+G + +LV AG + KPL KP R+ D N+ VL H
Sbjct: 53 AELEVWALA----QELGPLDLLVYAAGAILGKPLARTKPAAWRRILDANLTGAALVLKH 107
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 46.3 bits (110), Expect = 6e-07
Identities = 30/111 (27%), Positives = 49/111 (44%), Gaps = 4/111 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGAG G+G +A F + ++ E +E + + G + H D+++ E
Sbjct: 15 VTGAGRGLGAAIALAFAEAGADVLIAARTESQLDEVAEQIRAAG-RRAHVVAADLAHPEA 73
Query: 69 VLRVADKVRKEVGEVTILVNN-AGIMPCKPLNEQKPDVIRKTFDVNVL-AH 117
+A + + G + I+VNN G MP PL + F NV AH
Sbjct: 74 TAGLAGQAVEAFGRLDIVVNNVGGTMP-NPLLSTSTKDLADAFTFNVATAH 123
>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 = 46.4 bits (110), Expect = 6e-07
Identities = 27/120 (22%), Positives = 46/120 (38%), Gaps = 7/120 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIGR +A++ ++ D E + ++L H + D+
Sbjct: 9 VTGAAQGIGRGVAERLAGEGARVLLVDRSELVHEVLAEILAAGD--AAHVHTADLETYAG 66
Query: 69 VLRVADKVRKEVGEVTILVNNA-GIMPCKPLNEQKPDVIRKTFDVNVLAHFW----VLAH 123
V + G V +L+NN G + KP + + I ++ W VL H
Sbjct: 67 AQGVVRAAVERFGRVDVLINNVGGTIWAKPYEHYEEEQIEAEIRRSLFPTLWCCRAVLPH 126
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 45.9 bits (109), Expect = 8e-07
Identities = 32/113 (28%), Positives = 53/113 (46%), Gaps = 5/113 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN--NETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA GIG A + VC + + Q + QG + + DV++
Sbjct: 7 ITGASRGIGAATALLAAERGYA-VCLNYLRNRDAAEAVVQAIRRQGGEAL-AVAADVADE 64
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKP-LNEQKPDVIRKTFDVNVLAHF 118
+VLR+ + V +E+G + LVNNAGI+ + L + + + F NV+ F
Sbjct: 65 ADVLRLFEAVDRELGRLDALVNNAGILEAQMRLEQMDAARLTRIFATNVVGSF 117
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 45.8 bits (109), Expect = 8e-07
Identities = 28/119 (23%), Positives = 52/119 (43%), Gaps = 27/119 (22%)
Query: 9 LTGAGNGIGRE----LAKQFVQHKVTLVC------WDIDEKGNNETKQMLEEQGYKNIHT 58
+TGAG+G GRE LA++ H V + + +G +
Sbjct: 7 ITGAGSGFGREVALRLARK--GHNVIAGVQIAPQVTALRAEA--------ARRGLA-LRV 55
Query: 59 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 117
KLD+++ + + A+ +V +L+NNAGI + + +++R+ F+ NV
Sbjct: 56 EKLDLTDAIDRAQAAEW------DVDVLLNNAGIGEAGAVVDIPVELVRELFETNVFGP 108
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A;
Provisional.
Length = 256
Score = 45.8 bits (109), Expect = 9e-07
Identities = 23/90 (25%), Positives = 44/90 (48%), Gaps = 1/90 (1%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHT-YK 60
L +TGAG IG L K ++ ++ DID++ NE + L ++ + +
Sbjct: 2 LKGKTILITGAGGLIGSALVKAILEAGGIVIAADIDKEALNELLESLGKEFKSKKLSLVE 61
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNA 90
LD++++E + K ++ G++ VN A
Sbjct: 62 LDITDQESLEEFLSKSAEKYGKIDGAVNCA 91
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 45.6 bits (108), Expect = 9e-07
Identities = 29/114 (25%), Positives = 51/114 (44%), Gaps = 12/114 (10%)
Query: 4 NNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDV 63
+TGA +GIG++LA + + W + G N++ NI T DV
Sbjct: 1 MTAVLITGATSGIGKQLALDYAKQG-----WQVIACGRNQSVLDELHTQSANIFTLAFDV 55
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDV--IRKTFDVNVL 115
++ ++ + E+ I NAG C+ +++ K D + + F+VNVL
Sbjct: 56 TDHPGTKAALSQL-PFIPELWIF--NAG--DCEYMDDGKVDATLMARVFNVNVL 104
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 45.9 bits (109), Expect = 1e-06
Identities = 29/119 (24%), Positives = 40/119 (33%), Gaps = 18/119 (15%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA +GIGR A Q +V + ++ E G +LDV + +
Sbjct: 15 TGASSGIGRACAVALAQRGARVVAAARNA---AALDRLAGETG---CEPLRLDVGDDAAI 68
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFD----VNVLAHFWVLAHF 124
G LVN AGI + D+ + FD VN V H
Sbjct: 69 RAALA----AAGAFDGLVNCAGIASLESA----LDMTAEGFDRVMAVNARGAALVARHV 119
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 45.5 bits (108), Expect = 1e-06
Identities = 27/86 (31%), Positives = 44/86 (51%), Gaps = 8/86 (9%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA G G + ++F+Q HKV I E Q L+++ N++ +LDV NR
Sbjct: 5 VTGATAGFGECITRRFIQQGHKV------IATGRRQERLQELKDELGDNLYIAQLDVRNR 58
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGI 92
+ + + E + +LVNNAG+
Sbjct: 59 AAIEEMLASLPAEWRNIDVLVNNAGL 84
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 45.8 bits (109), Expect = 1e-06
Identities = 36/119 (30%), Positives = 52/119 (43%), Gaps = 22/119 (18%)
Query: 10 TGAGNGIGR----ELAKQ--FVQHKVTLVCWDIDEKGNNETKQMLEEQG-----YKNIHT 58
TGA +G G ELAK+ V I N E ++ L Q +NI
Sbjct: 9 TGASSGFGLLTTLELAKKGYLV----------IATMRNPEKQENLLSQATQLNLQQNIKV 58
Query: 59 YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAH 117
+LDV++ + + V KE+G + +LVNNAG + E + RK F+ NV
Sbjct: 59 QQLDVTD-QNSIHNFQLVLKEIGRIDLLVNNAGYANGGFVEEIPVEEYRKQFETNVFGA 116
>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 = 45.6 bits (108), Expect = 1e-06
Identities = 27/119 (22%), Positives = 50/119 (42%), Gaps = 14/119 (11%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDI-------------DEKGNNETKQMLEEQGYKN 55
+TGA G GR A + ++ D+ + +ET +++E G K
Sbjct: 8 ITGAARGQGRAHAVRLAAEGADIIAIDLCAPLSDYPTYPLATREDLDETARLVEALGRKV 67
Query: 56 IHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+ K DV + EV V + ++ G + ++V NAG++ E + D+N+
Sbjct: 68 L-ARKADVRDLAEVRAVVEDGVEQFGRLDVVVANAGVLSYGRSWELSEEQWDTVLDINL 125
>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 = 45.3 bits (107), Expect = 1e-06
Identities = 24/106 (22%), Positives = 50/106 (47%), Gaps = 1/106 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G GIG ++F + + +D++ + + + +G N + D+++R+
Sbjct: 8 VTGGGGGIGGATCRRFAEEGAKVAVFDLNREAAEKVAADIRAKG-GNAQAFACDITDRDS 66
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
V + +G V +LVNNAG P + +P + + +N+
Sbjct: 67 VDTAVAAAEQALGPVDVLVNNAGWDKFGPFTKTEPPLWERLIAINL 112
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 44.9 bits (107), Expect = 2e-06
Identities = 31/121 (25%), Positives = 50/121 (41%), Gaps = 27/121 (22%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNN------------ETKQMLEEQGYKNIH 57
TGA +G+G +A++F KG + E K L + Y I
Sbjct: 8 TGASSGLGAGMAREFAA------------KGRDLALCARRTDRLEELKAELLAR-YPGIK 54
Query: 58 --TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
LDV++ ++V V + R E+G + ++ NAGI L K + T + N +
Sbjct: 55 VAVAALDVNDHDQVFEVFAEFRDELGGLDRVIVNAGIGKGARLGTGKFWANKATAETNFV 114
Query: 116 A 116
A
Sbjct: 115 A 115
>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 = 44.4 bits (106), Expect = 2e-06
Identities = 25/119 (21%), Positives = 48/119 (40%), Gaps = 6/119 (5%)
Query: 9 LTGAGNGIGRELAKQFVQH-KVTLVCWDIDEKGNNETKQM---LEEQGYKNIHTYKLDVS 64
+TG G+G ELA+ + LV + E + + LE +G + DVS
Sbjct: 5 VTGGLGGLGLELARWLAERGARHLVLLSRSGAPDPEAEALLAELEARG-AEVTVVACDVS 63
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
+R+ V + ++R + + +++ AG++ L + + V W L
Sbjct: 64 DRDAVRALLAEIRADGPPLRGVIHAAGVLRDALLANMTAEDFARVLAPKVTGA-WNLHE 121
>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 = 45.1 bits (107), Expect = 2e-06
Identities = 32/137 (23%), Positives = 58/137 (42%), Gaps = 16/137 (11%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCW------DIDEKGNNETKQMLEEQGYKNIHTYKLDV 63
TG GIGR LA+ + + +E+ +T LE G + DV
Sbjct: 211 TGGAGGIGRALARALARRYGARLVLLGRSPLPPEEEWKAQTLAALEALG-ARVLYISADV 269
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFD--VNVLAH-FWV 120
++ V R+ +KVR+ G + +++ AG++ L ++ + V+ L +
Sbjct: 270 TDAAAVRRLLEKVRERYGAIDGVIHAAGVLRDALLAQKTAEDFEAVLAPKVDGLLNLAQA 329
Query: 121 LAH----FWV--SNLSG 131
LA F+V S++S
Sbjct: 330 LADEPLDFFVLFSSVSA 346
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 44.9 bits (107), Expect = 2e-06
Identities = 29/113 (25%), Positives = 48/113 (42%), Gaps = 8/113 (7%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEE---QGYKNIHTYKLDVSNR 66
TGA +GIGR AK F + +V + + E Q++ E +G + DV +
Sbjct: 12 TGASSGIGRAAAKLFAREGAKVV---VGARRQAELDQLVAEIRAEGGE-AVALAGDVRDE 67
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHF 118
+ + G + I NNAG + P+ E + R+T N+ + F
Sbjct: 68 AYAKALVALAVERFGGLDIAFNNAGTLGEMGPVAEMSLEGWRETLATNLTSAF 120
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 44.5 bits (106), Expect = 2e-06
Identities = 31/125 (24%), Positives = 51/125 (40%), Gaps = 22/125 (17%)
Query: 9 LTGAGNGIGRELAKQFVQHKVT--LVCWDIDEKGNNETKQMLEE-----QGYKNIHTYKL 61
+TGA +GIG+ LA+++ + T LV D L+ + Y
Sbjct: 7 ITGASSGIGQALAREYARQGATLGLVARRTDA---------LQAFAARLPKAARVSVYAA 57
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPD--VIRKTFDVNVLAHFW 119
DV + + + A G +++ NAGI L E++ D V R+ D N
Sbjct: 58 DVRDADALAAAAADFIAAHGLPDVVIANAGI-SVGTLTEEREDLAVFREVMDTNYFG--- 113
Query: 120 VLAHF 124
++A F
Sbjct: 114 MVATF 118
>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 = 44.2 bits (105), Expect = 3e-06
Identities = 35/128 (27%), Positives = 59/128 (46%), Gaps = 19/128 (14%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI------DEKGNNETKQMLEE---QGYKNIHTYK 60
TGAG G+GR A F + +V D+ K ++ ++++E G K + Y
Sbjct: 11 TGAGGGLGRAYALAFAERGAKVVVNDLGGDRKGSGKSSSAADKVVDEIKAAGGKAVANYD 70
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIM---PCKPLNEQKPDVIRKTFDVNVLAH 117
V + E++++ A G V ILVNNAGI+ ++E+ D++ V++
Sbjct: 71 -SVEDGEKIVKTA---IDAFGRVDILVNNAGILRDRSFAKMSEEDWDLV---MRVHLKGS 123
Query: 118 FWVLAHFW 125
F V W
Sbjct: 124 FKVTRAAW 131
>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 = 44.5 bits (106), Expect = 3e-06
Identities = 27/103 (26%), Positives = 42/103 (40%), Gaps = 3/103 (2%)
Query: 10 TGAGN--GIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TG N I +AK + L E +++ E G + DVSN E
Sbjct: 7 TGIANDRSIAWGIAKALHEAGAELAFTYQPEALRKRVEKLAERLGESAL-VLPCDVSNDE 65
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 110
E+ + +V+K+ G++ LV++ P L D RK F
Sbjct: 66 EIKELFAEVKKDWGKLDGLVHSIAFAPKVQLKGPFLDTSRKGF 108
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 44.3 bits (104), Expect = 3e-06
Identities = 28/110 (25%), Positives = 50/110 (45%), Gaps = 1/110 (0%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG+ +A +V+ + + + G K + DVS ++
Sbjct: 14 ITGASTGIGKRVALAYVEAGAQVAIAARHLDALEKLADEIGTSGGKVV-PVCCDVSQHQQ 72
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
V + D+V E+G + I V NAGI+ P+ + + ++ + NV F
Sbjct: 73 VTSMLDQVTAELGGIDIAVCNAGIITVTPMLDMPLEEFQRLQNTNVTGVF 122
>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 = 44.4 bits (105), Expect = 3e-06
Identities = 30/116 (25%), Positives = 52/116 (44%), Gaps = 11/116 (9%)
Query: 9 LTGAGNGIG----RELAKQFVQHKVTLVCWDIDEKGNNETKQM-LEEQGYKNIHTYKLDV 63
+TGA +G+G + LA++ H V + C D K +++ + + Y +H D+
Sbjct: 6 ITGASSGLGLAAAKALARRGEWH-VVMACRDF-LKAEQAAQEVGMPKDSYSVLH---CDL 60
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGI-MPCKPLNEQKPDVIRKTFDVNVLAHF 118
++ + V + D R+ + LV NA + +P D T VN L HF
Sbjct: 61 ASLDSVRQFVDNFRRTGRPLDALVCNAAVYLPTAKEPRFTADGFELTVGVNHLGHF 116
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 44.4 bits (105), Expect = 3e-06
Identities = 32/114 (28%), Positives = 51/114 (44%), Gaps = 5/114 (4%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +G+G A+ Q KV L ++ E + +E +G H LDV++
Sbjct: 14 VTGASSGLGARFAQVLAQAGAKVVLASRRVERL--KELRAEIEAEG-GAAHVVSLDVTDY 70
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
+ + E G + ILVNN+G+ + L + P FD N F+V
Sbjct: 71 QSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPADFDFVFDTNTRGAFFV 124
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 44.2 bits (104), Expect = 3e-06
Identities = 30/115 (26%), Positives = 57/115 (49%), Gaps = 4/115 (3%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TG +GIGR A + + V + ++E+ + K+++EE G K + D+S+
Sbjct: 54 VTGGDSGIGRAAAIAYAREGADVAISYLPVEEEDAQDVKKIIEECGRKAV-LLPGDLSDE 112
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKP-LNEQKPDVIRKTFDVNVLAHFWV 120
+ + + K +G + I+ AG P + + + +KTF +NV A FW+
Sbjct: 113 KFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADLTSEQFQKTFAINVFALFWL 167
>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 = 43.9 bits (104), Expect = 4e-06
Identities = 26/94 (27%), Positives = 43/94 (45%), Gaps = 13/94 (13%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVC----WDIDEKGNN--------ETKQMLEEQGYKNIH 57
TGA GIGR +A + + T+V + G+ ET + +E G +
Sbjct: 9 TGASRGIGRAIALRLAKAGATVVVAAKTASEGDNGSAKSLPGTIEETAEEIEAAGGQ-AL 67
Query: 58 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 91
+DV + ++V + + + G + ILVNNAG
Sbjct: 68 PIVVDVRDEDQVRALVEATVDQFGRLDILVNNAG 101
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 42.5 bits (100), Expect = 1e-05
Identities = 23/107 (21%), Positives = 39/107 (36%), Gaps = 3/107 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G+GR A + G Q L + +D+ + +
Sbjct: 12 ITGGFGGLGRATAAWLAARGARVALIGR---GAAPLSQTLPGVPADALRIGGIDLVDPQA 68
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
R D+V ++ G + LVN AG + + D + + VNV
Sbjct: 69 ARRAVDEVNRQFGRLDALVNIAGAFVWGTIADGDADTWDRMYGVNVK 115
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 42.2 bits (100), Expect = 1e-05
Identities = 31/113 (27%), Positives = 50/113 (44%), Gaps = 13/113 (11%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETK--QMLEEQGY-KNIHTYKLDV 63
LTGA GIG+ LA+ ++ LV G N K + Y D+
Sbjct: 10 LTGASGGIGQALAEALAAAGARLLLV-------GRNAEKLEALAARLPYPGRHRWVVADL 62
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++ V + R E+G + +L+NNAG+ L +Q P+ I + +N+ A
Sbjct: 63 TSEAGREAVLARAR-EMGGINVLINNAGVNHFALLEDQDPEAIERLLALNLTA 114
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 42.4 bits (100), Expect = 1e-05
Identities = 26/109 (23%), Positives = 51/109 (46%), Gaps = 2/109 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVC-WDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TG+ GIG+ +A + + + + K ET + +E G K + K +V + E
Sbjct: 9 VTGSSRGIGKAIALRLAEEGYDIAVNYARSRKAAEETAEEIEALGRKAL-AVKANVGDVE 67
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++ + ++ +E G + + VNNA +P E + T ++N A
Sbjct: 68 KIKEMFAQIDEEFGRLDVFVNNAASGVLRPAMELEESHWDWTMNINAKA 116
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 42.1 bits (99), Expect = 2e-05
Identities = 31/107 (28%), Positives = 49/107 (45%), Gaps = 11/107 (10%)
Query: 11 GAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQML-EEQGYKNIHTYKLDVSNREEV 69
G GIG + ++FV + G+ + + L +E G + + D ++R+ V
Sbjct: 13 GGSRGIGAAIVRRFVTDGANVR---FTYAGSKDAAERLAQETGATAV---QTDSADRDAV 66
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ D VRK G + ILV NAGI E D I + F +N+ A
Sbjct: 67 I---DVVRKS-GALDILVVNAGIAVFGDALELDADDIDRLFKINIHA 109
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 42.4 bits (100), Expect = 2e-05
Identities = 27/83 (32%), Positives = 40/83 (48%), Gaps = 1/83 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
LTGA +GIG A+QF + T+V E + + G + D+S+ +
Sbjct: 45 LTGASSGIGEAAAEQFARRGATVVAVARREDLLDAVADRITRAG-GDAMAVPCDLSDLDA 103
Query: 69 VLRVADKVRKEVGEVTILVNNAG 91
V + V K +G V IL+NNAG
Sbjct: 104 VDALVADVEKRIGGVDILINNAG 126
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 42.2 bits (99), Expect = 2e-05
Identities = 33/115 (28%), Positives = 56/115 (48%), Gaps = 4/115 (3%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA +GIGR A F + + L +E+ E Q+++ +G K + D+ +
Sbjct: 60 ITGADSGIGRATAIAFAREGADIALNYLPEEEQDAAEVVQLIQAEGRKAV-ALPGDLKDE 118
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPC-KPLNEQKPDVIRKTFDVNVLAHFWV 120
++ ++ KE+G + ILVN AG K + + + TF NV A FW+
Sbjct: 119 AFCRQLVERAVKELGGLDILVNIAGKQTAVKDIADITTEQFDATFKTNVYAMFWL 173
>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 = 42.1 bits (99), Expect = 2e-05
Identities = 32/111 (28%), Positives = 49/111 (44%), Gaps = 9/111 (8%)
Query: 9 LTGAGNGIGRELAKQFV-----QHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDV 63
+TG +GIG LA + + KV D+ +KG + + T +LDV
Sbjct: 5 ITGCSSGIGLHLAVRLASDPSKRFKVYATMRDLKKKGRLW--EAAGALAGGTLETLQLDV 62
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+ + V ++V + V +LV NAG+ PL D + FDVNV
Sbjct: 63 CDSKSVAAAVERVTE--RHVDVLVCNAGVGLLGPLEALSEDAMASVFDVNV 111
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 42.0 bits (99), Expect = 2e-05
Identities = 35/127 (27%), Positives = 54/127 (42%), Gaps = 18/127 (14%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI------DEKGNNETKQMLEE---QGYKNIHTYK 60
TGAG GIGR A F +V DI G + + +++E G + +
Sbjct: 12 TGAGGGIGRAHALAFAAEGARVVVNDIGVGLDGSASGGSAAQAVVDEIVAAGGEAV-ANG 70
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGI----MPCKPLNEQKPDVIRKTFDVNVLA 116
D+++ + + D + G + +LVNNAGI M E+ VI V++
Sbjct: 71 DDIADWDGAANLVDAAVETFGGLDVLVNNAGILRDRMIANMSEEEWDAVIA----VHLKG 126
Query: 117 HFWVLAH 123
HF L H
Sbjct: 127 HFATLRH 133
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 41.8 bits (99), Expect = 2e-05
Identities = 31/112 (27%), Positives = 48/112 (42%), Gaps = 11/112 (9%)
Query: 10 TGAGNGIGRELAKQFVQHKVT-LVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TG GIG +A+ F+ T +VC G E + + DV + ++
Sbjct: 12 TGGTRGIGAGIARAFLAAGATVVVC------GRRAP----ETVDGRPAEFHAADVRDPDQ 61
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWV 120
V + D + + G + +LVNNAG P E P K ++N+LA V
Sbjct: 62 VAALVDAIVERHGRLDVLVNNAGGSPYALAAEASPRFHEKIVELNLLAPLLV 113
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 41.6 bits (98), Expect = 3e-05
Identities = 29/120 (24%), Positives = 44/120 (36%), Gaps = 8/120 (6%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLV---CWDIDEKGNNETKQMLEEQGYKNIHTYKLDV 63
+TG G+GR +A + V ++ + + +E G K DV
Sbjct: 11 ITGGSGGLGRAIAVRLAADGADVIVLDIHPMRGRAEAD-AVAAGIEAAGGK-ALGLAFDV 68
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
+ D +E G + ILVNNAGI E + DVN L F+ +
Sbjct: 69 RDFAATRAALDAGVEEFGRLDILVNNAGIATDAAFAELSIEEWDDVIDVN-LDGFFNVTQ 127
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 41.1 bits (96), Expect = 3e-05
Identities = 31/113 (27%), Positives = 51/113 (45%), Gaps = 6/113 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIH---TYKLDVSN 65
+TG GIG+ + Q +V I+ + E + L + K H + DVS
Sbjct: 11 VTGGAKGIGKAITVALAQEGAKVV---INYNSSKEAAENLVNELGKEGHDVYAVQADVSK 67
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
E+ R+ ++ G+V ILVNNAGI + + + + DVN+ + F
Sbjct: 68 VEDANRLVEEAVNHFGKVDILVNNAGITRDRTFKKLNREDWERVIDVNLSSVF 120
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 41.3 bits (97), Expect = 4e-05
Identities = 28/129 (21%), Positives = 58/129 (44%), Gaps = 14/129 (10%)
Query: 9 LTGAG--NGIGRELAKQFVQHKVTL-----------VCWDIDEKGNNETKQMLEEQGYKN 55
+TG +GIG + K+ + + + W +D+ + ++ L + G K
Sbjct: 11 VTGVSRLDGIGAAICKELAEAGADIFFTYWTAYDKEMPWGVDQDEQIQLQEELLKNGVK- 69
Query: 56 IHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
+ + +LD++ + + +KV +++G ILVNNA + + + K + VNV
Sbjct: 70 VSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNAAYSTNNDFSNLTAEELDKHYMVNVR 129
Query: 116 AHFWVLAHF 124
A + + F
Sbjct: 130 ATTLLSSQF 138
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 41.0 bits (97), Expect = 5e-05
Identities = 29/107 (27%), Positives = 45/107 (42%), Gaps = 4/107 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TGA GIG +A+ + +VC D+ G G LD++ +
Sbjct: 216 TGAARGIGAAIAEVLARDGAHVVCLDVPAAGEALAAVANRVGGT----ALALDITAPDAP 271
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
R+A+ + + G + I+V+NAGI K L VN+LA
Sbjct: 272 ARIAEHLAERHGGLDIVVHNAGITRDKTLANMDEARWDSVLAVNLLA 318
>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 = 40.9 bits (96), Expect = 5e-05
Identities = 27/110 (24%), Positives = 47/110 (42%), Gaps = 2/110 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG GIGR +A+ F++ ++ + + + L G D+S+ E
Sbjct: 11 VTGGSRGIGRMIAQGFLEAGARVIISARKAEACADAAEELSAYG--ECIAIPADLSSEEG 68
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ + +V + + +LVNNAG PL K D+NV + F
Sbjct: 69 IEALVARVAERSDRLDVLVNNAGATWGAPLEAFPESGWDKVMDINVKSVF 118
>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 = 40.2 bits (95), Expect = 5e-05
Identities = 24/119 (20%), Positives = 42/119 (35%), Gaps = 6/119 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCW----DIDEKGNNETKQMLEEQGYKNIHTYKLDVS 64
+TG G+GR LA+ + + D G LE G + DV+
Sbjct: 5 ITGGLGGLGRALARWLAERGARRLVLLSRSGPDAPGAAALLAELEAAG-ARVTVVACDVA 63
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
+R+ + V + G +T +++ AG++ L P+ W L
Sbjct: 64 DRDALAAVLAAIPAVEGPLTGVIHAAGVLDDGVLASLTPERFAAVLAPKAAG-AWNLHE 121
>gnl|CDD|235608 PRK05786, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 238
Score = 40.5 bits (95), Expect = 5e-05
Identities = 22/90 (24%), Positives = 35/90 (38%), Gaps = 2/90 (2%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L + G G+G +A ++ + +E K+ L + G NIH
Sbjct: 3 LKGKKVAIIGVSEGLGYAVAYFALKEGAQVCINSRNENKLKRMKKTLSKYG--NIHYVVG 60
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAG 91
DVS+ E V +K K + + LV G
Sbjct: 61 DVSSTESARNVIEKAAKVLNAIDGLVVTVG 90
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 40.3 bits (94), Expect = 7e-05
Identities = 23/96 (23%), Positives = 43/96 (44%), Gaps = 10/96 (10%)
Query: 5 NPFQL-------TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIH 57
F L TG G+G+ +A + +V + ET+ +E G K H
Sbjct: 2 QLFDLNGKVAIITGCNTGLGQGMAIGLAKAGADIV--GVGVAEAPETQAQVEALGRK-FH 58
Query: 58 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIM 93
D+ ++++ + + + +G + IL+NNAGI+
Sbjct: 59 FITADLIQQKDIDSIVSQAVEVMGHIDILINNAGII 94
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 40.2 bits (94), Expect = 8e-05
Identities = 33/124 (26%), Positives = 54/124 (43%), Gaps = 16/124 (12%)
Query: 9 LTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETK------QMLEEQGYKNIHTYK 60
+TG G+GIG+ +A V V +V G N K ++ +G +
Sbjct: 12 VTGGGSGIGKGVAAGLVAAGAAVMIV-------GRNPDKLAAAAEEIEALKGAGAVRYEP 64
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAG-IMPCKPLNEQKPDVIRKTFDVNVLAHFW 119
DV++ ++V R D G + +V+ AG P+ + D R+T D+NV +
Sbjct: 65 ADVTDEDQVARAVDAATAWHGRLHGVVHCAGGSETIGPITQIDSDAWRRTVDLNVNGTMY 124
Query: 120 VLAH 123
VL H
Sbjct: 125 VLKH 128
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 40.3 bits (94), Expect = 8e-05
Identities = 27/92 (29%), Positives = 46/92 (50%), Gaps = 6/92 (6%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNN-ETKQMLEEQGYKNIHTYK 60
L+ +TGA GIG E+A+ + H + + G E + L + + + +
Sbjct: 4 LSGRKALVTGASGGIGEEIAR--LLHAQGAI---VGLHGTRVEKLEALAAELGERVKIFP 58
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGI 92
++S+R+EV + K ++ V ILVNNAGI
Sbjct: 59 ANLSDRDEVKALGQKAEADLEGVDILVNNAGI 90
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 39.6 bits (93), Expect = 2e-04
Identities = 23/105 (21%), Positives = 42/105 (40%), Gaps = 4/105 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIG E A+QF+ + D + L E + + D +
Sbjct: 12 TGGTSGIGLETARQFLAEGARVAITGRDPASLEAARAELGE----SALVIRADAGDVAAQ 67
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV 114
+A + + G + + NAG+ PL + + ++F+ NV
Sbjct: 68 KALAQALAEAFGRLDAVFINAGVAKFAPLEDWDEAMFDRSFNTNV 112
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 39.2 bits (92), Expect = 2e-04
Identities = 25/120 (20%), Positives = 54/120 (45%), Gaps = 4/120 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEV 69
TG +GIG ++ + + V + + E + L + ++D+++ +
Sbjct: 13 TGGASGIGAAISLRLAEEGAIPVIFGRSAPDD-EFAEELRALQPRAEF-VQVDLTDDAQC 70
Query: 70 LRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHFWVSNL 129
++ + G + LVNNAG+ L E + + + N L H++V+AH+ + +L
Sbjct: 71 RDAVEQTVAKFGRIDGLVNNAGVNDGVGL-EAGREAFVASLERN-LIHYYVMAHYCLPHL 128
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 38.5 bits (90), Expect = 3e-04
Identities = 33/117 (28%), Positives = 53/117 (45%), Gaps = 6/117 (5%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TGA +G+G LA++ +V L + KG + + LD+S+
Sbjct: 20 TGASDGLGLGLARRLAAAGAEVILPVRNRA-KGEAAVAAIRTAVPDAKLSLRALDLSSLA 78
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLAHFWVLAH 123
V + +++R E + +L+NNAG+M P P + D F N L HF + AH
Sbjct: 79 SVAALGEQLRAEGRPIHLLINNAGVMTP--PERQTTADGFELQFGTNHLGHFALTAH 133
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 38.5 bits (89), Expect = 3e-04
Identities = 29/120 (24%), Positives = 62/120 (51%), Gaps = 8/120 (6%)
Query: 9 LTGAGNGIGRELAKQFVQH-KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
+TGA GIGR +A + + + + +++ +ET + +E G K + D+++ +
Sbjct: 11 VTGASRGIGRAIAMRLANDGALVAIHYGRNKQAADETIREIESNGGKAF-LIEADLNSID 69
Query: 68 EVLRVADKVRKEV------GEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
V ++ ++++ E+ E+ ILVNNAGI + ++ + VN+ A F+++
Sbjct: 70 GVKKLVEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIMAVNIKAPFFLI 129
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 38.5 bits (90), Expect = 3e-04
Identities = 22/84 (26%), Positives = 38/84 (45%), Gaps = 3/84 (3%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TG +GIG + ++ V + C +E+ + ++ E+ + + DV +
Sbjct: 14 TGGSSGIGLATVELLLEAGASVAI-CGRDEERLASAEARLREKFPGARLLAARCDVLDEA 72
Query: 68 EVLRVADKVRKEVGEVTILVNNAG 91
+V A V G V +LVNNAG
Sbjct: 73 DVAAFAAAVEARFGGVDMLVNNAG 96
>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 = 38.2 bits (89), Expect = 4e-04
Identities = 19/108 (17%), Positives = 46/108 (42%)
Query: 11 GAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVL 70
G G +G L + + DI+ + + + + + + + D +N + V+
Sbjct: 9 GGGQTLGEFLCHGLAEAGYDVAVADINSENAEKVADEINAEYGEKAYGFGADATNEQSVI 68
Query: 71 RVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
++ V + V +LV +AGI + + + ++ VN++ +F
Sbjct: 69 ALSKGVDEIFKRVDLLVYSAGIAKSAKITDFELGDFDRSLQVNLVGYF 116
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 38.5 bits (90), Expect = 4e-04
Identities = 35/121 (28%), Positives = 54/121 (44%), Gaps = 16/121 (13%)
Query: 10 TGA--GNGIG----RELAKQ----FVQH----KVTLVCWDIDEKGNNETKQMLEEQGYKN 55
TGA NGIG R LA + F + T+ W + +K K+ +E G +
Sbjct: 11 TGASRLNGIGAAVCRRLAAKGIDIFFTYWSPYDKTMP-WGMHDKEPVLLKEEIESYGVR- 68
Query: 56 IHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
++D+S RV V + +G+ +IL+NNA L E + + K + VNV
Sbjct: 69 CEHMEIDLSQPYAPNRVFYAVSERLGDPSILINNAAYSTHTRLEELTAEQLDKHYAVNVR 128
Query: 116 A 116
A
Sbjct: 129 A 129
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 38.5 bits (90), Expect = 4e-04
Identities = 23/82 (28%), Positives = 33/82 (40%), Gaps = 6/82 (7%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDID-EKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TG IG +A+ V + DID + G + E + I T D+++
Sbjct: 12 TGGATLIGAAVARALVAAGARVAIVDIDADNGAAVAASLGERARF--IAT---DITDDAA 66
Query: 69 VLRVADKVRKEVGEVTILVNNA 90
+ R V G V ILVN A
Sbjct: 67 IERAVATVVARFGRVDILVNLA 88
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 38.1 bits (89), Expect = 4e-04
Identities = 22/83 (26%), Positives = 43/83 (51%), Gaps = 6/83 (7%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQML-EEQGYKNIHTYKLDVSNREE 68
TG G+G +A+ F + +V ++ + + + L +E G + I + DV++RE+
Sbjct: 11 TGGSRGLGAAIARAFAREGARVV---VNYHQSEDAAEALADELGDRAI-ALQADVTDREQ 66
Query: 69 VLRVADKVRKEVGE-VTILVNNA 90
V + + G+ +T +VNNA
Sbjct: 67 VQAMFATATEHFGKPITTVVNNA 89
>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 = 38.3 bits (89), Expect = 4e-04
Identities = 23/83 (27%), Positives = 38/83 (45%), Gaps = 1/83 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIG +A++ + + + E+G T + L E G DV + E
Sbjct: 8 VTGATSGIGLAIARRLGKEGLRVFVCARGEEGLATTVKELREAGV-EADGRTCDVRSVPE 66
Query: 69 VLRVADKVRKEVGEVTILVNNAG 91
+ + G + +LVNNAG
Sbjct: 67 IEALVAAAVARYGPIDVLVNNAG 89
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase;
Validated.
Length = 253
Score = 38.3 bits (89), Expect = 4e-04
Identities = 21/85 (24%), Positives = 42/85 (49%), Gaps = 3/85 (3%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G+G+ +A + +V +I E ET + + G + + + D+ +
Sbjct: 15 VTGCDTGLGQGMALGLAEAGCDIVGINIVEP--TETIEQVTALGRRFL-SLTADLRKIDG 71
Query: 69 VLRVADKVRKEVGEVTILVNNAGIM 93
+ + ++ E G + ILVNNAG++
Sbjct: 72 IPALLERAVAEFGHIDILVNNAGLI 96
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 38.2 bits (89), Expect = 4e-04
Identities = 22/84 (26%), Positives = 40/84 (47%), Gaps = 1/84 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GIG+ A+ F + LV DE+ + G + + DV++ ++
Sbjct: 12 ITGASSGIGQATAEAFARRGARLVLAARDEEALQAVAEECRALGAEVL-VVPTDVTDADQ 70
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
V +A + G + + VNN G+
Sbjct: 71 VKALATQAASFGGRIDVWVNNVGV 94
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 38.1 bits (89), Expect = 5e-04
Identities = 29/118 (24%), Positives = 44/118 (37%), Gaps = 11/118 (9%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
TG +G+G E + Q V + D G + LD+++ E
Sbjct: 32 TGGYSGLGLETTRALAQAGAHVIVPARRPD-------VAREALAGIDGVEVVMLDLADLE 84
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHFW 125
V A++ + IL+NNAG+M C P F N L HF ++ W
Sbjct: 85 SVRAFAERFLDSGRRIDILINNAGVMAC-PETRVGDG-WEAQFATNHLGHFALVNLLW 140
>gnl|CDD|224011 COG1086, COG1086, Predicted nucleoside-diphosphate sugar epimerases
[Cell envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 588
Score = 38.0 bits (89), Expect = 5e-04
Identities = 18/65 (27%), Positives = 27/65 (41%), Gaps = 2/65 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKV-TLVCWDIDEKGNNETKQMLEE-QGYKNIHTYKLDVSNRE 67
TG G IG EL +Q ++ ++ + DE L E + Y DV +R+
Sbjct: 256 TGGGGSIGSELCRQILKFNPKEIILFSRDEYKLYLIDMELREKFPELKLRFYIGDVRDRD 315
Query: 68 EVLRV 72
V R
Sbjct: 316 RVERA 320
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 37.4 bits (87), Expect = 6e-04
Identities = 27/128 (21%), Positives = 46/128 (35%), Gaps = 37/128 (28%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNI----HT------ 58
+TGA GIG L+ L G++ I
Sbjct: 8 VTGATKGIGLALS------------------------LRLANLGHQVIGIARSAIDDFPG 43
Query: 59 --YKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ D+++ E+ ++ E+ V +VNN GI +PL + ++ +D+NV A
Sbjct: 44 ELFACDLADIEQTAATLAQIN-EIHPVDAIVNNVGIALPQPLGKIDLAALQDVYDLNVRA 102
Query: 117 HFWVLAHF 124
V F
Sbjct: 103 AVQVTQAF 110
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 37.5 bits (87), Expect = 8e-04
Identities = 27/89 (30%), Positives = 41/89 (46%), Gaps = 13/89 (14%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEE---QGYKNIHTYKLDVSNR 66
TGA G+GR A + T+V D+ + +L+E G K + D+S R
Sbjct: 18 TGAAAGLGRAEALGLARLGATVVVNDVAS--ALDASDVLDEIRAAGAKAVAVAG-DISQR 74
Query: 67 E---EVLRVADKVRKEVGEVTILVNNAGI 92
E++ A +G + I+VNNAGI
Sbjct: 75 ATADELVATAV----GLGGLDIVVNNAGI 99
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 37.3 bits (87), Expect = 8e-04
Identities = 33/119 (27%), Positives = 54/119 (45%), Gaps = 4/119 (3%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTY 59
L +TG G+G +A+ F + ++C EKG + + LE G K
Sbjct: 4 LDGKVALVTGGTQGLGAAIARAFAERGAAGLVICGRNAEKGEAQAAE-LEALGAK-AVFV 61
Query: 60 KLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ D+S+ E+ RV + G + LVN AG+ + + P++ + F VNV A F
Sbjct: 62 QADLSDVEDCRRVVAAADEAFGRLDALVNAAGLTDRGTILDTSPELFDRHFAVNVRAPF 120
>gnl|CDD|181416 PRK08415, PRK08415, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 274
Score = 37.4 bits (87), Expect = 8e-04
Identities = 15/64 (23%), Positives = 35/64 (54%), Gaps = 2/64 (3%)
Query: 49 EEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRK 108
+E G + Y+LDVS E +A+ ++K++G++ +V++ P + L + ++
Sbjct: 52 QELGSDYV--YELDVSKPEHFKSLAESLKKDLGKIDFIVHSVAFAPKEALEGSFLETSKE 109
Query: 109 TFDV 112
F++
Sbjct: 110 AFNI 113
>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 = 37.3 bits (87), Expect = 8e-04
Identities = 25/122 (20%), Positives = 49/122 (40%), Gaps = 9/122 (7%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L +TG G+G+GR L ++FV + D + E + + + +
Sbjct: 2 LKGEVALITGGGSGLGRALVERFVAEGAKVAVLDRSAEKVAELRADFGD----AVVGVEG 57
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCK-PLNEQKPDVIRKTFD----VNVLA 116
DV + + R + + G++ + NAGI L + + + + FD +NV
Sbjct: 58 DVRSLADNERAVARCVERFGKLDCFIGNAGIWDYSTSLVDIPEEKLDEAFDELFHINVKG 117
Query: 117 HF 118
+
Sbjct: 118 YI 119
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 37.3 bits (87), Expect = 8e-04
Identities = 33/124 (26%), Positives = 49/124 (39%), Gaps = 13/124 (10%)
Query: 5 NPFQL-------TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKN 55
N F L TGA GIG +AK Q V + +D G + G K
Sbjct: 2 NLFDLTGKIALVTGASRGIGEAIAKLLAQQGAHVIVSSRKLD--GCQAVADAIVAAGGK- 58
Query: 56 IHTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFDVNV 114
+ E++ + +R+ G + ILVNNA P + + +KT DVN+
Sbjct: 59 AEALACHIGEMEQIDALFAHIRERHGRLDILVNNAAANPYFGHILDTDLGAFQKTVDVNI 118
Query: 115 LAHF 118
+F
Sbjct: 119 RGYF 122
>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 = 37.4 bits (87), Expect = 9e-04
Identities = 35/118 (29%), Positives = 55/118 (46%), Gaps = 10/118 (8%)
Query: 10 TGAGNGIGRELAKQFVQHKVTL-VCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
TGA GIGR +A Q + T+ + T + +E +G K I D S+ +E
Sbjct: 9 TGASRGIGRGIALQLGEAGATVYITGRTILPQLPGTAEEIEARGGKCIPVR-CDHSDDDE 67
Query: 69 VLRVADKVRKEV-GEVTILVNNA-------GIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
V + ++V +E G + ILVNNA + KP E+ P + +V + AH+
Sbjct: 68 VEALFERVAREQQGRLDILVNNAYAAVQLILVGVAKPFWEEPPTIWDDINNVGLRAHY 125
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 37.2 bits (87), Expect = 0.001
Identities = 23/103 (22%), Positives = 42/103 (40%), Gaps = 4/103 (3%)
Query: 10 TGAGN--GIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
G N I +AK + L E+ +++ EE G + DV+N E
Sbjct: 12 MGVANNRSIAWGIAKALAEQGAELAFTYQGERLEKRVEELAEELG--SDLVLPCDVTNDE 69
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTF 110
+ + ++K+ G++ LV++ P + L D R+ F
Sbjct: 70 SIDALFATIKKKWGKLDGLVHSIAFAPKEELKGDYLDTSREGF 112
>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
Length = 259
Score = 37.1 bits (86), Expect = 0.001
Identities = 21/92 (22%), Positives = 49/92 (53%), Gaps = 8/92 (8%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEE-QGYKNIHTYKLDVSN 65
+T + GIG +A++ ++ +V I + ++ L+E + Y ++ K D+S+
Sbjct: 5 VTASSRGIGFNVARELLKKGARVV-----ISSRNEENLEKALKELKEYGEVYAVKADLSD 59
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKP 97
++++ + + + +G + LV NAG + C+P
Sbjct: 60 KDDLKNLVKEAWELLGGIDALVWNAGNVRCEP 91
>gnl|CDD|177654 PLN00015, PLN00015, protochlorophyllide reductase.
Length = 308
Score = 37.0 bits (86), Expect = 0.001
Identities = 33/126 (26%), Positives = 56/126 (44%), Gaps = 15/126 (11%)
Query: 9 LTGAGNGIGRELAKQFV---QHKVTLVCWDIDEKGNNETKQM-LEEQGYKNIHTYKLDVS 64
+TGA +G+G AK + V + C D K K + + Y +H LD++
Sbjct: 2 ITGASSGLGLATAKALAETGKWHVVMACRDF-LKAERAAKSAGMPKDSYTVMH---LDLA 57
Query: 65 NREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNV-LAHFWVLAH 123
+ + V + D R+ + +LV NA + P ++P F+++V H L H
Sbjct: 58 SLDSVRQFVDNFRRSGRPLDVLVCNAAVY--LP-TAKEPTFTADGFELSVGTNH---LGH 111
Query: 124 FWVSNL 129
F +S L
Sbjct: 112 FLLSRL 117
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 36.8 bits (86), Expect = 0.001
Identities = 22/108 (20%), Positives = 46/108 (42%), Gaps = 10/108 (9%)
Query: 14 NGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVLR 71
N I +AK + +V L W ++ +E LDV++ E++
Sbjct: 6 NSIAWAIAKAAAEEGAEVVLTTWP-PALRMGAVDELAKELPAD---VIPLDVTSDEDIDE 61
Query: 72 VADKVRKEVGEVTILVNNAGIMP----CKPLNEQKPDVIRKTFDVNVL 115
+ +KV+++ G++ LV++ + P KP + + K D++
Sbjct: 62 LFEKVKEDGGKIDFLVHSIAMSPEIRKGKPYLDTSREGFLKALDISAY 109
>gnl|CDD|236389 PRK09134, PRK09134, short chain dehydrogenase; Provisional.
Length = 258
Score = 36.8 bits (86), Expect = 0.001
Identities = 28/121 (23%), Positives = 46/121 (38%), Gaps = 17/121 (14%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDI--------DEKGNNETKQMLEEQGYKNIHTYKL 61
TGA IGR +A H +D+ DE + G + + +
Sbjct: 15 TGAARRIGRAIALDLAAHG-----FDVAVHYNRSRDEA--EALAAEIRALGRRAV-ALQA 66
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
D+++ EV + + +G +T+LVNNA + + N+ A F VL
Sbjct: 67 DLADEAEVRALVARASAALGPITLLVNNASLFEYDSAASFTRASWDRHMATNLRAPF-VL 125
Query: 122 A 122
A
Sbjct: 126 A 126
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 36.5 bits (84), Expect = 0.001
Identities = 29/91 (31%), Positives = 48/91 (52%), Gaps = 14/91 (15%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLV--CWDIDEKGNNETKQM--LEEQ---GYKNIHTYKL 61
+TG GIG + ++ + +V C G N +++ LE+Q G+ I + +
Sbjct: 8 VTGGMGGIGTSICQRLHKDGFKVVAGC------GPNSPRRVKWLEDQKALGFDFIAS-EG 60
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGI 92
+V + + DKV+ EVGE+ +LVNNAGI
Sbjct: 61 NVGDWDSTKAAFDKVKAEVGEIDVLVNNAGI 91
>gnl|CDD|217199 pfam02719, Polysacc_synt_2, Polysaccharide biosynthesis protein.
This is a family of diverse bacterial polysaccharide
biosynthesis proteins including the CapD protein, WalL
protein mannosyl-transferase and several putative
epimerases (e.g. WbiI).
Length = 280
Score = 36.3 bits (85), Expect = 0.002
Identities = 17/65 (26%), Positives = 31/65 (47%), Gaps = 2/65 (3%)
Query: 10 TGAGNGIGRELAKQFVQHKV-TLVCWDIDEKGNNE-TKQMLEEQGYKNIHTYKLDVSNRE 67
TG G IG EL +Q ++ ++ + DE E +++ +E + + DV +RE
Sbjct: 4 TGGGGSIGSELCRQILKFNPKKIILFSRDEFKLYEIRQELRQEYNDPKLRFFIGDVRDRE 63
Query: 68 EVLRV 72
+ R
Sbjct: 64 RLERA 68
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 36.0 bits (84), Expect = 0.002
Identities = 24/92 (26%), Positives = 37/92 (40%), Gaps = 14/92 (15%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEK---------GNNET-KQMLEEQGYKNIHTY 59
TGA GIG +A + + +V I K G T + +E G + +
Sbjct: 12 TGASRGIGLAIALRAARDGANIV---IAAKTAEPHPKLPGTIHTAAEEIEAAGGQAL-PL 67
Query: 60 KLDVSNREEVLRVADKVRKEVGEVTILVNNAG 91
DV + ++V K + G + I VNNA
Sbjct: 68 VGDVRDEDQVAAAVAKAVERFGGIDICVNNAS 99
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 35.7 bits (83), Expect = 0.003
Identities = 11/30 (36%), Positives = 16/30 (53%)
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAG 91
D++ E VA V + +G V ILV+ G
Sbjct: 57 DLTTAEGCAAVARAVLERLGGVDILVHVLG 86
>gnl|CDD|169556 PRK08703, PRK08703, short chain dehydrogenase; Provisional.
Length = 239
Score = 35.7 bits (82), Expect = 0.003
Identities = 25/122 (20%), Positives = 53/122 (43%), Gaps = 4/122 (3%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYK 60
TL++ +TGA G+G ++AK + T++ +K + + E G+ +
Sbjct: 3 TLSDKTILVTGASQGLGEQVAKAYAAAGATVILVARHQKKLEKVYDAIVEAGHPEPFAIR 62
Query: 61 LDVSN--REEVLRVADKVRKEV-GEVTILVNNAG-IMPCKPLNEQKPDVIRKTFDVNVLA 116
D+ + +E + A + + G++ +V+ AG PL+ Q + +N +A
Sbjct: 63 FDLMSAEEKEFEQFAATIAEATQGKLDGIVHCAGYFYALSPLDFQTVAEWVNQYRINTVA 122
Query: 117 HF 118
Sbjct: 123 PM 124
>gnl|CDD|180796 PRK07023, PRK07023, short chain dehydrogenase; Provisional.
Length = 243
Score = 35.4 bits (82), Expect = 0.004
Identities = 26/120 (21%), Positives = 46/120 (38%), Gaps = 25/120 (20%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQM----LEEQGYKNIHTYKLDVS 64
+TG G+G LA+Q +Q + ++ + + L E +LD+S
Sbjct: 6 VTGHSRGLGAALAEQLLQPGIAVLG--VARSRHPSLAAAAGERLAE--------VELDLS 55
Query: 65 NREEVLRVADKVRKEVG-------EVTILVNNAGIM-PCKPLNEQKPDVIRKTFDVNVLA 116
+ A + ++ +L+NNAG + P PL I + +NV A
Sbjct: 56 ---DAAAAAAWLAGDLLAAFVDGASRVLLINNAGTVEPIGPLATLDAAAIARAVGLNVAA 112
>gnl|CDD|187582 cd05274, KR_FAS_SDR_x, ketoreductase (KR) and fatty acid synthase
(FAS), complex (x) SDRs. Ketoreductase, a module of the
multidomain polyketide synthase (PKS), has 2 subdomains,
each corresponding to a SDR family monomer. The
C-terminal subdomain catalyzes the NADPH-dependent
reduction of the beta-carbonyl of a polyketide to a
hydroxyl group, a step in the biosynthesis of
polyketides, such as erythromycin. The N-terminal
subdomain, an interdomain linker, is a truncated
Rossmann fold which acts to stabilizes the catalytic
subdomain. Unlike typical SDRs, the isolated domain does
not oligomerize but is composed of 2 subdomains, each
resembling an SDR monomer. The active site resembles
that of typical SDRs, except that the usual positions of
the catalytic Asn and Tyr are swapped, so that the
canonical YXXXK motif changes to YXXXN. Modular PKSs are
multifunctional structures in which the makeup
recapitulates that found in (and may have evolved from)
FAS. In some instances, such as porcine FAS, an enoyl
reductase (ER) module is inserted between the
sub-domains. Fatty acid synthesis occurs via the
stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consist of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthase
uses a dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-KR, forming beta-hydroxyacyl-ACP, which is in turn
dehydrated by dehydratase to a beta-enoyl intermediate,
which is reduced by NADP-dependent beta-ER. Polyketide
synthesis also proceeds via the addition of 2-carbon
units as in fatty acid synthesis. The complex SDR
NADP-binding motif, GGXGXXG, is often present, but is
not strictly conserved in each instance of the module.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 375
Score = 35.1 bits (81), Expect = 0.005
Identities = 16/111 (14%), Positives = 38/111 (34%), Gaps = 5/111 (4%)
Query: 9 LTGAGNGIGRELAKQFVQH---KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
+TG G+G +A+ + L+ +L G + + + DV++
Sbjct: 155 ITGGLGGLGLLVARWLAARGARHLVLLSRRGPAPRAAARAALLRAGGAR-VSVVRCDVTD 213
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ + ++ + +++ AG++ L E P V
Sbjct: 214 PAALAALLAELAAGGP-LAGVIHAAGVLRDALLAELTPAAFAAVLAAKVAG 263
>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 = 34.9 bits (81), Expect = 0.006
Identities = 17/65 (26%), Positives = 29/65 (44%), Gaps = 2/65 (3%)
Query: 10 TGAGNGIGRELAKQFVQ-HKVTLVCWDIDEKGNNETKQMLEEQGYK-NIHTYKLDVSNRE 67
TG IG EL +Q ++ L+ +D DE +E + L + + DV ++E
Sbjct: 8 TGGAGSIGSELVRQILKFGPKKLIVFDRDENKLHELVRELRSRFPHDKLRFIIGDVRDKE 67
Query: 68 EVLRV 72
+ R
Sbjct: 68 RLRRA 72
>gnl|CDD|180774 PRK06953, PRK06953, short chain dehydrogenase; Provisional.
Length = 222
Score = 34.7 bits (80), Expect = 0.007
Identities = 30/112 (26%), Positives = 44/112 (39%), Gaps = 19/112 (16%)
Query: 11 GAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
GA GIGRE +Q+ +V I + L+ G LDV++
Sbjct: 8 GASRGIGREFVRQYRADGWRV------IATARDAAALAALQALG---AEALALDVADPAS 58
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFD----VNVLA 116
V +A K+ E + + V AG+ P E + R+ FD NVL
Sbjct: 59 VAGLAWKLDGEALDAAVYV--AGVY--GPRTEGVEPITREDFDAVMHTNVLG 106
>gnl|CDD|236342 PRK08862, PRK08862, short chain dehydrogenase; Provisional.
Length = 227
Score = 34.3 bits (79), Expect = 0.008
Identities = 22/96 (22%), Positives = 48/96 (50%), Gaps = 2/96 (2%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+T AG+ +GR ++ F + TL+ D D+ +T + N+++++L ++E
Sbjct: 10 ITSAGSVLGRTISCHFARLGATLILCDQDQSALKDTYEQCSALT-DNVYSFQLKDFSQES 68
Query: 69 VLRVADKVRKEVGEV-TILVNNAGIMPCKPLNEQKP 103
+ + D + ++ +LVNN P L +++P
Sbjct: 69 IRHLFDAIEQQFNRAPDVLVNNWTSSPLPSLFDEQP 104
>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 = 34.5 bits (79), Expect = 0.009
Identities = 21/86 (24%), Positives = 35/86 (40%), Gaps = 4/86 (4%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TGA GIGR +A + ++ + ++ QG N + DV++R
Sbjct: 3 VTGASRGIGRAIANRLAADGFEICVHYHS-GRSDAESVVSAIQAQG-GNARLLQFDVADR 60
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGI 92
+ + E G +V NAGI
Sbjct: 61 VACRTLLEADIAEHGAYYGVVLNAGI 86
>gnl|CDD|187654 cd08951, DR_C-13_KR_SDR_c_like, daunorubicin C-13 ketoreductase
(KR), classical (c)-like SDRs. Daunorubicin is a
clinically important therapeutic compound used in some
cancer treatments. Daunorubicin C-13 ketoreductase is
member of the classical SDR family with a canonical
glycine-rich NAD(P)-binding motif, but lacking a
complete match to the active site tetrad characteristic
of this group. The critical Tyr, plus the Lys and
upstream Asn are present, but the catalytic Ser is
replaced, generally by Gln. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 260
Score = 34.0 bits (78), Expect = 0.013
Identities = 27/108 (25%), Positives = 47/108 (43%), Gaps = 6/108 (5%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG+ +G+G A+ + +V +K + K I D+S+ E
Sbjct: 12 ITGSSDGLGLAAARTLLHQGHEVVLHARSQKRAADAKAACPGAAGVLIG----DLSSLAE 67
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++AD+V +G +++NAGI+ P + I VNVLA
Sbjct: 68 TRKLADQV-NAIGRFDAVIHNAGILS-GPNRKTPDTGIPAMVAVNVLA 113
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 33.5 bits (77), Expect = 0.015
Identities = 22/85 (25%), Positives = 37/85 (43%), Gaps = 8/85 (9%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEKGN----NETKQMLEEQGYKNIHTYKLDVSN 65
TG+ GIG + AK +V ++ + N+ +E G + D+++
Sbjct: 12 TGSSRGIGADTAKILAGAGAHVV---VNYRQKAPRANKVVAEIEAAGGRAS-AVGADLTD 67
Query: 66 REEVLRVADKVRKEVGEVTILVNNA 90
E V + D R+E G + LV NA
Sbjct: 68 EESVAALMDTAREEFGGLDALVLNA 92
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 33.4 bits (77), Expect = 0.018
Identities = 22/94 (23%), Positives = 33/94 (35%), Gaps = 7/94 (7%)
Query: 3 TNNPFQ-----LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIH 57
N F +TGA GIGR +A + +V D E +E L G +
Sbjct: 2 MNQRFAGKVVVVTGAAQGIGRGVALRAAAEGARVVLVDRSEL-VHEVAAELRAAGGE-AL 59
Query: 58 TYKLDVSNREEVLRVADKVRKEVGEVTILVNNAG 91
D+ + G + +L+NN G
Sbjct: 60 ALTADLETYAGAQAAMAAAVEAFGRIDVLINNVG 93
>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 = 33.3 bits (76), Expect = 0.021
Identities = 19/92 (20%), Positives = 40/92 (43%), Gaps = 9/92 (9%)
Query: 9 LTGAGNGIGRELAKQFVQ----HKVTLVCWDIDEKGNNETKQMLE-EQGYKNIHTYKLDV 63
+TGA G GR +A++ + LV +++ + K + E+ + LD+
Sbjct: 5 VTGASRGFGRTIAQELAKCLKSPGSVLVLSARNDEALRQLKAEIGAERSGLRVVRVSLDL 64
Query: 64 SNREEVLR----VADKVRKEVGEVTILVNNAG 91
+ + + + R + + +L+NNAG
Sbjct: 65 GAEAGLEQLLKALRELPRPKGLQRLLLINNAG 96
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 33.2 bits (76), Expect = 0.024
Identities = 22/88 (25%), Positives = 44/88 (50%), Gaps = 14/88 (15%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKV--TLVCWD-IDEKGNNETKQMLEEQGYKNIHTYKLDV 63
+TGA +G GR + ++ + +V T+ D +D+ L+ + + +LDV
Sbjct: 7 ITGASSGFGRGMTERLLARGDRVAATVRRPDALDD---------LKARYGDRLWVLQLDV 57
Query: 64 SNREEVLRVADKVRKEVGEVTILVNNAG 91
++ V V D+ +G + ++V+NAG
Sbjct: 58 TDSAAVRAVVDRAFAALGRIDVVVSNAG 85
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 32.8 bits (75), Expect = 0.027
Identities = 23/125 (18%), Positives = 46/125 (36%), Gaps = 5/125 (4%)
Query: 1 TLTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCW----DIDEKGNNETKQMLEEQGYKNI 56
+L + G +G +A+ V + ET ++ G K +
Sbjct: 5 SLKGKVVLIAGGAKNLGGLIARDLAAQGAKAVAIHYNSAASKADAEETVAAVKAAGAKAV 64
Query: 57 HTYKLDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++ D++ V ++ D + G I +N G + KP+ E + F VN +
Sbjct: 65 -AFQADLTTAAAVEKLFDDAKAAFGRPDIAINTVGKVLKKPIVEISEAEYDEMFAVNSKS 123
Query: 117 HFWVL 121
F+ +
Sbjct: 124 AFFFI 128
>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 = 0.030
Identities = 20/110 (18%), Positives = 38/110 (34%), Gaps = 26/110 (23%)
Query: 11 GAGNGIGRELAKQFVQHK--VTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
GA IG +A+ H V G + G Y++D+++
Sbjct: 5 GATGTIGLAVAQLLSAHGHEVITA-------GRS--------SG-----DYQVDITDEAS 44
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHF 118
+ + ++VG +V+ AG PL E ++ + +L
Sbjct: 45 I----KALFEKVGHFDAIVSTAGDAEFAPLAELTDADFQRGLNSKLLGQI 90
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 32.7 bits (74), Expect = 0.038
Identities = 29/119 (24%), Positives = 51/119 (42%), Gaps = 6/119 (5%)
Query: 9 LTGAGNGIGRELAKQFVQH-KVTLVCWDIDEKGNNETKQMLEEQGYK--NIHTYKLDVSN 65
+TGA GIGR +AK+ + + + ++ ET ++ G +I +
Sbjct: 9 VTGASRGIGRAIAKRLANDGALVAIHYGNRKEEAEETVYEIQSNGGSAFSIGANLESLHG 68
Query: 66 REEVLRVAD-KVRKEVGEVT--ILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
E + D +++ G IL+NNAGI P + E + VN A F+++
Sbjct: 69 VEALYSSLDNELQNRTGSTKFDILINNAGIGPGAFIEETTEQFFDRMVSVNAKAPFFII 127
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 31.8 bits (73), Expect = 0.062
Identities = 20/111 (18%), Positives = 44/111 (39%), Gaps = 6/111 (5%)
Query: 6 PFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
P +TGAG IG LA + ++ + + + L + G + D S
Sbjct: 4 PILITGAGQRIGLALAWHLLAQGQPVI---VSYRTHYPAIDGLRQAG---AQCIQADFST 57
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
++ D++++ + +++NA + DV+ + ++V A
Sbjct: 58 NAGIMAFIDELKQHTDGLRAIIHNASDWLAEKPGAPLADVLARMMQIHVNA 108
>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 = 31.1 bits (71), Expect = 0.11
Identities = 20/109 (18%), Positives = 38/109 (34%), Gaps = 28/109 (25%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA +GR L + + ++ G +KLD+++ +
Sbjct: 4 ITGATGMLGRALVRLLKERGYEVIGT-----------------GRSRASLFKLDLTDPDA 46
Query: 69 VLRVADKVRKEVGEVTILVNNAGIMPCKPLN-EQKPDVIRKTFDVNVLA 116
V + +++N A + E P+ + VNVLA
Sbjct: 47 VEEAIRDYKP-----DVIINCAAYT--RVDKCESDPE---LAYRVNVLA 85
>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 = 30.9 bits (70), Expect = 0.13
Identities = 28/118 (23%), Positives = 46/118 (38%), Gaps = 9/118 (7%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L +TG +G+GR + +FV + D G E LE + +
Sbjct: 3 LKGEVVLVTGGASGLGRAIVDRFVAEGARVAVLDKSAAGLQE----LEAAHGDAVVGVEG 58
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFD----VNV 114
DV + ++ + G++ L+ NAGI L + D I + FD +NV
Sbjct: 59 DVRSLDDHKEAVARCVAAFGKIDCLIPNAGIWDYSTALVDIPDDRIDEAFDEVFHINV 116
>gnl|CDD|166421 PLN02780, PLN02780, ketoreductase/ oxidoreductase.
Length = 320
Score = 31.0 bits (70), Expect = 0.15
Identities = 28/111 (25%), Positives = 53/111 (47%), Gaps = 7/111 (6%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDID-EKGNNETKQMLEEQGYKNIHTYKLDVSN-- 65
+TG +GIG+ A Q + + LV + +K + + + + I T +D S
Sbjct: 58 VTGPTDGIGKGFAFQLARKGLNLVLVARNPDKLKDVSDSIQSKYSKTQIKTVVVDFSGDI 117
Query: 66 REEVLRVADKVRKEVGEVTILVNNAGI-MPC-KPLNEQKPDVIRKTFDVNV 114
E V R+ + + E +V +L+NN G+ P + +E ++++ VNV
Sbjct: 118 DEGVKRIKETI--EGLDVGVLINNVGVSYPYARFFHEVDEELLKNLIKVNV 166
>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 = 30.7 bits (70), Expect = 0.18
Identities = 15/81 (18%), Positives = 31/81 (38%), Gaps = 16/81 (19%)
Query: 11 GAGNGIGRELAKQFVQH---KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
GAG G+G+ +A +H ++T+ EK + + + +D N E
Sbjct: 5 GAG-GVGQGVAPLLARHGDLEITVADRS-LEKA----QALAAPKLGLRFIAIAVDADNYE 58
Query: 68 EVLRVADKVRKEVGEVTILVN 88
+ + E +++N
Sbjct: 59 A-------LVALLKEGDLVIN 72
>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 = 0.22
Identities = 30/118 (25%), Positives = 49/118 (41%), Gaps = 2/118 (1%)
Query: 2 LTNNPFQLTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKL 61
L N +T + +GIG +A++ Q +V ++ + L+ +G T
Sbjct: 8 LANKVALVTASTDGIGLAIARRLAQDGAHVVVSSRKQQNVDRAVATLQGEGLSVTGTV-C 66
Query: 62 DVSNREEVLRVADKVRKEVGEVTILVNNAGIMP-CKPLNEQKPDVIRKTFDVNVLAHF 118
V E+ R+ G V ILV+NA + P + + +V K DVNV A
Sbjct: 67 HVGKAEDRERLVATAVNLHGGVDILVSNAAVNPFFGNILDSTEEVWDKILDVNVKATA 124
>gnl|CDD|236000 PRK07360, PRK07360, FO synthase subunit 2; Reviewed.
Length = 371
Score = 30.2 bits (69), Expect = 0.24
Identities = 15/43 (34%), Positives = 22/43 (51%), Gaps = 8/43 (18%)
Query: 62 DVSNREEVLRVADKVRKE-VGE-VTILVN------NAGIMPCK 96
+ E+L +AD++RKE VG+ VT +VN N C
Sbjct: 33 EPRRIFEILELADRLRKEQVGDTVTYVVNRNINFTNICEGHCG 75
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 30.2 bits (68), Expect = 0.26
Identities = 23/84 (27%), Positives = 39/84 (46%), Gaps = 4/84 (4%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TGA GIG +A + +V D+D + ++ + L E N +DV++ +
Sbjct: 15 VTGAARGIGLGIAAWLIAEGWQVVLADLDRERGSKVAKALGE----NAWFIAMDVADEAQ 70
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
V +V + G + LV NA I
Sbjct: 71 VAAGVAEVLGQFGRLDALVCNAAI 94
>gnl|CDD|224484 COG1568, COG1568, Predicted methyltransferases [General function
prediction only].
Length = 354
Score = 29.7 bits (67), Expect = 0.33
Identities = 12/31 (38%), Positives = 18/31 (58%)
Query: 35 DIDEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
DIDE+ +++ EE GY NI + D+ N
Sbjct: 182 DIDERLIKFIEKVAEELGYNNIEAFVFDLRN 212
>gnl|CDD|236124 PRK07889, PRK07889, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 256
Score = 29.5 bits (67), Expect = 0.34
Identities = 13/34 (38%), Positives = 22/34 (64%)
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMP 94
LDV+N E + +AD+VR+ V + +V++ G P
Sbjct: 64 LDVTNEEHLASLADRVREHVDGLDGVVHSIGFAP 97
>gnl|CDD|236229 PRK08303, PRK08303, short chain dehydrogenase; Provisional.
Length = 305
Score = 29.2 bits (66), Expect = 0.47
Identities = 13/47 (27%), Positives = 27/47 (57%), Gaps = 1/47 (2%)
Query: 43 ETKQMLEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEVTILVNN 89
ET +++ G + I ++D E+V + +++ +E G + ILVN+
Sbjct: 57 ETAELVTAAGGRGI-AVQVDHLVPEQVRALVERIDREQGRLDILVND 102
>gnl|CDD|236056 PRK07576, PRK07576, short chain dehydrogenase; Provisional.
Length = 264
Score = 29.2 bits (66), Expect = 0.59
Identities = 27/115 (23%), Positives = 48/115 (41%), Gaps = 7/115 (6%)
Query: 10 TGAGNGIGRELAKQFVQH--KVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
G +GI +A+ F + V + EK + Q L++ G + + DV +
Sbjct: 15 VGGTSGINLGIAQAFARAGANVAVASRSQ-EKVDAAVAQ-LQQAGPEGL-GVSADVRDYA 71
Query: 68 EVLRVADKVRKEVGEVTILVNN-AGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVL 121
V ++ E G + +LV+ AG P P + + D+++L F VL
Sbjct: 72 AVEAAFAQIADEFGPIDVLVSGAAGNFPA-PAAGMSANGFKTVVDIDLLGTFNVL 125
>gnl|CDD|236016 PRK07424, PRK07424, bifunctional sterol desaturase/short chain
dehydrogenase; Validated.
Length = 406
Score = 29.3 bits (66), Expect = 0.60
Identities = 27/106 (25%), Positives = 47/106 (44%), Gaps = 16/106 (15%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQML-EEQGYKNIHTYKLDVSNRE 67
+TGA +G+ L K+ Q +V + + T ++ E+ K +H V
Sbjct: 183 VTGASGTLGQALLKELHQQGAKVVA--LTSNSDKITLEINGEDLPVKTLH---WQVGQEA 237
Query: 68 EVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVN 113
+A+ + K V IL+ N GI E+ P+ I K+++VN
Sbjct: 238 A---LAELLEK----VDILIINHGI---NVHGERTPEAINKSYEVN 273
>gnl|CDD|132589 TIGR03550, F420_cofG, 7,8-didemethyl-8-hydroxy-5-deazariboflavin
synthase, CofG subunit. This model represents either a
subunit or a domain, depending on whether or not the
genes are fused, of a bifunctional protein that
completes the synthesis of
7,8-didemethyl-8-hydroxy-5-deazariboflavin, or FO. FO is
the chromophore of coenzyme F(420), involved in
methanogenesis in methanogenic archaea but found in
certain other lineages as well. The chromophore also
occurs as a cofactor in DNA photolyases in Cyanobacteria
[Biosynthesis of cofactors, prosthetic groups, and
carriers, Other].
Length = 322
Score = 28.8 bits (65), Expect = 0.68
Identities = 13/52 (25%), Positives = 21/52 (40%), Gaps = 13/52 (25%)
Query: 43 ETKQMLEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEVTILVN-NAGIM 93
E ++ L E GY + Y ++ E L E +L + N G+M
Sbjct: 69 EAREWLAEMGYDSTLEYLRELC--ELALE----------ETGLLPHTNPGVM 108
>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 = 27.9 bits (63), Expect = 1.2
Identities = 16/59 (27%), Positives = 25/59 (42%), Gaps = 11/59 (18%)
Query: 61 LDVSNREEVLRVADKVRKEVG--EV-TILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
LDV + EE L +AD + V +V T L G + + E +++ F V
Sbjct: 6 LDVPDLEEALELADALGDSVDIIKVGTELFLAEGP---EGVKE-----LKELFGFPVFL 56
>gnl|CDD|223528 COG0451, WcaG, Nucleoside-diphosphate-sugar epimerases [Cell
envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 314
Score = 28.0 bits (62), Expect = 1.4
Identities = 22/110 (20%), Positives = 39/110 (35%), Gaps = 21/110 (19%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+TG IG L ++ + H V + D + + LD+++R
Sbjct: 5 VTGGAGFIGSHLVERLLAAGHDVRGLDRLRDGLDPLLS----------GVEFVVLDLTDR 54
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLA 116
+ + D++ K V + I + A N P + DVNV
Sbjct: 55 D----LVDELAKGVPDAVI--HLAAQSSVPDSNASDPA---EFLDVNVDG 95
>gnl|CDD|180669 PRK06720, PRK06720, hypothetical protein; Provisional.
Length = 169
Score = 27.6 bits (61), Expect = 1.6
Identities = 20/84 (23%), Positives = 36/84 (42%), Gaps = 1/84 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREE 68
+TG G GIGR A + ++ DID++ T + + G + + D+ + +
Sbjct: 21 VTGGGIGIGRNTALLLAKQGAKVIVTDIDQESGQATVEEITNLGGEALFVSY-DMEKQGD 79
Query: 69 VLRVADKVRKEVGEVTILVNNAGI 92
RV + +L NAG+
Sbjct: 80 WQRVISITLNAFSRIDMLFQNAGL 103
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 27.8 bits (62), Expect = 1.6
Identities = 18/85 (21%), Positives = 40/85 (47%), Gaps = 1/85 (1%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLV-CWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNRE 67
++G GIG+ + +F Q V + ++ + + N+ + LE++ Y L++ E
Sbjct: 13 ISGGTRGIGKAIVYEFAQSGVNIAFTYNSNVEEANKIAEDLEQKYGIKAKAYPLNILEPE 72
Query: 68 EVLRVADKVRKEVGEVTILVNNAGI 92
+ K+ ++ V ++NA I
Sbjct: 73 TYKELFKKIDEDFDRVDFFISNAII 97
>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 = 27.8 bits (62), Expect = 1.6
Identities = 25/124 (20%), Positives = 48/124 (38%), Gaps = 22/124 (17%)
Query: 9 LTGAGNGIGRELAKQFVQ--HKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNR 66
+ GA IGR LA++ ++ H+VTL+ N + L ++ + + + D
Sbjct: 3 ILGATGFIGRALARELLEQGHEVTLL-------VRNTKR--LSKEDQEPVAVVEGD---- 49
Query: 67 EEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN-EQKPDVIRKTFDV---NVLAHFWVLA 122
LR D + V V ++++ AG E + R + + HF ++
Sbjct: 50 ---LRDLDSLSDAVQGVDVVIHLAGAPRDTRDFCEVDVEGTRNVLEAAKEAGVKHFIFIS 106
Query: 123 HFWV 126
Sbjct: 107 SLGA 110
>gnl|CDD|222415 pfam13847, Methyltransf_31, Methyltransferase domain. This
family appears to be have methyltransferase activity.
Length = 151
Score = 27.4 bits (61), Expect = 1.9
Identities = 15/57 (26%), Positives = 27/57 (47%), Gaps = 4/57 (7%)
Query: 11 GAGNG-IGRELA-KQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSN 65
G G G + LA K +V + DI E+ + K+ ++ GY+N+ + D+
Sbjct: 11 GCGTGYLTFILAEKLGPGAEVVGI--DISEEAIEKAKENAKKLGYENVEFIQGDIEE 65
>gnl|CDD|187568 cd05258, CDP_TE_SDR_e, CDP-tyvelose 2-epimerase, extended (e)
SDRs. CDP-tyvelose 2-epimerase is a tetrameric SDR
that catalyzes the conversion of CDP-D-paratose to
CDP-D-tyvelose, the last step in tyvelose biosynthesis.
This subgroup is a member of the extended SDR
subfamily, with a characteristic active site tetrad and
NAD-binding motif. 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 = 337
Score = 27.6 bits (62), Expect = 2.0
Identities = 17/68 (25%), Positives = 31/68 (45%), Gaps = 8/68 (11%)
Query: 10 TGAGNGIGRELAKQFVQHKVTLVCWDIDEK----GNNE-TKQMLEEQGYKNIHTYKLDVS 64
TG IG LA+ F++ ++ +D + GN K E+ G + +H D+
Sbjct: 6 TGGAGFIGSNLARFFLKQGWEVIGFDNLMRRGSFGNLAWLKANREDGGVRFVHG---DIR 62
Query: 65 NREEVLRV 72
NR ++ +
Sbjct: 63 NRNDLEDL 70
>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 = 27.4 bits (61), Expect = 2.4
Identities = 13/39 (33%), Positives = 21/39 (53%)
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLN 99
+D+SN V A +++K + L NAGIMP ++
Sbjct: 66 VDLSNMVSVFAAAKELKKRYPRLDYLYLNAGIMPNPGID 104
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 27.4 bits (61), Expect = 2.4
Identities = 12/55 (21%), Positives = 27/55 (49%)
Query: 61 LDVSNREEVLRVADKVRKEVGEVTILVNNAGIMPCKPLNEQKPDVIRKTFDVNVL 115
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 = 2.5
Identities = 17/47 (36%), Positives = 22/47 (46%), Gaps = 3/47 (6%)
Query: 61 LDVSNREEVLRVADKVRKEVGEV---TILVNNAGIMPCKPLNEQKPD 104
LD ++ E R ++ V V TIL N G+ K L EQ PD
Sbjct: 10 LDHTSLEAAQRDVTLLKDHVDIVEAGTILCLNEGLGAVKALREQCPD 56
>gnl|CDD|216949 pfam02254, TrkA_N, TrkA-N domain. This domain is found in a wide
variety of proteins. These protein include potassium
channels, phosphoesterases, and various other
transporters. This domain binds to NAD.
Length = 116
Score = 26.4 bits (59), Expect = 2.8
Identities = 17/64 (26%), Positives = 28/64 (43%), Gaps = 9/64 (14%)
Query: 11 GAGNGIGRELAKQFVQHKVTLVCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVL 70
G G +GR LA++ + +V D D + +EE + + D ++ EEVL
Sbjct: 5 GYGR-VGRSLAEELREGGPDVVVIDKDPE-------RVEELREEGVPVVVGDATD-EEVL 55
Query: 71 RVAD 74
A
Sbjct: 56 EEAG 59
>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 = 27.2 bits (61), Expect = 2.8
Identities = 14/40 (35%), Positives = 22/40 (55%), Gaps = 8/40 (20%)
Query: 65 NREEVLRVADKVRKE-VGE-VTILVN------NAGIMPCK 96
N E+ R+AD++R++ VG+ VT +VN N C
Sbjct: 15 NLFELFRLADELRRDIVGDTVTYVVNRNINFTNVCYGGCG 54
>gnl|CDD|225370 COG2813, RsmC, 16S RNA G1207 methylase RsmC [Translation, ribosomal
structure and biogenesis].
Length = 300
Score = 26.9 bits (60), Expect = 3.0
Identities = 13/28 (46%), Positives = 18/28 (64%), Gaps = 3/28 (10%)
Query: 11 GAGNG-IGRELAKQFVQHKVTLVCWDID 37
G G G +G LAK+ Q K+TLV D++
Sbjct: 166 GCGYGVLGLVLAKKSPQAKLTLV--DVN 191
>gnl|CDD|238957 cd01999, Argininosuccinate_Synthase, Argininosuccinate synthase.
The Argininosuccinate synthase is a urea cycle enzyme
that catalyzes the penultimate step in arginine
biosynthesis: the ATP-dependent ligation of citrulline
to aspartate to form argininosuccinate, AMP and
pyrophosphate . In humans, a defect in the AS gene
causes citrullinemia, a genetic disease characterized
by severe vomiting spells and mental retardation. AS is
a homotetrameric enzyme of chains of about 400
amino-acid residues. An arginine seems to be important
for the enzyme's catalytic mechanism. The sequences of
AS from various prokaryotes, archaebacteria and
eukaryotes show significant similarity.
Length = 385
Score = 27.1 bits (61), Expect = 3.3
Identities = 8/34 (23%), Positives = 16/34 (47%)
Query: 48 LEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVG 81
L+E+G + DV EE + ++ ++G
Sbjct: 18 LKEKGGYEVIAVTADVGQPEEEIEAIEEKALKLG 51
>gnl|CDD|99914 cd05531, POLBc_B2, DNA polymerase type-B B2 subfamily catalytic
domain. Archaeal proteins that are involved in DNA
replication are similar to those from eukaryotes. Some
archaeal members also possess multiple family B DNA
polymerases (B1, B2 and B3). So far there is no specific
function(s) has been assigned for different members of
the archaea type B DNA polymerases. Phylogenetic
analyses of eubacterial, archaeal, and eukaryotic family
B DNA polymerases are support independent gene
duplications during the evolution of archaeal and
eukaryotic family B DNA polymerases.
Length = 352
Score = 26.5 bits (59), Expect = 5.0
Identities = 9/41 (21%), Positives = 21/41 (51%), Gaps = 2/41 (4%)
Query: 43 ETKQMLEEQGYKNIH--TYKLDVSNREEVLRVADKVRKEVG 81
K++ EE G++ +H L + R ++ +A ++ + G
Sbjct: 137 RAKEIAEEMGFRVLHGIVDSLWIQGRGDIEELAREIEERTG 177
>gnl|CDD|236422 PRK09234, fbiC, FO synthase; Reviewed.
Length = 843
Score = 26.5 bits (59), Expect = 5.1
Identities = 12/24 (50%), Positives = 18/24 (75%), Gaps = 2/24 (8%)
Query: 67 EEVLRVADKVRKE-VG-EVTILVN 88
E V R+AD +R++ VG +VT +VN
Sbjct: 504 EAVCRLADDLRRDVVGDDVTYVVN 527
>gnl|CDD|233555 TIGR01740, pyrF, orotidine 5'-phosphate decarboxylase, subfamily 1.
This model represents orotidine 5'-monophosphate
decarboxylase, the PyrF protein of pyrimidine nucleotide
biosynthesis. In many eukaryotes, the region hit by this
model is part of a multifunctional protein [Purines,
pyrimidines, nucleosides, and nucleotides, Pyrimidine
ribonucleotide biosynthesis].
Length = 214
Score = 26.2 bits (58), Expect = 5.2
Identities = 14/57 (24%), Positives = 27/57 (47%), Gaps = 5/57 (8%)
Query: 61 LDVSNREEVLRVADKVRKEVGEVTI---LVNNAGIMPCKPLNEQKPDVI--RKTFDV 112
LDV+ +EE L +AD + +E+ + + L+ + G L + + K D+
Sbjct: 5 LDVTTKEEALDLADSLGEEICVIKVGIDLLLDGGEKIIDELAKLNKLIFLDLKFADI 61
>gnl|CDD|143302 cd05894, Ig_C5_MyBP-C, C5 immunoglobulin (Ig) domain of cardiac
myosin binding protein C (MyBP-C). Ig_C5_MyBP_C : the
C5 immunoglobulin (Ig) domain of cardiac myosin binding
protein C (MyBP-C). MyBP_C consists of repeated
domains, Ig and fibronectin type 3, and various
linkers. Three isoforms of MYBP_C exist and are
included in this group: cardiac(c), and fast and slow
skeletal muscle (s) MyBP_C. cMYBP_C has insertions
between and inside domains and an additional
cardiac-specific Ig domain at the N-terminus. For
cMYBP_C an interaction has been demonstrated between
this C5 domain and the Ig C8 domain.
Length = 86
Score = 25.6 bits (56), Expect = 5.2
Identities = 13/51 (25%), Positives = 25/51 (49%)
Query: 32 VCWDIDEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGE 82
V W +K ET+ + + YK++ ++ ++ + RE+ V VGE
Sbjct: 27 VTWSRGDKAFTETEGRVRVESYKDLSSFVIEGAEREDEGVYTITVTNPVGE 77
>gnl|CDD|236308 PRK08594, PRK08594, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 257
Score = 26.2 bits (58), Expect = 5.3
Identities = 9/47 (19%), Positives = 23/47 (48%)
Query: 37 DEKGNNETKQMLEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEV 83
E+ E +++ + + DV++ EE+ + +++EVG +
Sbjct: 42 GERLEKEVRELADTLEGQESLLLPCDVTSDEEITACFETIKEEVGVI 88
>gnl|CDD|129582 TIGR00491, aIF-2, translation initiation factor aIF-2/yIF-2. This
model describes archaeal and eukaryotic orthologs of
bacterial IF-2. Like IF-2, it helps convey the initiator
tRNA to the ribosome, although the initiator is
N-formyl-Met in bacteria and Met here. This protein is
not closely related to the subunits of eIF-2 of
eukaryotes, which is also involved in the initiation of
translation. The aIF-2 of Methanococcus jannaschii
contains a large intein interrupting a region of very
strongly conserved sequence very near the amino end; the
alignment generated by This model does not correctly
align the sequences from Methanococcus jannaschii and
Pyrococcus horikoshii in this region [Protein synthesis,
Translation factors].
Length = 590
Score = 26.3 bits (58), Expect = 5.7
Identities = 10/31 (32%), Positives = 19/31 (61%)
Query: 63 VSNREEVLRVADKVRKEVGEVTILVNNAGIM 93
V EE+ +V +++ KEV E+ I + G++
Sbjct: 325 VVTDEEIEKVKEEILKEVEEIKIDTDEEGVV 355
>gnl|CDD|218026 pfam04321, RmlD_sub_bind, RmlD substrate binding domain.
L-rhamnose is a saccharide required for the virulence
of some bacteria. Its precursor, dTDP-L-rhamnose, is
synthesised by four different enzymes the final one of
which is RmlD. The RmlD substrate binding domain is
responsible for binding a sugar nucleotide.
Length = 284
Score = 26.0 bits (58), Expect = 5.9
Identities = 10/34 (29%), Positives = 16/34 (47%), Gaps = 5/34 (14%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLV-----CWDID 37
+TGA +GREL + + V +V D+
Sbjct: 3 VTGANGQLGRELTRLLAERGVEVVALDRPELDLT 36
>gnl|CDD|221644 pfam12574, 120_Rick_ant, 120 KDa Rickettsia surface antigen.
This domain family is found in bacteria, and is
approximately 40 amino acids in length. This family is
a Rickettsia surface antigen of 120 KDa which may be
used as an antigen for immune response against the
bacterial species.
Length = 253
Score = 26.0 bits (57), Expect = 6.2
Identities = 12/21 (57%), Positives = 13/21 (61%), Gaps = 3/21 (14%)
Query: 41 NNETKQMLEE---QGYKNIHT 58
N ETK+ LE GYKNIH
Sbjct: 45 NPETKKKLEGIEIAGYKNIHG 65
>gnl|CDD|187589 cd05328, 3alpha_HSD_SDR_c, alpha hydroxysteroid dehydrogenase
(3alpha_HSD), classical (c) SDRs. Bacterial
3-alpha_HSD, which catalyzes the NAD-dependent
oxidoreduction of hydroxysteroids, is a dimeric member
of the classical SDR family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 25.9 bits (57), Expect = 6.2
Identities = 10/30 (33%), Positives = 16/30 (53%)
Query: 9 LTGAGNGIGRELAKQFVQHKVTLVCWDIDE 38
+TGA +GIG A+ T++ D+ E
Sbjct: 4 ITGAASGIGAATAELLEDAGHTVIGIDLRE 33
>gnl|CDD|227243 COG4906, COG4906, Predicted membrane protein [Function unknown].
Length = 696
Score = 26.3 bits (58), Expect = 6.5
Identities = 8/44 (18%), Positives = 15/44 (34%), Gaps = 9/44 (20%)
Query: 93 MPCKPL-----NEQKPDVIRKTFDVNVLAHFWVLAHFWVSNLSG 131
+ PL K F ++ F+V+ W + +G
Sbjct: 363 VALIPLLVRVMKRLKVP----DFAASLAVLFFVVVFAWYAYATG 402
>gnl|CDD|173864 cd08499, PBP2_Ylib_like, The substrate-binding component of an
uncharacterized ABC-type peptide import system Ylib
contains the type 2 periplasmic binding fold. This
family represents the periplasmic substrate-binding
component of an uncharacterized ATP-binding cassette
(ABC)-type peptide transport system YliB. Although the
ligand specificity of Ylib protein is not known, it
shares significant sequence similarity to the ABC-type
dipeptide and oligopeptide binding proteins. Most of
other periplasmic binding proteins are comprised of only
two globular subdomains corresponding to domains I and
III of the dipeptide/oligopeptide binding proteins. The
structural topology of these domains is most similar to
that of the type 2 periplasmic binding proteins (PBP2),
which are responsible for the uptake of a variety of
substrates such as phosphate, sulfate, polysaccharides,
lysine/arginine/ornithine, and histidine. The PBP2 bind
their ligand in the cleft between these domains in a
manner resembling a Venus flytrap. After binding their
specific ligand with high affinity, they can interact
with a cognate membrane transport complex comprised of
two integral membrane domains and two cytoplasmically
located ATPase domains. This interaction triggers the
ligand translocation across the cytoplasmic membrane
energized by ATP hydrolysis. Besides transport
proteins, the PBP2 superfamily includes the
ligand-binding domains from ionotropic glutamate
receptors, LysR-type transcriptional regulators, and
unorthodox sensor proteins involved in signal
transduction.
Length = 474
Score = 26.0 bits (58), Expect = 8.0
Identities = 10/47 (21%), Positives = 27/47 (57%)
Query: 42 NETKQMLEEQGYKNIHTYKLDVSNREEVLRVADKVRKEVGEVTILVN 88
+ K++L E GY + L ++ E +++A+ +++++ ++ I V
Sbjct: 304 EKAKELLAEAGYPDGFETTLWTNDNRERIKIAEFIQQQLAQIGIDVE 350
>gnl|CDD|222066 pfam13353, Fer4_12, 4Fe-4S single cluster domain. This family
includes proteins containing domains which bind to
iron-sulfur clusters. Members include bacterial
ferredoxins, various dehydrogenases, and various
reductases. The structure of the domain is an
alpha-antiparallel beta sandwich.
Length = 140
Score = 25.2 bits (56), Expect = 8.0
Identities = 7/26 (26%), Positives = 12/26 (46%)
Query: 61 LDVSNREEVLRVADKVRKEVGEVTIL 86
L N E +L + +V++E I
Sbjct: 64 LLPENAEALLELVKRVKEEFPNKDIW 89
>gnl|CDD|237079 PRK12367, PRK12367, short chain dehydrogenase; Provisional.
Length = 245
Score = 25.7 bits (57), Expect = 8.0
Identities = 13/40 (32%), Positives = 21/40 (52%), Gaps = 3/40 (7%)
Query: 85 ILVNNAGIMPCKPLNEQKPDVIRKTFDVNVLAHFWVLAHF 124
+L+ N GI P Q P+ I K ++N L+ + +L F
Sbjct: 82 VLILNHGI---NPGGRQDPENINKALEINALSSWRLLELF 118
>gnl|CDD|215795 pfam00215, OMPdecase, Orotidine 5'-phosphate decarboxylase /
HUMPS family. This family includes Orotidine
5'-phosphate decarboxylase enzymes EC:4.1.1.23 that are
involved in the final step of pyrimidine biosynthesis.
The family also includes enzymes such as
hexulose-6-phosphate synthase. This family appears to
be distantly related to pfam00834.
Length = 217
Score = 25.7 bits (57), Expect = 8.0
Identities = 9/20 (45%), Positives = 12/20 (60%)
Query: 61 LDVSNREEVLRVADKVRKEV 80
LDV EE L +AD++ V
Sbjct: 7 LDVPTLEEALELADELGPYV 26
>gnl|CDD|235195 PRK04004, PRK04004, translation initiation factor IF-2; Validated.
Length = 586
Score = 25.9 bits (58), Expect = 8.6
Identities = 9/31 (29%), Positives = 18/31 (58%)
Query: 63 VSNREEVLRVADKVRKEVGEVTILVNNAGIM 93
V E+V V ++V +E+ E+ I + G++
Sbjct: 327 VVRDEDVEEVKEEVEEEIEEIRIETDEEGVV 357
>gnl|CDD|235036 PRK02412, aroD, 3-dehydroquinate dehydratase; Provisional.
Length = 253
Score = 25.6 bits (57), Expect = 8.8
Identities = 7/26 (26%), Positives = 13/26 (50%)
Query: 62 DVSNREEVLRVADKVRKEVGEVTILV 87
+S+ E VL A +R++ +L
Sbjct: 54 KISDVESVLAAAPAIREKFAGKPLLF 79
>gnl|CDD|233843 TIGR02390, RNA_pol_rpoA1, DNA-directed RNA polymerase subunit A'.
This family consists of the archaeal A' subunit of the
DNA-directed RNA polymerase. The example from
Methanocaldococcus jannaschii contains an intein.
Length = 867
Score = 25.8 bits (57), Expect = 9.2
Identities = 11/30 (36%), Positives = 15/30 (50%), Gaps = 4/30 (13%)
Query: 68 EVLRVADKVRKEVGEVTI----LVNNAGIM 93
+++ V K R E GEV N+A IM
Sbjct: 694 KIMEVLGKARDEAGEVAEKYLDPENHAVIM 723
>gnl|CDD|227390 COG5057, LAG1, Phosphotyrosyl phosphatase activator [Cell division
and chromosome partitioning / Signal transduction
mechanisms].
Length = 353
Score = 25.6 bits (56), Expect = 9.9
Identities = 8/22 (36%), Positives = 11/22 (50%)
Query: 108 KTFDVNVLAHFWVLAHFWVSNL 129
K +DV VL+ V+ HF
Sbjct: 280 KMYDVEVLSKLPVVQHFIFGEF 301
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.318 0.135 0.408
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: 6,521,261
Number of extensions: 564464
Number of successful extensions: 1220
Number of sequences better than 10.0: 1
Number of HSP's gapped: 992
Number of HSP's successfully gapped: 311
Length of query: 131
Length of database: 10,937,602
Length adjustment: 86
Effective length of query: 45
Effective length of database: 7,123,158
Effective search space: 320542110
Effective search space used: 320542110
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 53 (24.1 bits)