RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy16223
(153 letters)
>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 = 86.1 bits (214), Expect = 2e-21
Identities = 38/142 (26%), Positives = 54/142 (38%), Gaps = 54/142 (38%)
Query: 6 TVPFAIQAEKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSSSAGHLSQITNLELKKRL 63
+ P QA +T+ TN+ G V L PLL++ R+VN+SS G L+
Sbjct: 96 STPTREQARETMKTNFFGTVDVTQALLPLLKKSPAGRIVNVSSGLGSLT----------- 144
Query: 64 MEDCVSERQLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCEL 123
SAY VSK +N LTRI K+
Sbjct: 145 -----------------------------------SAYGVSKAALNALTRILAKEL---- 165
Query: 124 GNQDKV-INAVHPGYVATNMSS 144
+ + +NA PG+V T+M
Sbjct: 166 -KETGIKVNACCPGWVKTDMGG 186
>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 = 51.5 bits (124), Expect = 1e-08
Identities = 29/132 (21%), Positives = 42/132 (31%), Gaps = 50/132 (37%)
Query: 14 EKTILTNYLGLVRTCVFLFPLLRRH--ARVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
++ + N G+ P +++ R+VN+SS AG
Sbjct: 99 DRVLDVNLTGVFLLTRAALPHMKKQGGGRIVNISSVAGL--------------------- 137
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPD-SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVI 130
+ P +AYA SK + LTR EL +
Sbjct: 138 ----------------------RPLPGQAAYAASKAALEGLTRSLAL----ELAPYGIRV 171
Query: 131 NAVHPGYVATNM 142
NAV PG V T M
Sbjct: 172 NAVAPGLVDTPM 183
>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 = 50.2 bits (120), Expect = 4e-08
Identities = 30/131 (22%), Positives = 43/131 (32%), Gaps = 47/131 (35%)
Query: 12 QAEKTILTNYLGLVRTCVFLFPLLRRHARVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
++ I N LG PL+++ R+VN+SS AG
Sbjct: 110 DWDRVIDVNLLGAFLLTRAALPLMKK-QRIVNISSVAGL--------------------- 147
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVIN 131
+AYA SK + LT+ EL + +N
Sbjct: 148 ---------------------GGPPGQAAYAASKAALIGLTKALAL----ELAPRGIRVN 182
Query: 132 AVHPGYVATNM 142
AV PGY+ T M
Sbjct: 183 AVAPGYIDTPM 193
>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 = 45.3 bits (108), Expect = 3e-06
Identities = 31/132 (23%), Positives = 45/132 (34%), Gaps = 36/132 (27%)
Query: 14 EKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
E NYLG L P+L+ +R+VN+SS A H + + S
Sbjct: 103 ELQFAVNYLGHFLLTNLLLPVLKASAPSRIVNVSSIA-HRAGPIDFNDLDLENNKEYSPY 161
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKV-I 130
+ AY SK+ L TR ++ V +
Sbjct: 162 K---------------------------AYGQSKLANILFTRELARRL-----EGTGVTV 189
Query: 131 NAVHPGYVATNM 142
NA+HPG V T +
Sbjct: 190 NALHPGVVRTEL 201
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 44.1 bits (105), Expect = 6e-06
Identities = 35/139 (25%), Positives = 44/139 (31%), Gaps = 52/139 (37%)
Query: 14 EKTILTNYLGLVRTCVFLFPLLRRHA--RVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
E+ I N G P L R R+V SS AG
Sbjct: 108 ERVIDVNLTGTFLLTQAALPALIRAGGGRIVLTSSVAG---------------------- 145
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPDSA-YAVSKIGVNLLTRIYQKKFDCELGNQDKVI 130
G+P A YA SK G+ TR EL ++ +
Sbjct: 146 --------------------PRVGYPGLAHYAASKAGLVGFTRALAL----ELAARNITV 181
Query: 131 NAVHPGYVATNMSSFMGNV 149
N+VHPG V T M GN+
Sbjct: 182 NSVHPGGVDTPM---AGNL 197
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 42.5 bits (100), Expect = 3e-05
Identities = 19/44 (43%), Positives = 23/44 (52%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
+AY+ SK V LTR CE + +NAV PGYV T M
Sbjct: 152 TAYSASKAAVISLTR----SLACEWAAKGIRVNAVLPGYVRTQM 191
Score = 35.6 bits (82), Expect = 0.006
Identities = 16/44 (36%), Positives = 21/44 (47%), Gaps = 4/44 (9%)
Query: 97 PDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
P +AY SK V +L+R CE +N V PGY+ T
Sbjct: 410 PRNAYCASKAAVTMLSR----SLACEWAPAGIRVNTVAPGYIET 449
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 40.9 bits (96), Expect = 7e-05
Identities = 18/52 (34%), Positives = 23/52 (44%), Gaps = 5/52 (9%)
Query: 92 VAKGWPD-SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
+A P YA SK V L + EL + +NAV PG VAT +
Sbjct: 143 IALPLPGYGPYAASKAAVEGLVHVLAN----ELRGRGITVNAVAPGPVATEL 190
>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 = 40.8 bits (96), Expect = 9e-05
Identities = 19/47 (40%), Positives = 23/47 (48%), Gaps = 4/47 (8%)
Query: 97 PDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
P AYA SK GV LT+ E +NA+ PGY AT M+
Sbjct: 150 PVPAYAASKGGVAGLTKALAT----EWARHGIQVNAIAPGYFATEMT 192
>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 = 39.6 bits (93), Expect = 2e-04
Identities = 27/134 (20%), Positives = 44/134 (32%), Gaps = 45/134 (33%)
Query: 14 EKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
+ N LG + PLL + A+++N+SS G + T+
Sbjct: 101 LEVFQVNVLGPLLLTQAFLPLLLKGARAKIINISSRVGSIGDNTSG-------------- 146
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVIN 131
+Y SK +N+LT K EL +
Sbjct: 147 -------------------------GWYSYRASKAALNMLT----KSLAVELKRDGITVV 177
Query: 132 AVHPGYVATNMSSF 145
++HPG+V T+M
Sbjct: 178 SLHPGWVRTDMGGP 191
>gnl|CDD|237099 PRK12428, PRK12428, 3-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 241
Score = 39.6 bits (93), Expect = 2e-04
Identities = 36/134 (26%), Positives = 48/134 (35%), Gaps = 18/134 (13%)
Query: 7 VPFAIQAEKTILTNYLGLVRTCVFLFPLLRRHARVVNLSSSAGHLSQITNLELKKRLMED 66
VP E N+LGL L P + +VN++S AG LEL K L
Sbjct: 58 VPGTAPVELVARVNFLGLRHLTEALLPRMAPGGAIVNVASLAG-AEWPQRLELHKALAA- 115
Query: 67 CVSERQLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQ 126
T E HP A + Y +SK + L T ++ G +
Sbjct: 116 -------TASFDEGAAWLAAHPVAL------ATGYQLSKEALILWT--MRQAQP-WFGAR 159
Query: 127 DKVINAVHPGYVAT 140
+N V PG V T
Sbjct: 160 GIRVNCVAPGPVFT 173
>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 = 39.2 bits (92), Expect = 2e-04
Identities = 20/44 (45%), Positives = 24/44 (54%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
AYA SK V TR+ K ELG + +NAV PG V T+M
Sbjct: 149 GAYAGSKAAVEAFTRVLAK----ELGGRGITVNAVAPGPVDTDM 188
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 38.9 bits (91), Expect = 4e-04
Identities = 18/42 (42%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATN 141
AY SK GV LT K F EL + +NA+ PGY+ T
Sbjct: 162 AYTASKHGVAGLT----KAFANELAAYNIQVNAIAPGYIKTA 199
>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 = 37.3 bits (87), Expect = 0.001
Identities = 15/31 (48%), Positives = 16/31 (51%), Gaps = 1/31 (3%)
Query: 20 NYLGLVRTCVFLFPLLRR-HARVVNLSSSAG 49
N G V PLLRR RVVN+SS G
Sbjct: 110 NLFGTVEVTKAFLPLLRRAKGRVVNVSSMGG 140
>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 = 37.0 bits (86), Expect = 0.002
Identities = 16/44 (36%), Positives = 22/44 (50%), Gaps = 2/44 (4%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
+AY SK V LT+ +C +N+VHPGY+ T M
Sbjct: 149 AAYNASKGAVRGLTKS--AALECATQGYGIRVNSVHPGYIYTPM 190
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 36.9 bits (86), Expect = 0.002
Identities = 16/43 (37%), Positives = 21/43 (48%), Gaps = 4/43 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
AY SK V +TR + ELG + +NA+ PG AT
Sbjct: 155 AYVASKGAVIGMTRSLAR----ELGGRGITVNAIAPGLTATEA 193
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 36.4 bits (85), Expect = 0.003
Identities = 18/54 (33%), Positives = 25/54 (46%), Gaps = 5/54 (9%)
Query: 90 AHVAKGWP-DSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
GWP S YA +K G+ LT+ + EL +N V PG + T+M
Sbjct: 144 VAGLPGWPGRSNYAAAKAGLVGLTKALAR----ELAEYGITVNMVAPGDIDTDM 193
>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 = 35.9 bits (83), Expect = 0.003
Identities = 14/44 (31%), Positives = 19/44 (43%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
AY SK + LTR EL + NA+ PG + T +
Sbjct: 148 GAYGASKAAIRNLTRT----LAAELRHAGIRCNALAPGLIDTPL 187
>gnl|CDD|236173 PRK08177, PRK08177, short chain dehydrogenase; Provisional.
Length = 225
Score = 36.2 bits (84), Expect = 0.003
Identities = 18/50 (36%), Positives = 25/50 (50%), Gaps = 8/50 (16%)
Query: 97 PDSA----YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
PD Y SK +N +TR F ELG + ++HPG+V T+M
Sbjct: 139 PDGGEMPLYKASKAALNSMTR----SFVAELGEPTLTVLSMHPGWVKTDM 184
>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 = 35.4 bits (82), Expect = 0.007
Identities = 27/135 (20%), Positives = 44/135 (32%), Gaps = 52/135 (38%)
Query: 14 EKTILTNYLGLVRTCVFLF-PLLRRHA-----RVVNLSSSAGHLSQITNLELKKRLMEDC 67
EKTI N G++ T +L + ++ +VN+ S AG
Sbjct: 104 EKTIDVNLTGVINT-TYLALHYMDKNKGGKGGVIVNIGSVAGL----------------- 145
Query: 68 VSERQLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQD 127
+P Y+ SK GV TR + + G +
Sbjct: 146 -------------------YPAPQFP------VYSASKHGVVGFTRSLADLLEYKTGVR- 179
Query: 128 KVINAVHPGYVATNM 142
+NA+ PG+ T +
Sbjct: 180 --VNAICPGFTNTPL 192
>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 = 35.3 bits (82), Expect = 0.007
Identities = 13/37 (35%), Positives = 19/37 (51%), Gaps = 2/37 (5%)
Query: 19 TNYLGLVRTCVFLFPLLRR--HARVVNLSSSAGHLSQ 53
N G +R PL+R+ R+VN+SS AG +
Sbjct: 104 VNVFGPLRVTRAFLPLMRKQGSGRIVNVSSVAGLVPT 140
>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 = 0.007
Identities = 36/138 (26%), Positives = 45/138 (32%), Gaps = 20/138 (14%)
Query: 7 VPFAIQAEKTILTNYLGLVRTCVFLFPLLRRHA--RVVNLSSSAGHLSQITNLELKKRLM 64
V A + NY GL L P LR+ V +SS AG LEL K
Sbjct: 70 VGGTTVAGLVLKVNYFGLRALMEALLPRLRKGHGPAAVVVSSIAGAGWAQDKLELAK--- 126
Query: 65 EDCVSERQLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELG 124
L EH AYA SK + + TR + G
Sbjct: 127 -------ALAAGTEARAVALAEH-AGQPG----YLAYAGSKEALTVWTRRRAATWLYGAG 174
Query: 125 NQDKVINAVHPGYVATNM 142
+ +N V PG V T +
Sbjct: 175 VR---VNTVAPGPVETPI 189
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 34.8 bits (81), Expect = 0.009
Identities = 21/50 (42%), Positives = 25/50 (50%), Gaps = 7/50 (14%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKV-INAVHPGYVATNMS-SFMG 147
Y SK V LT K ELG DK+ +NAV P V T + +FMG
Sbjct: 153 WYNASKGAVITLT----KALAAELGP-DKIRVNAVAPVVVETGLLEAFMG 197
>gnl|CDD|187654 cd08951, DR_C-13_KR_SDR_c_like, daunorubicin C-13 ketoreductase
(KR), classical (c)-like SDRs. Daunorubicin is a
clinically important therapeutic compound used in some
cancer treatments. Daunorubicin C-13 ketoreductase is
member of the classical SDR family with a canonical
glycine-rich NAD(P)-binding motif, but lacking a
complete match to the active site tetrad characteristic
of this group. The critical Tyr, plus the Lys and
upstream Asn are present, but the catalytic Ser is
replaced, generally by Gln. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 260
Score = 34.8 bits (80), Expect = 0.010
Identities = 19/51 (37%), Positives = 27/51 (52%), Gaps = 7/51 (13%)
Query: 94 KGWPDS-AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
+G DS AY+ SK+ V L +++ +D NAVHPG+V T M
Sbjct: 150 RGENDSPAYSDSKLHVLTLAAAVARRW------KDVSSNAVHPGWVPTKMG 194
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 34.4 bits (80), Expect = 0.011
Identities = 16/43 (37%), Positives = 24/43 (55%), Gaps = 4/43 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK GV T+ + EL ++ +NAV PG++ T+M
Sbjct: 154 NYAASKAGVIGFTKSLAR----ELASRGITVNAVAPGFIETDM 192
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 34.3 bits (79), Expect = 0.013
Identities = 19/57 (33%), Positives = 28/57 (49%), Gaps = 7/57 (12%)
Query: 90 AHVAKGWPD-SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSF 145
A V G PD AY SK ++ +TR+ ELG +N+V+P T M++
Sbjct: 140 ALV--GLPDHLAYCASKAALDAITRVLCV----ELGPHGIRVNSVNPTVTLTPMAAE 190
>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 = 34.3 bits (79), Expect = 0.013
Identities = 15/42 (35%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATN 141
+Y SK V LT++ E + +NA+ PGY+ATN
Sbjct: 152 SYTASKHAVAGLTKL----LANEWAAKGINVNAIAPGYMATN 189
>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 = 34.1 bits (79), Expect = 0.016
Identities = 14/43 (32%), Positives = 20/43 (46%), Gaps = 2/43 (4%)
Query: 12 QAEKTILTNYLGLVRTCVFLFPLL--RRHARVVNLSSSAGHLS 52
+ EKT N L T P + R H +V ++S AG +S
Sbjct: 99 EIEKTFEVNTLAHFWTTKAFLPDMLERNHGHIVTIASVAGLIS 141
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 33.7 bits (78), Expect = 0.019
Identities = 17/53 (32%), Positives = 22/53 (41%), Gaps = 4/53 (7%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMGNVNIF 152
Y+ SK VN T+ K EL +NAV PG + T M S +
Sbjct: 154 LYSASKGAVNAFTKALAK----ELAPSGIRVNAVAPGAIDTEMWSSFSEEDKE 202
>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 = 33.7 bits (77), Expect = 0.022
Identities = 18/50 (36%), Positives = 23/50 (46%), Gaps = 5/50 (10%)
Query: 94 KGWPDSA-YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
K P A YA +K G+ LT K EL +N++HP V T M
Sbjct: 158 KALPGLAHYAAAKHGLVGLT----KTLANELAEYGIRVNSIHPYSVDTPM 203
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 33.6 bits (77), Expect = 0.023
Identities = 18/43 (41%), Positives = 27/43 (62%), Gaps = 4/43 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
YA++K G+ +LTR + ELG +NAV PG+V T+M+
Sbjct: 152 YAITKAGIIILTR----RLAFELGKYGIRVNAVAPGWVETDMT 190
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 33.5 bits (77), Expect = 0.024
Identities = 18/54 (33%), Positives = 28/54 (51%), Gaps = 10/54 (18%)
Query: 94 KGWPDSAYAVSKIGVNLLTR---IYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
GW SAY SK G+++ T+ Q+ + E K++ A PG + TNM +
Sbjct: 149 FGW--SAYCSSKAGLDMFTQTVATEQE--EEEYPV--KIV-AFSPGVMDTNMQA 195
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 33.5 bits (77), Expect = 0.028
Identities = 17/42 (40%), Positives = 23/42 (54%), Gaps = 4/42 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
SAYA +K G+ +LT K E G + N + PGY+AT
Sbjct: 157 SAYAAAKGGLKMLT----KNIASEYGEANIQCNGIGPGYIAT 194
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 33.5 bits (77), Expect = 0.030
Identities = 36/131 (27%), Positives = 43/131 (32%), Gaps = 45/131 (34%)
Query: 19 TNYLGLVRTCVFLFPLLRR-HARVVNLSSSAGHLSQITNLELKKRLMEDCVSERQLTDMM 77
TN+LG L PLLR ARV + SS A I +D ER M
Sbjct: 122 TNHLGHFALTAHLLPLLRAGRARVTSQSSIAARRGAIN--------WDDLNWERSYAGM- 172
Query: 78 YEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDK------VIN 131
AY+ SKI V L F EL + + N
Sbjct: 173 ---------------------RAYSQSKIAVGL--------FALELDRRSRAAGWGITSN 203
Query: 132 AVHPGYVATNM 142
HPG TN+
Sbjct: 204 LAHPGVAPTNL 214
>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 = 33.1 bits (76), Expect = 0.033
Identities = 11/54 (20%), Positives = 26/54 (48%), Gaps = 5/54 (9%)
Query: 94 KGWPDS-AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFM 146
+G P + AY+ SK ++ L + + + ++PG++ T +++ M
Sbjct: 139 RGLPGAAAYSASKAALSSLAESLRYDVK----KRGIRVTVINPGFIDTPLTANM 188
>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 = 33.0 bits (76), Expect = 0.040
Identities = 17/42 (40%), Positives = 25/42 (59%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK GV T+ K EL +++ +NAV PG++ T+M
Sbjct: 148 YAASKAGVIGFTKSLAK----ELASRNITVNAVAPGFIDTDM 185
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 32.8 bits (75), Expect = 0.043
Identities = 16/43 (37%), Positives = 21/43 (48%), Gaps = 4/43 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK G+ LT+ EL + +NAV PG + T M
Sbjct: 159 NYAASKAGLIGLTK----TLANELAPRGITVNAVAPGAINTPM 197
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 32.8 bits (75), Expect = 0.045
Identities = 16/48 (33%), Positives = 21/48 (43%), Gaps = 6/48 (12%)
Query: 95 GWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
G AYA +K GV LT EL ++ +NAV P + T
Sbjct: 150 GM--GAYAAAKAGVARLTE----ALAAELLDRGITVNAVLPSIIDTPP 191
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 32.7 bits (75), Expect = 0.046
Identities = 13/32 (40%), Positives = 20/32 (62%), Gaps = 2/32 (6%)
Query: 20 NYLGLVRTCVFLFPLLRR--HARVVNLSSSAG 49
N +G+V+ C PL +R R+VN++S AG
Sbjct: 108 NLMGVVKGCKAFLPLFKRQKSGRIVNIASMAG 139
>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 = 32.7 bits (75), Expect = 0.052
Identities = 15/50 (30%), Positives = 24/50 (48%), Gaps = 4/50 (8%)
Query: 97 PDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFM 146
P +AY SK V L K E +N++ PGY+ T+++ F+
Sbjct: 156 PQAAYNASKAAVIHLA----KSLAVEWAKYFIRVNSISPGYIDTDLTDFV 201
>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 = 32.4 bits (74), Expect = 0.058
Identities = 27/124 (21%), Positives = 37/124 (29%), Gaps = 48/124 (38%)
Query: 19 TNYLGLVRTCVFLFPLLRRHAR--VVNLSSSAGHLSQITNLELKKRLMEDCVSERQLTDM 76
TN+ PLL+ +V +SS AG +
Sbjct: 114 TNFEAAYHLSRLAHPLLKASGNGNIVFISSVAGVI------------------------- 148
Query: 77 MYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPG 136
V G P Y +K +N LTR CE + +NAV P
Sbjct: 149 --------------AVPSGAP---YGATKGALNQLTR----SLACEWAKDNIRVNAVAPW 187
Query: 137 YVAT 140
+AT
Sbjct: 188 VIAT 191
>gnl|CDD|187636 cd08931, SDR_c9, classical (c) SDR, subgroup 9. This subgroup has
the canonical active site tetrad and NAD-binding motif
of the classical SDRs. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 227
Score = 32.4 bits (74), Expect = 0.064
Identities = 13/46 (28%), Positives = 22/46 (47%), Gaps = 3/46 (6%)
Query: 6 TVPFAIQAEKTILTNYLGLVRTCVFLFPLLRRH--ARVVNLSSSAG 49
VP A ++ + N G++ P L+ ARV+N +SS+
Sbjct: 94 DVPLA-AHDRMVDINVKGVLNGAYAALPYLKATPGARVINTASSSA 138
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 32.3 bits (74), Expect = 0.074
Identities = 17/45 (37%), Positives = 22/45 (48%), Gaps = 4/45 (8%)
Query: 98 DSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
SAY +K + LT K EL ++NAV PG +AT M
Sbjct: 150 ASAYTAAKHALGGLT----KAMALELVEHGILVNAVAPGAIATPM 190
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 32.2 bits (74), Expect = 0.076
Identities = 11/40 (27%), Positives = 19/40 (47%), Gaps = 2/40 (5%)
Query: 12 QAEKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSSSAG 49
++ I N G++ P L+ ARV+N SS++
Sbjct: 100 AHDRVIDINVKGVLNGAHAALPYLKATPGARVINTSSASA 139
>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 = 32.1 bits (73), Expect = 0.076
Identities = 34/135 (25%), Positives = 49/135 (36%), Gaps = 36/135 (26%)
Query: 20 NYLGLVRTCVFLFPLLRRHA--RVVNLSSSAGHLSQITNLELKKRLMEDCVSERQLTDMM 77
N+LG L LL++ A R+VN+SS A +I
Sbjct: 109 NHLGHFLLTNLLLDLLKKSAPSRIVNVSSLAHKAGKI----------------------- 145
Query: 78 YEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGY 137
F D+ E AY SK+ L TR ++ L +NA+HPG
Sbjct: 146 -NFDDLNSEKSYNTGF------AYCQSKLANVLFTRELARR----LQGTGVTVNALHPGV 194
Query: 138 VATNMSSFMGNVNIF 152
V T + G ++F
Sbjct: 195 VRTELGRHTGIHHLF 209
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 31.6 bits (72), Expect = 0.11
Identities = 16/46 (34%), Positives = 26/46 (56%), Gaps = 5/46 (10%)
Query: 96 WPDSA-YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
W S Y ++K+G+N LT ++ ELG + +NA+ PG + T
Sbjct: 149 WLYSNFYGLAKVGLNGLT----QQLARELGGMNIRVNAIAPGPIDT 190
>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 = 31.6 bits (72), Expect = 0.12
Identities = 14/48 (29%), Positives = 21/48 (43%), Gaps = 4/48 (8%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMG 147
Y +SK ++ TR EL + +N+V PG + T MG
Sbjct: 153 YYCISKAALDQFTRCTA----LELAPKGVRVNSVSPGVIVTGFHRRMG 196
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 31.7 bits (73), Expect = 0.13
Identities = 16/42 (38%), Positives = 20/42 (47%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK GV L + L + INAV PG++ T M
Sbjct: 356 YAASKAGVIGLVQALAPL----LAERGITINAVAPGFIETQM 393
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 31.2 bits (71), Expect = 0.14
Identities = 16/49 (32%), Positives = 22/49 (44%), Gaps = 4/49 (8%)
Query: 98 DSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFM 146
D+ Y +K G+ L R E G NA+ PGY AT ++ M
Sbjct: 157 DAVYPAAKQGLTGLMR----ALAAEFGPHGITSNAIAPGYFATETNAAM 201
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 31.2 bits (71), Expect = 0.14
Identities = 16/55 (29%), Positives = 20/55 (36%), Gaps = 7/55 (12%)
Query: 88 PRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
R G + YA SK V L + ELG +NA+ PG V
Sbjct: 150 GRLGYP-GR--TPYAASKWAVVGLVKSLAI----ELGPLGIRVNAILPGIVRGPR 197
>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 = 31.2 bits (71), Expect = 0.14
Identities = 14/43 (32%), Positives = 23/43 (53%), Gaps = 3/43 (6%)
Query: 10 AIQAEKTIL-TNYLGLVRTCVFLFPLLRRHAR--VVNLSSSAG 49
A++A K + N GL+R P+L+ + +VNL+S A
Sbjct: 95 ALEALKQEMDVNVFGLLRLAQAFAPVLKANGGGAIVNLNSVAS 137
>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 = 31.3 bits (71), Expect = 0.16
Identities = 19/57 (33%), Positives = 29/57 (50%), Gaps = 4/57 (7%)
Query: 92 VAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMGN 148
V G + +Y SK V+ LTR K EL + +NA+ PG + M++F+ N
Sbjct: 150 VVSGLENYSYGASKAAVHQLTRKLAK----ELAGEHITVNAIAPGRFPSKMTAFLLN 202
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 31.2 bits (71), Expect = 0.16
Identities = 17/43 (39%), Positives = 20/43 (46%), Gaps = 2/43 (4%)
Query: 14 EKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSSSAGHLSQI 54
E TN+LG L+P L ARVV LSS+ S I
Sbjct: 122 EAQFATNHLGHFALVNLLWPALAAGAGARVVALSSAGHRRSPI 164
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 30.9 bits (70), Expect = 0.18
Identities = 26/133 (19%), Positives = 38/133 (28%), Gaps = 48/133 (36%)
Query: 17 ILTNYLGLVRTCVFLFPLLRRH--ARVVNLSSSAGHLSQITNLELKKRLMEDCVSERQLT 74
I TN + LF + R++N+SS G Q
Sbjct: 108 INTNLNSVFNVTQPLFAAMCEQGYGRIINISSVNGLKGQFGQ------------------ 149
Query: 75 DMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVH 134
+ Y+ +K G+ T K E +N +
Sbjct: 150 ------------------------TNYSAAKAGMIGFT----KALASEGARYGITVNCIA 181
Query: 135 PGYVATNMSSFMG 147
PGY+AT M MG
Sbjct: 182 PGYIATPMVEQMG 194
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 30.8 bits (69), Expect = 0.21
Identities = 16/49 (32%), Positives = 30/49 (61%), Gaps = 5/49 (10%)
Query: 97 PD-SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
PD AY+++K +N +T K +LG + +NA+ PG++ T+M++
Sbjct: 153 PDFIAYSMTKGAINTMTFTLAK----QLGARGITVNAILPGFIKTDMNA 197
>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 = 30.6 bits (69), Expect = 0.25
Identities = 17/46 (36%), Positives = 23/46 (50%), Gaps = 4/46 (8%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
+ Y+ SK GV T K EL +NAV PG+V T M++
Sbjct: 152 APYSASKHGVVGFT----KALGLELARTGITVNAVCPGFVETPMAA 193
>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 = 30.4 bits (69), Expect = 0.29
Identities = 12/46 (26%), Positives = 22/46 (47%), Gaps = 4/46 (8%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
+ Y+ SK + L ++ E + ++AV PG+V T M+
Sbjct: 143 AGYSASKFALRALAHALRQ----EGWDHGVRVSAVCPGFVDTPMAQ 184
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 30.3 bits (68), Expect = 0.30
Identities = 16/42 (38%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATN 141
+Y SK V LTR EL + +NA+ PGY+AT+
Sbjct: 155 SYTASKSAVMGLTRALAT----ELSQYNINVNAIAPGYMATD 192
>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 = 30.1 bits (68), Expect = 0.36
Identities = 13/51 (25%), Positives = 19/51 (37%), Gaps = 8/51 (15%)
Query: 88 PRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDC--ELGNQDKVINAVHPG 136
P + D AYA K G++ LT EL +N++ P
Sbjct: 151 PPLSLRPARGDVAYAAGKAGMSRLTL------GLAAELRRHGIAVNSLWPS 195
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 30.1 bits (68), Expect = 0.39
Identities = 16/43 (37%), Positives = 21/43 (48%), Gaps = 4/43 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
YA SK V +LTR EL + +N + PGY T M+
Sbjct: 158 YAASKGAVKMLTR----GMCVELARHNIQVNGIAPGYFKTEMT 196
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 29.5 bits (67), Expect = 0.61
Identities = 12/37 (32%), Positives = 20/37 (54%), Gaps = 2/37 (5%)
Query: 12 QAEKTILTNYLGLVRTCVFLFPLLRR--HARVVNLSS 46
QA+ TN G++R + P +R R++N+SS
Sbjct: 96 QAQALFDTNVFGILRMTRAVLPHMRAQGSGRIINISS 132
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 29.4 bits (67), Expect = 0.65
Identities = 15/49 (30%), Positives = 26/49 (53%), Gaps = 4/49 (8%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMG 147
+ Y+ +K GV T K EL ++ +NAV PG++ T+M+ +
Sbjct: 152 TNYSAAKAGVIGFT----KALALELASRGITVNAVAPGFIDTDMTEGLP 196
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 29.5 bits (67), Expect = 0.66
Identities = 21/82 (25%), Positives = 34/82 (41%), Gaps = 20/82 (24%)
Query: 81 MDITKEHPRAHV--------AKGWPD--SAYAVSKIGVNLLT---RIYQKKFDCELGNQD 127
M+I +E H+ +G P +AYA SK GV L R EL
Sbjct: 124 MEIFREQGSGHLVLISSVSAVRGLPGVKAAYAASKAGVASLGEGLRA-------ELAKTP 176
Query: 128 KVINAVHPGYVATNMSSFMGNV 149
++ + PGY+ + M++ +
Sbjct: 177 IKVSTIEPGYIRSEMNAKAKST 198
>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 = 29.4 bits (67), Expect = 0.66
Identities = 17/42 (40%), Positives = 24/42 (57%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK GV T+ K EL ++ +NAV PG++ T+M
Sbjct: 149 YAASKAGVIGFTKSLAK----ELASRGITVNAVAPGFIDTDM 186
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 29.1 bits (65), Expect = 0.84
Identities = 16/42 (38%), Positives = 23/42 (54%), Gaps = 4/42 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATN 141
+Y SK GV +TR+ E + +NA+ PGY+ATN
Sbjct: 157 SYTASKSGVMGVTRLMAN----EWAKHNINVNAIAPGYMATN 194
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 29.0 bits (65), Expect = 0.98
Identities = 16/51 (31%), Positives = 25/51 (49%), Gaps = 4/51 (7%)
Query: 98 DSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMGN 148
++AYA++K + LT K E +NA+ PGYV T M+ +
Sbjct: 152 ETAYALTKAAIVGLT----KSLAVEYAQSGIRVNAICPGYVRTPMAESIAR 198
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 28.7 bits (65), Expect = 1.0
Identities = 19/50 (38%), Positives = 26/50 (52%), Gaps = 4/50 (8%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFMGN 148
+AYA SK G+ LT++ E G Q +NA+ PG T M MG+
Sbjct: 155 AAYAASKAGLIGLTQV----LAAEYGAQGIRVNALLPGGTDTPMGRAMGD 200
>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 = 28.6 bits (64), Expect = 1.1
Identities = 11/43 (25%), Positives = 25/43 (58%), Gaps = 4/43 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
Y +SK G+++ TR+ + L ++ ++ + PG + T+M+
Sbjct: 159 YCISKAGLSMATRLLAYR----LADEGIAVHEIRPGLIHTDMT 197
>gnl|CDD|224965 COG2054, COG2054, Uncharacterized archaeal kinase related to
aspartokinases, uridylate kinases [General function
prediction only].
Length = 212
Score = 28.6 bits (64), Expect = 1.1
Identities = 21/82 (25%), Positives = 32/82 (39%), Gaps = 12/82 (14%)
Query: 5 STVPFAIQAEKTILTNYLGLVRTCVFLFP-------LLRRHARVVNLSSSAGHLSQITNL 57
S V A K L N + + P L+R+ LS SA H IT +
Sbjct: 9 SGVAERAAAVKEALENLQR----SILIVPGGGIFADLVRKIDEEFGLSDSASHWMAITAM 64
Query: 58 ELKKRLMEDCVSERQLTDMMYE 79
+ + D ++ R +TD + E
Sbjct: 65 DQYGFYLAD-LASRFVTDTVTE 85
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 28.7 bits (65), Expect = 1.1
Identities = 15/49 (30%), Positives = 21/49 (42%), Gaps = 10/49 (20%)
Query: 99 SAYAVSKIGVNLLT---RIYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
Y+ SK LT R EL Q + VHPG + T+M++
Sbjct: 144 GTYSASKAAAWSLTQALRA-------ELAPQGTRVLGVHPGPIDTDMAA 185
>gnl|CDD|200431 TIGR04180, EDH_00030, NAD dependent epimerase/dehydratase,
LLPSF_EDH_00030 family. This clade within the NAD
dependent epimerase/dehydratase superfamily (pfam01370)
is characterized by inclusion of its members within a
cassette of seven distinctive enzymes. These include
four genes homologous to the elements of the neuraminic
(sialic) acid biosynthesis cluster (NeuABCD), an
aminotransferase and a nucleotidyltransferase in
addition to the epimerase/dehydratase. Together it is
very likely that these enzymes direct the biosynthesis
of a nine-carbon sugar analagous to CMP-neuraminic acid.
These seven genes form the core of the cassette,
although they are often accompanied by additional genes
that may further modify the product sugar. Although this
cassette is widely distributed in bacteria, the family
nomenclature arises from the instance in Leptospira
interrogans serovar Lai, str. 56601, where it appears as
the 30th gene in the 91-gene lipopolysaccharide
biosynthesis cluster.
Length = 297
Score = 28.4 bits (64), Expect = 1.6
Identities = 11/41 (26%), Positives = 20/41 (48%), Gaps = 6/41 (14%)
Query: 80 FMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFD 120
++ I ++HP S Y+ SKIG + L + + F+
Sbjct: 130 YVPIDEKHPLQ------GQSPYSASKIGADQLALSFYRSFN 164
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 27.8 bits (62), Expect = 1.9
Identities = 17/42 (40%), Positives = 21/42 (50%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK V+ LT K ELG +NAV PG + T +
Sbjct: 157 YAGSKGAVDTLTLGLAK----ELGPHGVRVNAVRPGLIETEI 194
>gnl|CDD|187570 cd05260, GDP_MD_SDR_e, GDP-mannose 4,6 dehydratase, extended (e)
SDRs. GDP-mannose 4,6 dehydratase, a homodimeric SDR,
catalyzes the NADP(H)-dependent conversion of
GDP-(D)-mannose to GDP-4-keto, 6-deoxy-(D)-mannose in
the fucose biosynthesis pathway. These proteins have the
canonical active site triad and NAD-binding pattern,
however the active site Asn is often missing and may be
substituted with Asp. A Glu residue has been identified
as an important active site base. 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 = 316
Score = 27.9 bits (63), Expect = 1.9
Identities = 10/24 (41%), Positives = 16/24 (66%)
Query: 97 PDSAYAVSKIGVNLLTRIYQKKFD 120
P S YAVSK+ + +TR Y++ +
Sbjct: 144 PRSPYAVSKLYADWITRNYREAYG 167
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 28.0 bits (63), Expect = 2.1
Identities = 16/35 (45%), Positives = 21/35 (60%), Gaps = 2/35 (5%)
Query: 14 EKTILTNYLGLVRTCVFLFPLL--RRHARVVNLSS 46
E+T+ NY G VR + L P + RR VVN+SS
Sbjct: 475 ERTMAVNYFGAVRLILGLLPHMRERRFGHVVNVSS 509
>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 = 27.9 bits (62), Expect = 2.2
Identities = 19/42 (45%), Positives = 23/42 (54%), Gaps = 4/42 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
+AY SK VN +TR FD LG + +NAV PG V T
Sbjct: 147 AAYGSSKAAVNHMTR--NLAFD--LGPKGIRVNAVAPGAVKT 184
>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 = 27.9 bits (63), Expect = 2.2
Identities = 29/135 (21%), Positives = 40/135 (29%), Gaps = 54/135 (40%)
Query: 14 EKTILTNYLGLVRTCVFLFPLL--RRHARVVNLSSSAGHLSQITNLELKKRLMEDCVSER 71
K + NY G V P L R +V +SS AG +
Sbjct: 106 RKIMEVNYFGPVALTKAALPHLIERSQGSIVVVSSIAGKIGV------------------ 147
Query: 72 QLTDMMYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFDC---ELGNQDK 128
P +AYA SK + Q FD EL +
Sbjct: 148 ----------------PFR--------TAYAASKHAL-------QGFFDSLRAELSEPNI 176
Query: 129 VINAVHPGYVATNMS 143
+ V PG + TN++
Sbjct: 177 SVTVVCPGLIDTNIA 191
>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 = 27.9 bits (62), Expect = 2.2
Identities = 18/44 (40%), Positives = 21/44 (47%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
S YA +K GV LTR E G INA+ PG + T M
Sbjct: 153 SGYAAAKHGVVGLTR----NSAVEYGQYGIRINAIAPGAILTPM 192
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 27.6 bits (62), Expect = 2.2
Identities = 15/44 (34%), Positives = 19/44 (43%), Gaps = 4/44 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMS 143
AY SK V TR E G +NA+ PG+ T M+
Sbjct: 165 AYNTSKGAVINFTR----ALAAEWGPHGIRVNAIAPGFFPTKMT 204
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 27.6 bits (62), Expect = 2.3
Identities = 12/47 (25%), Positives = 20/47 (42%), Gaps = 2/47 (4%)
Query: 12 QAEKTILTNYLGLVRTCVFLFPLL--RRHARVVNLSSSAGHLSQITN 56
++ I TN GL+ + P + R+ ++NL S AG
Sbjct: 104 DWDRMIDTNVKGLLNGTRAVLPGMVERKSGHIINLGSIAGRYPYPGG 150
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 27.7 bits (61), Expect = 2.4
Identities = 15/50 (30%), Positives = 25/50 (50%), Gaps = 4/50 (8%)
Query: 93 AKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
A G+ + Y+ +K G+ T K EL + +NA+ PG++ T M
Sbjct: 148 AGGFGQTNYSAAKAGMLGFT----KSLALELAKTNVTVNAICPGFIDTEM 193
>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 = 27.4 bits (61), Expect = 2.5
Identities = 17/43 (39%), Positives = 19/43 (44%), Gaps = 4/43 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
AY SK V LTR ELG +N V P VAT +
Sbjct: 152 AYTASKHAVLGLTR----SAATELGEHGIRVNCVSPYGVATPL 190
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 27.7 bits (61), Expect = 2.7
Identities = 12/42 (28%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
Y+ +K G++ T + E+ + +N V PGY+ T+M
Sbjct: 153 YSTAKAGIHGFTMSLAQ----EVATKGVTVNTVSPGYIGTDM 190
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 27.6 bits (62), Expect = 2.8
Identities = 16/46 (34%), Positives = 22/46 (47%), Gaps = 10/46 (21%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDC---ELGNQDKVINAVHPGYVATN 141
AYA SK V +L+ +C EL + A+ PG+V TN
Sbjct: 463 PAYATSKAAVLMLS-------ECLRAELAAAGIGVTAICPGFVDTN 501
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 27.3 bits (60), Expect = 3.0
Identities = 18/56 (32%), Positives = 29/56 (51%), Gaps = 5/56 (8%)
Query: 90 AHVAKGWPDS-AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSS 144
A V G+ S AY +SK +N +T K LG + +N + PGY T++++
Sbjct: 148 AEVRLGFTGSIAYGLSKGALNTMTLPLAK----HLGERGITVNTIMPGYTKTDINA 199
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 27.1 bits (60), Expect = 3.2
Identities = 14/42 (33%), Positives = 20/42 (47%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
YA SK ++ LT E+ Q +N V PG++ T M
Sbjct: 156 YAASKGAIDTLT----TGLSLEVAAQGIRVNCVRPGFIYTEM 193
>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 = 27.3 bits (61), Expect = 3.3
Identities = 16/46 (34%), Positives = 22/46 (47%), Gaps = 5/46 (10%)
Query: 96 WP-DSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
WP YA SK GV ++T K E + +NA+ PG + T
Sbjct: 148 WPGHVNYAASKGGVKMMT----KTLAQEYAPKGIRVNAIAPGAINT 189
>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 = 27.2 bits (61), Expect = 3.3
Identities = 13/39 (33%), Positives = 19/39 (48%), Gaps = 2/39 (5%)
Query: 14 EKTILTNYLGLVRTCVFLFPLL--RRHARVVNLSSSAGH 50
E I TN GL+ + P++ R ++NL S AG
Sbjct: 104 ETMIDTNVKGLLNVTRLILPIMIARNQGHIINLGSIAGR 142
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 27.4 bits (61), Expect = 3.4
Identities = 16/52 (30%), Positives = 22/52 (42%), Gaps = 6/52 (11%)
Query: 92 VAKGWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKV-INAVHPGYVATNM 142
+A G +AY SK + LTR D + +NAV PG + T
Sbjct: 144 LAGGRGRAAYVASKGAIASLTRAMALDH-----ATDGIRVNAVAPGTIDTPY 190
>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 = 27.4 bits (61), Expect = 3.4
Identities = 13/42 (30%), Positives = 21/42 (50%), Gaps = 4/42 (9%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
Y+ +K G+ T K E + +N + PGY+AT+M
Sbjct: 150 YSAAKAGMIGFT----KALAQEGATKGVTVNTISPGYIATDM 187
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 27.2 bits (61), Expect = 3.7
Identities = 20/52 (38%), Positives = 25/52 (48%), Gaps = 7/52 (13%)
Query: 90 AHVAKGWPD-SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
AH+ G P+ S YA SK + L K EL + +NAV PG V T
Sbjct: 140 AHI--GMPNSSVYAASKAALLSLA----KTLSGELLPRGIRVNAVSPGPVQT 185
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 26.9 bits (59), Expect = 3.8
Identities = 16/44 (36%), Positives = 20/44 (45%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
S Y SK V LT K EL +N+V PGY+ T +
Sbjct: 159 SHYCASKAAVIHLT----KAMAVELAPHKIRVNSVSPGYILTEL 198
>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 = 27.0 bits (60), Expect = 3.9
Identities = 13/44 (29%), Positives = 24/44 (54%), Gaps = 4/44 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
+ Y +K +++LT++ ELG +N+V+P V T+M
Sbjct: 147 TVYCSTKAALDMLTKV----MALELGPHKIRVNSVNPTVVMTDM 186
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 26.8 bits (60), Expect = 4.1
Identities = 15/46 (32%), Positives = 23/46 (50%), Gaps = 4/46 (8%)
Query: 101 YAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSFM 146
Y+ SK GV +T + K EL + A+ PG + T M++ M
Sbjct: 163 YSASKAGVAAMTVTWAK----ELARYGIRVAAIAPGVIETEMTAAM 204
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 27.0 bits (60), Expect = 4.2
Identities = 17/49 (34%), Positives = 22/49 (44%), Gaps = 14/49 (28%)
Query: 99 SAYAVSKIGVNLLTRI----YQKKFDCELGNQDKV-INAVHPGYVATNM 142
S YA SK V LT+ Y KK + +NAV P + T+M
Sbjct: 155 SIYAASKHAVIGLTKSAAIEYAKK---------GIRVNAVCPAVIDTDM 194
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 26.7 bits (59), Expect = 4.8
Identities = 13/43 (30%), Positives = 23/43 (53%), Gaps = 4/43 (9%)
Query: 100 AYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
AY V+K V+ L ++ ELG +N++ PG + T++
Sbjct: 158 AYGVTKSAVDHLMKLAAD----ELGPSWVRVNSIRPGLIRTDL 196
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 26.7 bits (59), Expect = 5.8
Identities = 16/35 (45%), Positives = 19/35 (54%), Gaps = 1/35 (2%)
Query: 19 TNYLGLVRTCVFLFPLLRR-HARVVNLSSSAGHLS 52
TN +V LFPLLRR VVN+ S +G L
Sbjct: 102 TNVFAVVGVTRALFPLLRRSRGLVVNIGSVSGVLV 136
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 26.5 bits (59), Expect = 5.9
Identities = 14/42 (33%), Positives = 18/42 (42%), Gaps = 4/42 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
S YA +K LTR ++ L +NAV P V T
Sbjct: 151 SGYAAAKGAQLALTR----EWAVALAKDGVRVNAVIPAEVMT 188
>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 = 26.4 bits (59), Expect = 6.4
Identities = 7/18 (38%), Positives = 11/18 (61%)
Query: 130 INAVHPGYVATNMSSFMG 147
INAV PG V ++ ++
Sbjct: 148 INAVSPGVVEESLEAYGD 165
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 26.5 bits (59), Expect = 6.7
Identities = 14/38 (36%), Positives = 19/38 (50%), Gaps = 4/38 (10%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPG 136
S YA +K +N TR + K ELG + + V PG
Sbjct: 156 SCYAATKAALNSFTRSWAK----ELGKHNIRVVGVAPG 189
>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 = 26.4 bits (59), Expect = 6.8
Identities = 12/47 (25%), Positives = 22/47 (46%), Gaps = 4/47 (8%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNMSSF 145
+ Y+ SK ++ +R + E +Q + ++ P VAT MS
Sbjct: 150 ATYSASKAFLDFFSRALYE----EYKSQGIDVQSLLPYLVATKMSKI 192
>gnl|CDD|180774 PRK06953, PRK06953, short chain dehydrogenase; Provisional.
Length = 222
Score = 26.2 bits (58), Expect = 6.9
Identities = 15/48 (31%), Positives = 20/48 (41%), Gaps = 9/48 (18%)
Query: 95 GWPDSAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVATNM 142
GW Y SK +N R L + A+HPG+V T+M
Sbjct: 143 GW---LYRASKAALNDALRAAS------LQARHATCIALHPGWVRTDM 181
>gnl|CDD|187567 cd05257, Arna_like_SDR_e, Arna decarboxylase_like, extended (e)
SDRs. Decarboxylase domain of ArnA. ArnA, is an enzyme
involved in the modification of outer membrane protein
lipid A of gram-negative bacteria. It is a bifunctional
enzyme that catalyzes the NAD-dependent decarboxylation
of UDP-glucuronic acid and
N-10-formyltetrahydrofolate-dependent formylation of
UDP-4-amino-4-deoxy-l-arabinose; its NAD-dependent
decaboxylating activity is in the C-terminal 360
residues. This subgroup belongs to the extended SDR
family, however the NAD binding motif is not a perfect
match and the upstream Asn of the canonical active site
tetrad is not conserved. 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 = 316
Score = 26.1 bits (58), Expect = 8.0
Identities = 13/44 (29%), Positives = 22/44 (50%), Gaps = 2/44 (4%)
Query: 77 MYEFMDITKEHPRAHVAKGWPDSAYAVSKIGVNLLTRIYQKKFD 120
+ + I ++HP ++ K P S Y+ SK G + L Y + F
Sbjct: 125 TAQDVPIDEDHPLLYINK--PRSPYSASKQGADRLAYSYGRSFG 166
>gnl|CDD|130460 TIGR01393, lepA, GTP-binding protein LepA. LepA (GUF1 in
Saccaromyces) is a GTP-binding membrane protein related
to EF-G and EF-Tu. Two types of phylogenetic tree,
rooted by other GTP-binding proteins, suggest that
eukaryotic homologs (including GUF1 of yeast)
originated within the bacterial LepA family. The
function is unknown [Unknown function, General].
Length = 595
Score = 26.5 bits (59), Expect = 8.0
Identities = 10/30 (33%), Positives = 19/30 (63%), Gaps = 2/30 (6%)
Query: 59 LKKRLMEDC--VSERQLTDMMYEFMDITKE 86
L RL+E +SER++ + + + MD+ +E
Sbjct: 19 LADRLLEYTGAISEREMREQVLDSMDLERE 48
>gnl|CDD|235462 PRK05433, PRK05433, GTP-binding protein LepA; Provisional.
Length = 600
Score = 26.2 bits (59), Expect = 8.2
Identities = 9/28 (32%), Positives = 17/28 (60%), Gaps = 2/28 (7%)
Query: 62 RLMEDC--VSERQLTDMMYEFMDITKEH 87
RL+E +SER++ + + MD+ +E
Sbjct: 26 RLIELTGTLSEREMKAQVLDSMDLERER 53
>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 = 26.2 bits (58), Expect = 8.3
Identities = 15/42 (35%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 99 SAYAVSKIGVNLLTRIYQKKFDCELGNQDKVINAVHPGYVAT 140
SAY +K G+ LT++ E+ +NA+ PGYV T
Sbjct: 148 SAYVAAKHGLIGLTKVLAL----EVAEHGITVNAICPGYVRT 185
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
0.323 0.135 0.396
Gapped
Lambda K H
0.267 0.0722 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,386,355
Number of extensions: 634780
Number of successful extensions: 675
Number of sequences better than 10.0: 1
Number of HSP's gapped: 643
Number of HSP's successfully gapped: 125
Length of query: 153
Length of database: 10,937,602
Length adjustment: 89
Effective length of query: 64
Effective length of database: 6,990,096
Effective search space: 447366144
Effective search space used: 447366144
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (22.0 bits)
S2: 55 (25.0 bits)