RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy16794
(131 letters)
>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 = 146 bits (371), Expect = 3e-45
Identities = 57/89 (64%), Positives = 67/89 (75%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + GSIVNVSS A + AL HT+Y ++KAALD +T+ MALELGP+ IRVNSV PTV
Sbjct: 122 MIARGVPGSIVNVSSQASQRALTNHTVYCSTKAALDMLTKVMALELGPHKIRVNSVNPTV 181
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFA 89
VMT MGR WSDP KA ML + PLG+FA
Sbjct: 182 VMTDMGRDNWSDPEKAKKMLNRIPLGKFA 210
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 128 bits (323), Expect = 5e-38
Identities = 55/94 (58%), Positives = 63/94 (67%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI GSIVNVSS A L H Y ASKAALD+ITR + +ELGP+ IRVNSV PTV
Sbjct: 123 MIAAGRGGSIVNVSSQAALVGLPDHLAYCASKAALDAITRVLCVELGPHGIRVNSVNPTV 182
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFAANANI 94
+T M WSDP K+GPMLA PLGRFA ++
Sbjct: 183 TLTPMAAEAWSDPQKSGPMLAAIPLGRFAEVDDV 216
>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 = 97.7 bits (244), Expect = 3e-26
Identities = 41/89 (46%), Positives = 53/89 (59%), Gaps = 2/89 (2%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M G IVN+SS+AG L G Y+ASKAAL+ +TR++ALEL PY IRVN+V P +
Sbjct: 120 MKKQG-GGRIVNISSVAGLRPLPGQAAYAASKAALEGLTRSLALELAPYGIRVNAVAPGL 178
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFA 89
V T M + A+ + A PLGR
Sbjct: 179 VDTPMLAKLGPEEAE-KELAAAIPLGRLG 206
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 94.3 bits (235), Expect = 8e-25
Identities = 39/83 (46%), Positives = 52/83 (62%), Gaps = 1/83 (1%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G IVN++S AG ALE H Y ASKA + +T+ +ALE GPY I VN++ PTVV+T++G
Sbjct: 140 GGKIVNLASQAGVVALERHVAYCASKAGVVGMTKVLALEWGPYGITVNAISPTVVLTELG 199
Query: 67 RTGWSDPAKAGPMLAKTPLGRFA 89
+ W+ K P GRFA
Sbjct: 200 KKAWAGE-KGERAKKLIPAGRFA 221
>gnl|CDD|223959 COG1028, FabG, Dehydrogenases with different specificities (related
to short-chain alcohol dehydrogenases) [Secondary
metabolites biosynthesis, transport, and catabolism /
General function prediction only].
Length = 251
Score = 86.4 bits (214), Expect = 1e-21
Identities = 35/90 (38%), Positives = 47/90 (52%), Gaps = 1/90 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
+ + IVN+SS+AG G Y+ASKAAL +T+ +ALEL P IRVN+V P
Sbjct: 129 ALPLMKKQRIVNISSVAGLGGPPGQAAYAASKAALIGLTKALALELAPRGIRVNAVAPGY 188
Query: 61 VMTQMGRTGWSDP-AKAGPMLAKTPLGRFA 89
+ T M S + A+ PLGR
Sbjct: 189 IDTPMTAALESAELEALKRLAARIPLGRLG 218
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 85.2 bits (212), Expect = 2e-21
Identities = 37/88 (42%), Positives = 50/88 (56%), Gaps = 3/88 (3%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + G IVN+SS++G T G T YSA+KA + T+ +ALEL I VN+V P
Sbjct: 128 MIKAR-YGRIVNISSVSGVTGNPGQTNYSAAKAGVIGFTKALALELASRGITVNAVAPGF 186
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRF 88
+ T M G + KA +L + PLGR
Sbjct: 187 IDTDMTE-GLPEEVKAE-ILKEIPLGRL 212
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 85.3 bits (212), Expect = 2e-21
Identities = 36/84 (42%), Positives = 47/84 (55%), Gaps = 2/84 (2%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVNV+S AG G Y+ASK A+ ++T+ +A ELGP IRVN+V P VV T +
Sbjct: 133 GGAIVNVASTAGLRPRPGLGWYNASKGAVITLTKALAAELGPDKIRVNAVAPVVVETGLL 192
Query: 67 RTGWSDPAKAG--PMLAKTPLGRF 88
+P LA PLGR
Sbjct: 193 EAFMGEPTPENRAKFLATIPLGRL 216
>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 = 81.3 bits (201), Expect = 8e-20
Identities = 40/88 (45%), Positives = 49/88 (55%), Gaps = 6/88 (6%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
K +G IVNVSS+AG + G Y SKAALD TR ALEL P +RVNSV P V++T
Sbjct: 131 KTKGEIVNVSSVAGGRSFPGVLYYCISKAALDQFTRCTALELAPKGVRVNSVSPGVIVTG 190
Query: 65 -MGRTGWSDPAKAGPMLAKT----PLGR 87
R G + L++ PLGR
Sbjct: 191 FHRRMGMPEEQYIK-FLSRAKETHPLGR 217
>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 = 80.9 bits (200), Expect = 1e-19
Identities = 32/88 (36%), Positives = 49/88 (55%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
KI+G I+N+SS+ K GH Y+ASK + +T+T+A E P IRVN++ P
Sbjct: 127 FRKSKIKGKIINMSSVHEKIPWPGHVNYAASKGGVKMMTKTLAQEYAPKGIRVNAIAPGA 186
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRF 88
+ T + W DP + +L+ P+GR
Sbjct: 187 INTPINAEAWDDPEQRADLLSLIPMGRI 214
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 80.3 bits (199), Expect = 2e-19
Identities = 33/82 (40%), Positives = 45/82 (54%), Gaps = 2/82 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G IVN+SS+AG G + Y+A+KA L +T+ +A EL Y I VN V P + T M
Sbjct: 136 GRIVNISSVAGLPGWPGRSNYAAAKAGLVGLTKALARELAEYGITVNMVAPGDIDTDMKE 195
Query: 68 TGWSDPAKAGPMLAKTPLGRFA 89
+ +A A+TPLGR
Sbjct: 196 ATIEEAREA--KDAETPLGRSG 215
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 78.0 bits (193), Expect = 1e-18
Identities = 37/84 (44%), Positives = 42/84 (50%), Gaps = 2/84 (2%)
Query: 7 QGSIVNVSSIAG-KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G IV SS+AG + G Y+ASKA L TR +ALEL NI VNSV P V T M
Sbjct: 134 GGRIVLTSSVAGPRVGYPGLAHYAASKAGLVGFTRALALELAARNITVNSVHPGGVDTPM 193
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFA 89
D A + A PLGR
Sbjct: 194 AG-NLGDAQWAEAIAAAIPLGRLG 216
>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 = 74.4 bits (183), Expect = 3e-17
Identities = 31/82 (37%), Positives = 46/82 (56%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G+IV +SS+AG A+ Y A+K AL+ +TR++A E NIRVN+V P V+ T +
Sbjct: 136 GNIVFISSVAGVIAVPSGAPYGATKGALNQLTRSLACEWAKDNIRVNAVAPWVIATPLVE 195
Query: 68 TGWSDPAKAGPMLAKTPLGRFA 89
++ +TPL RF
Sbjct: 196 PVIQQKENLDKVIERTPLKRFG 217
>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 = 73.0 bits (180), Expect = 8e-17
Identities = 30/89 (33%), Positives = 44/89 (49%), Gaps = 3/89 (3%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + G I+N+SS+ G G Y+ASKA + T+++A EL I VN+V P
Sbjct: 123 MIKRR-SGRIINISSVVGLIGNPGQANYAASKAGVIGFTKSLAKELASRGITVNAVAPGF 181
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFA 89
+ T M + +L + PLGR
Sbjct: 182 IDTDMTDALPEKVKEK--ILKQIPLGRLG 208
>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 = 72.3 bits (178), Expect = 2e-16
Identities = 26/69 (37%), Positives = 37/69 (53%), Gaps = 1/69 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M G IVNVSS+AG Y ASKAAL++++ ++ LEL P+ I+V ++P
Sbjct: 120 MRKQG-SGRIVNVSSVAGLVPTPFLGPYCASKAALEALSESLRLELAPFGIKVTIIEPGP 178
Query: 61 VMTQMGRTG 69
V T
Sbjct: 179 VRTGFADNA 187
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 72.1 bits (177), Expect = 3e-16
Identities = 35/82 (42%), Positives = 50/82 (60%), Gaps = 1/82 (1%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVN +S+AG A +IY+ASK A+ +T++ A+E IRVN+V P V+ T M
Sbjct: 136 GGAIVNTASVAGLGAAPKMSIYAASKHAVIGLTKSAAIEYAKKGIRVNAVCPAVIDTDMF 195
Query: 67 RTGW-SDPAKAGPMLAKTPLGR 87
R + +DP KA A P+GR
Sbjct: 196 RRAYEADPRKAEFAAAMHPVGR 217
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 73.0 bits (179), Expect = 4e-16
Identities = 42/93 (45%), Positives = 53/93 (56%), Gaps = 7/93 (7%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI+ +IVNV+S AG AL T YSASKAA+ S+TR++A E IRVN+V P
Sbjct: 127 MIEQGHGAAIVNVASGAGLVALPKRTAYSASKAAVISLTRSLACEWAAKGIRVNAVLPGY 186
Query: 61 VMTQM----GRTGWSDPAKAGPMLAKTPLGRFA 89
V TQM R G DP+ ++ PLGR
Sbjct: 187 VRTQMVAELERAGKLDPSAV---RSRIPLGRLG 216
Score = 56.0 bits (135), Expect = 4e-10
Identities = 32/84 (38%), Positives = 45/84 (53%), Gaps = 7/84 (8%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT---- 63
G IVN+ SIA AL Y ASKAA+ ++R++A E P IRVN+V P + T
Sbjct: 394 GVIVNLGSIASLLALPPRNAYCASKAAVTMLSRSLACEWAPAGIRVNTVAPGYIETPAVL 453
Query: 64 QMGRTGWSDPAKAGPMLAKTPLGR 87
+ +G +D + + PLGR
Sbjct: 454 ALKASGRADFDS---IRRRIPLGR 474
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 71.4 bits (176), Expect = 4e-16
Identities = 30/82 (36%), Positives = 43/82 (52%), Gaps = 2/82 (2%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+N+SS+ G G Y+ASKA + T+++A EL I VN+V P + T M
Sbjct: 134 SGRIINISSVVGLMGNPGQANYAASKAGVIGFTKSLARELASRGITVNAVAPGFIETDMT 193
Query: 67 RTGWSDPAKAGPMLAKTPLGRF 88
+ K +LA+ PLGR
Sbjct: 194 DAL-PEDVKEA-ILAQIPLGRL 213
>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 = 71.1 bits (175), Expect = 5e-16
Identities = 34/89 (38%), Positives = 49/89 (55%), Gaps = 3/89 (3%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + G I+N+SS+ G G Y+ASKA + T+++A EL NI VN+V P
Sbjct: 122 MIKQR-SGRIINISSVVGLMGNAGQANYAASKAGVIGFTKSLAKELASRNITVNAVAPGF 180
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFA 89
+ T M S+ K +L++ PLGRF
Sbjct: 181 IDTDMTDK-LSEKVKKK-ILSQIPLGRFG 207
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 70.7 bits (174), Expect = 8e-16
Identities = 30/68 (44%), Positives = 35/68 (51%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IV V S A G Y ASKAAL S+ + + LEL PY +R N V P T M
Sbjct: 127 SGAIVTVGSNAAHVPRIGMAAYGASKAALTSLAKCVGLELAPYGVRCNVVSPGSTDTDMQ 186
Query: 67 RTGWSDPA 74
RT W D
Sbjct: 187 RTLWVDED 194
>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 = 71.0 bits (174), Expect = 8e-16
Identities = 34/84 (40%), Positives = 43/84 (51%), Gaps = 5/84 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI+ GSI+ SS+AG AL G Y+A+K L +T+T+A EL Y IRVNS+ P
Sbjct: 139 MIERGNGGSIIITSSVAGLKALPGLAHYAAAKHGLVGLTKTLANELAEYGIRVNSIHPYS 198
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTP 84
V T M P K P
Sbjct: 199 VDTPM-----IAPEAMREAFLKYP 217
>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 = 70.5 bits (173), Expect = 9e-16
Identities = 33/85 (38%), Positives = 43/85 (50%), Gaps = 5/85 (5%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGP--YNIRVNSVQPTVVMTQM 65
GSI+N+SSI G Y+ASK A+ +T++ ALE Y IRVNSV P + T M
Sbjct: 131 GSIINMSSIEGLVGDPALAAYNASKGAVRGLTKSAALECATQGYGIRVNSVHPGYIYTPM 190
Query: 66 GRTGWSDPAKAGP-MLAKTPLGRFA 89
T A+ TP+GR
Sbjct: 191 --TDELLIAQGEMGNYPNTPMGRAG 213
>gnl|CDD|181668 PRK09135, PRK09135, pteridine reductase; Provisional.
Length = 249
Score = 70.0 bits (172), Expect = 1e-15
Identities = 33/84 (39%), Positives = 55/84 (65%), Gaps = 2/84 (2%)
Query: 4 HKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
K +G+IVN++ I + L+G+ +Y A+KAAL+ +TR++ALEL P +RVN+V P ++
Sbjct: 132 RKQRGAIVNITDIHAERPLKGYPVYCAAKAALEMLTRSLALELAP-EVRVNAVAPGAILW 190
Query: 64 QMGRTGWSDPAKAGPMLAKTPLGR 87
+ + A+ +LA+TPL R
Sbjct: 191 PEDGNSFDEEARQA-ILARTPLKR 213
>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 = 69.7 bits (171), Expect = 2e-15
Identities = 23/80 (28%), Positives = 40/80 (50%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N+ S+ + Y+ASK + +T+ +A E + I+VN++ P T+M
Sbjct: 134 GKIINICSLLSELGGPPVPAYAASKGGVAGLTKALATEWARHGIQVNAIAPGYFATEMTE 193
Query: 68 TGWSDPAKAGPMLAKTPLGR 87
+DP +L + P GR
Sbjct: 194 AVVADPEFNDDILKRIPAGR 213
>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 = 69.4 bits (170), Expect = 3e-15
Identities = 37/96 (38%), Positives = 48/96 (50%), Gaps = 8/96 (8%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IV V+S A Y ASKAAL S+++ + LEL PY +R N V P T M
Sbjct: 119 TGAIVTVASNAAHVPRISMAAYGASKAALASLSKCLGLELAPYGVRCNVVSPGSTDTAMQ 178
Query: 67 RTGWSDPAKAGPMLAKT--------PLGRFAANANI 94
RT W D A ++A PLG+ A A+I
Sbjct: 179 RTLWHDEDGAAQVIAGVPEQFRLGIPLGKIAQPADI 214
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 69.4 bits (170), Expect = 3e-15
Identities = 28/59 (47%), Positives = 42/59 (71%), Gaps = 1/59 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVN++S+AG G +IY A KAA+ ++T+ +ALEL P IRVN++ P V T++G
Sbjct: 134 GAIVNIASVAGIRPAYGLSIYGAMKAAVINLTKYLALELAP-KIRVNAIAPGFVKTKLG 191
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 69.1 bits (170), Expect = 3e-15
Identities = 38/90 (42%), Positives = 52/90 (57%), Gaps = 5/90 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI K G IVN+SSI G +YSASK A+++ T+ +A EL P IRVN+V P
Sbjct: 129 MIKRK-SGVIVNISSIWGLIGASCEVLYSASKGAVNAFTKALAKELAPSGIRVNAVAPGA 187
Query: 61 VMTQMGRTGWSDPAKAGPMLAKT-PLGRFA 89
+ T+M + +S+ K LA+ PLGR
Sbjct: 188 IDTEMWSS-FSEEDK--EGLAEEIPLGRLG 214
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 68.0 bits (167), Expect = 7e-15
Identities = 37/95 (38%), Positives = 54/95 (56%), Gaps = 12/95 (12%)
Query: 8 GSIVNVSSIAGKTALEGH------TI-YSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
G I+NV+S+AG L G+ TI Y+ SK A+ + TR +A E GP+ IRVN++ P
Sbjct: 142 GRIINVASVAG---LGGNPPEVMDTIAYNTSKGAVINFTRALAAEWGPHGIRVNAIAPGF 198
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFAANANIK 95
T+M T + +LA TPLGR + ++K
Sbjct: 199 FPTKM--TRGTLERLGEDLLAHTPLGRLGDDEDLK 231
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 67.8 bits (166), Expect = 1e-14
Identities = 29/80 (36%), Positives = 44/80 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+ ++SIAG+ A G +Y A+K L + R +A E GP+ I N++ P T+
Sbjct: 140 GRIIAITSIAGQVARAGDAVYPAAKQGLTGLMRALAAEFGPHGITSNAIAPGYFATETNA 199
Query: 68 TGWSDPAKAGPMLAKTPLGR 87
+DPA + +TPLGR
Sbjct: 200 AMAADPAVGPWLAQRTPLGR 219
>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 = 66.9 bits (164), Expect = 2e-14
Identities = 36/96 (37%), Positives = 49/96 (51%), Gaps = 8/96 (8%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IV V S A G Y+ASKAAL +T+ + LEL PY IR N V P T+M
Sbjct: 126 SGAIVTVGSNAANVPRMGMAAYAASKAALTMLTKCLGLELAPYGIRCNVVSPGSTDTEMQ 185
Query: 67 RTGWSDPAKAGPMLAKT--------PLGRFAANANI 94
R W+D ++A + PLG+ A ++I
Sbjct: 186 RQLWNDEYGEQQVIAGSPEQFRLGIPLGKIAEPSDI 221
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 66.7 bits (163), Expect = 2e-14
Identities = 33/87 (37%), Positives = 46/87 (52%), Gaps = 4/87 (4%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + G IVN++S+AG G Y+ASKA L +T+T+A EL P I VN+V P
Sbjct: 133 MIRARRGGRIVNIASVAGVRGNRGQVNYAASKAGLIGLTKTLANELAPRGITVNAVAPGA 192
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGR 87
+ T M + A +L P+ R
Sbjct: 193 INTPMAD----NAAPTEHLLNPVPVQR 215
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 66.6 bits (163), Expect = 3e-14
Identities = 32/89 (35%), Positives = 47/89 (52%), Gaps = 9/89 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+ +SS+AG+ G T Y+ASK A+ + +++A+ELGP IRVN++ P +V R
Sbjct: 140 GVIIALSSVAGRLGYPGRTPYAASKWAVVGLVKSLAIELGPLGIRVNAILPGIVRGPRMR 199
Query: 68 TGWSDPAK-----AGPM----LAKTPLGR 87
A+ M L K LGR
Sbjct: 200 RVIEARAQQLGIGLDEMEQEYLEKISLGR 228
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 66.2 bits (162), Expect = 4e-14
Identities = 29/51 (56%), Positives = 36/51 (70%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
G IVN+SS AG EG + Y+A+KAAL+S TR+ A ELG +NIRV V P
Sbjct: 138 GVIVNMSSEAGLEGSEGQSCYAATKAALNSFTRSWAKELGKHNIRVVGVAP 188
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 66.2 bits (162), Expect = 4e-14
Identities = 33/87 (37%), Positives = 46/87 (52%), Gaps = 2/87 (2%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M+ G I+N++S+ T L G + Y+A+K AL +T+ MALEL + I VN+V P
Sbjct: 126 MVKQGQGGRIINITSVHEHTPLPGASAYTAAKHALGGLTKAMALELVEHGILVNAVAPGA 185
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGR 87
+ T M SD K PLGR
Sbjct: 186 IATPMNGMDDSDV-KPDSR-PGIPLGR 210
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 66.2 bits (162), Expect = 4e-14
Identities = 38/86 (44%), Positives = 51/86 (59%), Gaps = 8/86 (9%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP----TVVM 62
G+IVN +SI+ K A G +Y ASKAA+ +TR+MA++L P IRVNSV P + VM
Sbjct: 129 GGAIVNFTSISAKFAQTGRWLYPASKAAIRQLTRSMAMDLAPDGIRVNSVSPGWTWSRVM 188
Query: 63 TQMGRTGWSDPAKAGPMLAKT-PLGR 87
++ D AKA + A LGR
Sbjct: 189 DELSG---GDRAKADRVAAPFHLLGR 211
>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 = 65.6 bits (160), Expect = 6e-14
Identities = 30/80 (37%), Positives = 40/80 (50%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GS+V VSS+A G Y+ SK AL +T+ +A EL P NIRVN + P ++ T
Sbjct: 140 GSVVIVSSVAAFHPFPGLGPYNVSKTALLGLTKNLAPELAPRNIRVNCLAPGLIKTSFSS 199
Query: 68 TGWSDPAKAGPMLAKTPLGR 87
W D A M + R
Sbjct: 200 ALWMDKAVEESMKETLRIRR 219
>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 = 65.4 bits (160), Expect = 6e-14
Identities = 31/80 (38%), Positives = 43/80 (53%), Gaps = 1/80 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N+SS + Y+ SKAA+++ TR +A ELG I VN+V P V T M
Sbjct: 131 GRIINISSSLTAAYTPNYGAYAGSKAAVEAFTRVLAKELGGRGITVNAVAPGPVDTDMFY 190
Query: 68 TGWSDPAKAGPMLAKTPLGR 87
G ++ A G +PLGR
Sbjct: 191 AGKTEEAVEG-YAKMSPLGR 209
>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 = 64.9 bits (159), Expect = 1e-13
Identities = 31/88 (35%), Positives = 48/88 (54%), Gaps = 1/88 (1%)
Query: 2 IDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVV 61
I+ K GSI+N+S+ T +A+KA +D++TR++A+E GPY IRVN++ P +
Sbjct: 128 IEAKHGGSILNISATYAYTGSPFQVHSAAAKAGVDALTRSLAVEWGPYGIRVNAIAPGPI 187
Query: 62 MTQMG-RTGWSDPAKAGPMLAKTPLGRF 88
T G M+ + PLGR
Sbjct: 188 PTTEGMERLAPSGKSEKKMIERVPLGRL 215
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 64.6 bits (158), Expect = 1e-13
Identities = 33/87 (37%), Positives = 50/87 (57%), Gaps = 1/87 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSIVN+ S++G+ G Y A+KA L ++TR++A+E P +RVN+V +V T+
Sbjct: 128 GSIVNIGSVSGRRPSPGTAAYGAAKAGLLNLTRSLAVEWAP-KVRVNAVVVGLVRTEQSE 186
Query: 68 TGWSDPAKAGPMLAKTPLGRFAANANI 94
+ D + A PLGR A A+I
Sbjct: 187 LHYGDAEGIAAVAATVPLGRLATPADI 213
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 64.7 bits (158), Expect = 1e-13
Identities = 32/83 (38%), Positives = 47/83 (56%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
GSIVNV+S+ G + + IYS +KAA+ S+T+ A E P+ IRVN++ P + T+
Sbjct: 137 GGSIVNVASVNGVSPGDFQGIYSITKAAVISMTKAFAKECAPFGIRVNALLPGLTDTKFA 196
Query: 67 RTGWSDPAKAGPMLAKTPLGRFA 89
+ + A LA PL R A
Sbjct: 197 SALFKNDAILKQALAHIPLRRHA 219
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 64.6 bits (158), Expect = 1e-13
Identities = 23/63 (36%), Positives = 36/63 (57%), Gaps = 1/63 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M++ K G I+N+ SIAG+ G +Y A+KAA+ + + + EL IRV + P +
Sbjct: 127 MVERK-SGHIINLGSIAGRYPYPGGAVYGATKAAVRAFSLGLRQELAGTGIRVTVISPGL 185
Query: 61 VMT 63
V T
Sbjct: 186 VET 188
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 64.6 bits (158), Expect = 1e-13
Identities = 36/94 (38%), Positives = 50/94 (53%), Gaps = 3/94 (3%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI+ +G I+N+SSIA + G T YSASKA + ++T T A EL Y IRV ++ P V
Sbjct: 137 MIESGSKGVIINISSIA-RAGNMGQTNYSASKAGVAAMTVTWAKELARYGIRVAAIAPGV 195
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFAANANI 94
+ T+M T P + P+GR I
Sbjct: 196 IETEM--TAAMKPEALERLEKMIPVGRLGEPEEI 227
>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 = 64.3 bits (157), Expect = 2e-13
Identities = 31/83 (37%), Positives = 44/83 (53%), Gaps = 6/83 (7%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G IV +SS+ AL + +KAAL+++ R +A+ELGP IRVN+V P V+ T
Sbjct: 128 GRIVAISSLGSIRALPNYLAVGTAKAALEALVRYLAVELGPRGIRVNAVSPGVIDTDALA 187
Query: 68 TGWSDPAKAGPM---LAKTPLGR 87
P + + A TP GR
Sbjct: 188 ---HFPNREDLLEAAAANTPAGR 207
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 63.7 bits (155), Expect = 2e-13
Identities = 22/60 (36%), Positives = 33/60 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G IVN+ + A A G Y+A+KA + +T +A EL I VN+V P+++ T R
Sbjct: 134 GRIVNIGAGAALKAGPGMGAYAAAKAGVARLTEALAAELLDRGITVNAVLPSIIDTPPNR 193
>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 = 63.4 bits (155), Expect = 3e-13
Identities = 31/81 (38%), Positives = 41/81 (50%), Gaps = 5/81 (6%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
GSI+N+ L G+ Y SKAAL+ +TR+ ALEL P NIRVN + P +++
Sbjct: 129 NGSIINIIDAMTDRPLTGYFAYCMSKAALEGLTRSAALELAP-NIRVNGIAPGLILLPED 187
Query: 67 RTGWSDPAKAGPMLAKTPLGR 87
A L K PL R
Sbjct: 188 MD-AEYRENA---LRKVPLKR 204
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 63.6 bits (155), Expect = 3e-13
Identities = 34/94 (36%), Positives = 49/94 (52%), Gaps = 1/94 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M++H GS++N+SS G+ A G Y +KAAL TR AL+L P IRVN++ P
Sbjct: 133 MLEHSGGGSVINISSTMGRLAGRGFAAYGTAKAALAHYTRLAALDLCP-RIRVNAIAPGS 191
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRFAANANI 94
++T ++ PM TPL R +I
Sbjct: 192 ILTSALEVVAANDELRAPMEKATPLRRLGDPEDI 225
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 62.9 bits (153), Expect = 6e-13
Identities = 29/87 (33%), Positives = 46/87 (52%), Gaps = 1/87 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+ ++S+A + T Y++SKAA + R MA +LG NIRVN + P ++T +
Sbjct: 139 GVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALK 198
Query: 68 TGWSDPAKAGPMLAKTPLGRFAANANI 94
+ + P ML TP+ R +I
Sbjct: 199 SVIT-PEIEQKMLQHTPIRRLGQPQDI 224
>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 = 62.9 bits (153), Expect = 6e-13
Identities = 29/62 (46%), Positives = 38/62 (61%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSIV+V+S+AG G Y+ASK A+ +TR+ A ELG + IRVN V P V T +
Sbjct: 133 GSIVSVASVAGVVGGLGPHAYTASKHAVLGLTRSAATELGEHGIRVNCVSPYGVATPLLT 192
Query: 68 TG 69
G
Sbjct: 193 AG 194
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 63.1 bits (154), Expect = 6e-13
Identities = 36/88 (40%), Positives = 50/88 (56%), Gaps = 10/88 (11%)
Query: 7 QGSIVNVSSIAGKTALEGH---TIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
+G+IVN+SS KTAL G + Y+A+K A ++TR A+ L +RVN+V P VMT
Sbjct: 132 RGAIVNISS---KTALTGQGGTSGYAAAKGAQLALTREWAVALAKDGVRVNAVIPAEVMT 188
Query: 64 QMGRT---GWSDP-AKAGPMLAKTPLGR 87
+ + DP AK + AK PLG
Sbjct: 189 PLYENWIATFDDPEAKLAAITAKIPLGH 216
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 62.5 bits (152), Expect = 7e-13
Identities = 35/81 (43%), Positives = 55/81 (67%), Gaps = 2/81 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVNVSSIA + + Y+ SK A+D++T +A ELGP+ +RVN+V+P ++ T++
Sbjct: 136 GAIVNVSSIASRLGSPNEYVDYAGSKGAVDTLTLGLAKELGPHGVRVNAVRPGLIETEIH 195
Query: 67 RTGWSDPAKAGPMLAKTPLGR 87
+G P +A + A+TPLGR
Sbjct: 196 ASG-GQPGRAARLGAQTPLGR 215
>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 = 62.4 bits (152), Expect = 8e-13
Identities = 35/92 (38%), Positives = 46/92 (50%), Gaps = 7/92 (7%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S AG G T Y+ASK + + T+ MA+EL P NIRVN + P T +
Sbjct: 132 GVIINIASTAGLRPRPGLTWYNASKGWVVTATKAMAVELAPRNIRVNCLCPVAGETPLLS 191
Query: 68 T-GWSD-PAKAGPMLAKTPLGRFA-----ANA 92
D P A PLGR + ANA
Sbjct: 192 MFMGEDTPENRAKFRATIPLGRLSTPDDIANA 223
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 62.5 bits (152), Expect = 8e-13
Identities = 45/129 (34%), Positives = 59/129 (45%), Gaps = 18/129 (13%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+G++VN+ S+ G AL GH YSA+KA L T+ +A+E G + IR N+V P V TQ
Sbjct: 128 RGAVVNIGSVNGMAAL-GHPAYSAAKAGLIHYTKLLAVEYGRFGIRANAVAPGTVKTQ-- 184
Query: 67 RTGWSDPAKAGPML---AKT--PLGRFA-----ANANIKFFFKEMGR--TGWSDPAKAGP 114
W A P + K PL FA ANA + F R TG P G
Sbjct: 185 --AWEARVAANPQVFEELKKWYPLQDFATPDDVANA-VLFLASPAARAITGVCLPVDGGL 241
Query: 115 MLAKTPLGR 123
+ R
Sbjct: 242 TAGNREMAR 250
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 62.1 bits (151), Expect = 1e-12
Identities = 33/66 (50%), Positives = 43/66 (65%), Gaps = 1/66 (1%)
Query: 8 GSIVNVSSIAG-KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVN++S AG TA EG T Y+ +KA + +TR +A ELG Y IRVN+V P V T M
Sbjct: 131 GAIVNIASNAGIGTAAEGTTFYAITKAGIIILTRRLAFELGKYGIRVNAVAPGWVETDMT 190
Query: 67 RTGWSD 72
+G S
Sbjct: 191 LSGKSQ 196
>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 = 62.1 bits (151), Expect = 1e-12
Identities = 28/61 (45%), Positives = 41/61 (67%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSIVN+SSIAG++ G+ Y ASKAA+ ++TRT+A EL IR N++ P ++ T +
Sbjct: 130 GSIVNLSSIAGQSGDPGYGAYGASKAAIRNLTRTLAAELRHAGIRCNALAPGLIDTPLLL 189
Query: 68 T 68
Sbjct: 190 A 190
>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 = 61.5 bits (150), Expect = 2e-12
Identities = 23/63 (36%), Positives = 36/63 (57%), Gaps = 1/63 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI QG I+N+ SIAG+ G +Y A+KAA+ + + +L IRV +++P +
Sbjct: 125 MIARN-QGHIINLGSIAGRYPYAGGNVYCATKAAVRQFSLNLRKDLIGTGIRVTNIEPGL 183
Query: 61 VMT 63
V T
Sbjct: 184 VET 186
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 61.7 bits (150), Expect = 2e-12
Identities = 28/82 (34%), Positives = 44/82 (53%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
+IVN+ S++G T + Y +KAAL +TR +A+E IRVN+V P + T +
Sbjct: 140 SAIVNIGSVSGLTHVRSGAPYGMTKAALLQMTRNLAVEWAEDGIRVNAVAPWYIRTPLTS 199
Query: 68 TGWSDPAKAGPMLAKTPLGRFA 89
SDP ++ +TP+ R
Sbjct: 200 GPLSDPDYYEQVIERTPMRRVG 221
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 61.1 bits (149), Expect = 2e-12
Identities = 23/56 (41%), Positives = 32/56 (57%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
GSIV +S IA + G+ +KAAL+S+ R +A ELG IRVN++ T
Sbjct: 126 GSIVALSYIAAERVFPGYGGMGVAKAALESLARYLAYELGRKGIRVNTISAGPTKT 181
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 61.5 bits (150), Expect = 3e-12
Identities = 32/93 (34%), Positives = 51/93 (54%), Gaps = 6/93 (6%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M+ K G+I+N+SS+ T L YSA+KAA+ + T+ +A+ IRVN++ P
Sbjct: 148 MVGRK-GGNIINISSMNAFTPLTKVPAYSAAKAAISNFTQWLAVHFAKVGIRVNAIAPGF 206
Query: 61 VMTQMGRTGWSDP-----AKAGPMLAKTPLGRF 88
+T+ R + +A +LA TP+GRF
Sbjct: 207 FLTEQNRALLFNEDGSLTERANKILAHTPMGRF 239
>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 = 61.2 bits (149), Expect = 3e-12
Identities = 27/65 (41%), Positives = 34/65 (52%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
G I+N SSIAG YSASK A+ +T+T A EL P I VN+ P +
Sbjct: 126 FKKLGHGGKIINASSIAGVQGFPNLGAYSASKFAVRGLTQTAAQELAPKGITVNAYAPGI 185
Query: 61 VMTQM 65
V T+M
Sbjct: 186 VKTEM 190
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 60.9 bits (148), Expect = 3e-12
Identities = 33/81 (40%), Positives = 52/81 (64%), Gaps = 2/81 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVNVSS+A + G I Y+ASK A+D++T +A E+ IRVN+V+P V+ T++
Sbjct: 136 GAIVNVSSMAARLGSPGEYIDYAASKGAIDTMTIGLAKEVAAEGIRVNAVRPGVIYTEIH 195
Query: 67 RTGWSDPAKAGPMLAKTPLGR 87
+G +P + + A P+GR
Sbjct: 196 ASG-GEPGRVDRVKAGIPMGR 215
>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 = 60.8 bits (148), Expect = 4e-12
Identities = 25/91 (27%), Positives = 42/91 (46%), Gaps = 9/91 (9%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ--- 64
G IVN+SS+ K + + ++A L + +T++ EL P + VNSV P + T+
Sbjct: 130 GRIVNISSLTVKEPEPNLVLSNVARAGLIGLVKTLSRELAPDGVTVNSVLPGYIDTERVR 189
Query: 65 ------MGRTGWSDPAKAGPMLAKTPLGRFA 89
+ G S + ++ PLGR
Sbjct: 190 RLLEARAEKEGISVEEAEKEVASQIPLGRVG 220
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 59.8 bits (145), Expect = 8e-12
Identities = 33/85 (38%), Positives = 43/85 (50%), Gaps = 4/85 (4%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSIVN +S G Y ASK A+ S+TR MAL+ IRVN+V P + T R
Sbjct: 133 GSIVNTASQLALAGGRGRAAYVASKGAIASLTRAMALDHATDGIRVNAVAPGTIDTPYFR 192
Query: 68 TGWS---DPAKAGPML-AKTPLGRF 88
++ DP L A+ P+ RF
Sbjct: 193 RIFARHADPEALREALRARHPMNRF 217
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 59.6 bits (145), Expect = 1e-11
Identities = 20/71 (28%), Positives = 32/71 (45%), Gaps = 5/71 (7%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+N+ S AG +YSA+KA + S + + EL ++V +V P
Sbjct: 135 AGHIINIGSAAGLIPTPYMAVYSATKAFVLSFSEALREELKGTGVKVTAVCPGPT----- 189
Query: 67 RTGWSDPAKAG 77
RT + D +
Sbjct: 190 RTEFFDAKGSD 200
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 58.6 bits (142), Expect = 2e-11
Identities = 37/91 (40%), Positives = 49/91 (53%), Gaps = 6/91 (6%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
QG IVN+ S A AL+ T YSA+K+AL TRT ALEL Y I VN+V P + T++
Sbjct: 119 QGRIVNICSRAIFGALD-RTSYSAAKSALVGCTRTWALELAEYGITVNAVAPGPIETELF 177
Query: 67 RTG---WSDPAKAGPMLAKTPLGRFAANANI 94
R S+ K +LA P+ R +
Sbjct: 178 RQTRPVGSEEEKR--VLASIPMRRLGTPEEV 206
>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 = 57.8 bits (140), Expect = 4e-11
Identities = 22/58 (37%), Positives = 35/58 (60%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G +V ++S++GK L G+ YSASK AL ++ + E + +RV++V P V T M
Sbjct: 125 GRVVFLNSLSGKRVLAGNAGYSASKFALRALAHALRQEGWDHGVRVSAVCPGFVDTPM 182
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 57.7 bits (140), Expect = 5e-11
Identities = 28/67 (41%), Positives = 41/67 (61%), Gaps = 4/67 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGK--TALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
M++ G I+N++S AG+ AL H Y A+KAA+ S T++ AL L + I VN++ P
Sbjct: 126 MVEQGRGGKIINMASQAGRRGEALVSH--YCATKAAVISYTQSAALALIRHGINVNAIAP 183
Query: 59 TVVMTQM 65
VV T M
Sbjct: 184 GVVDTPM 190
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 57.8 bits (140), Expect = 5e-11
Identities = 26/87 (29%), Positives = 49/87 (56%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
++H I+G+I+N+SS+ + Y+ASK + +T T+A+E P IRVN++ P
Sbjct: 131 FVEHDIKGNIINMSSVHEQIPWPLFVHYAASKGGVKLMTETLAMEYAPKGIRVNNIGPGA 190
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGR 87
+ T + ++DP + + + P+G
Sbjct: 191 INTPINAEKFADPKQRADVESMIPMGY 217
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 57.8 bits (140), Expect = 5e-11
Identities = 24/56 (42%), Positives = 35/56 (62%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G I+++SS+ LE +T SKAAL+++TR +A+EL P I VN+V V T
Sbjct: 134 GKIISLSSLGSIRYLENYTTVGVSKAALEALTRYLAVELAPKGIAVNAVSGGAVDT 189
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 57.4 bits (139), Expect = 6e-11
Identities = 24/65 (36%), Positives = 39/65 (60%), Gaps = 1/65 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI+ + G I+N+SS AG+ + YSASK + +T ++ E+ +NIRV ++ P+
Sbjct: 130 MIERQ-SGDIINISSTAGQKGAAVTSAYSASKFGVLGLTESLMQEVRKHNIRVTALTPST 188
Query: 61 VMTQM 65
V T M
Sbjct: 189 VATDM 193
>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 = 57.3 bits (139), Expect = 6e-11
Identities = 25/63 (39%), Positives = 35/63 (55%), Gaps = 2/63 (3%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
++ ++VNVSS A +G +Y +SKAA D R +A E ++RV S P VV T
Sbjct: 128 GLKKTVVNVSSGAAVNPFKGWGLYCSSKAARDMFFRVLAAEE--PDVRVLSYAPGVVDTD 185
Query: 65 MGR 67
M R
Sbjct: 186 MQR 188
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 57.1 bits (138), Expect = 7e-11
Identities = 23/58 (39%), Positives = 32/58 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+N+SS+ G G T YSA+KA + T+ +A E Y I VN + P + T M
Sbjct: 132 GRIINISSVNGLKGQFGQTNYSAAKAGMIGFTKALASEGARYGITVNCIAPGYIATPM 189
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 57.5 bits (139), Expect = 7e-11
Identities = 35/96 (36%), Positives = 50/96 (52%), Gaps = 8/96 (8%)
Query: 1 MIDHKIQGSIVNVSSIAGK-TALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPT 59
MI K G IV +SS+ G A G T Y+ +KAA+ +T+++A+E IRVN++ P
Sbjct: 128 MIARK-DGRIVMMSSVTGDMVADPGETAYALTKAAIVGLTKSLAVEYAQSGIRVNAICPG 186
Query: 60 VVMTQMG-----RTGWSDPAKAGPMLAK-TPLGRFA 89
V T M ++ DP +AK PL R A
Sbjct: 187 YVRTPMAESIARQSNPEDPESVLTEMAKAIPLRRLA 222
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 56.8 bits (137), Expect = 1e-10
Identities = 30/81 (37%), Positives = 49/81 (60%), Gaps = 2/81 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVNVSS A + G + Y+ASK A+D++T ++LE+ IRVN V+P + T+M
Sbjct: 135 GAIVNVSSAASRLGAPGEYVDYAASKGAIDTLTTGLSLEVAAQGIRVNCVRPGFIYTEMH 194
Query: 67 RTGWSDPAKAGPMLAKTPLGR 87
+G +P + + + P+ R
Sbjct: 195 ASG-GEPGRVDRVKSNIPMQR 214
>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 = 56.8 bits (137), Expect = 1e-10
Identities = 32/80 (40%), Positives = 47/80 (58%), Gaps = 1/80 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G+I+N+SS++ + Y +SKAA++ +TR +A +LGP IRVN+V P V T
Sbjct: 129 GAILNISSMSSENKNVRIAAYGSSKAAVNHMTRNLAFDLGPKGIRVNAVAPGAVKTDALA 188
Query: 68 TGWSDPAKAGPMLAKTPLGR 87
+ + P ML TPLGR
Sbjct: 189 SVLT-PEIERAMLKHTPLGR 207
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 57.2 bits (139), Expect = 1e-10
Identities = 26/65 (40%), Positives = 32/65 (49%), Gaps = 8/65 (12%)
Query: 1 MIDHKIQGSIVNVSS----IAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
M + GSIV ++S G Y A+KAA + R +ALELGP IRVN V
Sbjct: 544 MKAQGLGGSIVFIASKNAVNPGPNFGA----YGAAKAAELHLVRQLALELGPDGIRVNGV 599
Query: 57 QPTVV 61
P V
Sbjct: 600 NPDAV 604
>gnl|CDD|187593 cd05332, 11beta-HSD1_like_SDR_c, 11beta-hydroxysteroid
dehydrogenase type 1 (11beta-HSD1)-like, classical (c)
SDRs. Human 11beta_HSD1 catalyzes the NADP(H)-dependent
interconversion of cortisone and cortisol. This subgroup
also includes human dehydrogenase/reductase SDR family
member 7C (DHRS7C) and DHRS7B. These proteins have the
GxxxGxG nucleotide binding motif and S-Y-K catalytic
triad characteristic of the SDRs, but have an atypical
C-terminal domain that contributes to homodimerization
contacts. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 56.4 bits (137), Expect = 1e-10
Identities = 28/65 (43%), Positives = 37/65 (56%), Gaps = 1/65 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
+I+ QGSIV VSSIAGK + T Y+ASK AL ++ EL NI V V P +
Sbjct: 127 LIERS-QGSIVVVSSIAGKIGVPFRTAYAASKHALQGFFDSLRAELSEPNISVTVVCPGL 185
Query: 61 VMTQM 65
+ T +
Sbjct: 186 IDTNI 190
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 56.3 bits (136), Expect = 2e-10
Identities = 30/85 (35%), Positives = 46/85 (54%), Gaps = 2/85 (2%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
K G I+N++S+AG L +Y SKAA+ +TR MALE G + I VN++ P + T+
Sbjct: 143 KPGGRIINIASVAGLRVLPQIGLYCMSKAAVVHMTRAMALEWGRHGINVNAICPGYIDTE 202
Query: 65 MGRTGWSDPA--KAGPMLAKTPLGR 87
+ W K ML + +G+
Sbjct: 203 INHHHWETEQGQKLVSMLPRKRVGK 227
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 56.1 bits (136), Expect = 2e-10
Identities = 27/67 (40%), Positives = 36/67 (53%), Gaps = 1/67 (1%)
Query: 8 GSIVNVSSIAGKTA-LEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
GS++ S+ G TA G Y+ASKA L +T+ +A E G IRVN++ P T MG
Sbjct: 136 GSLIFTSTFVGHTAGFPGMAAYAASKAGLIGLTQVLAAEYGAQGIRVNALLPGGTDTPMG 195
Query: 67 RTGWSDP 73
R P
Sbjct: 196 RAMGDTP 202
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 56.3 bits (136), Expect = 2e-10
Identities = 28/81 (34%), Positives = 41/81 (50%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GS V +SSIA Y +K+A+D + + A ELGP +RVNS++P ++ T +
Sbjct: 139 GSFVGISSIAASNTHRWFGAYGVTKSAVDHLMKLAADELGPSWVRVNSIRPGLIRTDLVA 198
Query: 68 TGWSDPAKAGPMLAKTPLGRF 88
P + A TPL R
Sbjct: 199 PITESPELSADYRACTPLPRV 219
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 55.5 bits (134), Expect = 3e-10
Identities = 24/66 (36%), Positives = 36/66 (54%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N+S+ L G+ Y+ASKAA++ + +A EL I VN+V P V T++
Sbjct: 133 GRIINLSTSVIALPLPGYGPYAASKAAVEGLVHVLANELRGRGITVNAVAPGPVATELFF 192
Query: 68 TGWSDP 73
G S
Sbjct: 193 NGKSAE 198
>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 = 55.7 bits (135), Expect = 3e-10
Identities = 27/84 (32%), Positives = 39/84 (46%), Gaps = 6/84 (7%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPY---NIRVNSVQ 57
M++ G IV ++S+AG + G Y ASKAA ++ LEL Y I+ V
Sbjct: 122 MLERN-HGHIVTIASVAGLISPAGLADYCASKAAAVGFHESLRLELKAYGKPGIKTTLVC 180
Query: 58 PTVVMTQMGRTGWSDPAKA-GPML 80
P + T M + G P P+L
Sbjct: 181 PYFINTGMFQ-GVKTPRPLLAPIL 203
>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 = 55.3 bits (134), Expect = 3e-10
Identities = 36/106 (33%), Positives = 47/106 (44%), Gaps = 16/106 (15%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM- 65
G IVNVSS G + Y SKAAL+++TR +A EL I+VN+ P V T M
Sbjct: 130 AGRIVNVSSGLGSLT----SAYGVSKAALNALTRILAKELKETGIKVNACCPGWVKTDMG 185
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFA-----ANANIKFFFKEMGRTGW 106
G P + A+TP+ A KFF + W
Sbjct: 186 GGKAPKTPEEG----AETPV-YLALLPPDGEPTGKFFS-DKKVVPW 225
>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 = 55.3 bits (134), Expect = 3e-10
Identities = 25/58 (43%), Positives = 32/58 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G+IVN+SS AG YSASKA LD +R + E I V S+ P +V T+M
Sbjct: 132 GAIVNISSFAGLIPTPLLATYSASKAFLDFFSRALYEEYKSQGIDVQSLLPYLVATKM 189
>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 = 55.5 bits (134), Expect = 3e-10
Identities = 26/89 (29%), Positives = 41/89 (46%), Gaps = 3/89 (3%)
Query: 7 QGSIVNVSS-IAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G ++N+ + + + H Y+ +KAAL TR MA ELGPY I VN V ++
Sbjct: 132 SGRVINIGTNLFQNPVVPYHD-YTTAKAALLGFTRNMAKELGPYGITVNMVSGGLLKVT- 189
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFAANANI 94
+ + + TPLG+ +I
Sbjct: 190 DASAATPKEVFDAIAQTTPLGKVTTPQDI 218
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 55.3 bits (134), Expect = 3e-10
Identities = 33/104 (31%), Positives = 50/104 (48%), Gaps = 18/104 (17%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELGPYNIRVNSVQPT 59
MI G I++V+SI + L T Y+A+KAAL + +++++ E+ P +RVN+V P
Sbjct: 125 MIARG-SGVIIHVTSIQRRLPLPESTTAYAAAKAALSTYSKSLSKEVAPKGVRVNTVSPG 183
Query: 60 VVMT------------QMGRTGWSDPAKAGPM--LAKTPLGRFA 89
+ T G + AK M L PLGR A
Sbjct: 184 WIETEAAVALAERLAEAAGTD--YEGAKQIIMDSLGGIPLGRPA 225
>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 = 54.8 bits (132), Expect = 5e-10
Identities = 31/94 (32%), Positives = 48/94 (51%), Gaps = 6/94 (6%)
Query: 1 MIDHKIQGSIVNVSSIAGK-TALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPT 59
M+ K GSI+N+SS+A + +YS +KAA+ +T+++A + IR N++ P
Sbjct: 116 MLARK-DGSIINMSSVASSIKGVPNRFVYSTTKAAVIGLTKSVAADFAQQGIRCNAICPG 174
Query: 60 VVMTQMGRT---GWSDPAKA-GPMLAKTPLGRFA 89
V T DP +A A+ PLGR A
Sbjct: 175 TVDTPSLEERIQAQPDPEEALKAFAARQPLGRLA 208
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 54.9 bits (133), Expect = 5e-10
Identities = 28/80 (35%), Positives = 43/80 (53%), Gaps = 14/80 (17%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+G IVN++S+ G + G Y SK AL+ I+ ++A E+ P+ I V +V+P G
Sbjct: 129 RGHIVNITSMGGLITMPGIGYYCGSKFALEGISESLAKEVAPFGIHVTAVEP-------G 181
Query: 67 --RTGWSDPAKAGPMLAKTP 84
RT W AG + +TP
Sbjct: 182 SFRTDW-----AGRSMVRTP 196
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 55.0 bits (133), Expect = 5e-10
Identities = 33/97 (34%), Positives = 45/97 (46%), Gaps = 11/97 (11%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M+ +G +V SS+AG Y ASK AL++I M EL P+ I+V +V P
Sbjct: 119 MVARG-KGKVVFTSSMAGLITGPFTGAYCASKHALEAIAEAMHAELKPFGIQVATVNPGP 177
Query: 61 VMTQMGRTG------WSDPAKA---GPMLAKTPLGRF 88
+T T W DPA+ LA PL +F
Sbjct: 178 YLTGFNDTMAETPKRWYDPARNFTDPEDLA-FPLEQF 213
>gnl|CDD|187638 cd08933, RDH_SDR_c, retinal dehydrogenase-like, classical (c) SDR.
These classical SDRs includes members identified as
retinol dehydrogenases, which convert retinol to
retinal, a property that overlaps with 17betaHSD
activity. 17beta-dehydrogenases are a group of isozymes
that catalyze activation and inactivation of estrogen
and androgens, and include members of the short-chain
dehydrogenases/reductase family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 261
Score = 54.8 bits (132), Expect = 6e-10
Identities = 28/96 (29%), Positives = 46/96 (47%), Gaps = 12/96 (12%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
K QG+I+N+SS+ G + Y A+K A+ ++T+ +A++ Y +RVN + P + T
Sbjct: 136 KSQGNIINLSSLVGSIGQKQAAPYVATKGAITAMTKALAVDESRYGVRVNCISPGNIWTP 195
Query: 65 MGRTGWSDPAKAGPMLAKT--------PLGRFAANA 92
+ W + A P T LGR A
Sbjct: 196 L----WEELAAQTPDTLATIKEGELAQLLGRMGTEA 227
>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 = 54.8 bits (132), Expect = 7e-10
Identities = 29/86 (33%), Positives = 49/86 (56%), Gaps = 5/86 (5%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSI+N+SS+ + L YSA+KAA+ + T+ +A+E +RVN++ P +T R
Sbjct: 148 GSIINISSMNAFSPLTKVPAYSAAKAAVSNFTQWLAVEFATTGVRVNAIAPGFFVTPQNR 207
Query: 68 TGWSDP-----AKAGPMLAKTPLGRF 88
+P ++ +L +TP+GRF
Sbjct: 208 KLLINPDGSYTDRSNKILGRTPMGRF 233
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 54.5 bits (132), Expect = 7e-10
Identities = 25/67 (37%), Positives = 32/67 (47%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G+IVNV S+ YSASKAA S+T+ + EL P RV V P + T M
Sbjct: 126 GAIVNVLSVLSWVNFPNLGTYSASKAAAWSLTQALRAELAPQGTRVLGVHPGPIDTDMAA 185
Query: 68 TGWSDPA 74
+ A
Sbjct: 186 GLDAPKA 192
>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 = 54.0 bits (130), Expect = 9e-10
Identities = 30/107 (28%), Positives = 44/107 (41%), Gaps = 6/107 (5%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G+IVN++S+A YSASK+A S+T+ + EL V SV P + T+M
Sbjct: 126 GGAIVNLNSVASLKNFPAMGTYSASKSAAYSLTQGLRAELAAQGTLVLSVHPGPIDTRM- 184
Query: 67 RTGWSDPAKAGPML-AKTPLGRFAANAN---IKFFFKEMGRTGWSDP 109
+ K P A+ L A K++ S P
Sbjct: 185 -AAGAGGPKESPETVAEAVLKALKAGEFHVFPDEMAKQVKEAYQSFP 230
>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 = 54.1 bits (130), Expect = 1e-09
Identities = 26/56 (46%), Positives = 34/56 (60%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G+IVNV S+AGK A +G Y+ASK L ++ L+L NIRV +V P V T
Sbjct: 126 GTIVNVGSLAGKNAFKGGAAYNASKFGLLGLSEAAMLDLREANIRVVNVMPGSVDT 181
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 54.2 bits (131), Expect = 1e-09
Identities = 25/70 (35%), Positives = 38/70 (54%), Gaps = 8/70 (11%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
GSIV ++S+ + + + Y +K AL + ++++A ELGP IRVNSV P +
Sbjct: 133 GGSIVMINSMVLRHSQPKYGAYKMAKGALLAASQSLATELGPQGIRVNSVAPGYI----- 187
Query: 67 RTGWSDPAKA 76
W DP K
Sbjct: 188 ---WGDPLKG 194
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 54.0 bits (130), Expect = 1e-09
Identities = 28/88 (31%), Positives = 47/88 (53%), Gaps = 1/88 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M+ + G I+N+ S+ + + T Y+ASK A+ +TR M +EL +NI+VN + P
Sbjct: 132 MVKRQ-AGKIINICSMQSELGRDTITPYAASKGAVKMLTRGMCVELARHNIQVNGIAPGY 190
Query: 61 VMTQMGRTGWSDPAKAGPMLAKTPLGRF 88
T+M + D A + +TP R+
Sbjct: 191 FKTEMTKALVEDEAFTAWLCKRTPAARW 218
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 53.6 bits (129), Expect = 1e-09
Identities = 25/58 (43%), Positives = 39/58 (67%), Gaps = 2/58 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGP--YNIRVNSVQPTVVMT 63
SIVN+SS+A A +T Y+ASKAA+ S+T+++AL+ ++R NS+ PT + T
Sbjct: 131 ASIVNISSVAAFKAEPDYTAYNASKAAVASLTKSIALDCARRGLDVRCNSIHPTFIRT 188
>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 = 53.8 bits (130), Expect = 1e-09
Identities = 25/83 (30%), Positives = 38/83 (45%), Gaps = 5/83 (6%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N +S+A G YSASK + +T +A +L P IRV ++ P + T +
Sbjct: 139 GVIINTASVAAFEGQIGQAAYSASKGGIVGMTLPIARDLAPQGIRVVTIAPGLFDTPLL- 197
Query: 68 TGWSDPAKAGPMLAKT--PLGRF 88
G + + LAK R
Sbjct: 198 AGLPEKVRDF--LAKQVPFPSRL 218
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 53.6 bits (129), Expect = 1e-09
Identities = 28/90 (31%), Positives = 46/90 (51%), Gaps = 7/90 (7%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
D K G I+N++S + + G Y+A+K A+D++T ++A E+ I VN++ P
Sbjct: 141 GFDKKSGGRIINMTSGQFQGPMVGELAYAATKGAIDALTSSLAAEVAHLGITVNAINPGP 200
Query: 61 VMTQMGRTGW-SDPAKAGPMLAKTPLGRFA 89
TGW ++ K G +L P GR
Sbjct: 201 T-----DTGWMTEEIKQG-LLPMFPFGRIG 224
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 53.4 bits (129), Expect = 1e-09
Identities = 21/58 (36%), Positives = 31/58 (53%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G IVN++S Y ASK A+ +TR++A ELG I VN++ P + T+
Sbjct: 136 GRIVNLASDTALWGAPKLGAYVASKGAVIGMTRSLARELGGRGITVNAIAPGLTATEA 193
>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 = 53.4 bits (129), Expect = 2e-09
Identities = 20/49 (40%), Positives = 31/49 (63%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
GSIV +S + + + G+ + +KAAL+S R +A ELG IRVN++
Sbjct: 134 GSIVTLSYLGSERVVPGYNVMGVAKAALESSVRYLAYELGRKGIRVNAI 182
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 53.4 bits (129), Expect = 2e-09
Identities = 23/58 (39%), Positives = 33/58 (56%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G +VNV+S+AGK + G Y ASK A+ T LEL + V+ V P+ V T++
Sbjct: 130 GHVVNVASLAGKIPVPGMATYCASKHAVVGFTDAARLELRGTGVHVSVVLPSFVNTEL 187
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 53.4 bits (129), Expect = 2e-09
Identities = 35/84 (41%), Positives = 47/84 (55%), Gaps = 4/84 (4%)
Query: 9 SIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ-MGR 67
SIV SI + ++Y+ASKAAL S+ +T++ EL P IRVN+V P V T G+
Sbjct: 131 SIVLNGSINAHIGMPNSSVYAASKAALLSLAKTLSGELLPRGIRVNAVSPGPVQTPLYGK 190
Query: 68 TGWSD---PAKAGPMLAKTPLGRF 88
G + A A + A PLGRF
Sbjct: 191 LGLPEATLDAVAAQIQALVPLGRF 214
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 53.2 bits (128), Expect = 2e-09
Identities = 30/82 (36%), Positives = 42/82 (51%), Gaps = 6/82 (7%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G+IVN SS A A Y +K L+ +T+ +A ELG NIRVN++ P + T+ R
Sbjct: 138 GAIVNQSSTA---AWLYSNFYGLAKVGLNGLTQQLARELGGMNIRVNAIAPGPIDTEATR 194
Query: 68 TGWSDPAK-AGPMLAKTPLGRF 88
T P + M+ PL R
Sbjct: 195 T--VTPKEFVADMVKGIPLSRM 214
>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 = 53.1 bits (128), Expect = 2e-09
Identities = 28/91 (30%), Positives = 42/91 (46%), Gaps = 10/91 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S G A + Y A+K L +T+ +ALE+ + I VN++ P V T +
Sbjct: 130 GRIINIASAHGLVASPFKSAYVAAKHGLIGLTKVLALEVAEHGITVNAICPGYVRTPLVE 189
Query: 68 TGWSDPAKA----------GPMLAKTPLGRF 88
+D AK ML P RF
Sbjct: 190 KQIADQAKTRGIPEEQVIREVMLKGQPTKRF 220
>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 = 52.3 bits (126), Expect = 4e-09
Identities = 26/79 (32%), Positives = 36/79 (45%), Gaps = 4/79 (5%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALEL-GPYNIRVNSVQPTVVMTQMG 66
G IVN+ S+AG +YSASK + TR++A L +RVN++ P T +
Sbjct: 134 GVIVNIGSVAGLYPAPQFPVYSASKHGVVGFTRSLADLLEYKTGVRVNAICPGFTNTPLL 193
Query: 67 RTGWSDPAKAGPMLAKTPL 85
AK ML P
Sbjct: 194 PD---LVAKEAEMLPSAPT 209
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 52.3 bits (126), Expect = 4e-09
Identities = 21/58 (36%), Positives = 36/58 (62%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
MI IQG I+ ++S +GK + ++ YSA+K +T+++AL+L Y I V+S+
Sbjct: 127 MIRDGIQGRIIQINSKSGKVGSKHNSGYSAAKFGGVGLTQSLALDLAEYGITVHSLML 184
>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 = 52.5 bits (126), Expect = 4e-09
Identities = 32/106 (30%), Positives = 48/106 (45%), Gaps = 11/106 (10%)
Query: 2 IDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVV 61
G I+N +SIAG + YS++K A+ +T+T A EL P I VN+ P +V
Sbjct: 124 KKQGHGGKIINAASIAGHEGNPILSAYSSTKFAVRGLTQTAAQELAPKGITVNAYCPGIV 183
Query: 62 MTQMGRTGWSDPAKAGPMLAKTPLGRFAANANIKFFFKE--MGRTG 105
T M W + + +A P+G + F E +GR
Sbjct: 184 KTPM----WEEIDEETSEIAGKPIGE-----GFEEFSSEIALGRPS 220
>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 = 52.3 bits (126), Expect = 5e-09
Identities = 26/83 (31%), Positives = 43/83 (51%), Gaps = 7/83 (8%)
Query: 8 GSIVNVSSIAGKTALEGHTI---YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
SI+N +S+ TA +G Y+A+K A+ + TR ++L+L IRVN+V P + T
Sbjct: 156 SSIINTTSV---TAYKGSPHLLDYAATKGAIVAFTRGLSLQLAEKGIRVNAVAPGPIWTP 212
Query: 65 MGRTGWSDPAKAGPMLAKTPLGR 87
+ K ++ P+GR
Sbjct: 213 L-IPSSFPEEKVSEFGSQVPMGR 234
>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 = 52.0 bits (125), Expect = 5e-09
Identities = 27/87 (31%), Positives = 44/87 (50%), Gaps = 2/87 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N+SS+ G+ G T YSA+KA + T+ +A E + VN++ P + T M
Sbjct: 130 GRIINISSVNGQKGQFGQTNYSAAKAGMIGFTKALAQEGATKGVTVNTISPGYIATDMVM 189
Query: 68 TGWSDPAKAGPMLAKTPLGRFAANANI 94
D + ++A+ P+GR I
Sbjct: 190 AMREDVLNS--IVAQIPVGRLGRPEEI 214
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 51.9 bits (125), Expect = 6e-09
Identities = 23/57 (40%), Positives = 31/57 (54%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G I+NVSSIA + A Y SKAAL + T+ +A E + IRV ++ V T
Sbjct: 134 GGLIINVSSIAARNAFPQWGAYCVSKAALAAFTKCLAEEERSHGIRVCTITLGAVNT 190
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 51.9 bits (125), Expect = 6e-09
Identities = 19/58 (32%), Positives = 24/58 (41%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
SIV VSS+ Y SKA L + A L I V V+P ++ T M
Sbjct: 140 RSIVFVSSVNAIMVSPNRGEYCISKAGLSMAAQLFAARLAEEGIGVYEVRPGLIKTDM 197
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 52.0 bits (125), Expect = 6e-09
Identities = 25/72 (34%), Positives = 38/72 (52%), Gaps = 3/72 (4%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GSIVN++S + G Y +K L +TR + +E N+RVN++ P + TQ+
Sbjct: 138 GSIVNIASTHAFKIIPGCFPYPVAKHGLLGLTRALGIEYAARNVRVNAIAPGYIETQLTE 197
Query: 68 TGWS---DPAKA 76
W+ DPA A
Sbjct: 198 DWWNAQPDPAAA 209
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 51.6 bits (124), Expect = 8e-09
Identities = 24/62 (38%), Positives = 36/62 (58%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M G IVN +S+ G A G Y+A+KA + ++TR ALE Y +R+N+V P++
Sbjct: 143 MRARGHGGVIVNNASVLGWRAQHGQAHYAAAKAGVMALTRCSALEAAEYGVRINAVAPSI 202
Query: 61 VM 62
M
Sbjct: 203 AM 204
>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 = 51.5 bits (124), Expect = 8e-09
Identities = 23/52 (44%), Positives = 30/52 (57%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
G IV VSS A + G++ Y SK AL + ++ EL PYNIRV+ V P
Sbjct: 133 PGHIVFVSSQAALVGIYGYSAYCPSKFALRGLAESLRQELKPYNIRVSVVYP 184
>gnl|CDD|180796 PRK07023, PRK07023, short chain dehydrogenase; Provisional.
Length = 243
Score = 51.6 bits (124), Expect = 8e-09
Identities = 26/73 (35%), Positives = 41/73 (56%), Gaps = 1/73 (1%)
Query: 10 IVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTG 69
I+++SS A + A G ++Y A+KAALD R +AL+ +R+ S+ P VV T M T
Sbjct: 132 ILHISSGAARNAYAGWSVYCATKAALDHHARAVALD-ANRALRIVSLAPGVVDTGMQATI 190
Query: 70 WSDPAKAGPMLAK 82
+ + PM +
Sbjct: 191 RATDEERFPMRER 203
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 51.2 bits (122), Expect = 1e-08
Identities = 24/58 (41%), Positives = 38/58 (65%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+++SSI G+ G T YSA+KA + T+++ALEL N+ VN++ P + T+M
Sbjct: 136 GRIISISSIIGQAGGFGQTNYSAAKAGMLGFTKSLALELAKTNVTVNAICPGFIDTEM 193
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 51.3 bits (123), Expect = 1e-08
Identities = 31/87 (35%), Positives = 50/87 (57%), Gaps = 8/87 (9%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM-- 65
GSI+N SS +G+ A + Y+A+K A+ + T+++A+E G IR N++ P + T +
Sbjct: 134 GSIINTSSFSGQAADLYRSGYNAAKGAVINFTKSIAIEYGRDGIRANAIAPGTIETPLVD 193
Query: 66 GRTGWSDPAKAGPMLAK-----TPLGR 87
TG S+ +AG + TPLGR
Sbjct: 194 KLTGTSED-EAGKTFRENQKWMTPLGR 219
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 50.7 bits (122), Expect = 2e-08
Identities = 23/52 (44%), Positives = 33/52 (63%), Gaps = 2/52 (3%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
G+IVNVSSIA T YSA+K ++++T ++A E + IRVN+V P
Sbjct: 136 GGAIVNVSSIA--TRGINRVPYSAAKGGVNALTASLAFEYAEHGIRVNAVAP 185
>gnl|CDD|131732 TIGR02685, pter_reduc_Leis, pteridine reductase. Pteridine
reductase is an enzyme used by trypanosomatids
(including Trypanosoma cruzi and Leishmania major) to
obtain reduced pteridines by salvage rather than
biosynthetic pathways. Enzymes in T. cruzi described as
pteridine reductase 1 (PTR1) and pteridine reductase 2
(PTR2) have different activity profiles. PTR1 is more
active with with fully oxidized biopterin and folate
than with reduced forms, while PTR2 reduces
dihydrobiopterin and dihydrofolate but not oxidized
pteridines. T. cruzi PTR1 and PTR2 are more similar to
each other in sequence than either is to the pteridine
reductase of Leishmania major, and all are included in
this family.
Length = 267
Score = 50.7 bits (121), Expect = 2e-08
Identities = 32/86 (37%), Positives = 45/86 (52%), Gaps = 8/86 (9%)
Query: 9 SIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP--TVVMTQMG 66
SIVN+ L G T+Y+ +K AL+ +TR+ ALEL P IRVN V P +++ M
Sbjct: 154 SIVNLCDAMTDQPLLGFTMYTMAKHALEGLTRSAALELAPLQIRVNGVAPGLSLLPDAMP 213
Query: 67 RTGWSDPAKAGPMLAKTPLGRFAANA 92
D + K PLG+ A+A
Sbjct: 214 FEVQEDYRR------KVPLGQREASA 233
>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 = 50.6 bits (121), Expect = 2e-08
Identities = 28/87 (32%), Positives = 46/87 (52%), Gaps = 6/87 (6%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM-- 65
G IVN +S+ G + + Y+A+K + +TR A+E G Y IR+N++ P ++T M
Sbjct: 135 GMIVNTASVGGIRGVGNQSGYAAAKHGVVGLTRNSAVEYGQYGIRINAIAPGAILTPMVE 194
Query: 66 ---GRTGWSDPAKAGPMLAK-TPLGRF 88
+ G +P +AG P+ RF
Sbjct: 195 GSLKQLGPENPEEAGEEFVSVNPMKRF 221
>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 = 50.5 bits (121), Expect = 2e-08
Identities = 21/58 (36%), Positives = 36/58 (62%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
MI IQG I+ ++S +GK + ++ YSA+K +T+++AL+L + I VNS+
Sbjct: 126 MIRDGIQGRIIQINSKSGKVGSKHNSGYSAAKFGGVGLTQSLALDLAEHGITVNSLML 183
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 50.4 bits (121), Expect = 2e-08
Identities = 21/58 (36%), Positives = 29/58 (50%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
M K +G+IVN+ S++ Y ASK AL ++TR A L IRVN +
Sbjct: 130 MRRRKAEGTIVNIGSMSAHGGQPFLAAYCASKGALATLTRNAAYALLRNRIRVNGLNI 187
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 50.0 bits (120), Expect = 2e-08
Identities = 21/56 (37%), Positives = 31/56 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G I+N+SS+AG G Y+ASK L + L+L Y I+V+++ P V T
Sbjct: 133 GYIINISSLAGTNFFAGGAAYNASKFGLVGFSEAAMLDLRQYGIKVSTIMPGSVAT 188
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 50.6 bits (121), Expect = 2e-08
Identities = 27/85 (31%), Positives = 41/85 (48%), Gaps = 2/85 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVM--TQM 65
G+IV ++S A + + YSA+KAA + R +A E G Y IRVN+V P V+ + +
Sbjct: 546 GNIVFIASKNAVYAGKNASAYSAAKAAEAHLARCLAAEGGTYGIRVNTVNPDAVLQGSGI 605
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFAA 90
W + A + L A
Sbjct: 606 WDGEWREERAAAYGIPADELEEHYA 630
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 50.4 bits (121), Expect = 3e-08
Identities = 25/76 (32%), Positives = 36/76 (47%), Gaps = 3/76 (3%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+G IV VSS+AG T + + Y+ASK AL ++ +EL + V V P V T +
Sbjct: 129 RGQIVVVSSLAGLTGVPTRSGYAASKHALHGFFDSLRIELADDGVAVTVVCPGFVATDIR 188
Query: 67 RTGWS---DPAKAGPM 79
+ P PM
Sbjct: 189 KRALDGDGKPLGKSPM 204
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 50.2 bits (120), Expect = 3e-08
Identities = 28/65 (43%), Positives = 39/65 (60%), Gaps = 1/65 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI K +GSIV++ S+A G Y+ SK A+ +TR++A ELG + IRVN V P
Sbjct: 142 MIPLK-KGSIVSLCSVASAIGGLGPHAYTGSKHAVLGLTRSVAAELGKHGIRVNCVSPYA 200
Query: 61 VMTQM 65
V T +
Sbjct: 201 VPTAL 205
>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 = 49.8 bits (119), Expect = 3e-08
Identities = 28/79 (35%), Positives = 41/79 (51%), Gaps = 7/79 (8%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M++ + QG IVNVSSIA + YSA+K ++++T ++A E IRVN+V P
Sbjct: 127 MLERQ-QGVIVNVSSIATRGIY--RIPYSAAKGGVNALTASLAFEHARDGIRVNAVAPGG 183
Query: 61 VMTQMGRTGWSDPAKAGPM 79
+ P A PM
Sbjct: 184 TEAPPRKI----PRNAAPM 198
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 50.0 bits (119), Expect = 3e-08
Identities = 32/89 (35%), Positives = 47/89 (52%), Gaps = 5/89 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTI--YSASKAALDSITRTMALELGPYNIRVNSVQP 58
M+ G I+N +S++G + Y ASKAA+ +T+ MA+EL P+ IRVNSV P
Sbjct: 132 MVKQGQGGVIINTASMSGHIINVPQQVSHYCASKAAVIHLTKAMAVELAPHKIRVNSVSP 191
Query: 59 TVVMTQMGRTGWSDPAKAGPMLAKTPLGR 87
++T++ P K PLGR
Sbjct: 192 GYILTELVEPYTEYQPLWEP---KIPLGR 217
>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 = 50.0 bits (120), Expect = 3e-08
Identities = 26/84 (30%), Positives = 43/84 (51%), Gaps = 4/84 (4%)
Query: 8 GSIVNVSSIAGKTALEGHTI--YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
GS++ +S++G Y+ASKAA+ + +++A+E Y IRVNS+ P + T +
Sbjct: 138 GSLIITASMSGTIVNRPQPQAAYNASKAAVIHLAKSLAVEWAKYFIRVNSISPGYIDTDL 197
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFA 89
T + D + PL R A
Sbjct: 198 --TDFVDKELRKKWESYIPLKRIA 219
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 50.0 bits (120), Expect = 3e-08
Identities = 26/68 (38%), Positives = 35/68 (51%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M+ G +VNVSS AG AL H YSASK L ++ + +L + I V+ V P
Sbjct: 124 MVAAGRGGHLVNVSSAAGLVALPWHAAYSASKFGLRGLSEVLRFDLARHGIGVSVVVPGA 183
Query: 61 VMTQMGRT 68
V T + T
Sbjct: 184 VKTPLVNT 191
>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 = 49.6 bits (119), Expect = 4e-08
Identities = 19/68 (27%), Positives = 30/68 (44%), Gaps = 11/68 (16%)
Query: 1 MIDHKIQGSIVNVSSIAG----------KTALEGHTIYSASKAALDSITRTMALELGPYN 50
+GSI+N++SI G T + YS KA + +T+ +A
Sbjct: 129 FKKQG-KGSIINIASIYGVIAPDFRIYENTQMYSPVEYSVIKAGIIHLTKYLAKYYADTG 187
Query: 51 IRVNSVQP 58
IRVN++ P
Sbjct: 188 IRVNAISP 195
>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 = 49.6 bits (119), Expect = 4e-08
Identities = 25/64 (39%), Positives = 35/64 (54%), Gaps = 3/64 (4%)
Query: 7 QGSIVNVSSIAGK---TALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
+ I+N+SS G G Y ASKAAL+ +T+++A+EL I V S+ P V T
Sbjct: 127 RAKIINISSRVGSIGDNTSGGWYSYRASKAALNMLTKSLAVELKRDGITVVSLHPGWVRT 186
Query: 64 QMGR 67
MG
Sbjct: 187 DMGG 190
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 49.6 bits (119), Expect = 4e-08
Identities = 32/92 (34%), Positives = 46/92 (50%), Gaps = 8/92 (8%)
Query: 2 IDHKIQGS-IVNVSSIAGKTALEGHTI---YSASKAALDSITRTMALELGPYNIRVNSVQ 57
+ H QGS I+N SI T EG+ YSA+K A+ + TR++A L IRVN+V
Sbjct: 168 LPHLKQGSAIINTGSI---TGYEGNETLIDYSATKGAIHAFTRSLAQSLVQKGIRVNAVA 224
Query: 58 PTVVMTQMGRTGWSDPAKAGPMLAKTPLGRFA 89
P + T + + D K + TP+ R
Sbjct: 225 PGPIWTPLIPSD-FDEEKVSQFGSNTPMQRPG 255
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 49.2 bits (118), Expect = 5e-08
Identities = 28/82 (34%), Positives = 41/82 (50%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N+ SIA A G Y+ASK AL T+ +AL+ I+V + P V T M
Sbjct: 120 GIIINMCSIASFVAGGGGAAYTASKHALAGFTKQLALDYAKDGIQVFGIAPGAVKTPMTA 179
Query: 68 TGWSDPAKAGPMLAKTPLGRFA 89
+ A + +TP+ R+A
Sbjct: 180 ADFEPGGLADWVARETPIKRWA 201
>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 = 49.4 bits (118), Expect = 5e-08
Identities = 30/81 (37%), Positives = 45/81 (55%), Gaps = 3/81 (3%)
Query: 9 SIVNVSSIAG--KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
++N+ SIAG + LE ++ Y ASKAA+ +TR +A EL +I VN++ P ++M
Sbjct: 139 RVINIGSIAGIVVSGLENYS-YGASKAAVHQLTRKLAKELAGEHITVNAIAPGRFPSKMT 197
Query: 67 RTGWSDPAKAGPMLAKTPLGR 87
+DPA PLGR
Sbjct: 198 AFLLNDPAALEAEEKSIPLGR 218
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 49.3 bits (118), Expect = 6e-08
Identities = 34/115 (29%), Positives = 51/115 (44%), Gaps = 18/115 (15%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG- 66
G I+ +SSI G +A IY ASK AL+ ++ +A E+ + I+V V+P G
Sbjct: 129 GHIIQISSIGGISAFPMSGIYHASKWALEGMSEALAQEVAEFGIKVTLVEP-------GG 181
Query: 67 -RTGWSDPA--KAGPMLAKTPLGRFAANANIKFFFKEMGRTGWSDPAKAGPMLAK 118
T W+ + +A P+ A L A + R+ DP A L K
Sbjct: 182 YSTDWAGTSAKRATPLDAYDTLREELAEQWSE-------RSVDGDPEAAAEALLK 229
>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 = 48.9 bits (117), Expect = 6e-08
Identities = 21/58 (36%), Positives = 32/58 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G +V +SS+A L G YSASKAAL S+ ++ ++ IRV + P + T +
Sbjct: 127 GHLVLISSVAALRGLPGAAAYSASKAALSSLAESLRYDVKKRGIRVTVINPGFIDTPL 184
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 48.9 bits (117), Expect = 7e-08
Identities = 23/65 (35%), Positives = 36/65 (55%), Gaps = 2/65 (3%)
Query: 3 DHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALE--LGPYNIRVNSVQPTV 60
D K+ ++N+SS A K G + Y +SKA LD T+T+A E Y +++ + P V
Sbjct: 129 DWKVDKRVINISSGAAKNPYFGWSAYCSSKAGLDMFTQTVATEQEEEEYPVKIVAFSPGV 188
Query: 61 VMTQM 65
+ T M
Sbjct: 189 MDTNM 193
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 48.9 bits (117), Expect = 7e-08
Identities = 26/85 (30%), Positives = 41/85 (48%), Gaps = 5/85 (5%)
Query: 3 DHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVM 62
D K G I+N++S + Y+A+K A+++ T+++A EL I VN+V P
Sbjct: 142 DGKAGGRIINLTSGQSLGPMPDELAYAATKGAIEAFTKSLAPELAEKGITVNAVNPGPT- 200
Query: 63 TQMGRTGWSDPAKAGPMLAKTPLGR 87
TGW ++ K P GR
Sbjct: 201 ----DTGWITEELKHHLVPKFPQGR 221
>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 = 48.7 bits (116), Expect = 8e-08
Identities = 30/90 (33%), Positives = 44/90 (48%), Gaps = 9/90 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG- 66
G I+N++S GK + YSASK + T+ + LEL I VN+V P V T M
Sbjct: 134 GRIINIASTGGKQGVVHAAPYSASKHGVVGFTKALGLELARTGITVNAVCPGFVETPMAA 193
Query: 67 --RTGWSDPAKAGP------MLAKTPLGRF 88
R ++D + + A+ PLGR+
Sbjct: 194 SVREHYADIWEVSTEEAFDRITARVPLGRY 223
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A; Provisional.
Length = 256
Score = 48.4 bits (116), Expect = 9e-08
Identities = 23/62 (37%), Positives = 33/62 (53%), Gaps = 10/62 (16%)
Query: 7 QGSIVNVSSIAGKTA-----LEGHTI-----YSASKAALDSITRTMALELGPYNIRVNSV 56
G++VN+SSI G A EG ++ Y+A KA + +T+ +A NIRVN V
Sbjct: 137 GGNLVNISSIYGVVAPKFEIYEGTSMTSPVEYAAIKAGIIHLTKYLAKYFKDSNIRVNCV 196
Query: 57 QP 58
P
Sbjct: 197 SP 198
>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 = 48.5 bits (116), Expect = 1e-07
Identities = 21/52 (40%), Positives = 29/52 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPT 59
G I+N SS AG G YSA+K L ++ T+A+E YNI N++ P
Sbjct: 140 GRIINTSSAAGLYGNFGQANYSAAKLGLLGLSNTLAIEGAKYNITCNTIAPA 191
>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 = 48.2 bits (115), Expect = 1e-07
Identities = 24/91 (26%), Positives = 38/91 (41%), Gaps = 5/91 (5%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNS-----VQPTVV 61
QG I+N+S G Y+A KA + +T +A EL + I VNS T
Sbjct: 143 QGHILNISPPLSLRPARGDVAYAAGKAGMSRLTLGLAAELRRHGIAVNSLWPSTAIETPA 202
Query: 62 MTQMGRTGWSDPAKAGPMLAKTPLGRFAANA 92
T++ A++ +L+ L + A
Sbjct: 203 ATELSGGSDPARARSPEILSDAVLAILSRPA 233
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 48.3 bits (116), Expect = 1e-07
Identities = 26/91 (28%), Positives = 41/91 (45%), Gaps = 10/91 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S+ G G Y ++K L +T+ +ALE + + VN++ P V T + R
Sbjct: 133 GRIINMASVHGLVGSAGKAAYVSAKHGLIGLTKVVALEGATHGVTVNAICPGYVDTPLVR 192
Query: 68 TGWSDPAKAGP----------MLAKTPLGRF 88
D AK +L P RF
Sbjct: 193 KQIPDLAKERGISEEEVLEDVLLPLVPQKRF 223
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 47.2 bits (113), Expect = 1e-07
Identities = 14/40 (35%), Positives = 20/40 (50%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALEL 46
G+ V SS+AG G Y+A+ AALD++ E
Sbjct: 127 LGAFVLFSSVAGVLGSPGQANYAAANAALDALAEHRRAEG 166
>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 = 47.9 bits (114), Expect = 1e-07
Identities = 18/59 (30%), Positives = 38/59 (64%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
+G+IVN+SS+AG+ A+ +Y+A+K +++ + + E+ +RV ++P V T++
Sbjct: 131 KGTIVNISSVAGRVAVRNSAVYNATKFGVNAFSEGLRQEVTERGVRVVVIEPGTVDTEL 189
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 48.0 bits (114), Expect = 2e-07
Identities = 25/87 (28%), Positives = 44/87 (50%), Gaps = 2/87 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S+ G T G Y ASKA + ++++A E+ N+ VN V P + + M
Sbjct: 132 GRIINITSVVGVTGNPGQANYCASKAGMIGFSKSLAQEIATRNVTVNCVAPGFIESAM-- 189
Query: 68 TGWSDPAKAGPMLAKTPLGRFAANANI 94
TG + + ++ P+ R A +
Sbjct: 190 TGKLNDKQKEAIMGAIPMKRMGTGAEV 216
>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 = 47.7 bits (114), Expect = 2e-07
Identities = 18/54 (33%), Positives = 35/54 (64%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
+ +G +VNVSS+ G+ Y ASKAA+++ + ++ EL P+ ++V+ ++P
Sbjct: 127 RAKGRVVNVSSMGGRVPFPAGGAYCASKAAVEAFSDSLRRELQPWGVKVSIIEP 180
>gnl|CDD|236308 PRK08594, PRK08594, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 257
Score = 47.8 bits (114), Expect = 2e-07
Identities = 15/51 (29%), Positives = 32/51 (62%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
GSIV ++ + G+ ++ + + +KA+L++ + +A +LG IRVN++
Sbjct: 141 GSIVTLTYLGGERVVQNYNVMGVAKASLEASVKYLANDLGKDGIRVNAISA 191
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 47.6 bits (114), Expect = 2e-07
Identities = 15/49 (30%), Positives = 30/49 (61%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
GSI+ ++ + + + + + +KAAL++ R +A +LG IRVN++
Sbjct: 138 GSILTLTYLGSERVVPNYNVMGVAKAALEASVRYLAADLGKEGIRVNAI 186
>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 = 47.4 bits (113), Expect = 2e-07
Identities = 24/61 (39%), Positives = 30/61 (49%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M I G+IV +S YSA+KAA + R +ALE G IRVN+V P
Sbjct: 123 MKSQGIGGNIVFNASKNAVAPGPNAAAYSAAKAAEAHLARCLALEGGEDGIRVNTVNPDA 182
Query: 61 V 61
V
Sbjct: 183 V 183
>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 = 47.2 bits (112), Expect = 2e-07
Identities = 26/67 (38%), Positives = 39/67 (58%), Gaps = 4/67 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGK--TALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
MI G I+N++S AG+ AL G Y A+KAA+ S+T++ L L + I VN++ P
Sbjct: 123 MIAQGRGGKIINMASQAGRRGEALVGV--YCATKAAVISLTQSAGLNLIRHGINVNAIAP 180
Query: 59 TVVMTQM 65
VV +
Sbjct: 181 GVVDGEH 187
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 47.4 bits (113), Expect = 3e-07
Identities = 33/94 (35%), Positives = 50/94 (53%), Gaps = 12/94 (12%)
Query: 2 IDHKIQGSIVNVSSIAGKTALEGHTIYSAS-KAALDSITRTMALELG-PYNIRVNSVQPT 59
I+ I+G+I+N+ + A G I+SA+ KA + ++TRT+A+E G Y IRVN++ P
Sbjct: 125 IEKGIKGNIINMVATYAWDAGPG-VIHSAAAKAGVLAMTRTLAVEWGRKYGIRVNAIAPG 183
Query: 60 VVMTQMGRTG-----WSDPAKAGPMLAKTPLGRF 88
+ RTG W A + PLGR
Sbjct: 184 PI----ERTGGADKLWESEEAAKRTIQSVPLGRL 213
>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 = 47.2 bits (112), Expect = 3e-07
Identities = 23/65 (35%), Positives = 37/65 (56%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI + G I+ ++S++G G YSA+KA L T+ +A+EL I VN + P +
Sbjct: 122 MIRARQGGRIITLASVSGVMGNRGQVNYSAAKAGLIGATKALAVELAKRKITVNCIAPGL 181
Query: 61 VMTQM 65
+ T+M
Sbjct: 182 IDTEM 186
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 47.0 bits (111), Expect = 3e-07
Identities = 24/64 (37%), Positives = 38/64 (59%)
Query: 10 IVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTG 69
I+N+SS A + +L YS +K A++++T T+A +LG I VN++ P + T M
Sbjct: 140 IINISSAATRISLPDFIAYSMTKGAINTMTFTLAKQLGARGITVNAILPGFIKTDMNAEL 199
Query: 70 WSDP 73
SDP
Sbjct: 200 LSDP 203
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 47.1 bits (112), Expect = 3e-07
Identities = 20/62 (32%), Positives = 35/62 (56%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+G +VN+ S++G Y ASKAA+ +++ + LEL P+ ++V VQP + +Q
Sbjct: 122 RGLVVNIGSVSGVLVTPFAGAYCASKAAVHALSDALRLELAPFGVQVMEVQPGAIASQFA 181
Query: 67 RT 68
Sbjct: 182 SN 183
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 47.0 bits (112), Expect = 4e-07
Identities = 21/53 (39%), Positives = 33/53 (62%), Gaps = 6/53 (11%)
Query: 7 QGSIVNVSSIAGKTAL--EGHTI-YSASKAALDSITRTMALELGPYNIRVNSV 56
SIV V+S+ AL E H + SA++A L ++ +++A EL P +RVNS+
Sbjct: 138 AASIVCVNSL---LALQPEPHMVATSAARAGLLNLVKSLATELAPKGVRVNSI 187
>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 = 46.8 bits (112), Expect = 4e-07
Identities = 28/98 (28%), Positives = 37/98 (37%), Gaps = 17/98 (17%)
Query: 4 HKIQGSIVNVSSIAGKTA--------------LEGHTIYSASKAALDSITRTMALELGPY 49
IVNVSSIA + + Y SK A TR +A L
Sbjct: 126 ASAPSRIVNVSSIAHRAGPIDFNDLDLENNKEYSPYKAYGQSKLANILFTRELARRLEGT 185
Query: 50 NIRVNSVQPTVVMTQMGRTGWSDPAK---AGPMLAKTP 84
+ VN++ P VV T++ R S P L K+P
Sbjct: 186 GVTVNALHPGVVRTELLRRNGSFFLLYKLLRPFLKKSP 223
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 46.8 bits (112), Expect = 4e-07
Identities = 24/58 (41%), Positives = 33/58 (56%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G IV VSSI+G G T Y+ASKA + + + +A L I +N+V P + TQM
Sbjct: 336 GRIVGVSSISGIAGNRGQTNYAASKAGVIGLVQALAPLLAERGITINAVAPGFIETQM 393
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 46.6 bits (111), Expect = 4e-07
Identities = 21/58 (36%), Positives = 32/58 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+N +S AG +YS++K A+ +T+T A +L I VN+ P +V T M
Sbjct: 132 GKIINATSQAGVVGNPELAVYSSTKFAVRGLTQTAARDLASEGITVNAYAPGIVKTPM 189
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 46.6 bits (111), Expect = 4e-07
Identities = 20/51 (39%), Positives = 33/51 (64%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
G I+N+SSI+G+ G + Y +SK AL+ + ++ LEL P+ I V ++P
Sbjct: 133 GKIINISSISGRVGFPGLSPYVSSKYALEGFSESLRLELKPFGIDVALIEP 183
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 46.6 bits (111), Expect = 5e-07
Identities = 31/87 (35%), Positives = 43/87 (49%), Gaps = 7/87 (8%)
Query: 6 IQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
+ I+N SS AG G YSA+KA + ++T A ELG Y + VN++ P
Sbjct: 148 VDARIINTSSGAGLQGSVGQGNYSAAKAGIAALTLVAAAELGRYGVTVNAIAP------A 201
Query: 66 GRTGWSDPAKAGPMLAKTPLGRFAANA 92
RT ++ A M+AK G F A A
Sbjct: 202 ARTRMTETVFAE-MMAKPEEGEFDAMA 227
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 46.3 bits (110), Expect = 5e-07
Identities = 30/88 (34%), Positives = 47/88 (53%), Gaps = 9/88 (10%)
Query: 8 GSIVNVSSIAG----KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
GSIVN++S++G + L+ H Y+ASKA + +++++A+E IRVNS+ P T
Sbjct: 138 GSIVNIASMSGIIVNRGLLQAH--YNASKAGVIHLSKSLAMEWVGRGIRVNSISPGYTAT 195
Query: 64 QMG-RTGWSDPAKAGPMLAKTPLGRFAA 90
M R K +TP+ R A
Sbjct: 196 PMNTRPEMVHQTKL--FEEQTPMQRMAK 221
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 46.1 bits (110), Expect = 7e-07
Identities = 22/61 (36%), Positives = 35/61 (57%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+G++V ++S+AG L G YSASKAA ++ +EL P +RV ++ P + T M
Sbjct: 130 RGTLVGIASVAGVRGLPGAGAYSASKAAAIKYLESLRVELRPAGVRVVTIAPGYIRTPMT 189
Query: 67 R 67
Sbjct: 190 A 190
>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 = 46.3 bits (110), Expect = 7e-07
Identities = 20/70 (28%), Positives = 30/70 (42%), Gaps = 5/70 (7%)
Query: 1 MIDH-----KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNS 55
M++ SI+ V+SI Y SKA L TR +A L I V+
Sbjct: 127 MVEQPDRFDGPHRSIIFVTSINAYLVSPNRGEYCISKAGLSMATRLLAYRLADEGIAVHE 186
Query: 56 VQPTVVMTQM 65
++P ++ T M
Sbjct: 187 IRPGLIHTDM 196
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 46.2 bits (110), Expect = 8e-07
Identities = 26/82 (31%), Positives = 46/82 (56%), Gaps = 4/82 (4%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G IVN++S+AG + Y+ +KA + +++ T+ +EL I V+ V P+ T +
Sbjct: 129 GRIVNIASMAGLMQGPAMSSYNVAKAGVVALSETLLVELADDEIGVHVVCPSFFQTNLLD 188
Query: 68 TGWS-DPA-KA--GPMLAKTPL 85
+ +PA KA G +L K+P+
Sbjct: 189 SFRGPNPAMKAQVGKLLEKSPI 210
>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 = 45.8 bits (109), Expect = 8e-07
Identities = 25/95 (26%), Positives = 39/95 (41%), Gaps = 6/95 (6%)
Query: 1 MIDH---KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQ 57
+ H + + +IVNVSS + + +Y A+KAAL S T + +L + V +
Sbjct: 122 FLPHLKKQPEATIVNVSSGLAFVPMAANPVYCATKAALHSYTLALRHQLKDTGVEVVEIV 181
Query: 58 PTVVMTQMGRTGWSDPAKAGPMLAKTPLGRFAANA 92
P V T++ G K PL F
Sbjct: 182 PPAVDTELHE---ERRNPDGGTPRKMPLDEFVDEV 213
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 45.9 bits (109), Expect = 9e-07
Identities = 21/56 (37%), Positives = 32/56 (57%), Gaps = 1/56 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
M + G I+N+ + + + + Y+ +KAAL +TR +A ELGPY I VN V
Sbjct: 133 MREQG-FGRIINIGTNLFQNPVVPYHDYTTAKAALLGLTRNLAAELGPYGITVNMV 187
>gnl|CDD|181020 PRK07533, PRK07533, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 258
Score = 45.7 bits (109), Expect = 1e-06
Identities = 20/56 (35%), Positives = 33/56 (58%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
GS++ +S + +E + + KAAL+S R +A ELGP IRV+++ P + T
Sbjct: 142 GSLLTMSYYGAEKVVENYNLMGPVKAALESSVRYLAAELGPKGIRVHAISPGPLKT 197
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 45.1 bits (107), Expect = 1e-06
Identities = 28/90 (31%), Positives = 49/90 (54%), Gaps = 2/90 (2%)
Query: 7 QGSIVNVSS-IAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
+GSI+N +S +A + Y+ASK + +++R + ++ IRVN++ P V T +
Sbjct: 132 KGSIINTASFVAVMGSATSQISYTASKGGVLAMSRELGVQFARQGIRVNALCPGPVNTPL 191
Query: 66 GRTGWS-DPAKAGPMLAKTPLGRFAANANI 94
+ ++ DP +A L P+GRFA I
Sbjct: 192 LQELFAKDPERAARRLVHVPMGRFAEPEEI 221
>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 = 44.9 bits (107), Expect = 2e-06
Identities = 20/58 (34%), Positives = 28/58 (48%), Gaps = 1/58 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
GSI S I + + G + AL+ R A+EL P IR+N+V P VV +
Sbjct: 104 GSITLTSGILAQRPIPGGAAAATVNGALEGFVRAAAIEL-PRGIRINAVSPGVVEESL 160
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 44.9 bits (107), Expect = 2e-06
Identities = 25/70 (35%), Positives = 37/70 (52%), Gaps = 5/70 (7%)
Query: 25 HTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAGPMLAKTP 84
H Y+ASKAALD++T + A +L P ++VNS+ P +++ G D A LAK+
Sbjct: 145 HIAYAASKAALDNMTLSFAAKLAP-EVKVNSIAPALILFNEG----DDAAYRQKALAKSL 199
Query: 85 LGRFAANANI 94
L I
Sbjct: 200 LKIEPGEEEI 209
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 45.0 bits (106), Expect = 2e-06
Identities = 21/58 (36%), Positives = 33/58 (56%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+N+SS+ G+ G T YS +KA + T ++A E+ + VN+V P + T M
Sbjct: 133 GRIINISSVNGQKGQFGQTNYSTAKAGIHGFTMSLAQEVATKGVTVNTVSPGYIGTDM 190
>gnl|CDD|187666 cd09806, type1_17beta-HSD-like_SDR_c, human estrogenic
17beta-hydroxysteroid dehydrogenase type 1 (type 1
17beta-HSD)-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. This classical SDR subgroup
includes human type 1 17beta-HSD, human retinol
dehydrogenase 8, zebrafish photoreceptor associated
retinol dehydrogenase type 2, and a chicken
ovary-specific 17beta-hydroxysteroid dehydrogenase. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 44.4 bits (105), Expect = 3e-06
Identities = 19/70 (27%), Positives = 36/70 (51%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+ SS+ G L + +Y ASK AL+ + ++A++L P+N+ ++ ++ V T
Sbjct: 130 SGRILVTSSVGGLQGLPFNDVYCASKFALEGLCESLAVQLLPFNVHLSLIECGPVHTAFM 189
Query: 67 RTGWSDPAKA 76
P +
Sbjct: 190 EKVLGSPEEV 199
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 44.6 bits (106), Expect = 3e-06
Identities = 33/102 (32%), Positives = 44/102 (43%), Gaps = 21/102 (20%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM-- 65
G +VNVSSI +T + Y ASKAALD+ + A E I ++ +V T M
Sbjct: 502 GHVVNVSSIGVQTNAPRFSAYVASKAALDAFSDVAASETLSDGITFTTIHMPLVRTPMIA 561
Query: 66 -------GRTGWSDPAKAGPMLAK----------TPLGRFAA 90
T S P +A M+ + TPLG FA
Sbjct: 562 PTKRYNNVPT-IS-PEEAADMVVRAIVEKPKRIDTPLGTFAE 601
>gnl|CDD|132250 TIGR03206, benzo_BadH, 2-hydroxycyclohexanecarboxyl-CoA
dehydrogenase. Members of this protein family are the
enzyme 2-hydroxycyclohexanecarboxyl-CoA dehydrogenase.
The enzymatic properties were confirmed experimentally
in Rhodopseudomonas palustris; the enzyme is
homotetrameric, and not sensitive to oxygen. This enzyme
is part of proposed pathway for degradation of
benzoyl-CoA to 3-hydroxypimeloyl-CoA that differs from
the analogous in Thauera aromatica. It also may occur in
degradation of the non-aromatic compound
cyclohexane-1-carboxylate.
Length = 250
Score = 43.8 bits (103), Expect = 4e-06
Identities = 21/58 (36%), Positives = 32/58 (55%), Gaps = 1/58 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
M++ G IVN++S A + G +Y+A K L + ++TMA E + I VN V P
Sbjct: 126 MVERG-AGRIVNIASDAARVGSSGEAVYAACKGGLVAFSKTMAREHARHGITVNVVCP 182
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 43.7 bits (103), Expect = 4e-06
Identities = 26/81 (32%), Positives = 43/81 (53%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S+ Y+ASK+A+ +TR +A EL YNI VN++ P + T
Sbjct: 136 GKIINIASMLSFQGGIRVPSYTASKSAVMGLTRALATELSQYNINVNAIAPGYMATDNTA 195
Query: 68 TGWSDPAKAGPMLAKTPLGRF 88
+D A+ +L + P R+
Sbjct: 196 ALRADTARNEAILERIPASRW 216
>gnl|CDD|236056 PRK07576, PRK07576, short chain dehydrogenase; Provisional.
Length = 264
Score = 43.8 bits (104), Expect = 5e-06
Identities = 21/54 (38%), Positives = 31/54 (57%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
+ SI+ +S+ + A+KA +D +TRT+ALE GP IRVNS+ P
Sbjct: 134 RPGASIIQISAPQAFVPMPMQAHVCAAKAGVDMLTRTLALEWGPEGIRVNSIVP 187
>gnl|CDD|180949 PRK07370, PRK07370, enoyl-(acyl carrier protein) reductase;
Validated.
Length = 258
Score = 43.5 bits (103), Expect = 5e-06
Identities = 21/49 (42%), Positives = 33/49 (67%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
GSIV ++ + G A+ + + +KAAL++ R +A ELGP NIRVN++
Sbjct: 141 GSIVTLTYLGGVRAIPNYNVMGVAKAALEASVRYLAAELGPKNIRVNAI 189
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 43.6 bits (103), Expect = 5e-06
Identities = 26/73 (35%), Positives = 39/73 (53%), Gaps = 8/73 (10%)
Query: 8 GSIVNVSSIAG-KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+ + S+ G + + G Y+ASK+AL + R +A + GP I +N VQP + T
Sbjct: 125 GRIIIIGSVNGDRMPVAGMAAYAASKSALQGMARGLARDFGPRGITINVVQPGPIDTDA- 183
Query: 67 RTGWSDPAKAGPM 79
+PA GPM
Sbjct: 184 -----NPAN-GPM 190
>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 = 43.6 bits (103), Expect = 6e-06
Identities = 19/70 (27%), Positives = 35/70 (50%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S+ G A + Y A+K + +T+ +ALE + N++ P V+T +
Sbjct: 133 GRIINIASVHGLVASANKSAYVAAKHGVVGLTKVVALETAGTGVTCNAICPGWVLTPLVE 192
Query: 68 TGWSDPAKAG 77
S A+
Sbjct: 193 KQISALAQKN 202
>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 = 43.2 bits (102), Expect = 7e-06
Identities = 24/98 (24%), Positives = 46/98 (46%), Gaps = 6/98 (6%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTI---YSASKAALDSITRTMALELGPYNIRVNSVQ 57
+ G I+N++S+ + +G Y+ASK A+ +T+ +A E I VN++
Sbjct: 126 FLKQGRGGKIINIASM---LSFQGGIRVPSYTASKHAVAGLTKLLANEWAAKGINVNAIA 182
Query: 58 PTVVMTQMGRTGWSDPAKAGPMLAKTPLGRFAANANIK 95
P + T + +D + +L + P GR+ +I
Sbjct: 183 PGYMATNNTQALRADEDRNAAILERIPAGRWGTPDDIG 220
>gnl|CDD|236389 PRK09134, PRK09134, short chain dehydrogenase; Provisional.
Length = 258
Score = 43.0 bits (102), Expect = 8e-06
Identities = 32/93 (34%), Positives = 44/93 (47%), Gaps = 15/93 (16%)
Query: 28 YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAGPMLAKTPLGR 87
Y+ SKAAL + TRT+A L P IRVN++ P + GR D A+ A TPLGR
Sbjct: 159 YTLSKAALWTATRTLAQALAP-RIRVNAIGPGPTL-PSGRQSPEDFARQ---HAATPLGR 213
Query: 88 FAANANIKFFFKEMGRTG---WSDPAKAGPMLA 117
+ +E+ P+ G M+A
Sbjct: 214 GST-------PEEIAAAVRYLLDAPSVTGQMIA 239
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 43.1 bits (101), Expect = 9e-06
Identities = 34/128 (26%), Positives = 54/128 (42%), Gaps = 17/128 (13%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
+ +G ++N+SS + G Y SK AL+++T +A LG I VN++ P T
Sbjct: 137 RAEGRVINISSAEVRLGFTGSIAYGLSKGALNTMTLPLAKHLGERGITVNTIMPGYTKTD 196
Query: 65 MGRTGWSDPAKAGPMLAKTPLGRFAANANIKFFFKEMGRTGW-SDPAKAGPMLAKTPLGR 123
+ DP + FA N+++ GR G D A A LA +
Sbjct: 197 INAKLLDDPE----------IRNFATNSSV------FGRIGQVEDIADAVAFLASSDSRW 240
Query: 124 FAGECLKV 131
G+ + V
Sbjct: 241 VTGQIIDV 248
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 42.9 bits (101), Expect = 9e-06
Identities = 17/58 (29%), Positives = 30/58 (51%), Gaps = 1/58 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+N++S+ Y SK A+ +TR++A++ P IR +V P + T +
Sbjct: 124 GVIINIASVQSFAVTRNAAAYVTSKHAVLGLTRSIAVDYAP-TIRCVAVCPGSIRTPL 180
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 42.8 bits (101), Expect = 1e-05
Identities = 22/82 (26%), Positives = 44/82 (53%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+N++S+ A G Y+A+K A+ ++T+ MA + + ++ N++ P T +
Sbjct: 138 AGKIINIASVQSALARPGIAPYTATKGAVGNLTKGMATDWAKHGLQCNAIAPGYFDTPLN 197
Query: 67 RTGWSDPAKAGPMLAKTPLGRF 88
+DP + + +TP GR+
Sbjct: 198 AALVADPEFSAWLEKRTPAGRW 219
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 42.6 bits (101), Expect = 1e-05
Identities = 18/59 (30%), Positives = 32/59 (54%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+N+SS+ G +Y+ASK A++ + ++ E+ + IRV+ V+P T
Sbjct: 124 SGRIINISSVLGFLPAPYMALYAASKHAVEGYSESLDHEVRQFGIRVSLVEPAYTKTNF 182
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 42.2 bits (99), Expect = 2e-05
Identities = 24/54 (44%), Positives = 30/54 (55%)
Query: 10 IVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
+V V SIA + AL Y ASKAA+ RT+ L+L P I V +V P V T
Sbjct: 123 VVIVGSIASELALPRAEAYGASKAAVAYFARTLQLDLRPKGIEVVTVFPGFVAT 176
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 41.8 bits (98), Expect = 2e-05
Identities = 24/81 (29%), Positives = 43/81 (53%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G I+N++S+ Y+ASK+ + +TR MA E +NI VN++ P + T +
Sbjct: 138 GKIINIASMLSFQGGIRVPSYTASKSGVMGVTRLMANEWAKHNINVNAIAPGYMATNNTQ 197
Query: 68 TGWSDPAKAGPMLAKTPLGRF 88
+D ++ +L + P GR+
Sbjct: 198 QLRADEQRSAEILDRIPAGRW 218
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 41.9 bits (99), Expect = 2e-05
Identities = 22/68 (32%), Positives = 35/68 (51%), Gaps = 5/68 (7%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G I+N+SS+ GK Y A+K AL+ + + LE+ P+ I V ++P +
Sbjct: 125 SGRIINISSMGGKIYTPLGAWYHATKFALEGFSDALRLEVAPFGIDVVVIEPGGI----- 179
Query: 67 RTGWSDPA 74
+T W D A
Sbjct: 180 KTEWGDIA 187
>gnl|CDD|187619 cd05361, haloalcohol_DH_SDR_c-like, haloalcohol dehalogenase,
classical (c) SDRs. Dehalogenases cleave carbon-halogen
bonds. Haloalcohol dehalogenase show low sequence
similarity to short-chain dehydrogenases/reductases
(SDRs). Like the SDRs, haloalcohol dehalogenases have a
conserved catalytic triad (Ser-Tyr-Lys/Arg), and form a
Rossmann fold. However, the normal classical SDR
NAD(P)-binding motif (TGXXGXG) and NAD-binding function
is replaced with a halide binding site, allowing the
enzyme to catalyze a dehalogenation reaction. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 242
Score = 41.8 bits (98), Expect = 3e-05
Identities = 23/83 (27%), Positives = 41/83 (49%), Gaps = 3/83 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVM--TQM 65
GSI+ ++S K L +++Y ++AA ++ ++A EL NI V ++ P T
Sbjct: 125 GSIIFITSAVPKKPLAYNSLYGPARAAAVALAESLAKELSRDNILVYAIGPNFFNSPTYF 184
Query: 66 GRTGW-SDPAKAGPMLAKTPLGR 87
+ W ++P + PLGR
Sbjct: 185 PTSDWENNPELRERVKRDVPLGR 207
>gnl|CDD|236173 PRK08177, PRK08177, short chain dehydrogenase; Provisional.
Length = 225
Score = 41.6 bits (98), Expect = 3e-05
Identities = 26/63 (41%), Positives = 34/63 (53%), Gaps = 3/63 (4%)
Query: 7 QGSIVNVSSIAGKTALE---GHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
QG + +SS G L +Y ASKAAL+S+TR+ ELG + V S+ P V T
Sbjct: 123 QGVLAFMSSQLGSVELPDGGEMPLYKASKAALNSMTRSFVAELGEPTLTVLSMHPGWVKT 182
Query: 64 QMG 66
MG
Sbjct: 183 DMG 185
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 41.4 bits (97), Expect = 3e-05
Identities = 31/89 (34%), Positives = 46/89 (51%), Gaps = 20/89 (22%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G+IVN++S + + Y+ASK L ++T +A+ LGP IRVN+V P
Sbjct: 137 GAIVNLASTRARQSEPDTEAYAASKGGLLALTHALAISLGP-EIRVNAVSP--------- 186
Query: 68 TGW---SDPA--KAGPML----AKTPLGR 87
GW DP+ +A P+ A+ P GR
Sbjct: 187 -GWIDARDPSQRRAEPLSEADHAQHPAGR 214
>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 = 41.4 bits (97), Expect = 3e-05
Identities = 24/72 (33%), Positives = 37/72 (51%), Gaps = 3/72 (4%)
Query: 6 IQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVV---M 62
+ ++VN+SS+ +G +Y A KAA D + + +ALE N+RV + P V+ M
Sbjct: 142 LNRTVVNISSLCAIQPFKGWALYCAGKAARDMLFQVLALEEKNPNVRVLNYAPGVLDTDM 201
Query: 63 TQMGRTGWSDPA 74
Q R DP
Sbjct: 202 QQQVREESVDPD 213
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 41.5 bits (98), Expect = 3e-05
Identities = 19/58 (32%), Positives = 25/58 (43%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
+VNV S G G+ Y ASK AL + + EL +RV + P T M
Sbjct: 132 AMVVNVGSTFGSIGYPGYASYCASKFALRGFSEALRRELADTGVRVLYLAPRATRTAM 189
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 41.2 bits (97), Expect = 3e-05
Identities = 21/64 (32%), Positives = 34/64 (53%), Gaps = 1/64 (1%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
MI K G I+N+ S+ + E + Y+A+K L +T+ +A E G NI+ N + P
Sbjct: 133 MIK-KGHGKIINICSMMSELGRETVSAYAAAKGGLKMLTKNIASEYGEANIQCNGIGPGY 191
Query: 61 VMTQ 64
+ T
Sbjct: 192 IATP 195
>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 = 41.2 bits (97), Expect = 4e-05
Identities = 29/94 (30%), Positives = 43/94 (45%), Gaps = 9/94 (9%)
Query: 5 KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
+GS++ S AG G +Y+ASK A+ + + +A EL P+ IRVN V P ++T
Sbjct: 131 ATEGSVIFTVSNAGFYPGGGGPLYTASKHAVVGLVKQLAYELAPH-IRVNGVAPGGMVTD 189
Query: 65 --------MGRTGWSDPAKAGPMLAKTPLGRFAA 90
G T S P + + PLG
Sbjct: 190 LRGPASLGQGETSISTPPLDDMLKSILPLGFAPE 223
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 41.0 bits (96), Expect = 4e-05
Identities = 24/91 (26%), Positives = 36/91 (39%), Gaps = 10/91 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT---- 63
G ++ + S+ A + Y +K L + R +A E +N+R + V P V T
Sbjct: 137 GVVIYMGSVHSHEASPLKSAYVTAKHGLLGLARVLAKEGAKHNVRSHVVCPGFVRTPLVD 196
Query: 64 -----QMGRTGWS-DPAKAGPMLAKTPLGRF 88
Q G S + ML KT G F
Sbjct: 197 KQIPEQAKELGISEEEVVKKVMLGKTVDGVF 227
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 40.9 bits (96), Expect = 5e-05
Identities = 21/56 (37%), Positives = 30/56 (53%)
Query: 3 DHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
+ G IVN SS AG G Y A+KA + ++T + A LG Y +R N++ P
Sbjct: 143 GGPVYGRIVNTSSEAGLVGPVGQANYGAAKAGITALTLSAARALGRYGVRANAICP 198
>gnl|CDD|180343 PRK05993, PRK05993, short chain dehydrogenase; Provisional.
Length = 277
Score = 40.8 bits (96), Expect = 5e-05
Identities = 20/58 (34%), Positives = 34/58 (58%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
QG IV SSI G ++ Y+ASK A++ ++ T+ +EL I V+ ++P + T+
Sbjct: 127 QGRIVQCSSILGLVPMKYRGAYNASKFAIEGLSLTLRMELQGSGIHVSLIEPGPIETR 184
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 40.9 bits (96), Expect = 5e-05
Identities = 20/49 (40%), Positives = 32/49 (65%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
GSI+++SS +E + + SKAA++++ + A ELG NIRVN+V
Sbjct: 145 GSIISLSSTGNLVYIENYAGHGTSKAAVETMVKYAATELGEKNIRVNAV 193
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 40.7 bits (96), Expect = 5e-05
Identities = 31/91 (34%), Positives = 41/91 (45%), Gaps = 10/91 (10%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ--- 64
GS++ S + G +Y+ASK A+ + R +A EL P IRVN V P +T
Sbjct: 136 GSMIFTLSNSSFYPGGGGPLYTASKHAVVGLVRQLAYELAPK-IRVNGVAPGGTVTDLRG 194
Query: 65 -----MGRTGWSD-PAKAGPMLAKTPLGRFA 89
G T SD P A + A TPL
Sbjct: 195 PASLGQGETSISDSPGLADMIAAITPLQFAP 225
>gnl|CDD|235608 PRK05786, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 238
Score = 40.9 bits (96), Expect = 5e-05
Identities = 25/72 (34%), Positives = 33/72 (45%), Gaps = 4/72 (5%)
Query: 9 SIVNVSSIAG-KTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT--QM 65
SIV VSS++G A Y+ +KA L +A EL IRVN + PT + +
Sbjct: 130 SIVLVSSMSGIYKASPDQLSYAVAKAGLAKAVEILASELLGRGIRVNGIAPTTISGDFEP 189
Query: 66 GRTGWSDPAKAG 77
R W K G
Sbjct: 190 ERN-WKKLRKLG 200
>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 = 40.9 bits (96), Expect = 5e-05
Identities = 20/72 (27%), Positives = 36/72 (50%), Gaps = 3/72 (4%)
Query: 1 MIDH---KIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQ 57
++ H + + +I+NVSS + +Y A+KAA+ S T + +L ++ V +
Sbjct: 122 LLPHLLRQPEATIINVSSGLAFVPMASTPVYCATKAAIHSYTLALREQLKDTSVEVIELA 181
Query: 58 PTVVMTQMGRTG 69
P +V T G T
Sbjct: 182 PPLVDTTEGNTQ 193
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 40.5 bits (95), Expect = 6e-05
Identities = 25/86 (29%), Positives = 44/86 (51%), Gaps = 6/86 (6%)
Query: 7 QGSIVNVSSIAGKTALEGHTI---YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G I+N++S+ + +G Y+ASK + +T+ A EL YNI+VN++ P + T
Sbjct: 142 SGKIINIASM---LSFQGGKFVPAYTASKHGVAGLTKAFANELAAYNIQVNAIAPGYIKT 198
Query: 64 QMGRTGWSDPAKAGPMLAKTPLGRFA 89
+D + +L + P GR+
Sbjct: 199 ANTAPIRADKNRNDEILKRIPAGRWG 224
>gnl|CDD|236342 PRK08862, PRK08862, short chain dehydrogenase; Provisional.
Length = 227
Score = 40.5 bits (95), Expect = 6e-05
Identities = 22/73 (30%), Positives = 33/73 (45%), Gaps = 5/73 (6%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M +G IVNV S + T +S A + T + A EL P+NIRV V P++
Sbjct: 130 MRKRNKKGVIVNVIS---HDDHQDLTGVESSNALVSGFTHSWAKELTPFNIRVGGVVPSI 186
Query: 61 VMT--QMGRTGWS 71
++ W+
Sbjct: 187 FSANGELDAVHWA 199
>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 = 40.3 bits (94), Expect = 9e-05
Identities = 21/58 (36%), Positives = 33/58 (56%), Gaps = 3/58 (5%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
+I +K G I+N++S + Y+ASK L ++T +A+ LGP IRVN + P
Sbjct: 121 LIKNK--GRIINIASTRAFQSEPDSEAYAASKGGLVALTHALAMSLGPD-IRVNCISP 175
>gnl|CDD|187595 cd05334, DHPR_SDR_c_like, dihydropteridine reductase (DHPR),
classical (c) SDRs. Dihydropteridine reductase is an
NAD-binding protein related to the SDRs. It converts
dihydrobiopterin into tetrahydrobiopterin, a cofactor
necessary in catecholamines synthesis. Dihydropteridine
reductase has the YXXXK of these tyrosine-dependent
oxidoreductases, but lacks the typical upstream Asn and
Ser catalytic residues. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 221
Score = 40.0 bits (94), Expect = 1e-04
Identities = 18/67 (26%), Positives = 29/67 (43%), Gaps = 2/67 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELG--PYNIRVNSVQPTVVMTQM 65
G +V + A G Y A+KAA+ +T+++A E P N++ P + T
Sbjct: 119 GLLVLTGAKAALEPTPGMIGYGAAKAAVHQLTQSLAAENSGLPAGSTANAILPVTLDTPA 178
Query: 66 GRTGWSD 72
R D
Sbjct: 179 NRKAMPD 185
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 39.5 bits (93), Expect = 1e-04
Identities = 24/61 (39%), Positives = 32/61 (52%), Gaps = 1/61 (1%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G +V ++S AG A G Y+ASK AL ++ + E P N+RV SV P T M
Sbjct: 121 HGHVVFINSGAGLRANPGWGSYAASKFALRALADALREE-EPGNVRVTSVHPGRTDTDMQ 179
Query: 67 R 67
R
Sbjct: 180 R 180
>gnl|CDD|235914 PRK07041, PRK07041, short chain dehydrogenase; Provisional.
Length = 230
Score = 39.6 bits (93), Expect = 1e-04
Identities = 22/56 (39%), Positives = 31/56 (55%), Gaps = 2/56 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
GS+ VS A + A AAL+++ R +ALEL P +RVN+V P +V T
Sbjct: 117 GSLTFVSGFAAVRPSASGVLQGAINAALEALARGLALELAP--VRVNTVSPGLVDT 170
>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 = 39.4 bits (92), Expect = 2e-04
Identities = 21/73 (28%), Positives = 34/73 (46%), Gaps = 4/73 (5%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM-- 65
++N +S + +YSA+K A+ +T + +E + IRV V P V T +
Sbjct: 128 ARVINTASSSAIYGQPDLAVYSATKFAVRGLTEALDVEWARHGIRVADVWPWFVDTPILT 187
Query: 66 -GRTGWSDPAKAG 77
G TG + P K
Sbjct: 188 KGETG-AAPKKGL 199
>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 = 39.4 bits (92), Expect = 2e-04
Identities = 25/80 (31%), Positives = 41/80 (51%), Gaps = 3/80 (3%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+GS++ S AG G +Y+A+K A+ + + +A EL PY +RVN V P + + +
Sbjct: 134 RGSVIFTISNAGFYPNGGGPLYTAAKHAVVGLVKELAFELAPY-VRVNGVAPGGMSSDL- 191
Query: 67 RTGWSDPAKAGPMLAKTPLG 86
G A ++ PLG
Sbjct: 192 -RGPKSLGMADKSISTVPLG 210
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 39.1 bits (91), Expect = 2e-04
Identities = 25/79 (31%), Positives = 41/79 (51%)
Query: 9 SIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRT 68
SI+N SI Y+++KAA+ + T+ +A ++ IRVN+V P V T + +
Sbjct: 186 SIINTGSIQSYQPSPTLLDYASTKAAIVAFTKALAKQVAEKGIRVNAVAPGPVWTPLQPS 245
Query: 69 GWSDPAKAGPMLAKTPLGR 87
G P K ++TP+ R
Sbjct: 246 GGQPPEKIPDFGSETPMKR 264
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 39.1 bits (92), Expect = 2e-04
Identities = 23/80 (28%), Positives = 42/80 (52%), Gaps = 6/80 (7%)
Query: 8 GSIVNVSSIAGKTALEGH-TIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
G +V +SS++ L G Y+ASKA + S+ + EL I+V++++P + ++M
Sbjct: 133 GHLVLISSVSAVRGLPGVKAAYAASKAGVASLGEGLRAELAKTPIKVSTIEPGYIRSEM- 191
Query: 67 RTGWSDPAKAGPMLAKTPLG 86
+ AK+ P + T G
Sbjct: 192 ----NAKAKSTPFMVDTETG 207
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 38.8 bits (91), Expect = 2e-04
Identities = 21/77 (27%), Positives = 37/77 (48%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G ++ VSS+A A G Y ASKA +++ + LE+ + + V S + + T + R
Sbjct: 136 GYVLQVSSLAAFAAAPGMAAYCASKAGVEAFANALRLEVAHHGVTVGSAYLSWIDTDLVR 195
Query: 68 TGWSDPAKAGPMLAKTP 84
+D + A+ P
Sbjct: 196 DADADLPAFRELRARLP 212
>gnl|CDD|236057 PRK07578, PRK07578, short chain dehydrogenase; Provisional.
Length = 199
Score = 38.6 bits (91), Expect = 3e-04
Identities = 20/62 (32%), Positives = 28/62 (45%), Gaps = 1/62 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
GS S I + G + AL+ + ALEL P IR+N V PTV+ + +
Sbjct: 105 GSFTLTSGILSDEPIPGGASAATVNGALEGFVKAAALEL-PRGIRINVVSPTVLTESLEK 163
Query: 68 TG 69
G
Sbjct: 164 YG 165
>gnl|CDD|181162 PRK07904, PRK07904, short chain dehydrogenase; Provisional.
Length = 253
Score = 38.9 bits (91), Expect = 3e-04
Identities = 20/58 (34%), Positives = 32/58 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G I+ +SS+AG+ + +Y ++KA LD + L Y +RV V+P V T+M
Sbjct: 139 GQIIAMSSVAGERVRRSNFVYGSTKAGLDGFYLGLGEALREYGVRVLVVRPGQVRTRM 196
>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 = 38.6 bits (90), Expect = 3e-04
Identities = 22/59 (37%), Positives = 31/59 (52%), Gaps = 1/59 (1%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
+G IV +SS G L Y KAA+D + MA EL P+ + V S+ P V T++
Sbjct: 140 KGLIVIISSTGGLEYLFN-VAYGVGKAAIDRMAADMAHELKPHGVAVVSLWPGFVRTEL 197
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 38.4 bits (90), Expect = 3e-04
Identities = 20/56 (35%), Positives = 29/56 (51%)
Query: 10 IVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
++N SS + G +YSA+K A+ +T + LE + IRV V P V T M
Sbjct: 131 VINTSSASAIYGQPGLAVYSATKFAVRGLTEALDLEWRRHGIRVADVMPLFVDTAM 186
>gnl|CDD|181416 PRK08415, PRK08415, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 274
Score = 38.6 bits (90), Expect = 4e-04
Identities = 16/50 (32%), Positives = 30/50 (60%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
S++ +S + G + + + +KAAL+S R +A++LG IRVN++
Sbjct: 136 GASVLTLSYLGGVKYVPHYNVMGVAKAALESSVRYLAVDLGKKGIRVNAI 185
>gnl|CDD|187535 cd02266, SDR, Short-chain dehydrogenases/reductases (SDR). SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase (KR) domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 186
Score = 38.3 bits (89), Expect = 4e-04
Identities = 23/78 (29%), Positives = 33/78 (42%), Gaps = 14/78 (17%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G + +SS+AG G Y+ASKAALD + + A E + +V
Sbjct: 83 GRFILISSVAGLFGAPGLGGYAASKAALDGLAQQWASEGWGNGLPATAVAC--------- 133
Query: 68 TGWSDPAKAGPMLAKTPL 85
G AG +AK P+
Sbjct: 134 -GTW----AGSGMAKGPV 146
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 38.4 bits (90), Expect = 4e-04
Identities = 21/68 (30%), Positives = 32/68 (47%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
M++ G IVNV+S A Y+ SKAA+ ++ + EL I V ++ P
Sbjct: 438 MVERGTGGHIVNVASAAAYAPSRSLPAYATSKAAVLMLSECLRAELAAAGIGVTAICPGF 497
Query: 61 VMTQMGRT 68
V T + T
Sbjct: 498 VDTNIVAT 505
>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 = 38.3 bits (89), Expect = 4e-04
Identities = 19/58 (32%), Positives = 28/58 (48%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
GS+V SS G+ Y+ SK A + + + +A E N+RVN + P T M
Sbjct: 137 GSLVFTSSSVGRQGRANWGAYAVSKFATEGLXQVLADEYQQRNLRVNCINPGGTRTAM 194
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 38.2 bits (89), Expect = 4e-04
Identities = 21/54 (38%), Positives = 30/54 (55%), Gaps = 4/54 (7%)
Query: 28 YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPA-KAGPML 80
Y A+KA L+++ + +EL +R + V P +T M GWS PA GPML
Sbjct: 159 YGAAKAGLEAMVTNLQMELEGTGVRASIVHPGPTLTGM---GWSLPAEVIGPML 209
>gnl|CDD|236124 PRK07889, PRK07889, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 256
Score = 38.0 bits (89), Expect = 4e-04
Identities = 15/26 (57%), Positives = 19/26 (73%)
Query: 31 SKAALDSITRTMALELGPYNIRVNSV 56
+KAAL+S R +A +LGP IRVN V
Sbjct: 161 AKAALESTNRYLARDLGPRGIRVNLV 186
>gnl|CDD|169389 PRK08339, PRK08339, short chain dehydrogenase; Provisional.
Length = 263
Score = 37.9 bits (88), Expect = 6e-04
Identities = 17/56 (30%), Positives = 31/56 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
G I+ +S+A K + + + + ++ + RT+A ELGP I VN + P ++ T
Sbjct: 137 GRIIYSTSVAIKEPIPNIALSNVVRISMAGLVRTLAKELGPKGITVNGIMPGIIRT 192
>gnl|CDD|235694 PRK06079, PRK06079, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 252
Score = 37.4 bits (87), Expect = 8e-04
Identities = 19/56 (33%), Positives = 31/56 (55%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
SIV ++ + A+ + + +KAAL+S R +A +LG IRVN++ V T
Sbjct: 137 ASIVTLTYFGSERAIPNYNVMGIAKAALESSVRYLARDLGKKGIRVNAISAGAVKT 192
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 37.0 bits (86), Expect = 0.001
Identities = 24/81 (29%), Positives = 35/81 (43%), Gaps = 2/81 (2%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
G IV VSS G+ A G ++Y A+K ++ +A E+ P+ I V+P T G
Sbjct: 128 GRIVQVSSEGGQIAYPGFSLYHATKWGIEGFVEAVAQEVAPFGIEFTIVEPGPARTNFGA 187
Query: 68 TGWSDPAKAGPMLAKTPLGRF 88
D TP+G
Sbjct: 188 G--LDRGAPLDAYDDTPVGDL 206
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 36.6 bits (85), Expect = 0.001
Identities = 18/52 (34%), Positives = 31/52 (59%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
+G IV SS+ G + G Y+ASK AL++ + + +EL I+V+ ++P
Sbjct: 125 EGRIVMTSSVMGLISTPGRGAYAASKYALEAWSDALRMELRHSGIKVSLIEP 176
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 36.4 bits (85), Expect = 0.002
Identities = 25/81 (30%), Positives = 34/81 (41%), Gaps = 11/81 (13%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGR 67
S+V SS G+ Y+ SK A + + + +A E N+RVN + P T M R
Sbjct: 145 ASLVFTSSSVGRQGRANWGAYAVSKFATEGMMQVLADEYQGTNLRVNCINPGGTRTAM-R 203
Query: 68 TGWSDPAKA----GPMLAKTP 84
A A P KTP
Sbjct: 204 ------ASAFPGEDPQKLKTP 218
>gnl|CDD|168626 PRK06603, PRK06603, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 260
Score = 36.5 bits (84), Expect = 0.002
Identities = 16/56 (28%), Positives = 32/56 (57%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT 63
GSIV ++ + + + + +KAAL++ + +A ++G NIRVN++ + T
Sbjct: 140 GSIVTLTYYGAEKVIPNYNVMGVAKAALEASVKYLANDMGENNIRVNAISAGPIKT 195
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 35.9 bits (83), Expect = 0.002
Identities = 18/61 (29%), Positives = 34/61 (55%), Gaps = 5/61 (8%)
Query: 8 GSIVNVSS---IAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQ 64
G I+NV++ ++ + L +Y+ASKAAL +++R + E G + ++ +V T
Sbjct: 171 GHIINVATWGVLSEASPLFS--VYNASKAALSAVSRVIETEWGDRGVHSTTLYYPLVATP 228
Query: 65 M 65
M
Sbjct: 229 M 229
>gnl|CDD|180596 PRK06505, PRK06505, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 271
Score = 35.5 bits (82), Expect = 0.003
Identities = 17/59 (28%), Positives = 31/59 (52%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
GS++ ++ + + + +KAAL++ R +A + GP IRVN++ V T G
Sbjct: 139 GSMLTLTYGGSTRVMPNYNVMGVAKAALEASVRYLAADYGPQGIRVNAISAGPVRTLAG 197
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 35.4 bits (82), Expect = 0.004
Identities = 29/90 (32%), Positives = 38/90 (42%), Gaps = 8/90 (8%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMT---- 63
G IVNV AG+ + SA AAL + TR + + +RV V P V T
Sbjct: 133 GVIVNVIGAAGENPDADYICGSAGNAALMAFTRALGGKSLDDGVRVVGVNPGPVATDRML 192
Query: 64 ----QMGRTGWSDPAKAGPMLAKTPLGRFA 89
R D ++ +LA PLGR A
Sbjct: 193 TLLKGRARAELGDESRWQELLAGLPLGRPA 222
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 35.4 bits (81), Expect = 0.004
Identities = 24/79 (30%), Positives = 38/79 (48%)
Query: 9 SIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRT 68
SI+ SSI Y+A+KAA+ + +R +A ++ IRVN V P + T + +
Sbjct: 180 SIITTSSIQAYQPSPHLLDYAATKAAILNYSRGLAKQVAEKGIRVNIVAPGPIWTALQIS 239
Query: 69 GWSDPAKAGPMLAKTPLGR 87
G K +TP+ R
Sbjct: 240 GGQTQDKIPQFGQQTPMKR 258
>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 = 35.2 bits (81), Expect = 0.005
Identities = 35/119 (29%), Positives = 43/119 (36%), Gaps = 33/119 (27%)
Query: 7 QGSIVNVSSIAG----------KTALE-----------------GHTIYSASKAALDSIT 39
+ V VSSIAG AL G+ Y+ SK AL T
Sbjct: 103 GPAAVVVSSIAGAGWAQDKLELAKALAAGTEARAVALAEHAGQPGYLAYAGSKEALTVWT 162
Query: 40 RTMALE-LGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAGPMLAK---TPLGRFAANANI 94
R A L +RVN+V P V T + + DP G TP+GR A I
Sbjct: 163 RRRAATWLYGAGVRVNTVAPGPVETPILQAFLQDP--RGGESVDAFVTPMGRRAEPDEI 219
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 34.9 bits (81), Expect = 0.006
Identities = 17/58 (29%), Positives = 27/58 (46%), Gaps = 2/58 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALEL--GPYNIRVNSVQPTVVMT 63
G+I+ V S ++ + Y A+K A+ T ++ EL + V VQP V T
Sbjct: 137 GAIIQVGSALAYRSIPLQSAYCAAKHAIRGFTDSLRCELLHDGSPVSVTMVQPPAVNT 194
>gnl|CDD|178331 PLN02730, PLN02730, enoyl-[acyl-carrier-protein] reductase.
Length = 303
Score = 34.8 bits (80), Expect = 0.007
Identities = 20/51 (39%), Positives = 34/51 (66%), Gaps = 2/51 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELG-PYNIRVNSV 56
G+ ++++ IA + + G+ S++KAAL+S TR +A E G Y IRVN++
Sbjct: 172 GASISLTYIASERIIPGYGGGMSSAKAALESDTRVLAFEAGRKYKIRVNTI 222
>gnl|CDD|235776 PRK06300, PRK06300, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 299
Score = 34.4 bits (79), Expect = 0.008
Identities = 19/52 (36%), Positives = 34/52 (65%), Gaps = 2/52 (3%)
Query: 7 QGSIVNVSSIAGKTALEGHTI-YSASKAALDSITRTMALELG-PYNIRVNSV 56
GS ++++ +A A+ G+ S++KAAL+S T+ +A E G + IRVN++
Sbjct: 170 GGSTISLTYLASMRAVPGYGGGMSSAKAALESDTKVLAWEAGRRWGIRVNTI 221
>gnl|CDD|237099 PRK12428, PRK12428, 3-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 241
Score = 33.8 bits (78), Expect = 0.013
Identities = 29/88 (32%), Positives = 33/88 (37%), Gaps = 32/88 (36%)
Query: 8 GSIVNVSSIAG---KTALEGH------------------------TIYSASKAALDSITR 40
G+IVNV+S+AG LE H T Y SK AL I
Sbjct: 90 GAIVNVASLAGAEWPQRLELHKALAATASFDEGAAWLAAHPVALATGYQLSKEAL--ILW 147
Query: 41 TM---ALELGPYNIRVNSVQPTVVMTQM 65
TM G IRVN V P V T +
Sbjct: 148 TMRQAQPWFGARGIRVNCVAPGPVFTPI 175
>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 = 34.0 bits (78), Expect = 0.014
Identities = 25/73 (34%), Positives = 32/73 (43%), Gaps = 18/73 (24%)
Query: 10 IVNVSSIAGKTALEGHT---------------IYSASKAALDSITRTMALELGPYNIRVN 54
IVNVSS+A K G Y SK A TR +A L + VN
Sbjct: 132 IVNVSSLAHKA---GKINFDDLNSEKSYNTGFAYCQSKLANVLFTRELARRLQGTGVTVN 188
Query: 55 SVQPTVVMTQMGR 67
++ P VV T++GR
Sbjct: 189 ALHPGVVRTELGR 201
>gnl|CDD|181260 PRK08159, PRK08159, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 272
Score = 33.6 bits (77), Expect = 0.015
Identities = 16/49 (32%), Positives = 32/49 (65%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
GSI+ ++ + + + + +KAAL++ + +A++LGP NIRVN++
Sbjct: 142 GSILTLTYYGAEKVMPHYNVMGVAKAALEASVKYLAVDLGPKNIRVNAI 190
>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 = 33.5 bits (77), Expect = 0.019
Identities = 21/58 (36%), Positives = 30/58 (51%), Gaps = 2/58 (3%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGP--YNIRVNSVQPTVVMT 63
G+++NV S+ G + YSASK A+ T ++ EL I V VQPT + T
Sbjct: 129 GALINVGSLLGYRSAPLQAAYSASKHAVRGFTESLRAELAHDGAPISVTLVQPTAMNT 186
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 33.5 bits (77), Expect = 0.020
Identities = 17/40 (42%), Positives = 24/40 (60%)
Query: 3 DHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTM 42
D +G IVN +S+AG A IY+ SK A+ S+T T+
Sbjct: 136 DPAYEGHIVNTASMAGLLAPPAMGIYNVSKHAVVSLTETL 175
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 32.4 bits (74), Expect = 0.045
Identities = 16/54 (29%), Positives = 28/54 (51%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVV 61
G I+N+ S AG G +Y A+KA + + + +L +RV ++P +V
Sbjct: 127 GHIINIGSTAGSWPYAGGNVYGATKAFVRQFSLNLRTDLHGTAVRVTDIEPGLV 180
>gnl|CDD|235527 PRK05599, PRK05599, hypothetical protein; Provisional.
Length = 246
Score = 32.2 bits (73), Expect = 0.051
Identities = 19/67 (28%), Positives = 33/67 (49%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
+ +IV SSIAG A + +Y ++KA LD+ + +A L ++R+ +P
Sbjct: 123 LRAQTAPAAIVAFSSIAGWRARRANYVYGSTKAGLDAFCQGLADSLHGSHVRLIIARPGF 182
Query: 61 VMTQMGR 67
V+ M
Sbjct: 183 VIGSMTT 189
>gnl|CDD|180838 PRK07102, PRK07102, short chain dehydrogenase; Provisional.
Length = 243
Score = 31.8 bits (73), Expect = 0.055
Identities = 19/59 (32%), Positives = 31/59 (52%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
G+IV +SS+AG + +Y ++KAAL + + L + V +V+P V T M
Sbjct: 127 SGTIVGISSVAGDRGRASNYVYGSAKAALTAFLSGLRNRLFKSGVHVLTVKPGFVRTPM 185
>gnl|CDD|181187 PRK07984, PRK07984, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 262
Score = 31.4 bits (71), Expect = 0.084
Identities = 13/48 (27%), Positives = 30/48 (62%)
Query: 9 SIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
+++ +S + + A+ + + +KA+L++ R MA +GP +RVN++
Sbjct: 140 ALLTLSYLGAERAIPNYNVMGLAKASLEANVRYMANAMGPEGVRVNAI 187
>gnl|CDD|180766 PRK06940, PRK06940, short chain dehydrogenase; Provisional.
Length = 275
Score = 31.1 bits (71), Expect = 0.11
Identities = 18/62 (29%), Positives = 29/62 (46%), Gaps = 2/62 (3%)
Query: 28 YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAG--PMLAKTPL 85
Y +K A A++ G R+NS+ P ++ T + + + P G M AK+P
Sbjct: 169 YQIAKRANALRVMAEAVKWGERGARINSISPGIISTPLAQDELNGPRGDGYRNMFAKSPA 228
Query: 86 GR 87
GR
Sbjct: 229 GR 230
>gnl|CDD|180789 PRK06997, PRK06997, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 260
Score = 30.6 bits (69), Expect = 0.18
Identities = 13/50 (26%), Positives = 27/50 (54%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSV 56
S++ +S + + + + +KA+L++ R +A+ LGP IR N +
Sbjct: 138 DASLLTLSYLGAERVVPNYNTMGLAKASLEASVRYLAVSLGPKGIRANGI 187
>gnl|CDD|166421 PLN02780, PLN02780, ketoreductase/ oxidoreductase.
Length = 320
Score = 30.6 bits (69), Expect = 0.21
Identities = 20/67 (29%), Positives = 34/67 (50%), Gaps = 3/67 (4%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEG--HTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
M+ K +G+I+N+ S A + +Y+A+KA +D +R + +E I V P
Sbjct: 180 MLKRK-KGAIINIGSGAAIVIPSDPLYAVYAATKAYIDQFSRCLYVEYKKSGIDVQCQVP 238
Query: 59 TVVMTQM 65
V T+M
Sbjct: 239 LYVATKM 245
>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 = 29.8 bits (67), Expect = 0.31
Identities = 21/80 (26%), Positives = 33/80 (41%), Gaps = 8/80 (10%)
Query: 24 GHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAG----PM 79
YS SK L +T A+ ++ N+V P V T+MG G D + G
Sbjct: 154 DSPAYSDSK--LHVLTLAAAVARRWKDVSSNAVHPGWVPTKMGGAGAPDDLEQGHLTQVW 211
Query: 80 LAKTPLGRFAANANIKFFFK 99
LA++ A + +F+
Sbjct: 212 LAESDDP--QALTSGGYFYH 229
>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 = 29.7 bits (67), Expect = 0.31
Identities = 15/47 (31%), Positives = 26/47 (55%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRV 53
+G+I+ + A G ++ +K AL ++ ++MA ELGP I V
Sbjct: 128 RGTIIFTGATASLRGRAGFAAFAGAKFALRALAQSMARELGPKGIHV 174
>gnl|CDD|169553 PRK08690, PRK08690, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 261
Score = 29.9 bits (67), Expect = 0.35
Identities = 22/82 (26%), Positives = 38/82 (46%), Gaps = 2/82 (2%)
Query: 7 QGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
+IV +S + A+ + + +KA+L++ R A LG IR N + + T +
Sbjct: 139 NSAIVALSYLGAVRAIPNYNVMGMAKASLEAGIRFTAACLGKEGIRCNGISAGPIKT-LA 197
Query: 67 RTGWSDPAKAGPMLA-KTPLGR 87
+G +D K +A PL R
Sbjct: 198 ASGIADFGKLLGHVAAHNPLRR 219
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 29.5 bits (66), Expect = 0.38
Identities = 17/65 (26%), Positives = 30/65 (46%)
Query: 1 MIDHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTV 60
+++ G +V +S AG G Y +K + + T+A E+ I V+ + P V
Sbjct: 129 LLEQGTGGHVVFTASFAGLVPNAGLGAYGVAKYGVVGLAETLAREVTADGIGVSVLCPMV 188
Query: 61 VMTQM 65
V T +
Sbjct: 189 VETNL 193
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 28.9 bits (65), Expect = 0.72
Identities = 18/57 (31%), Positives = 26/57 (45%), Gaps = 1/57 (1%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPY-NIRVNSVQPTVVMT 63
G +N+ S+ G A YSASK L + + EL + +I V V P + T
Sbjct: 136 GIFINMISLGGFAAQPYAAAYSASKFGLRGFSEALRGELADHPDIHVCDVYPAFMDT 192
>gnl|CDD|211974 TIGR04251, SCM_rSAM_ScmF, SynChlorMet cassette radical SAM/SPASM
protein ScmF. A biosynthesis cassette found in
Syntrophobacter fumaroxidans MPOB, Chlorobium limicola
DSM 245, Methanocella paludicola SANAE, and delta
proteobacterium NaphS2 contains two PqqE-like radical
SAM/SPASM domain proteins, a PqqD homolog, and a
conserved hypothetical protein. These components suggest
modification of a ribosomally produced peptide
precursor, but the precursor has not been identified. Of
the two PqqE homologs of the cassette, this family is
the more distant in sequence.
Length = 353
Score = 28.7 bits (64), Expect = 0.82
Identities = 23/102 (22%), Positives = 38/102 (37%), Gaps = 15/102 (14%)
Query: 26 TIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDPAKAGPMLAKTPL 85
T+ + ++ I R +A LG +++ N VQPT ++M G + L +
Sbjct: 153 TVTRRNVGQMEQIVR-LAESLGAESVKFNHVQPTSRGSKMHENGETLSIGELVALGEWME 211
Query: 86 GRFAANANIKFFFKEMGRTGWSDPAKAGPMLAKTPLGRFAGE 127
+ ++ F G A PLGR GE
Sbjct: 212 RTLIPSTALRIDF--------------GHPPAFRPLGRMFGE 239
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 28.6 bits (64), Expect = 0.87
Identities = 12/35 (34%), Positives = 19/35 (54%)
Query: 24 GHTIYSASKAALDSITRTMALELGPYNIRVNSVQP 58
++ Y+ SKA ++ TR + E G I V +V P
Sbjct: 155 FYSAYAGSKAPVEHFTRAASKEFGARGISVTAVGP 189
>gnl|CDD|187562 cd05252, CDP_GD_SDR_e, CDP-D-glucose 4,6-dehydratase, extended (e)
SDRs. This subgroup contains CDP-D-glucose
4,6-dehydratase, an extended SDR, which catalyzes the
conversion of CDP-D-glucose to
CDP-4-keto-6-deoxy-D-glucose. This subgroup has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 336
Score = 28.1 bits (63), Expect = 1.5
Identities = 8/23 (34%), Positives = 11/23 (47%)
Query: 21 ALEGHTIYSASKAALDSITRTMA 43
L GH YS+SK + I +
Sbjct: 145 PLGGHDPYSSSKGCAELIISSYR 167
>gnl|CDD|100801 PRK01172, PRK01172, ski2-like helicase; Provisional.
Length = 674
Score = 27.9 bits (62), Expect = 1.9
Identities = 16/40 (40%), Positives = 22/40 (55%), Gaps = 4/40 (10%)
Query: 10 IVNVSSIAGKTALEGHTIYSASKAALDSI----TRTMALE 45
IV+V + AGKT + IY A L SI R++A+E
Sbjct: 41 IVSVPTAAGKTLIAYSAIYETFLAGLKSIYIVPLRSLAME 80
>gnl|CDD|187663 cd09762, HSDL2_SDR_c, human hydroxysteroid dehydrogenase-like
protein 2 (HSDL2), classical (c) SDRs. This subgroup
includes human HSDL2 and related protens. These are
members of the classical SDR family, with a canonical
Gly-rich NAD-binding motif and the typical YXXXK active
site motif. However, the rest of the catalytic tetrad is
not strongly conserved. HSDL2 may play a part in fatty
acid metabolism, as it is found in peroxisomes. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 27.4 bits (61), Expect = 1.9
Identities = 14/45 (31%), Positives = 21/45 (46%), Gaps = 1/45 (2%)
Query: 22 LEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP-TVVMTQM 65
+ HT Y+ +K + MA E P I VN++ P T + T
Sbjct: 155 FKNHTAYTMAKYGMSMCVLGMAEEFKPGGIAVNALWPRTAIATAA 199
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 27.2 bits (61), Expect = 2.4
Identities = 13/43 (30%), Positives = 20/43 (46%), Gaps = 1/43 (2%)
Query: 22 LEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQP-TVVMT 63
HT Y+ +K + T +A E I VN++ P T + T
Sbjct: 158 FAPHTAYTMAKYGMSLCTLGLAEEFRDDGIAVNALWPRTTIAT 200
>gnl|CDD|241134 cd12690, RRM3_PTBPH1_PTBPH2, RNA recognition motif 3 in plant
polypyrimidine tract-binding protein homolog 1 and 2
(PTBPH1 and PTBPH2). This subfamily corresponds to the
RRM3 of PTBPH1 and PTBPH2. Although their biological
roles remain unclear, PTBPH1 and PTBPH2 show
significant sequence similarity to polypyrimidine tract
binding protein (PTB) that is an important negative
regulator of alternative splicing in mammalian cells
and also functions at several other aspects of mRNA
metabolism, including mRNA localization, stabilization,
polyadenylation, and translation. Both, PTBPH1 and
PTBPH2, contain three RNA recognition motifs (RRM),
also known as RBD (RNA binding domain) or RNP
(ribonucleoprotein domain). .
Length = 97
Score = 26.4 bits (58), Expect = 3.1
Identities = 15/43 (34%), Positives = 22/43 (51%), Gaps = 6/43 (13%)
Query: 14 SSIAGKTALEGHTIYSASKAALD-SITRTMALELGPYNIRVNS 55
+++ K ALEGH IY L S +R L N++VN+
Sbjct: 53 TAVNAKEALEGHCIYDGGYCKLHLSYSRHTDL-----NVKVNN 90
>gnl|CDD|237016 PRK11903, PRK11903, aldehyde dehydrogenase; Provisional.
Length = 521
Score = 27.0 bits (60), Expect = 3.1
Identities = 13/41 (31%), Positives = 18/41 (43%), Gaps = 4/41 (9%)
Query: 26 TIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQMG 66
++YS A L ALEL + RV+ + P V G
Sbjct: 431 SVYSDDAAFL----AAAALELADSHGRVHVISPDVAALHTG 467
>gnl|CDD|218406 pfam05060, MGAT2, N-acetylglucosaminyltransferase II (MGAT2).
UDP-N-acetyl-D-glucosamine:alpha-6-D-mannoside
beta-1,2-N- acetylglucosaminyltransferase II (EC
2.4.1.143) (GnT II/MGAT2) is a Golgi resident enzyme
that catalyzes an essential step in the biosynthetic
pathway leading from high mannose to complex N-linked
oligosaccharides. Mutations in the MGAT2 gene lead to
congenital disorder of glycosylation (CDG IIa). CDG IIa
patients have an increased bleeding tendency, unrelated
to coagulation factors.
Length = 356
Score = 27.0 bits (60), Expect = 3.3
Identities = 11/41 (26%), Positives = 17/41 (41%)
Query: 33 AALDSITRTMALELGPYNIRVNSVQPTVVMTQMGRTGWSDP 73
L + R + +L P + V+ QP + G GW D
Sbjct: 310 QQLQELDRNIKQQLFPKTVTVSKRQPGYLAPFKGNGGWGDI 350
>gnl|CDD|217210 pfam02738, Ald_Xan_dh_C2, Molybdopterin-binding domain of aldehyde
dehydrogenase.
Length = 543
Score = 26.9 bits (60), Expect = 4.0
Identities = 15/61 (24%), Positives = 22/61 (36%), Gaps = 10/61 (16%)
Query: 3 DHKIQGSIVNVSSIAGKTALEGHTIYSASKAALDSITRTMALELGPYNIRVNSVQPTVVM 62
D KI V++ + G A + + R LGPY I ++ T V
Sbjct: 154 DGKITALDVDILADGGAYADLSDPV----------VERAGLHALGPYKIPNIRIEGTAVY 203
Query: 63 T 63
T
Sbjct: 204 T 204
>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 = 26.6 bits (59), Expect = 4.8
Identities = 8/38 (21%), Positives = 17/38 (44%)
Query: 28 YSASKAALDSITRTMALELGPYNIRVNSVQPTVVMTQM 65
YS+SK +D ++ + + + V P + T +
Sbjct: 202 YSSSKYLVDLLSLALNRKFNKLGVYSYVVHPGICTTNL 239
>gnl|CDD|233954 TIGR02622, CDP_4_6_dhtase, CDP-glucose 4,6-dehydratase. Members of
this protein family are CDP-glucose 4,6-dehydratase from
a variety of Gram-negative and Gram-positive bacteria.
Members typically are encoded next to a gene that
encodes a glucose-1-phosphate cytidylyltransferase,
which produces the substrate, CDP-D-glucose, used by
this enzyme to produce CDP-4-keto-6-deoxyglucose [Cell
envelope, Biosynthesis and degradation of surface
polysaccharides and lipopolysaccharides].
Length = 349
Score = 26.1 bits (58), Expect = 5.6
Identities = 8/14 (57%), Positives = 9/14 (64%)
Query: 21 ALEGHTIYSASKAA 34
L GH YS+SKA
Sbjct: 145 PLGGHDPYSSSKAC 158
>gnl|CDD|181609 PRK09009, PRK09009, C factor cell-cell signaling protein;
Provisional.
Length = 235
Score = 26.2 bits (58), Expect = 6.3
Identities = 9/18 (50%), Positives = 14/18 (77%)
Query: 28 YSASKAALDSITRTMALE 45
Y ASKAAL+ +T+++E
Sbjct: 148 YRASKAALNMFLKTLSIE 165
>gnl|CDD|219950 pfam08643, DUF1776, Fungal family of unknown function (DUF1776).
This is a fungal family of unknown function. One of the
proteins in this family has been localised to the
mitochondria.
Length = 298
Score = 25.8 bits (57), Expect = 7.8
Identities = 8/24 (33%), Positives = 13/24 (54%)
Query: 34 ALDSITRTMALELGPYNIRVNSVQ 57
AL + + EL P+NI V ++
Sbjct: 174 ALSTFFTILTRELRPHNIDVTQIR 197
>gnl|CDD|187557 cd05246, dTDP_GD_SDR_e, dTDP-D-glucose 4,6-dehydratase, extended
(e) SDRs. This subgroup contains dTDP-D-glucose
4,6-dehydratase and related proteins, members of the
extended-SDR family, with the characteristic Rossmann
fold core region, active site tetrad and NAD(P)-binding
motif. dTDP-D-glucose 4,6-dehydratase is closely related
to other sugar epimerases of the SDR family.
dTDP-D-dlucose 4,6,-dehydratase catalyzes the second of
four steps in the dTDP-L-rhamnose pathway (the
dehydration of dTDP-D-glucose to
dTDP-4-keto-6-deoxy-D-glucose) in the synthesis of
L-rhamnose, a cell wall component of some pathogenic
bacteria. In many gram negative bacteria, L-rhamnose is
an important constituent of lipopoylsaccharide
O-antigen. The larger N-terminal portion of
dTDP-D-Glucose 4,6-dehydratase forms a Rossmann fold
NAD-binding domain, while the C-terminus binds the sugar
substrate. 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 = 315
Score = 25.6 bits (57), Expect = 8.5
Identities = 11/33 (33%), Positives = 17/33 (51%)
Query: 8 GSIVNVSSIAGKTALEGHTIYSASKAALDSITR 40
G +++ + L + YSASKAA D + R
Sbjct: 130 GDLLDDGEFTETSPLAPTSPYSASKAAADLLVR 162
>gnl|CDD|187657 cd08954, KR_1_FAS_SDR_x, beta-ketoacyl reductase (KR) domain of
fatty acid synthase (FAS), subgroup 1, complex (x) SDRs.
NADP-dependent KR domain of the multidomain type I FAS,
a complex SDR family. This subfamily also includes
proteins identified as polyketide synthase (PKS), a
protein with related modular protein architecture and
similar function. It includes the KR domains of
mammalian and chicken FAS, and Dictyostelium discoideum
putative polyketide synthases (PKSs). These KR domains
contain two subdomains, each of which is related to SDR
Rossmann fold domains. However, while the C-terminal
subdomain has an active site similar to the other SDRs
and a NADP-binding capability, the N-terminal SDR-like
subdomain is truncated and lacks these functions,
serving a supportive structural role. In some instances,
such as porcine FAS, an enoyl reductase (a Rossman fold
NAD-binding domain of the medium-chain
dehydrogenase/reductase, MDR family) module is inserted
between the sub-domains. Fatty acid synthesis occurs via
the stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consists of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthesis
uses 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-ketoacyl reductase (KR), forming
beta-hydroxyacyl-ACP, which is in turn dehydrated by
dehydratase to a beta-enoyl intermediate, which is
reduced by NADP-dependent beta-enoyl reductase (ER);
this KR and ER are members of the SDR family. This KR
subfamily has an active site tetrad with a similar 3D
orientation compared to archetypical SDRs, but the
active site Lys and Asn residue positions are swapped.
The characteristic NADP-binding is typical of the
multidomain complex SDRs, with a GGXGXXG NADP 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
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 = 452
Score = 25.9 bits (57), Expect = 9.1
Identities = 8/27 (29%), Positives = 14/27 (51%)
Query: 14 SSIAGKTALEGHTIYSASKAALDSITR 40
SS++ G Y + + LDS++R
Sbjct: 357 SSVSSIRGSAGQCNYVCANSVLDSLSR 383
>gnl|CDD|235184 PRK03979, PRK03979, ADP-specific phosphofructokinase; Provisional.
Length = 463
Score = 25.7 bits (57), Expect = 9.3
Identities = 14/35 (40%), Positives = 20/35 (57%), Gaps = 3/35 (8%)
Query: 19 KTALEGHTIYSASKAALDSITRTMALELG---PYN 50
+ +LE TI +A+KA L I L++G PYN
Sbjct: 366 RKSLEFATILAATKAKLGDIKSIEDLKVGLEVPYN 400
>gnl|CDD|180561 PRK06427, PRK06427, bifunctional hydroxy-methylpyrimidine kinase/
hydroxy-phosphomethylpyrimidine kinase; Reviewed.
Length = 266
Score = 25.5 bits (57), Expect = 9.6
Identities = 15/43 (34%), Positives = 25/43 (58%), Gaps = 3/43 (6%)
Query: 14 SSIAGKTALEGHTIYSASKAALDSITRTM--ALELGPYNIRVN 54
++IA + A G ++ A + A D +TR + ALE+G + VN
Sbjct: 219 AAIAAELAK-GASLLDAVQTAKDYVTRAIRHALEIGQGHGPVN 260
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 0.132 0.391
Gapped
Lambda K H
0.267 0.0783 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,340,516
Number of extensions: 532874
Number of successful extensions: 733
Number of sequences better than 10.0: 1
Number of HSP's gapped: 672
Number of HSP's successfully gapped: 285
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)