RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy16158
(136 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 = 112 bits (283), Expect = 4e-32
Identities = 45/93 (48%), Positives = 59/93 (63%), Gaps = 5/93 (5%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA---PFGQQAETTLATN 69
+VRFHQLDV ++ SI D ++ ++GGLDILVNNAGI ++G P +QA T+ TN
Sbjct: 51 SVRFHQLDVTDDASIEAAADFVEEKYGGLDILVNNAGIAFKGFDDSTPTREQARETMKTN 110
Query: 70 FFALVTVCHMLFPLLRP--HARVVNVASQFGML 100
FF V V L PLL+ R+VNV+S G L
Sbjct: 111 FFGTVDVTQALLPLLKKSPAGRIVNVSSGLGSL 143
>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 = 74.2 bits (183), Expect = 4e-17
Identities = 31/95 (32%), Positives = 45/95 (47%), Gaps = 8/95 (8%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPF----GQQAETT 65
NDN+ +LDV +E SI ++ + G +D+LVNNAG G P ++
Sbjct: 44 LNDNLEVLELDVTDEESIKAAVKEVIERFGRIDVLVNNAGYGLFG--PLEETSIEEVREL 101
Query: 66 LATNFFALVTVCHMLFPLLR--PHARVVNVASQFG 98
N F + V PL+R R+VNV+S G
Sbjct: 102 FEVNVFGPLRVTRAFLPLMRKQGSGRIVNVSSVAG 136
>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 = 73.8 bits (182), Expect = 7e-17
Identities = 26/87 (29%), Positives = 44/87 (50%), Gaps = 2/87 (2%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNF 70
N V QLD+ + S+ + ++ + LDIL+NNAGI+ E A N+
Sbjct: 51 NAKVEVIQLDLSSLASVRQFAEEFLARFPRLDILINNAGIMAPPRRLTKDGFELQFAVNY 110
Query: 71 FALVTVCHMLFPLLR--PHARVVNVAS 95
+ ++L P+L+ +R+VNV+S
Sbjct: 111 LGHFLLTNLLLPVLKASAPSRIVNVSS 137
>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 = 70.4 bits (173), Expect = 1e-15
Identities = 26/90 (28%), Positives = 40/90 (44%), Gaps = 4/90 (4%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG--QQAETTLATNF 70
N Q DV +E + L ++ + G LDILVNNAGI G + + L N
Sbjct: 47 NAVAVQADVSDEEDVEALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNL 106
Query: 71 FALVTVCHMLFPLL--RPHARVVNVASQFG 98
+ + P + + R+VN++S G
Sbjct: 107 TGVFLLTRAALPHMKKQGGGRIVNISSVAG 136
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 65.0 bits (159), Expect = 1e-13
Identities = 29/96 (30%), Positives = 44/96 (45%), Gaps = 8/96 (8%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETT----LA 67
V LDV + S D ++ G +D+LVNNAG++ G PF + + L
Sbjct: 50 GLVVGGPLDVTDPASFAAFLDAVEADLGPIDVLVNNAGVMPVG--PFLDEPDAVTRRILD 107
Query: 68 TNFFALVTVCHMLFPLLRPHAR--VVNVASQFGMLY 101
N + ++ + P + P R VVNVAS G +
Sbjct: 108 VNVYGVILGSKLAAPRMVPRGRGHVVNVASLAGKIP 143
>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 = 64.5 bits (157), Expect = 2e-13
Identities = 23/91 (25%), Positives = 37/91 (40%), Gaps = 5/91 (5%)
Query: 12 DNVRFHQLDVLN-ETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG---QQAETTLA 67
DV + E S+ L + + G +DILVNNAGI + + +
Sbjct: 57 GRAAAVAADVSDDEESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVID 116
Query: 68 TNFFALVTVCHMLFPLLRPHARVVNVASQFG 98
N + PL++ R+VN++S G
Sbjct: 117 VNLLGAFLLTRAALPLMKK-QRIVNISSVAG 146
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 63.5 bits (155), Expect = 6e-13
Identities = 28/99 (28%), Positives = 48/99 (48%), Gaps = 16/99 (16%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAP------FGQQAETT 65
N++ QLDV ++ SIH ++ G +D+LVNNAG G + +Q E
Sbjct: 54 QNIKVQQLDVTDQNSIHNFQLVLKE-IGRIDLLVNNAGYANGGFVEEIPVEEYRKQFE-- 110
Query: 66 LATNFFALVTVCHMLFPLLRPH--ARVVNVAS---QFGM 99
TN F ++V + P +R +++N++S + G
Sbjct: 111 --TNVFGAISVTQAVLPYMRKQKSGKIINISSISGRVGF 147
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 63.0 bits (154), Expect = 6e-13
Identities = 30/102 (29%), Positives = 42/102 (41%), Gaps = 10/102 (9%)
Query: 10 NNDNVRFHQLDVLNETSI-HKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQ----QAET 64
N LDV + + L D G LD+L NNAGI+ G PF +
Sbjct: 46 GAGNAWTGALDVTDRAAWDAALADFAAATGGRLDVLFNNAGILRGG--PFEDIPLEAHDR 103
Query: 65 TLATNFFALVTVCHMLFPLLR--PHARVVNVASQFGMLYKVP 104
+ N ++ H P L+ P ARV+N +S +Y P
Sbjct: 104 VIDINVKGVLNGAHAALPYLKATPGARVINTSSASA-IYGQP 144
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 62.5 bits (152), Expect = 1e-12
Identities = 36/90 (40%), Positives = 53/90 (58%), Gaps = 11/90 (12%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAG------IIYRGNAPFGQQAETTLATNFF 71
QLDV + ++ +L ++++ +HGGLD+L+NNAG ++ G +Q E TN F
Sbjct: 50 QLDVNDGAALARLAEELEAEHGGLDVLINNAGYGAMGPLLDGGVEAMRRQFE----TNVF 105
Query: 72 ALVTVCHMLFPLL-RPHARVVNVASQFGML 100
A+V V LFPLL R VVN+ S G+L
Sbjct: 106 AVVGVTRALFPLLRRSRGLVVNIGSVSGVL 135
>gnl|CDD|187628 cd05370, SDR_c2, classical (c) SDR, subgroup 2. Short-chain
dehydrogenases/reductases (SDRs, aka Tyrosine-dependent
oxidoreductases) are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 228
Score = 60.0 bits (146), Expect = 5e-12
Identities = 30/98 (30%), Positives = 48/98 (48%), Gaps = 6/98 (6%)
Query: 9 KNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY----RGNAPFGQQAET 64
K N+ LDV + S+ L + + +++ LDIL+NNAGI R A +A+T
Sbjct: 47 KELPNIHTIVLDVGDAESVEALAEALLSEYPNLDILINNAGIQRPIDLRDPASDLDKADT 106
Query: 65 TLATNFFALVTVCHMLFPLL--RPHARVVNVASQFGML 100
+ TN + + P L +P A +VNV+S +
Sbjct: 107 EIDTNLIGPIRLIKAFLPHLKKQPEATIVNVSSGLAFV 144
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 58.1 bits (141), Expect = 4e-11
Identities = 27/90 (30%), Positives = 43/90 (47%), Gaps = 14/90 (15%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTL-------ATNFFA 72
DV + + + L + + GG+D++VNNAG+ A G E +L A N
Sbjct: 57 DVRDYSQLTALAQACEEKWGGIDVIVNNAGV-----ASGGFFEELSLEDWDWQIAINLMG 111
Query: 73 LVTVCHMLFPLLRP--HARVVNVASQFGML 100
+V C PL + R+VN+AS G++
Sbjct: 112 VVKGCKAFLPLFKRQKSGRIVNIASMAGLM 141
>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 = 57.0 bits (138), Expect = 1e-10
Identities = 24/87 (27%), Positives = 38/87 (43%), Gaps = 4/87 (4%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA-PFG-QQAETTLATNF 70
DV +E +I + I+ G +DILVNNAGII R A F + + N
Sbjct: 55 EATAFTCDVSDEEAIKAAVEAIEEDFGKIDILVNNAGIIRRHPAEEFPEAEWRDVIDVNL 114
Query: 71 FALVTVCHMLFPLLRP--HARVVNVAS 95
+ V + + H +++N+ S
Sbjct: 115 NGVFFVSQAVARHMIKQGHGKIINICS 141
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 55.6 bits (135), Expect = 1e-10
Identities = 17/86 (19%), Positives = 30/86 (34%), Gaps = 8/86 (9%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA----ETTLATN 69
V DV + ++ L + G LD +V+NAG++ + P + E LA
Sbjct: 54 VTVAACDVADRDALAALLAALPAALGPLDGVVHNAGVL--DDGPLEELTPERFERVLAPK 111
Query: 70 FFALVTVCHMLFPLLRPHARVVNVAS 95
+ + V +S
Sbjct: 112 VTGAWNLHELTRD--LDLGAFVLFSS 135
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 54.9 bits (133), Expect = 6e-10
Identities = 24/91 (26%), Positives = 43/91 (47%), Gaps = 8/91 (8%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQ----AETTLATN 69
V D+ + ++ +L D+++ + G +D+LVNNAG G PF + E + N
Sbjct: 58 VEVIPADLSDPEALERLEDELKERGGPIDVLVNNAGFGTFG--PFLELSLDEEEEMIQLN 115
Query: 70 FFALVTVCHMLFPLL--RPHARVVNVASQFG 98
AL + + P + R ++N+ S G
Sbjct: 116 ILALTRLTKAVLPGMVERGAGHIINIGSAAG 146
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 54.5 bits (131), Expect = 1e-09
Identities = 32/115 (27%), Positives = 51/115 (44%), Gaps = 10/115 (8%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI-IYRGNAP--FGQQAETTLATNFFALVTV 76
D+ +E +L + + GGLDILVN AG + +Q + T TN +A+ +
Sbjct: 114 DLKDEAFCRQLVERAVKELGGLDILVNIAGKQTAVKDIADITTEQFDATFKTNVYAMFWL 173
Query: 77 CHMLFPLLRPHARVVNVASQFGMLYKVPSQELKQTLLNDSLTEDQLVGMMHDYVK 131
C P L P A ++N S + S + TLL+ + T+ +V K
Sbjct: 174 CKAAIPHLPPGASIINTGS-------IQSYQPSPTLLDYASTKAAIVAFTKALAK 221
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 54.0 bits (130), Expect = 1e-09
Identities = 30/100 (30%), Positives = 47/100 (47%), Gaps = 16/100 (16%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI-----IYRGNAPFGQQAETTL 66
D VR +LDV + + +I+ + G +DILVNNAGI R + Q+ +
Sbjct: 52 DQVRLKELDVTDTEECAEALAEIEEEEGPVDILVNNAGITRDSVFKRMSH---QEWNDVI 108
Query: 67 ATNFFALVTVCHMLFPLLRPH--ARVVNVAS------QFG 98
TN ++ V LF + R++N++S QFG
Sbjct: 109 NTNLNSVFNVTQPLFAAMCEQGYGRIINISSVNGLKGQFG 148
>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 = 53.8 bits (130), Expect = 2e-09
Identities = 36/114 (31%), Positives = 47/114 (41%), Gaps = 19/114 (16%)
Query: 5 KKVCKNNDNVRFHQLDVLNETSIHKLHDDI--QTQHGGLDILVNNAGIIYRGNAPFGQQA 62
++VC +D +R QLDV I + + GL LVNNAGI+ G +
Sbjct: 43 RRVC--SDRLRTLQLDVTKPEQIKRAAQWVKEHVGEKGLWGLVNNAGIL----GFGGDEE 96
Query: 63 ETTLAT-------NFFALVTVCHMLFPLLR-PHARVVNVASQFGMLYKVPSQEL 108
+ N F V V PLLR RVVNV+S M +VP
Sbjct: 97 LLPMDDYRKCMEVNLFGTVEVTKAFLPLLRRAKGRVVNVSS---MGGRVPFPAG 147
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 53.4 bits (129), Expect = 2e-09
Identities = 28/96 (29%), Positives = 50/96 (52%), Gaps = 14/96 (14%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA------ 67
V +LDV ++ S+ D++ + G +D+LVNNAG+ G A E+++A
Sbjct: 47 VELLELDVTDDASVQAAVDEVIARAGRIDVLVNNAGVGLAGAA-----EESSIAQAQALF 101
Query: 68 -TNFFALVTVCHMLFPLLRP--HARVVNVASQFGML 100
TN F ++ + + P +R R++N++S G L
Sbjct: 102 DTNVFGILRMTRAVLPHMRAQGSGRIINISSVLGFL 137
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 52.5 bits (127), Expect = 4e-09
Identities = 26/101 (25%), Positives = 40/101 (39%), Gaps = 14/101 (13%)
Query: 4 CKKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE 63
++ R DV +E ++ L + G LDILVNNAGI +A + +E
Sbjct: 46 AAELRAAGGEARVLVFDVSDEAAVRALIEAAVEAFGALDILVNNAGIT--RDALLPRMSE 103
Query: 64 ----TTLATN---FFALVTVCHMLFPLLRPH--ARVVNVAS 95
+ N F V P + R+VN++S
Sbjct: 104 EDWDRVIDVNLTGTFN---VVRAALPPMIKARYGRIVNISS 141
>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 = 52.2 bits (126), Expect = 4e-09
Identities = 25/104 (24%), Positives = 44/104 (42%), Gaps = 6/104 (5%)
Query: 3 NCKKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG--- 59
V K V +++ DV +++ I+ + G + IL+NNAG++ G
Sbjct: 39 TANNVRKAGGKVHYYKCDVSKREEVYEAAKKIKKEVGDVTILINNAGVVS-GKKLLELPD 97
Query: 60 QQAETTLATNFFALVTVCHMLFPLL--RPHARVVNVASQFGMLY 101
++ E T N A P + R H +V +AS G++
Sbjct: 98 EEIEKTFEVNTLAHFWTTKAFLPDMLERNHGHIVTIASVAGLIS 141
>gnl|CDD|187584 cd05323, ADH_SDR_c_like, insect type alcohol dehydrogenase
(ADH)-like, classical (c) SDRs. This subgroup contains
insect type ADH, and 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) type I; these proteins are
classical SDRs. ADH catalyzes the NAD+-dependent
oxidation of alcohols to aldehydes/ketones. This
subgroup is distinct from the zinc-dependent alcohol
dehydrogenases of the medium chain
dehydrogenase/reductase family, and evolved in fruit
flies to allow the digestion of fermenting fruit.
15-PGDH catalyzes the NAD-dependent interconversion of
(5Z,13E)-(15S)-11alpha,15-dihydroxy-9-oxoprost-13-enoate
and (5Z,13E)-11alpha-hydroxy-9,15-dioxoprost-13-enoate,
and has a typical SDR glycine-rich NAD-binding motif,
which is not fully present in ADH. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 52.3 bits (126), Expect = 5e-09
Identities = 24/103 (23%), Positives = 37/103 (35%), Gaps = 10/103 (9%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI----IYRGNAPFGQQAETTLAT 68
F Q DV + + + G +DIL+NNAGI Y E T+
Sbjct: 50 KATFVQCDVTSWEQLAAAFKKAIEKFGRVDILINNAGILDEKSYLFAGKLPPPWEKTIDV 109
Query: 69 NFFALVTVCHMLFPLLR-----PHARVVNVASQFGMLYKVPSQ 106
N ++ ++ + +VN+ S G LY P
Sbjct: 110 NLTGVINTTYLALHYMDKNKGGKGGVIVNIGSVAG-LYPAPQF 151
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 52.1 bits (125), Expect = 6e-09
Identities = 27/84 (32%), Positives = 39/84 (46%), Gaps = 4/84 (4%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE--TTLATNFFALVTVC 77
DV ++ + D ++ GL ILVNNAG R A + E TN F+ +
Sbjct: 68 DVSDDEDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAFELS 127
Query: 78 HMLFPLLRPHA--RVVNVASQFGM 99
PLL+ HA +VN+ S G+
Sbjct: 128 RYAHPLLKQHASSAIVNIGSVSGL 151
>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 = 51.7 bits (124), Expect = 8e-09
Identities = 30/99 (30%), Positives = 41/99 (41%), Gaps = 10/99 (10%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGG-LDILVNNAGIIYRGNAPFGQQ----AETTLA 67
NV LDV + + D GG LD L NNAG+ G PF + +
Sbjct: 48 NVVAGALDVTDRAAWAAALADFAAATGGRLDALFNNAGVGRGG--PFEDVPLAAHDRMVD 105
Query: 68 TNFFALVTVCHMLFPLLR--PHARVVNVASQFGMLYKVP 104
N ++ + P L+ P ARV+N AS +Y P
Sbjct: 106 INVKGVLNGAYAALPYLKATPGARVINTASSSA-IYGQP 143
>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 = 51.4 bits (124), Expect = 1e-08
Identities = 22/90 (24%), Positives = 41/90 (45%), Gaps = 6/90 (6%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG---QQAETTLA 67
N + DV + ++ L + ++ + G +DILVNNAGI R N + + +
Sbjct: 48 GGNAAALEADVSDREAVEALVEKVEAEFGPVDILVNNAGIT-RDNLLMRMSEEDWDAVIN 106
Query: 68 TNFFALVTVCHMLFPLL--RPHARVVNVAS 95
N + V + + R R++N++S
Sbjct: 107 VNLTGVFNVTQAVIRAMIKRRSGRIINISS 136
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 51.1 bits (123), Expect = 1e-08
Identities = 22/94 (23%), Positives = 39/94 (41%), Gaps = 8/94 (8%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA----ETTL 66
LDV + ++ + + + G +DILVNNAG + G P + + +
Sbjct: 52 AGAALALALDVTDRAAVEAAIEALPEEFGRIDILVNNAG-LALG-DPLDEADLDDWDRMI 109
Query: 67 ATNFFALVTVCHMLFPLL--RPHARVVNVASQFG 98
TN L+ + P + R ++N+ S G
Sbjct: 110 DTNVKGLLNGTRAVLPGMVERKSGHIINLGSIAG 143
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 50.7 bits (122), Expect = 2e-08
Identities = 23/86 (26%), Positives = 33/86 (38%), Gaps = 4/86 (4%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN-APFGQQA-ETTLATNFF 71
D+ + S+ + D GGLD LVNNAGI + + + N
Sbjct: 58 AHAIAADLADPASVQRFFDAAAAALGGLDGLVNNAGITNSKSATELDIDTWDAVMNVNVR 117
Query: 72 ALVTVCHMLFPLLR--PHARVVNVAS 95
+ P LR R+VN+AS
Sbjct: 118 GTFLMLRAALPHLRDSGRGRIVNLAS 143
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 50.6 bits (122), Expect = 2e-08
Identities = 23/103 (22%), Positives = 41/103 (39%), Gaps = 18/103 (17%)
Query: 5 KKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAP------F 58
+ V + Q DV ++ ++ + G +DILVNNAGI +
Sbjct: 49 EAVEALGRRAQAVQADVTDKAALEAAVAAAVERFGRIDILVNNAGIFEDKPLADMSDDEW 108
Query: 59 GQQAETTLATNFFALVTVCHMLFPLLRP-----HARVVNVASQ 96
+ + L + F H+L ++ P R+VN++S
Sbjct: 109 DEVIDVNL-SGVF------HLLRAVVPPMRKQRGGRIVNISSV 144
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 50.8 bits (122), Expect = 2e-08
Identities = 26/81 (32%), Positives = 34/81 (41%), Gaps = 13/81 (16%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA-------ETTLATNFFA 72
DV + + ++ D + GGLD+LVNNAGI P G E TLA N
Sbjct: 66 DVADPAQVERVFDTAVERFGGLDVLVNNAGIA----GPTGGIDEITPEQWEQTLAVNLNG 121
Query: 73 LVTVCHMLFPLLR--PHARVV 91
PLL+ H V+
Sbjct: 122 QFYFARAAVPLLKASGHGGVI 142
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 50.3 bits (121), Expect = 3e-08
Identities = 26/91 (28%), Positives = 40/91 (43%), Gaps = 15/91 (16%)
Query: 15 RFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETT-------LA 67
FH DV + + L D I +HG LD+LVNNA G +P+ AE + +
Sbjct: 50 EFHAADVRDPDQVAALVDAIVERHGRLDVLVNNA-----GGSPYALAAEASPRFHEKIVE 104
Query: 68 TNFFALVTVCHMLFPLLRPHAR---VVNVAS 95
N A + V +++ +VN+ S
Sbjct: 105 LNLLAPLLVAQAANAVMQQQPGGGSIVNIGS 135
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 50.3 bits (121), Expect = 3e-08
Identities = 31/95 (32%), Positives = 44/95 (46%), Gaps = 13/95 (13%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN--APFGQQAETT---- 65
R+ D+ +E + + + GG+++L+NNAG+ N A Q
Sbjct: 53 GRHRWVVADLTSEAGREAVLARAR-EMGGINVLINNAGV----NHFALLEDQDPEAIERL 107
Query: 66 LATNFFALVTVCHMLFPLLR--PHARVVNVASQFG 98
LA N A + + L PLLR P A VVNV S FG
Sbjct: 108 LALNLTAPMQLTRALLPLLRAQPSAMVVNVGSTFG 142
>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 = 49.9 bits (120), Expect = 4e-08
Identities = 28/105 (26%), Positives = 42/105 (40%), Gaps = 16/105 (15%)
Query: 5 KKVCKNNDNVRFH--QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA 62
K C H LD+ + ++ ++ GGLDIL+NNAGI R
Sbjct: 44 KSECLELGAPSPHVVPLDMSDLEDAEQVVEEALKLFGGLDILINNAGISMRSLF-----H 98
Query: 63 ETTLA-------TNFFALVTVCHMLFPLL--RPHARVVNVASQFG 98
+T++ N+F V + P L R +V V+S G
Sbjct: 99 DTSIDVDRKIMEVNYFGPVALTKAALPHLIERSQGSIVVVSSIAG 143
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 50.0 bits (120), Expect = 4e-08
Identities = 27/96 (28%), Positives = 42/96 (43%), Gaps = 20/96 (20%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG----------QQAETTLA 67
LDV +E SI D I + G +D+LVNNAG +G +A
Sbjct: 52 SLDVTDEASIKAAVDTIIAEEGRIDVLVNNAG--------YGSYGAIEDVPIDEARRQFE 103
Query: 68 TNFFALVTVCHMLFPLLRPHA--RVVNVASQFGMLY 101
N F + ++ P +R R++N++S G +Y
Sbjct: 104 VNLFGAARLTQLVLPHMRAQRSGRIINISSMGGKIY 139
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 49.5 bits (119), Expect = 4e-08
Identities = 23/84 (27%), Positives = 32/84 (38%), Gaps = 8/84 (9%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG----QQAETTLATNFFAL 73
Q+DV + ++ G LDILV NAGI PF +Q E + N
Sbjct: 61 QVDVRDRAALKAAVAAGVEDFGRLDILVANAGIF--PLTPFAEMDDEQWERVIDVNLTGT 118
Query: 74 VTVCHMLFPLLRPHA--RVVNVAS 95
+ P L R+V +S
Sbjct: 119 FLLTQAALPALIRAGGGRIVLTSS 142
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 49.5 bits (119), Expect = 5e-08
Identities = 26/90 (28%), Positives = 40/90 (44%), Gaps = 14/90 (15%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-------TNFF 71
LDV + +I + D + G +D+LVNNAG + G E+ LA N F
Sbjct: 57 LDVTDFDAIDAVVADAEATFGPIDVLVNNAGYGH-----EGAIEESPLAEMRRQFEVNVF 111
Query: 72 ALVTVCHMLFPLLRP--HARVVNVASQFGM 99
V + + P +R +VN+ S G+
Sbjct: 112 GAVAMTKAVLPGMRARRRGHIVNITSMGGL 141
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 49.3 bits (118), Expect = 6e-08
Identities = 23/96 (23%), Positives = 40/96 (41%), Gaps = 10/96 (10%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA-PFGQQA-ETTLA 67
N + DV + S+ + + G +DILVN+AG+ A ++ + T+
Sbjct: 59 LGGNAKGLVCDVSDSQSVEAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWDKTID 118
Query: 68 TNFFALVTVC-----HMLFPLLRPHARVVNVASQFG 98
N + HM + ++VN+ASQ G
Sbjct: 119 INLKGSFLMAQAVGRHM---IAAGGGKIVNLASQAG 151
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 49.3 bits (118), Expect = 6e-08
Identities = 16/41 (39%), Positives = 23/41 (56%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYR 53
+ DV +E + + I+ + G +DILVNNAGII R
Sbjct: 60 EAHGYVCDVTDEDGVQAMVSQIEKEVGVIDILVNNAGIIKR 100
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 49.6 bits (119), Expect = 6e-08
Identities = 25/94 (26%), Positives = 42/94 (44%), Gaps = 25/94 (26%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA-PF----GQQAETTLATNFF 71
+++DV + ++ + ++ +HG DI+VNNAGI G A F + + L N +
Sbjct: 369 YRVDVSDADAMEAFAEWVRAEHGVPDIVVNNAGI---GMAGGFLDTSAEDWDRVLDVNLW 425
Query: 72 ALVTVCHMLFPLLRPHAR----------VVNVAS 95
++ C R R +VNVAS
Sbjct: 426 GVIHGC-------RLFGRQMVERGTGGHIVNVAS 452
>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 = 49.0 bits (117), Expect = 7e-08
Identities = 27/93 (29%), Positives = 45/93 (48%), Gaps = 6/93 (6%)
Query: 18 QLDVLNETSIHKLHDDI-QTQHGGLDILVNNAG-IIYRGNAPF-GQQAETTLATNFFALV 74
DV + + +L D + G L+ILVNNAG I + + + ++TNF A
Sbjct: 61 VCDVSSRSERQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEAAY 120
Query: 75 TVCHMLFPLLRPHAR--VVNVASQFGMLYKVPS 105
+ + PLL+ +V ++S G++ VPS
Sbjct: 121 HLSRLAHPLLKASGNGNIVFISSVAGVI-AVPS 152
>gnl|CDD|187643 cd08939, KDSR-like_SDR_c, 3-ketodihydrosphingosine reductase (KDSR)
and related proteins, classical (c) SDR. These proteins
include members identified as KDSR, ribitol type
dehydrogenase, and others. The group shows strong
conservation of the active site tetrad and glycine rich
NAD-binding motif of the classical SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 239
Score = 48.8 bits (117), Expect = 8e-08
Identities = 22/94 (23%), Positives = 42/94 (44%), Gaps = 8/94 (8%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPF----GQQAETTLAT 68
V + D+ + + + + G D++VN AGI G F ++ E +
Sbjct: 55 KVSYISADLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPG--LFEDLTAEEFERGMDV 112
Query: 69 NFFALVTVCHMLFPLL--RPHARVVNVASQFGML 100
N+F + V H + PL+ + +V V+SQ ++
Sbjct: 113 NYFGSLNVAHAVLPLMKEQRPGHIVFVSSQAALV 146
>gnl|CDD|226476 COG3967, DltE, Short-chain dehydrogenase involved in D-alanine
esterification of lipoteichoic acid and wall teichoic
acid (D-alanine transfer protein) [Cell envelope
biogenesis, outer membrane].
Length = 245
Score = 48.2 bits (115), Expect = 2e-07
Identities = 26/89 (29%), Positives = 45/89 (50%), Gaps = 6/89 (6%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYR----GNAPFGQQAETTLATNFFAL 73
DV + S +L + ++ ++ L++L+NNAGI G AE +ATN A
Sbjct: 56 VCDVADRDSRRELVEWLKKEYPNLNVLINNAGIQRNEDLTGAEDLLDDAEQEIATNLLAP 115
Query: 74 VTVCHMLFPLL--RPHARVVNVASQFGML 100
+ + +L P L +P A ++NV+S +
Sbjct: 116 IRLTALLLPHLLRQPEATIINVSSGLAFV 144
>gnl|CDD|187586 cd05325, carb_red_sniffer_like_SDR_c, carbonyl reductase
sniffer-like, classical (c) SDRs. Sniffer is an
NADPH-dependent carbonyl reductase of the classical SDR
family. Studies in Drosophila melanogaster implicate
Sniffer in the prevention of neurodegeneration due to
aging and oxidative-stress. This subgroup also includes
Rhodococcus sp. AD45 IsoH, which is an NAD-dependent
1-hydroxy-2-glutathionyl-2-methyl-3-butene dehydrogenase
involved in isoprene metabolism, Aspergillus nidulans
StcE encoded by a gene which is part of a proposed
sterigmatocystin biosynthesis gene cluster, Bacillus
circulans SANK 72073 BtrF encoded by a gene found in the
butirosin biosynthesis gene cluster, and Aspergillus
parasiticus nor-1 involved in the biosynthesis of
aflatoxins. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 233
Score = 47.3 bits (113), Expect = 2e-07
Identities = 21/97 (21%), Positives = 42/97 (43%), Gaps = 9/97 (9%)
Query: 9 KNNDNVRFHQLDVLNE--TSIHKLHDDIQTQHGGLDILVNNAGII---YRGNAPFGQQAE 63
++ + +LDV +E S + + + LD+L+NNAGI+ + +
Sbjct: 44 ASHSRLHILELDVTDEIAESAEAVAERLGDAG--LDVLINNAGILHSYGPASEVDSEDLL 101
Query: 64 TTLATNFFALVTVCHMLFPLLRP--HARVVNVASQFG 98
N + + PLL A+++N++S+ G
Sbjct: 102 EVFQVNVLGPLLLTQAFLPLLLKGARAKIINISSRVG 138
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 47.4 bits (113), Expect = 3e-07
Identities = 26/87 (29%), Positives = 43/87 (49%), Gaps = 3/87 (3%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN-APFGQQA-ETTLATNFFALVT 75
Q DV + ++ +L D +T G +D+LVNNAG++ G A F + + T+ATN
Sbjct: 61 QADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATNLRGAFV 120
Query: 76 VCHMLFPLLRPHARVVNVA-SQFGMLY 101
V L R++N++ S +
Sbjct: 121 VLREAARHLGQGGRIINLSTSVIALPL 147
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 46.8 bits (112), Expect = 4e-07
Identities = 24/84 (28%), Positives = 37/84 (44%), Gaps = 11/84 (13%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET----TLATNFFAL 73
QLDV + S+ + + ILVNNAG I+R + + E + TN+F
Sbjct: 55 QLDVTDPASVAAAAE----AASDVTILVNNAG-IFRTGSLLLEGDEDALRAEMETNYFGP 109
Query: 74 VTVCHMLFPLL--RPHARVVNVAS 95
+ + P+L +VNV S
Sbjct: 110 LAMARAFAPVLAANGGGAIVNVLS 133
>gnl|CDD|187647 cd08943, R1PA_ADH_SDR_c, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase, classical (c) SDRs. This family has
bifunctional proteins with an N-terminal aldolase and a
C-terminal classical SDR domain. One member is
identified as a rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase. The SDR domain has a canonical SDR
glycine-rich NAD(P) binding motif and a match to the
characteristic active site triad. However, it lacks an
upstream active site Asn typical of SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 46.6 bits (111), Expect = 4e-07
Identities = 25/89 (28%), Positives = 37/89 (41%), Gaps = 15/89 (16%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLAT-------NF 70
Q DV +E + + + GGLDI+V+NAGI A AET+L N
Sbjct: 55 QCDVTSEAQVQSAFEQAVLEFGGLDIVVSNAGI-----ATSSPIAETSLEDWNRSMDINL 109
Query: 71 FALVTVCHMLFPLLRPH---ARVVNVASQ 96
V F +++ +V AS+
Sbjct: 110 TGHFLVSREAFRIMKSQGIGGNIVFNASK 138
>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 = 46.6 bits (111), Expect = 5e-07
Identities = 25/99 (25%), Positives = 42/99 (42%), Gaps = 19/99 (19%)
Query: 7 VCKNNDNVRFHQLDVLNETSI----HKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA 62
V K D V +LDV + SI + D +D+++NNAG++ + A
Sbjct: 45 VAKYGDKVVPLRLDVTDPESIKAAAAQAKD--------VDVVINNAGVLKPAT-LLEEGA 95
Query: 63 ETTLA----TNFFALVTVCHMLFPLLRPHAR--VVNVAS 95
L N F L+ + P+L+ + +VN+ S
Sbjct: 96 LEALKQEMDVNVFGLLRLAQAFAPVLKANGGGAIVNLNS 134
>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 = 46.5 bits (111), Expect = 5e-07
Identities = 27/99 (27%), Positives = 45/99 (45%), Gaps = 9/99 (9%)
Query: 5 KKVCKNNDNVRFH--QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA 62
V+ QLDV + SI +++ + +DILVNNAG+ G P +
Sbjct: 41 ADELGAKFPVKVLPLQLDVSDRESIEAALENLPEEFRDIDILVNNAGLA-LGLDPAQEAD 99
Query: 63 ----ETTLATNFFALVTVCHMLFPLL--RPHARVVNVAS 95
ET + TN L+ V ++ P++ R ++N+ S
Sbjct: 100 LEDWETMIDTNVKGLLNVTRLILPIMIARNQGHIINLGS 138
>gnl|CDD|187625 cd05367, SPR-like_SDR_c, sepiapterin reductase (SPR)-like,
classical (c) SDRs. Human SPR, a member of the SDR
family, catalyzes the NADP-dependent reduction of
sepiaptern to 7,8-dihydrobiopterin (BH2). In addition to
SPRs, this subgroup also contains Bacillus cereus yueD,
a benzil reductase, which catalyzes the stereospecific
reduction of benzil to (S)-benzoin. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 241
Score = 46.1 bits (110), Expect = 8e-07
Identities = 21/96 (21%), Positives = 36/96 (37%), Gaps = 14/96 (14%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTL--- 66
V + D+ + + +L + I+ G D+L+NNAG + P + L
Sbjct: 47 PGLRVTTVKADLSDAAGVEQLLEAIRKLDGERDLLINNAGSL----GPVSKIEFIDLDEL 102
Query: 67 ----ATNFFA-LVTVCHML--FPLLRPHARVVNVAS 95
N + + +L F VVNV+S
Sbjct: 103 QKYFDLNLTSPVCLTSTLLRAFKKRGLKKTVVNVSS 138
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 46.0 bits (110), Expect = 9e-07
Identities = 27/89 (30%), Positives = 43/89 (48%), Gaps = 18/89 (20%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE----TTLATN---- 69
Q DV + S+ + D+ + + GG+DILVNNAGI R N + E + TN
Sbjct: 61 QGDVSDAESVERAVDEAKAEFGGVDILVNNAGIT-RDN-LLMRMKEEDWDRVIDTNLTGV 118
Query: 70 FFALVT---VCHMLFPLLRPHARVVNVAS 95
F +T M + + R++N++S
Sbjct: 119 F--NLTKAVARPM---MKQRSGRIINISS 142
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 45.6 bits (108), Expect = 1e-06
Identities = 20/86 (23%), Positives = 34/86 (39%), Gaps = 14/86 (16%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLAT-------NFF 71
+D+++ + + D++ Q G LD LVN AG +G A+ T N
Sbjct: 61 IDLVDPQAARRAVDEVNRQFGRLDALVNIAGAF-----VWGTIADGDADTWDRMYGVNVK 115
Query: 72 ALVTVCHMLFPLL--RPHARVVNVAS 95
+ P L R+VN+ +
Sbjct: 116 TTLNASKAALPALTASGGGRIVNIGA 141
>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 = 45.5 bits (108), Expect = 1e-06
Identities = 26/93 (27%), Positives = 41/93 (44%), Gaps = 4/93 (4%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE--TTLATN 69
D RF LDV +E + D + G LD+LVNNAGI+ G E L N
Sbjct: 51 DAARFFHLDVTDEDGWTAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDIN 110
Query: 70 FFALVTVCHMLFPLLRPHAR--VVNVASQFGML 100
+ + P ++ ++N++S G++
Sbjct: 111 LTGVFLGTRAVIPPMKEAGGGSIINMSSIEGLV 143
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 45.2 bits (108), Expect = 1e-06
Identities = 26/98 (26%), Positives = 34/98 (34%), Gaps = 15/98 (15%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE----TTLA 67
DV +E + + G +DILVNNAG +R N P E A
Sbjct: 53 GRAIAVAADVSDEADVEAAVAAALERFGSVDILVNNAGTTHR-NGPLLDVDEAEFDRIFA 111
Query: 68 TN-----FFALVTVCHMLFPLLRPHA-RVVNVASQFGM 99
N + V M +VNVAS G+
Sbjct: 112 VNVKSPYLWTQAAVPAM----RGEGGGAIVNVASTAGL 145
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 45.7 bits (109), Expect = 1e-06
Identities = 30/89 (33%), Positives = 43/89 (48%), Gaps = 14/89 (15%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAG-IIYRGNAPFGQQA---ETTLATNFFA 72
+ D+ + ++ DI +HG +D LVNNAG I R + E T+A N+F
Sbjct: 425 YTCDLTDSAAVDHTVKDILAEHGHVDYLVNNAGRSIRRSVENSTDRFHDYERTMAVNYFG 484
Query: 73 LVTVCHMLFPLLRPHAR------VVNVAS 95
V ++ LL PH R VVNV+S
Sbjct: 485 AV---RLILGLL-PHMRERRFGHVVNVSS 509
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 45.3 bits (108), Expect = 2e-06
Identities = 29/97 (29%), Positives = 40/97 (41%), Gaps = 16/97 (16%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI--IYRGN----APFGQQAETTL 66
V F DV + ++ + D Q G +D LVNNAG+ RG+ P + + L
Sbjct: 53 EVIFFPADVADLSAHEAMLDAAQAAWGRIDCLVNNAGVGVKVRGDLLDLTP--ESFDRVL 110
Query: 67 ATN-----FFALVTVCHMLF---PLLRPHARVVNVAS 95
A N F ML P PH +V V+S
Sbjct: 111 AINLRGPFFLTQAVAKRMLAQPEPEELPHRSIVFVSS 147
>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 = 45.3 bits (108), Expect = 2e-06
Identities = 13/32 (40%), Positives = 21/32 (65%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
DV + + + ++I+ + G +DILVNNAGI
Sbjct: 55 CDVSDREDVKAVVEEIEEELGPIDILVNNAGI 86
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 45.2 bits (108), Expect = 2e-06
Identities = 22/103 (21%), Positives = 36/103 (34%), Gaps = 15/103 (14%)
Query: 3 NCKKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA 62
D DV +E ++ ++ GG+DI+V+NAGI A G
Sbjct: 461 AAAAELGGPDRALGVACDVTDEAAVQAAFEEAALAFGGVDIVVSNAGI-----AISGPIE 515
Query: 63 ETTLAT-------NFFALVTVCHMLFPLLRPHA---RVVNVAS 95
ET+ N V +++ +V +AS
Sbjct: 516 ETSDEDWRRSFDVNATGHFLVAREAVRIMKAQGLGGSIVFIAS 558
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 44.8 bits (106), Expect = 2e-06
Identities = 26/88 (29%), Positives = 44/88 (50%), Gaps = 8/88 (9%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET----TLATNFFAL 73
+ DV N + K + ++ + G +D+LVNNAGI+Y PF + E + N
Sbjct: 57 KCDVGNRDQVKKSKEVVEKEFGRVDVLVNNAGIMYL--MPFEEFDEEKYNKMIKINLNGA 114
Query: 74 VTVCHMLFPLLRP--HARVVNVASQFGM 99
+ + PLL+ + +VN+AS G+
Sbjct: 115 IYTTYEFLPLLKLSKNGAIVNIASNAGI 142
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 44.1 bits (104), Expect = 5e-06
Identities = 23/92 (25%), Positives = 37/92 (40%), Gaps = 11/92 (11%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA----ETTLATNFF-A 72
+DV +E I + + + + G +D+LVNNAG+ A N A
Sbjct: 57 AMDVSDEAQIREGFEQLHREFGRIDVLVNNAGVTDPTMTATLDTTLEEFARLQAINLTGA 116
Query: 73 LVTVCH----MLFPLLRPHARVVNVASQFGML 100
+ M+ A +VNVAS G++
Sbjct: 117 YLVAREALRLMIEQ--GHGAAIVNVASGAGLV 146
Score = 39.1 bits (91), Expect = 3e-04
Identities = 17/50 (34%), Positives = 24/50 (48%), Gaps = 4/50 (8%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA 67
Q D+ +E ++ IQ + G LD+LVNNAGI F E +
Sbjct: 321 QADITDEAAVESAFAQIQARWGRLDVLVNNAGI----AEVFKPSLEQSAE 366
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 43.6 bits (103), Expect = 6e-06
Identities = 27/95 (28%), Positives = 47/95 (49%), Gaps = 11/95 (11%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI------IYRGNAPFGQQAETT 65
DN+ QLDV N +I ++ + + +D+LVNNAG+ ++ + + ET
Sbjct: 46 DNLYIAQLDVRNRAAIEEMLASLPAEWRNIDVLVNNAGLALGLEPAHKASV---EDWETM 102
Query: 66 LATNFFALVTVCHMLFPLL--RPHARVVNVASQFG 98
+ TN LV + + P + R H ++N+ S G
Sbjct: 103 IDTNNKGLVYMTRAVLPGMVERNHGHIINIGSTAG 137
>gnl|CDD|187644 cd08940, HBDH_SDR_c, d-3-hydroxybutyrate dehydrogenase (HBDH),
classical (c) SDRs. DHBDH, an NAD+ -dependent enzyme,
catalyzes the interconversion of D-3-hydroxybutyrate and
acetoacetate. It is a classical SDR, with the canonical
NAD-binding motif and active site tetrad. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 43.6 bits (103), Expect = 7e-06
Identities = 28/92 (30%), Positives = 45/92 (48%), Gaps = 8/92 (8%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQ----QAETTLATN 69
V +H D+ +I + Q Q GG+DILVNNAGI + AP + + +A N
Sbjct: 55 VLYHGADLSKPAAIEDMVAYAQRQFGGVDILVNNAGIQH--VAPIEDFPTEKWDAIIALN 112
Query: 70 FFALVTVCHMLFPLLRPH--ARVVNVASQFGM 99
A+ + P ++ R++N+AS G+
Sbjct: 113 LSAVFHTTRLALPHMKKQGWGRIINIASVHGL 144
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 43.2 bits (102), Expect = 8e-06
Identities = 21/88 (23%), Positives = 37/88 (42%), Gaps = 8/88 (9%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQ----QAETTLATNFFALV 74
D+ +E ++ I +HG LDILVNN G R P + L T+ A +
Sbjct: 67 FDIADEEAVAAAFARIDAEHGRLDILVNNVG--ARDRRPLAELDDAAIRALLETDLVAPI 124
Query: 75 TVCHMLFPLLRPHA--RVVNVASQFGML 100
+ + ++ R++ + S G +
Sbjct: 125 LLSRLAAQRMKRQGYGRIIAITSIAGQV 152
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 43.3 bits (103), Expect = 8e-06
Identities = 22/93 (23%), Positives = 39/93 (41%), Gaps = 8/93 (8%)
Query: 9 KNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQ----AET 64
+ + + DV +E + L + I + G +DILVNNAGI G +
Sbjct: 52 EEGGDAIAVKADVSSEEDVENLVEQIVEKFGKIDILVNNAGISNFG--LVTDMTDEEWDR 109
Query: 65 TLATNFFALVTVCHMLFPLL--RPHARVVNVAS 95
+ N ++ + P + R +VN++S
Sbjct: 110 VIDVNLTGVMLLTRYALPYMIKRKSGVIVNISS 142
>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 = 43.1 bits (102), Expect = 9e-06
Identities = 25/92 (27%), Positives = 40/92 (43%), Gaps = 6/92 (6%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG---NAPFGQQAETTLATN 69
+V + DV E I + + GGLDILVNNAGI + P + + +A
Sbjct: 51 SVIYLPADVTKEDEIADMIAAAAAEFGGLDILVNNAGIQHVAPIEEFPP-EDWDRIIAVM 109
Query: 70 FFALVTVCHMLFPLLRP--HARVVNVASQFGM 99
+ P ++ R++N+AS G+
Sbjct: 110 LTSAFHTIRAALPHMKKQGWGRIINIASAHGL 141
>gnl|CDD|187613 cd05355, SDR_c1, classical (c) SDR, subgroup 1. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 270
Score = 43.0 bits (102), Expect = 9e-06
Identities = 26/102 (25%), Positives = 43/102 (42%), Gaps = 14/102 (13%)
Query: 27 IHKLHDDIQTQHGGLDILVNNAGIIYRGN--APFG-QQAETTLATNFFALVTVCHMLFPL 83
+ ++ + G LDILVNNA + +Q E T TN F++ + P
Sbjct: 96 VKEVVK----EFGKLDILVNNAAYQHPQESIEDITTEQLEKTFRTNIFSMFYLTKAALPH 151
Query: 84 LRPHARVVNVASQFGMLYKVPSQELKQTLLNDSLTEDQLVGM 125
L+ + ++N S YK S LL+ + T+ +V
Sbjct: 152 LKKGSSIINTTS--VTAYK-GS----PHLLDYAATKGAIVAF 186
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 43.0 bits (102), Expect = 1e-05
Identities = 16/34 (47%), Positives = 21/34 (61%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+DV +E +I+ D GG+DILVNNAGI
Sbjct: 58 VAMDVTDEEAINAGIDYAVETFGGVDILVNNAGI 91
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 42.8 bits (101), Expect = 1e-05
Identities = 26/89 (29%), Positives = 38/89 (42%), Gaps = 9/89 (10%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPF----GQQAETTLATN 69
DV + + D + G LDILVNNAGI +A F ++ + + N
Sbjct: 61 ALGLAFDVRDFAATRAALDAGVEEFGRLDILVNNAGIAT--DAAFAELSIEEWDDVIDVN 118
Query: 70 FFALVTVCH-MLFPLLRPH--ARVVNVAS 95
V L P++R R+VN+AS
Sbjct: 119 LDGFFNVTQAALPPMIRARRGGRIVNIAS 147
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 43.1 bits (102), Expect = 1e-05
Identities = 28/91 (30%), Positives = 45/91 (49%), Gaps = 12/91 (13%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA---ETTLATN 69
+V +LD+ + S+ D ++ + +D+L+NNAG++Y P A E TN
Sbjct: 68 DVTLQELDLTSLASVRAAADALRAAYPRIDLLINNAGVMY---TPKQTTADGFELQFGTN 124
Query: 70 F---FALV-TVCHMLFPLLRPHARVVNVASQ 96
FAL + L P+ P +RVV V+S
Sbjct: 125 HLGHFALTGLLLDRLLPV--PGSRVVTVSSG 153
>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 = 42.8 bits (101), Expect = 1e-05
Identities = 24/99 (24%), Positives = 43/99 (43%), Gaps = 14/99 (14%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI----IYRGNAPFGQQAETTLA 67
+ R + DV + S ++ + G +D+LVNNAGI ++ +Q +
Sbjct: 50 FDFRVVEGDVSSFESCKAAVAKVEAELGPIDVLVNNAGITRDATFKKMTY--EQWSAVID 107
Query: 68 TNFFALVTVCHMLFP--LLRPHARVVNVAS------QFG 98
TN ++ V + R R++N++S QFG
Sbjct: 108 TNLNSVFNVTQPVIDGMRERGWGRIINISSVNGQKGQFG 146
>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 = 42.8 bits (101), Expect = 1e-05
Identities = 34/104 (32%), Positives = 49/104 (47%), Gaps = 17/104 (16%)
Query: 15 RFHQL--DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA-PFGQQ-----AETTL 66
RF L D+ + +I L D + G +DILVNNAGII R +A F ++ L
Sbjct: 53 RFLSLTADLSDIEAIKALVDSAVEEFGHIDILVNNAGIIRRADAEEFSEKDWDDVMNVNL 112
Query: 67 ATNFFALVTVC-HMLFPLLRPHARVVNVAS----QFGMLYKVPS 105
+ FF H L +++N+AS Q G+ +VPS
Sbjct: 113 KSVFFLTQAAAKHFLKQ--GRGGKIINIASMLSFQGGI--RVPS 152
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 42.8 bits (101), Expect = 1e-05
Identities = 13/46 (28%), Positives = 25/46 (54%)
Query: 5 KKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
K+ N + + +D+ +E + +I+ Q G +D+L NNAG+
Sbjct: 47 DKIKSNGGKAKAYHVDISDEQQVKDFASEIKEQFGRVDVLFNNAGV 92
>gnl|CDD|187639 cd08934, CAD_SDR_c, clavulanic acid dehydrogenase (CAD), classical
(c) SDR. CAD catalyzes the NADP-dependent reduction of
clavulanate-9-aldehyde to clavulanic acid, a
beta-lactamase inhibitor. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 243
Score = 42.5 bits (100), Expect = 2e-05
Identities = 25/81 (30%), Positives = 35/81 (43%), Gaps = 4/81 (4%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETT--LATNFFALVTV 76
LDV +E + + G LDILVNNAGI+ G + T + TN L+
Sbjct: 59 LDVTDEQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLLGLMYT 118
Query: 77 CHMLFPLLRPH--ARVVNVAS 95
H P +VN++S
Sbjct: 119 THAALPHHLLRNKGTIVNISS 139
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 42.3 bits (100), Expect = 2e-05
Identities = 28/86 (32%), Positives = 43/86 (50%), Gaps = 16/86 (18%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN-APFGQQAETT-------LATNFF 71
DVL+E + ++ + GG+D+LVNNAG +G + F A+TT L +F
Sbjct: 67 DVLDEADVAAFAAAVEARFGGVDMLVNNAG---QGRVSTF---ADTTDDAWRDELELKYF 120
Query: 72 ALVTVCHMLFPLLR--PHARVVNVAS 95
+++ PLLR A +V V S
Sbjct: 121 SVINPTRAFLPLLRASAAASIVCVNS 146
>gnl|CDD|237099 PRK12428, PRK12428, 3-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 241
Score = 42.3 bits (100), Expect = 2e-05
Identities = 27/86 (31%), Positives = 36/86 (41%), Gaps = 9/86 (10%)
Query: 16 FHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVT 75
F Q D+ + SI + G +D L N AG+ G AP E NF L
Sbjct: 27 FIQADLGDPASIDAA---VAALPGRIDALFNIAGV--PGTAP----VELVARVNFLGLRH 77
Query: 76 VCHMLFPLLRPHARVVNVASQFGMLY 101
+ L P + P +VNVAS G +
Sbjct: 78 LTEALLPRMAPGGAIVNVASLAGAEW 103
>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 = 41.9 bits (99), Expect = 2e-05
Identities = 26/90 (28%), Positives = 40/90 (44%), Gaps = 22/90 (24%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-------TN- 69
Q DV + + + +L D + GG+DILVNNAG++ AET+ N
Sbjct: 59 QADVSDPSQVARLFDAAEKAFGGVDILVNNAGVM-----LKKPIAETSEEEFDRMFTVNT 113
Query: 70 ---FFALVTV-CHMLFPLLRPHARVVNVAS 95
FF L + R R++N++S
Sbjct: 114 KGAFFVLQEAAKRL-----RDGGRIINISS 138
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 42.1 bits (100), Expect = 2e-05
Identities = 23/85 (27%), Positives = 38/85 (44%), Gaps = 10/85 (11%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI-----IYRGNAPFGQQAETTLATNFFA 72
LD+ + ++ + + +HGGLDI+V+NAGI + + LA N A
Sbjct: 262 ALDITAPDAPARIAEHLAERHGGLDIVVHNAGITRDKTLANMDEARWDS---VLAVNLLA 318
Query: 73 LVTVCHMLFP--LLRPHARVVNVAS 95
+ + L L R+V V+S
Sbjct: 319 PLRITEALLAAGALGDGGRIVGVSS 343
>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 = 41.6 bits (98), Expect = 3e-05
Identities = 25/89 (28%), Positives = 36/89 (40%), Gaps = 4/89 (4%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA--ETTLAT 68
+V D + L D ++ + G +D+LV+NAGI G A E +
Sbjct: 44 GGDVEAVPYDARDPEDARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSI 103
Query: 69 NFFALVTVCHMLFPLLR--PHARVVNVAS 95
N A + L P LR RVV + S
Sbjct: 104 NVIAPAELTRALLPALREAGSGRVVFLNS 132
>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 = 41.7 bits (98), Expect = 3e-05
Identities = 27/96 (28%), Positives = 34/96 (35%), Gaps = 14/96 (14%)
Query: 13 NVRFHQLDVLNETSIHK-LHDDIQTQHGGLDILVNNAGIIYRGNA--------PFGQQAE 63
+ Q D+ E S H+ L D G LD LVNNAGI R F +
Sbjct: 52 RAIYFQADI-GELSDHEALLDQAWEDFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIA 110
Query: 64 TTLATNFFALVTVCHMLF----PLLRPHARVVNVAS 95
L FF V + PH ++ V S
Sbjct: 111 INLRGPFFLTQAVARRMVEQPDRFDGPHRSIIFVTS 146
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 41.7 bits (98), Expect = 3e-05
Identities = 20/48 (41%), Positives = 26/48 (54%), Gaps = 4/48 (8%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA 67
DV NE + + D +Q+ G LD LVNNAGI+ AP A+ A
Sbjct: 60 DVANEADVIAMFDAVQSAFGRLDALVNNAGIV----APSMPLADMDAA 103
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 41.3 bits (97), Expect = 4e-05
Identities = 17/40 (42%), Positives = 23/40 (57%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYR 53
V F Q+D+ S K+ + + G +DILVNNAG I R
Sbjct: 65 VTFVQVDLTKPESAEKVVKEALEEFGKIDILVNNAGTIRR 104
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 41.3 bits (97), Expect = 4e-05
Identities = 26/85 (30%), Positives = 44/85 (51%), Gaps = 12/85 (14%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAG-IIYRGNAPFGQQ------AETTLATNFFA 72
D+ + ++ L D++ + GG+DIL+NNAG I R P + E T+ N++A
Sbjct: 97 DLSDLDAVDALVADVEKRIGGVDILINNAGRSIRR---PLAESLDRWHDVERTMVLNYYA 153
Query: 73 LVTVCHMLFP--LLRPHARVVNVAS 95
+ + L P L R ++NVA+
Sbjct: 154 PLRLIRGLAPGMLERGDGHIINVAT 178
>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 = 40.9 bits (96), Expect = 4e-05
Identities = 25/77 (32%), Positives = 31/77 (40%), Gaps = 8/77 (10%)
Query: 39 GGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTVCHMLFPLLRPHA--RVVNVASQ 96
G LD LVN AG+ G A L N+F L + L P LR V V+S
Sbjct: 59 GVLDGLVNCAGV--GGTTV----AGLVLKVNYFGLRALMEALLPRLRKGHGPAAVVVSSI 112
Query: 97 FGMLYKVPSQELKQTLL 113
G + EL + L
Sbjct: 113 AGAGWAQDKLELAKALA 129
>gnl|CDD|187629 cd05371, HSD10-like_SDR_c, 17hydroxysteroid dehydrogenase type 10
(HSD10)-like, classical (c) SDRs. HSD10, also known as
amyloid-peptide-binding alcohol dehydrogenase (ABAD),
was previously identified as a L-3-hydroxyacyl-CoA
dehydrogenase, HADH2. In fatty acid metabolism, HADH2
catalyzes the third step of beta-oxidation, the
conversion of a hydroxyl to a keto group in the
NAD-dependent oxidation of L-3-hydroxyacyl CoA. In
addition to alcohol dehydrogenase and HADH2 activites,
HSD10 has steroid dehydrogenase activity. Although the
mechanism is unclear, HSD10 is implicated in the
formation of amyloid beta-petide in the brain (which is
linked to the development of Alzheimer's disease).
Although HSD10 is normally concentrated in the
mitochondria, in the presence of amyloid beta-peptide
it translocates into the plasma membrane, where it's
action may generate cytotoxic aldehydes and may lower
estrogen levels through its use of 17-beta-estradiol as
a substrate. HSD10 is a member of the SRD family, but
differs from other SDRs by the presence of two
insertions of unknown function. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 252
Score = 41.1 bits (97), Expect = 5e-05
Identities = 18/47 (38%), Positives = 24/47 (51%)
Query: 6 KVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY 52
V K DN RF +DV +E + + + G LDI+VN AGI
Sbjct: 41 TVAKLGDNCRFVPVDVTSEKDVKAALALAKAKFGRLDIVVNCAGIAV 87
>gnl|CDD|187624 cd05366, meso-BDH-like_SDR_c, meso-2,3-butanediol
dehydrogenase-like, classical (c) SDRs. 2,3-butanediol
dehydrogenases (BDHs) catalyze the NAD+ dependent
conversion of 2,3-butanediol to acetonin; BDHs are
classified into types according to their
stereospecificity as to substrates and products.
Included in this subgroup are Klebsiella pneumonia
meso-BDH which catalyzes meso-2,3-butanediol to
D(-)-acetonin, and Corynebacterium glutamicum L-BDH
which catalyzes lX+)-2,3-butanediol to L(+)-acetonin.
This subgroup is comprised of classical SDRs with the
characteristic catalytic triad and NAD-binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 40.8 bits (96), Expect = 5e-05
Identities = 13/39 (33%), Positives = 19/39 (48%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGII 51
N DV ++ + L D + G D++VNNAGI
Sbjct: 53 NAVAVGADVTDKDDVEALIDQAVEKFGSFDVMVNNAGIA 91
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 40.8 bits (96), Expect = 6e-05
Identities = 27/92 (29%), Positives = 43/92 (46%), Gaps = 16/92 (17%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA-----ETTLA 67
+ LD+ + S+ L + ++ + + +L+NNAG++ P +Q E
Sbjct: 66 KLSLRALDLSSLASVAALGEQLRAEGRPIHLLINNAGVM----TPPERQTTADGFELQFG 121
Query: 68 TN---FFALVTVCHMLFPLLRP-HARVVNVAS 95
TN FAL H L PLLR ARV + +S
Sbjct: 122 TNHLGHFALTA--H-LLPLLRAGRARVTSQSS 150
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 40.8 bits (96), Expect = 6e-05
Identities = 14/41 (34%), Positives = 23/41 (56%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
++N +F DV + ++ +I + G +D LVNNAGI
Sbjct: 47 QHENYQFVPTDVSSAEEVNHTVAEIIEKFGRIDGLVNNAGI 87
>gnl|CDD|187601 cd05343, Mgc4172-like_SDR_c, human Mgc4172-like, classical (c)
SDRs. Human Mgc4172-like proteins, putative SDRs.
These proteins are members of the SDR family, with a
canonical active site tetrad and a typical Gly-rich
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain
with a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 40.6 bits (95), Expect = 7e-05
Identities = 15/35 (42%), Positives = 22/35 (62%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY 52
Q D+ NE I + I+TQH G+D+ +NNAG+
Sbjct: 62 QCDLSNEEQILSMFSAIRTQHQGVDVCINNAGLAR 96
>gnl|CDD|187602 cd05344, BKR_like_SDR_like, putative beta-ketoacyl acyl carrier
protein [ACP] reductase (BKR)-like, SDR. This subgroup
resembles the SDR family, but does not have a perfect
match to the NAD-binding motif or the catalytic tetrad
characteristic of the SDRs. It includes the SDRs, Q9HYA2
from Pseudomonas aeruginosa PAO1 and APE0912 from
Aeropyrum pernix K1. BKR catalyzes the NADPH-dependent
reduction of ACP in the first reductive step of de novo
fatty acid synthesis (FAS). FAS consists of four
elongation steps, which are repeated to extend the fatty
acid chain through the addition of two-carbo units from
malonyl acyl-carrier protein (ACP): condensation,
reduction, dehydration, and a final reduction. Type II
FAS, typical of plants and many bacteria, maintains
these activities on discrete polypeptides, while type I
FAS utilizes one or two multifunctional polypeptides.
BKR resembles enoyl reductase, which catalyzes the
second reduction step in FAS. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 253
Score = 40.3 bits (95), Expect = 7e-05
Identities = 23/85 (27%), Positives = 37/85 (43%), Gaps = 14/85 (16%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-------TNFFA 72
D+ + I +L + G +DILVNNA G P G AE T +
Sbjct: 58 DLTDPEDIDRLVEKAGDAFGRVDILVNNA-----GGPPPGPFAELTDEDWLEAFDLKLLS 112
Query: 73 LVTVCHMLFPLL--RPHARVVNVAS 95
++ + + P + R R+VN++S
Sbjct: 113 VIRIVRAVLPGMKERGWGRIVNISS 137
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 40.3 bits (95), Expect = 8e-05
Identities = 25/86 (29%), Positives = 39/86 (45%), Gaps = 8/86 (9%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA-----ETTLATNFFALV 74
DV + + +L + + GG+DILVNNAGI + F + E + N+ V
Sbjct: 58 DVSDAEACERLIEAAVARFGGIDILVNNAGITMW--SRFDELTDLSVFERVMRVNYLGAV 115
Query: 75 TVCHMLFP-LLRPHARVVNVASQFGM 99
H P L ++V V+S G+
Sbjct: 116 YCTHAALPHLKASRGQIVVVSSLAGL 141
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 40.4 bits (95), Expect = 8e-05
Identities = 25/86 (29%), Positives = 39/86 (45%), Gaps = 2/86 (2%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFF 71
D V LD+ + S+ + +DIL+NNAG++ G E ATN
Sbjct: 71 DGVEVVMLDLADLESVRAFAERFLDSGRRIDILINNAGVMACPETRVGDGWEAQFATNHL 130
Query: 72 ALVTVCHMLFPLLRP--HARVVNVAS 95
+ ++L+P L ARVV ++S
Sbjct: 131 GHFALVNLLWPALAAGAGARVVALSS 156
>gnl|CDD|187668 cd09808, DHRS-12_like_SDR_c-like, human dehydrogenase/reductase SDR
family member (DHRS)-12/FLJ13639-like, classical
(c)-like SDRs. Classical SDR-like subgroup containing
human DHRS-12/FLJ13639, the 36K protein of zebrafish CNS
myelin, and related proteins. DHRS-12/FLJ13639 is
expressed in neurons and oligodendrocytes in the human
cerebral cortex. Proteins in this subgroup share the
glycine-rich NAD-binding motif of the classical SDRs,
have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 255
Score = 40.3 bits (94), Expect = 8e-05
Identities = 24/92 (26%), Positives = 41/92 (44%), Gaps = 3/92 (3%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNF 70
N N+ H +D+ + + + ++ + + L +L+NNAG + E ATN
Sbjct: 51 NQNIFLHIVDMSDPKQVWEFVEEFKEEGKKLHVLINNAGCMVNKRELTEDGLEKNFATNT 110
Query: 71 FALVTVCHMLFPLLR--PHARVVNVASQFGML 100
+ L P+L RV+ V+S GML
Sbjct: 111 LGTYILTTHLIPVLEKEEDPRVITVSSG-GML 141
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 40.5 bits (95), Expect = 8e-05
Identities = 24/83 (28%), Positives = 43/83 (51%), Gaps = 10/83 (12%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG---NAP---FGQQAETTLATNFFAL 73
DV + ++ D + + G +DILVNNAG+ +R + P F + T +++ F+
Sbjct: 67 DVTDHDAVRAAIDAFEAEIGPIDILVNNAGMQFRTPLEDFPADAFERLLRTNISSVFYVG 126
Query: 74 VTVC-HMLFPLLRPHARVVNVAS 95
V HM + R +++N+AS
Sbjct: 127 QAVARHM---IARGAGKIINIAS 146
>gnl|CDD|187592 cd05331, DH-DHB-DH_SDR_c, 2,3 dihydro-2,3 dihydrozybenzoate
dehydrogenases, classical (c) SDRs. 2,3 dihydro-2,3
dihydrozybenzoate dehydrogenase shares the
characteristics of the classical SDRs. This subgroup
includes Escherichai coli EntA which catalyzes the
NAD+-dependent oxidation of
2,3-dihydro-2,3-dihydroxybenzoate to
2,3-dihydroxybenzoate during biosynthesis of the
siderophore Enterobactin. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 40.1 bits (94), Expect = 1e-04
Identities = 24/98 (24%), Positives = 43/98 (43%), Gaps = 4/98 (4%)
Query: 2 CNCKKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN--APFG 59
+ + D +R LDV + ++ ++ + +HG +D LVN AG++ G
Sbjct: 30 LPFVLLLEYGDPLRLTPLDVADAAAVREVCSRLLAEHGPIDALVNCAGVLRPGATDPLST 89
Query: 60 QQAETTLATNFFALVTVCHMLFPLL--RPHARVVNVAS 95
+ E T A N + + + P + R +V VAS
Sbjct: 90 EDWEQTFAVNVTGVFNLLQAVAPHMKDRRTGAIVTVAS 127
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 40.0 bits (94), Expect = 1e-04
Identities = 20/54 (37%), Positives = 25/54 (46%), Gaps = 12/54 (22%)
Query: 39 GGLDILVNNAGIIYRGNAPFG-------QQAETTLATNFFALVTVCHMLFPLLR 85
G LDI+VNNA G FG +A + TNFF + V + P LR
Sbjct: 76 GRLDIVVNNA-----GYGLFGMIEEVTESEARAQIDTNFFGALWVTQAVLPYLR 124
>gnl|CDD|187603 cd05345, BKR_3_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP] reductase (BKR), subgroup 3, classical (c) SDR.
This subgroup includes the putative Brucella melitensis
biovar Abortus 2308 BKR, FabG, Mesorhizobium loti
MAFF303099 FabG, and other classical SDRs. BKR, a
member of the SDR family, catalyzes the NADPH-dependent
reduction of acyl carrier protein in the first
reductive step of de novo fatty acid synthesis (FAS).
FAS consists of 4 elongation steps, which are repeated
to extend the fatty acid chain thru the addition of
two-carbo units from malonyl acyl-carrier protein
(ACP): condensation, reduction, dehydration, and final
reduction. Type II FAS, typical of plants and many
bacteria, maintains these activities on discrete
polypeptides, while type I Fas utilizes one or 2
multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is
not generally found among SDRs.
Length = 248
Score = 39.7 bits (93), Expect = 1e-04
Identities = 17/46 (36%), Positives = 24/46 (52%), Gaps = 1/46 (2%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAP 57
+ Q DV + + + ++ G LDILVNNAGI +R N P
Sbjct: 51 EAAIAIQADVTKRADVEAMVEAALSKFGRLDILVNNAGITHR-NKP 95
>gnl|CDD|187662 cd09761, A3DFK9-like_SDR_c, Clostridium thermocellum A3DFK9-like, a
putative carbohydrate or polyalcohol metabolizing SDR,
classical (c) SDRs. This subgroup includes a putative
carbohydrate or polyalcohol metabolizing SDR (A3DFK9)
from Clostridium thermocellum. Its members have a
TGXXXGXG classical-SDR glycine-rich NAD-binding motif,
and some have a canonical SDR active site tetrad (A3DFK9
lacks the upstream Asn). SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 242
Score = 39.9 bits (93), Expect = 1e-04
Identities = 21/87 (24%), Positives = 38/87 (43%), Gaps = 5/87 (5%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA---PFGQQAETTLATN 69
N+ F DV +ET + + + + G +D+LVNNA +G + + L+ N
Sbjct: 48 NLFFVHGDVADETLVKFVVYAMLEKLGRIDVLVNNAARGSKGILSSLLLEEW-DRILSVN 106
Query: 70 FFALVTVCHMLFPLLRPH-ARVVNVAS 95
+ L + R++N+AS
Sbjct: 107 LTGPYELSRYCRDELIKNKGRIINIAS 133
>gnl|CDD|187642 cd08937, DHB_DH-like_SDR_c,
1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase (DHB DH)-like, classical (c) SDR. DHB DH
(aka 1,2-dihydroxycyclohexa-3,5-diene-1-carboxylate
dehydrogenase) catalyzes the NAD-dependent conversion of
1,2-dihydroxycyclohexa-3,4-diene carboxylate to a
catechol. This subgroup also contains Pseudomonas putida
F1 CmtB, 2,3-dihydroxy-2,3-dihydro-p-cumate
dehydrogenase, the second enzyme in the pathway for
catabolism of p-cumate catabolism. This subgroup shares
the glycine-rich NAD-binding motif of the classical SDRs
and shares the same catalytic triad; however, the
upstream Asn implicated in cofactor binding or catalysis
in other SDRs is generally substituted by a Ser. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 39.8 bits (93), Expect = 1e-04
Identities = 22/93 (23%), Positives = 37/93 (39%), Gaps = 9/93 (9%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNA-GIIYRGNAPF----GQQAET 64
D H D+ + + G +D+L+NN G I+ P+ +Q E
Sbjct: 50 AGDAAHVHTADLETYAGAQGVVRAAVERFGRVDVLINNVGGTIWA--KPYEHYEEEQIEA 107
Query: 65 TLATNFFALVTVCHMLFP--LLRPHARVVNVAS 95
+ + F + C + P L R +VNV+S
Sbjct: 108 EIRRSLFPTLWCCRAVLPHMLERQQGVIVNVSS 140
>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 = 39.6 bits (93), Expect = 2e-04
Identities = 15/42 (35%), Positives = 23/42 (54%)
Query: 9 KNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
K + ++ DV ++ S+ K IQ G +DIL+ NAGI
Sbjct: 55 KYGVKTKAYKCDVSSQESVEKTFKQIQKDFGKIDILIANAGI 96
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 39.3 bits (92), Expect = 2e-04
Identities = 25/82 (30%), Positives = 35/82 (42%), Gaps = 4/82 (4%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE--TTLATNFFALVT 75
DV +E L GGL +LVNNAG+ G + E +A N ++
Sbjct: 57 VQDVTDEAQWQALLAQAADAMGGLSVLVNNAGVGSFGAIEQIELDEWRRVMAINVESIFL 116
Query: 76 VCHMLFPLLRPH--ARVVNVAS 95
C P LR A +VN++S
Sbjct: 117 GCKHALPYLRASQPASIVNISS 138
>gnl|CDD|187634 cd08929, SDR_c4, classical (c) SDR, subgroup 4. This subgroup has
a canonical active site tetrad and a typical Gly-rich
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 226
Score = 39.0 bits (91), Expect = 2e-04
Identities = 23/83 (27%), Positives = 34/83 (40%), Gaps = 4/83 (4%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI-IYRGNAPFG--QQAETTLATNFFALVTV 76
DV +E + + D ++ GGLD LVNNAG+ + + + A +
Sbjct: 54 DVRDEADVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEELTPEEWRLVLDTNLTGAFYCI 113
Query: 77 CHMLFPLL-RPHARVVNVASQFG 98
LL R +VNV S G
Sbjct: 114 HKAAPALLRRGGGTIVNVGSLAG 136
>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 = 39.3 bits (92), Expect = 2e-04
Identities = 17/44 (38%), Positives = 22/44 (50%), Gaps = 2/44 (4%)
Query: 16 FHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG 59
Q DV E + L + G LDILVNNAG+ +G+A
Sbjct: 57 AVQADVSKEEDVVALFQSAIKEFGTLDILVNNAGL--QGDASSH 98
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 38.7 bits (91), Expect = 3e-04
Identities = 15/38 (39%), Positives = 20/38 (52%), Gaps = 4/38 (10%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAP 57
DVL++ S+ + I G DIL+N AG GN P
Sbjct: 67 DVLDKESLEQARQQILEDFGPCDILINGAG----GNHP 100
>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 = 38.9 bits (91), Expect = 3e-04
Identities = 23/79 (29%), Positives = 38/79 (48%), Gaps = 3/79 (3%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE--TTLATNFFALVTVC 77
D+ E ++ + G LDILVNNAGI+ +G E + N A++ +
Sbjct: 63 DLTEEEGQDRIISTTLAKFGRLDILVNNAGILAKGGGEDQDIEEYDKVMNLNLRAVIYLT 122
Query: 78 HMLFP-LLRPHARVVNVAS 95
+ P L++ +VNV+S
Sbjct: 123 KLAVPHLIKTKGEIVNVSS 141
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 39.1 bits (91), Expect = 3e-04
Identities = 19/64 (29%), Positives = 31/64 (48%), Gaps = 2/64 (3%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFF 71
++DV +E ++ D+ +GG+DI+VNNAGI ++PF + N
Sbjct: 465 GRAVALKMDVTDEQAVKAAFADVALAYGGVDIVVNNAGIAT--SSPFEETTLQEWQLNLD 522
Query: 72 ALVT 75
L T
Sbjct: 523 ILAT 526
>gnl|CDD|187640 cd08935, mannonate_red_SDR_c, putative D-mannonate oxidoreductase,
classical (c) SDR. D-mannonate oxidoreductase catalyzes
the NAD-dependent interconversion of D-mannonate and
D-fructuronate. This subgroup includes Bacillus
subtitils UxuB/YjmF, a putative D-mannonate
oxidoreductase; the B. subtilis UxuB gene is part of a
putative ten-gene operon (the Yjm operon) involved in
hexuronate catabolism. Escherichia coli UxuB does not
belong to this subgroup. This subgroup has a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 271
Score = 39.0 bits (91), Expect = 3e-04
Identities = 21/58 (36%), Positives = 29/58 (50%), Gaps = 8/58 (13%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG----QQAETTLATNFFAL 73
DVL+ S+ + ++I Q G +DIL+N AG GN P + E NFF L
Sbjct: 62 DVLDRASLERAREEIVAQFGTVDILINGAG----GNHPDATTDPEHYEPETEQNFFDL 115
>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 = 38.6 bits (90), Expect = 3e-04
Identities = 27/93 (29%), Positives = 41/93 (44%), Gaps = 12/93 (12%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET----TLATNFFA 72
D+ +E I L + + LD+LVNNAG + AP E+ + N +
Sbjct: 59 IPADLSSEEGIEALVARVAERSDRLDVLVNNAGATW--GAPLEAFPESGWDKVMDINVKS 116
Query: 73 LVTVCHMLFPLLRPH------ARVVNVASQFGM 99
+ + L PLLR ARV+N+ S G+
Sbjct: 117 VFFLTQALLPLLRAAATAENPARVINIGSIAGI 149
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 38.9 bits (91), Expect = 3e-04
Identities = 25/91 (27%), Positives = 41/91 (45%), Gaps = 15/91 (16%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI--------IYRGNAPFGQQAETTLATN 69
LDV + SI ++ + GG+DIL NNA + I R + + +
Sbjct: 58 SLDVTRQDSIDRIVAAAVERFGGIDILFNNAALFDMAPILDISR--DSYDRLFAVNVKGL 115
Query: 70 FFALVTVC-HMLFPLLRPH-ARVVNVASQFG 98
FF + V HM + + +++N+ASQ G
Sbjct: 116 FFLMQAVARHM---VEQGRGGKIINMASQAG 143
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 38.4 bits (90), Expect = 3e-04
Identities = 14/41 (34%), Positives = 21/41 (51%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG 54
VR + +V +E + I G L+ L+NNAGI+ G
Sbjct: 56 VRGYAANVTDEEDVEATFAQIAEDFGQLNGLINNAGILRDG 96
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 38.5 bits (90), Expect = 3e-04
Identities = 16/42 (38%), Positives = 22/42 (52%)
Query: 9 KNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
N NV DV +E + + D I GGLD+L+ NAG+
Sbjct: 51 NNKGNVLGLAADVRDEADVQRAVDAIVAAFGGLDVLIANAGV 92
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 38.5 bits (90), Expect = 4e-04
Identities = 27/88 (30%), Positives = 41/88 (46%), Gaps = 5/88 (5%)
Query: 18 QLDVLNETSIHKLHDD-IQTQHGGLDILVNNAGIIYRG--NAPFGQQAETTLATNFFALV 74
LD+ + S+ + D+ I L L NNAG G + QQ E +TNFF
Sbjct: 51 LLDLDDPESVERAADEVIALTDNRLYGLFNNAGFGVYGPLSTISRQQMEQQFSTNFFGTH 110
Query: 75 TVCHMLFPLLRPH--ARVVNVASQFGML 100
+ +L P + PH R+V +S G++
Sbjct: 111 QLTMLLLPAMLPHGEGRIVMTSSVMGLI 138
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 38.4 bits (90), Expect = 4e-04
Identities = 21/87 (24%), Positives = 38/87 (43%), Gaps = 10/87 (11%)
Query: 15 RFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI-----IYRGNAPFGQQAETTLATN 69
F Q+D+ ++ + + G +D LVNNAG+ + G F E L +
Sbjct: 58 EFVQVDLTDDAQCRDAVEQTVAKFGRIDGLVNNAGVNDGVGLEAGREAFVASLERNL-IH 116
Query: 70 FFALVTVCHMLFPLLR-PHARVVNVAS 95
++ + H P L+ +VN++S
Sbjct: 117 YYVMA---HYCLPHLKASRGAIVNISS 140
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 38.3 bits (89), Expect = 4e-04
Identities = 16/37 (43%), Positives = 26/37 (70%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
V + ++DV N+ + K D + +++G +DILVNNAGI
Sbjct: 46 VDYFKVDVSNKEQVIKGIDYVISKYGRIDILVNNAGI 82
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 38.0 bits (89), Expect = 4e-04
Identities = 23/98 (23%), Positives = 39/98 (39%), Gaps = 17/98 (17%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGII--YRGNAPFGQQAETT--- 65
+ N F QLD+ ++ L D + + +DIL N AGI+ Y+ P +
Sbjct: 44 SGNFHFLQLDLSDDLE--PLFDWVPS----VDILCNTAGILDDYK---PLLDTSLEEWQH 94
Query: 66 -LATNFFALVTVCHMLFP--LLRPHARVVNVASQFGML 100
TN + + P L R ++N+ S +
Sbjct: 95 IFDTNLTSTFLLTRAYLPQMLERKSGIIINMCSIASFV 132
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 38.2 bits (89), Expect = 5e-04
Identities = 23/86 (26%), Positives = 41/86 (47%), Gaps = 8/86 (9%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI-IYRGNAPF----GQQAETTLATNFFALV 74
DV L ++G DILVNNAG+ ++ +PF + + ++T+F +++
Sbjct: 64 DVSTREGCETLAKATIDRYGVADILVNNAGLGLF---SPFLNVDDKLIDKHISTDFKSVI 120
Query: 75 TVCHMLFPLLRPHARVVNVASQFGML 100
L +R +VN+AS G+
Sbjct: 121 YCSQELAKEMREGGAIVNIASVAGIR 146
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 38.1 bits (88), Expect = 5e-04
Identities = 24/73 (32%), Positives = 39/73 (53%), Gaps = 4/73 (5%)
Query: 27 IHKLHDDIQTQHGG--LDILVNNAGIIYRGNAPFGQQA--ETTLATNFFALVTVCHMLFP 82
+ +L +++Q + G +DILVNNAGI +G + + +A N A + P
Sbjct: 75 VEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIMAVNIKAPFFLIQQTLP 134
Query: 83 LLRPHARVVNVAS 95
LLR RV+N++S
Sbjct: 135 LLRAEGRVINISS 147
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 38.0 bits (89), Expect = 5e-04
Identities = 24/97 (24%), Positives = 40/97 (41%), Gaps = 18/97 (18%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN-APFG-------QQA 62
+ V F D+ + + + GG+DILV+ G G+ AP G ++
Sbjct: 48 PEGVEFVAADLTTAEGCAAVARAVLERLGGVDILVHVLG----GSSAPAGGFAALTDEEW 103
Query: 63 ETTLATNFFALVTVCHMLFPLLRPHAR----VVNVAS 95
+ L N A V + L P + AR +++V S
Sbjct: 104 QDELNLNLLAAVRLDRALLPGMI--ARGSGVIIHVTS 138
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 37.6 bits (88), Expect = 6e-04
Identities = 21/87 (24%), Positives = 39/87 (44%), Gaps = 6/87 (6%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN---APFGQQAETTLATNF 70
+ +D+ N +I ++ Q G D+L+NNAG+ Y G P + + N
Sbjct: 57 AAAYSIDLSNPEAIAPGIAELLEQFGCPDVLINNAGMAYTGPLLEMPLSDW-QWVIQLNL 115
Query: 71 FALVTVCHMLFPLLRPHAR--VVNVAS 95
++ C + P +R ++NV+S
Sbjct: 116 TSVFQCCSAVLPGMRARGGGLIINVSS 142
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 37.6 bits (88), Expect = 7e-04
Identities = 22/94 (23%), Positives = 38/94 (40%), Gaps = 8/94 (8%)
Query: 9 KNNDNVRF--HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA---PFGQQAE 63
++ F LDV + ++ ++ + + G LD+LVN AGI+ G + +
Sbjct: 43 LTQEDYPFATFVLDVSDAAAVAQVCQRLLAETGPLDVLVNAAGILRMGATDSLSD-EDWQ 101
Query: 64 TTLATNFFALVTVCHMLFPLLRPHAR--VVNVAS 95
T A N + + P R +V V S
Sbjct: 102 QTFAVNAGGAFNLFRAVMPQFRRQRSGAIVTVGS 135
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 37.6 bits (88), Expect = 8e-04
Identities = 20/93 (21%), Positives = 36/93 (38%), Gaps = 17/93 (18%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGII------YRGNAPFGQQAETTLA 67
V + DV + ++ D HG D+++ NAGI R + ++ +
Sbjct: 52 VSVYAADVRDADALAAAAADFIAAHGLPDVVIANAGISVGTLTEEREDLAVFRE---VMD 108
Query: 68 TNFFALVTVCHMLFPLL-----RPHARVVNVAS 95
TN+F +V P + +V +AS
Sbjct: 109 TNYFGMVATFQ---PFIAPMRAARRGTLVGIAS 138
>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 = 37.5 bits (87), Expect = 9e-04
Identities = 14/32 (43%), Positives = 20/32 (62%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGII 51
DV +E + L + + GGLD+LVNNAG +
Sbjct: 57 DVTDEQQVAALFERAVEEFGGLDLLVNNAGAM 88
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 37.4 bits (87), Expect = 9e-04
Identities = 25/97 (25%), Positives = 40/97 (41%), Gaps = 16/97 (16%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFA 72
Q DV + ++ L D + + G LD+LVNNAG G TT ++ A
Sbjct: 54 RAFARQGDVGSAEAVEALVDFVAARWGRLDVLVNNAGFGCGGT------VVTTDEADWDA 107
Query: 73 LVTV--------CHMLFPLLRPH--ARVVNVASQFGM 99
++ V P+++ +VN ASQ +
Sbjct: 108 VMRVNVGGVFLWAKYAIPIMQRQGGGSIVNTASQLAL 144
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 37.4 bits (87), Expect = 0.001
Identities = 27/96 (28%), Positives = 41/96 (42%), Gaps = 14/96 (14%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG-------QQAET 64
D + QLDV + ++ + D G +D++V+NAG Y FG Q
Sbjct: 48 DRLWVLQLDVTDSAAVRAVVDRAFAALGRIDVVVSNAG--Y---GLFGAAEELSDAQIRR 102
Query: 65 TLATNFFALVTVCHMLFPLLRPH--ARVVNVASQFG 98
+ TN + V P LR R+V V+S+ G
Sbjct: 103 QIDTNLIGSIQVIRAALPHLRRQGGGRIVQVSSEGG 138
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 37.2 bits (87), Expect = 0.001
Identities = 18/44 (40%), Positives = 25/44 (56%), Gaps = 6/44 (13%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE 63
DV +E I +L ++ + G +DILVNNAG A +G AE
Sbjct: 69 DVADEADIERLAEETLERFGHVDILVNNAG------ATWGAPAE 106
>gnl|CDD|131468 TIGR02415, 23BDH, acetoin reductases. One member of this family,
as characterized in Klebsiella terrigena, is described
as able to interconvert acetoin + NADH with
meso-2,3-butanediol + NAD(+). It is also called capable
of irreversible reduction of diacetyl with NADH to
acetoin. Blomqvist, et al. decline to specify either EC
1.1.1.4 which is (R,R)-butanediol dehydrogenase, or EC
1.1.1.5, which is acetoin dehydrogenase without a
specified stereochemistry, for this enzyme. This enzyme
is a homotetramer in the family of short chain
dehydrogenases (pfam00106). Another member of this
family, from Corynebacterium glutamicum, is called
L-2,3-butanediol dehydrogenase (PMID:11577733) [Energy
metabolism, Fermentation].
Length = 254
Score = 37.4 bits (87), Expect = 0.001
Identities = 12/35 (34%), Positives = 21/35 (60%)
Query: 16 FHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
++LDV ++ + D + GG D++VNNAG+
Sbjct: 53 AYKLDVSDKDQVFSAIDQAAEKFGGFDVMVNNAGV 87
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 37.2 bits (86), Expect = 0.001
Identities = 17/50 (34%), Positives = 27/50 (54%), Gaps = 3/50 (6%)
Query: 15 RFHQL--DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA-PFGQQ 61
+FH + D++ + I + G +DIL+NNAGII R + FG +
Sbjct: 56 KFHFITADLIQQKDIDSIVSQAVEVMGHIDILINNAGIIRRQDLLEFGNK 105
>gnl|CDD|181668 PRK09135, PRK09135, pteridine reductase; Provisional.
Length = 249
Score = 37.2 bits (87), Expect = 0.001
Identities = 24/88 (27%), Positives = 34/88 (38%), Gaps = 7/88 (7%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETT----LA 67
+ Q D+L+ ++ +L G LD LVNNA Y P G E A
Sbjct: 57 GSAAALQADLLDPDALPELVAACVAAFGRLDALVNNASSFYP--TPLGSITEAQWDDLFA 114
Query: 68 TNFFALVTVCHMLFPLLRP-HARVVNVA 94
+N A + P LR +VN+
Sbjct: 115 SNLKAPFFLSQAAAPQLRKQRGAIVNIT 142
>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 = 36.8 bits (86), Expect = 0.001
Identities = 21/97 (21%), Positives = 42/97 (43%), Gaps = 13/97 (13%)
Query: 13 NVRFHQLDVLNETSIHK-LHDDIQTQHGGLDI--LVNNAGIIYRGNAPF----GQQAETT 65
+ D I++ + +++ GLDI LVNN GI + F + +
Sbjct: 52 ETKTIAADFSAGDDIYERIEKELE----GLDIGILVNNVGISHSIPEYFLETPEDELQDI 107
Query: 66 LATNFFALVTVCHMLFP--LLRPHARVVNVASQFGML 100
+ N A + + ++ P + R +VN++S G++
Sbjct: 108 INVNVMATLKMTRLILPGMVKRKKGAIVNISSFAGLI 144
>gnl|CDD|132250 TIGR03206, benzo_BadH, 2-hydroxycyclohexanecarboxyl-CoA
dehydrogenase. Members of this protein family are the
enzyme 2-hydroxycyclohexanecarboxyl-CoA dehydrogenase.
The enzymatic properties were confirmed experimentally
in Rhodopseudomonas palustris; the enzyme is
homotetrameric, and not sensitive to oxygen. This enzyme
is part of proposed pathway for degradation of
benzoyl-CoA to 3-hydroxypimeloyl-CoA that differs from
the analogous in Thauera aromatica. It also may occur in
degradation of the non-aromatic compound
cyclohexane-1-carboxylate.
Length = 250
Score = 36.8 bits (85), Expect = 0.001
Identities = 23/86 (26%), Positives = 38/86 (44%), Gaps = 10/86 (11%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI-IYRGNAPFGQ----QAETTLATNFFALV 74
D+ + S+ + G +D+LVNNAG + PF + E +A N +
Sbjct: 60 DITDRDSVDTAVAAAEQALGPVDVLVNNAGWDKFG---PFTKTEPPLWERLIAINLTGAL 116
Query: 75 TVCHMLFPLL--RPHARVVNVASQFG 98
+ H + P + R R+VN+AS
Sbjct: 117 HMHHAVLPGMVERGAGRIVNIASDAA 142
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 36.9 bits (86), Expect = 0.001
Identities = 14/31 (45%), Positives = 19/31 (61%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
DV +E + L D + G LD+LVNNAG+
Sbjct: 77 DVTSEAQVDALIDAAVERLGRLDVLVNNAGL 107
>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 = 36.6 bits (85), Expect = 0.002
Identities = 23/88 (26%), Positives = 35/88 (39%), Gaps = 16/88 (18%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTV- 76
+DV +E + L + Q G LDILVNNAG I+ E T A F + V
Sbjct: 70 VVDVRDEDQVRALVEATVDQFGRLDILVNNAGAIWLSL------VEDTPAKRFDLMQRVN 123
Query: 77 CHMLF-------PLLRPH--ARVVNVAS 95
+ P + ++N++
Sbjct: 124 LRGTYLLSQAALPHMVKAGQGHILNISP 151
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 36.6 bits (85), Expect = 0.002
Identities = 24/76 (31%), Positives = 34/76 (44%), Gaps = 4/76 (5%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTVCHM 79
D+ +E S+ L D + + GGLD LV NA G G + + N A +
Sbjct: 64 DLTDEESVAALMDTAREEFGGLDALVLNAS----GGMESGMDEDYAMRLNRDAQRNLARA 119
Query: 80 LFPLLRPHARVVNVAS 95
PL+ +RVV V S
Sbjct: 120 ALPLMPAGSRVVFVTS 135
>gnl|CDD|187618 cd05360, SDR_c3, classical (c) SDR, subgroup 3. These proteins are
members of the classical SDR family, with a canonical
active site triad (and also active site Asn) and a
typical Gly-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 233
Score = 36.2 bits (84), Expect = 0.002
Identities = 23/88 (26%), Positives = 34/88 (38%), Gaps = 14/88 (15%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-------TNFFA 72
DV + + + D + G +D VNNAG+ A FG+ + T N+
Sbjct: 57 DVADAAQVERAADTAVERFGRIDTWVNNAGV-----AVFGRFEDVTPEEFRRVFDVNYLG 111
Query: 73 LVTVCHMLFPLLRP--HARVVNVASQFG 98
V P LR ++NV S G
Sbjct: 112 HVYGTLAALPHLRRRGGGALINVGSLLG 139
>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 = 36.3 bits (84), Expect = 0.002
Identities = 17/66 (25%), Positives = 30/66 (45%), Gaps = 9/66 (13%)
Query: 38 HGGLDILVNNAGIIYRGNAPFG----QQAETTLATNFFALVTVCHMLFPLLRPH---ARV 90
G +D+LVNNA + PF + + + N A++ V ++ + +
Sbjct: 74 VGPVDLLVNNAAVAI--LQPFLEVTKEAFDRSFDVNVRAVIHVSQIVARGMIARGVPGSI 131
Query: 91 VNVASQ 96
VNV+SQ
Sbjct: 132 VNVSSQ 137
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 36.1 bits (84), Expect = 0.002
Identities = 28/82 (34%), Positives = 35/82 (42%), Gaps = 21/82 (25%)
Query: 27 IHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET-------TLATN----FFALVT 75
I L I+ +HG LDILVNNA N FG +T T+ N FF V
Sbjct: 72 IDALFAHIRERHGRLDILVNNAA----ANPYFGHILDTDLGAFQKTVDVNIRGYFFMSVE 127
Query: 76 VCHMLFPLLRPHAR--VVNVAS 95
L++ +VNVAS
Sbjct: 128 AG----KLMKEQGGGSIVNVAS 145
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 36.2 bits (84), Expect = 0.002
Identities = 18/63 (28%), Positives = 29/63 (46%), Gaps = 3/63 (4%)
Query: 36 TQHGGLDILVNNAGIIYRGNA---PFGQQAETTLATNFFALVTVCHMLFPLLRPHARVVN 92
+ G LDILVNNA Y + +Q + T TN ++ + P L+ + ++N
Sbjct: 120 RELGRLDILVNNAAFQYPQQSLEDITAEQLDKTFKTNIYSYFHMTKAALPHLKQGSAIIN 179
Query: 93 VAS 95
S
Sbjct: 180 TGS 182
>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 = 35.9 bits (83), Expect = 0.002
Identities = 19/64 (29%), Positives = 28/64 (43%), Gaps = 5/64 (7%)
Query: 6 KVCKN--NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE 63
V + ++ F DV E + D + G LDI+ NNAG++ AP E
Sbjct: 43 AVAAELGDPDISFVHCDVTVEADVRAAVDTAVARFGRLDIMFNNAGVL---GAPCYSILE 99
Query: 64 TTLA 67
T+L
Sbjct: 100 TSLE 103
>gnl|CDD|187631 cd05373, SDR_c10, classical (c) SDR, subgroup 10. This subgroup
resembles the classical SDRs, but has an incomplete
match to the canonical glycine rich NAD-binding motif
and lacks the typical active site tetrad (instead of
the critical active site Tyr, it has Phe, but contains
the nearby Lys). SDRs are a functionally diverse family
of oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 238
Score = 35.8 bits (83), Expect = 0.003
Identities = 15/46 (32%), Positives = 21/46 (45%), Gaps = 4/46 (8%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET 64
D +E + L D I+ + G L++LV NAG N F T
Sbjct: 56 TDARDEDEVIALFDLIEEEIGPLEVLVYNAG----ANVWFPILETT 97
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 36.0 bits (83), Expect = 0.003
Identities = 15/37 (40%), Positives = 21/37 (56%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA 56
D+ I L + + G +DILVNNAG+I R +A
Sbjct: 65 DLRKIDGIPALLERAVAEFGHIDILVNNAGLIRREDA 101
>gnl|CDD|213929 TIGR04316, dhbA_paeA, 2,3-dihydro-2,3-dihydroxybenzoate
dehydrogenase. Members of this family are
2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase (EC
1.3.1.28), the third enzyme in the biosynthesis of
2,3-dihydroxybenzoic acid (DHB) from chorismate. The
first two enzymes are isochorismate synthase (EC
5.4.4.2) and isochorismatase (EC 3.3.2.1). Synthesis is
often followed by adenylation by the enzyme DHBA-AMP
ligase (EC 2.7.7.58) to activate (DHB) for a
non-ribosomal peptide synthetase.
Length = 250
Score = 35.7 bits (83), Expect = 0.003
Identities = 21/91 (23%), Positives = 42/91 (46%), Gaps = 6/91 (6%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNA---PFGQQAETTL 66
++LDV + ++ ++ ++ ++G +D+LVN AGI+ G + + T
Sbjct: 45 YGYPFATYKLDVADSAAVDEVVQRLEREYGPIDVLVNVAGILRLGAIDSLSD-EDWQATF 103
Query: 67 ATNFFALVTVCHMLFPLLRPHAR--VVNVAS 95
A N F + V + P ++ +V V S
Sbjct: 104 AVNTFGVFNVSQAVSPRMKRRRSGAIVTVGS 134
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 35.5 bits (82), Expect = 0.004
Identities = 14/38 (36%), Positives = 19/38 (50%)
Query: 13 NVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
Q+DV + S + D + GG+D LVNNA I
Sbjct: 56 TAIAVQVDVSDPDSAKAMADATVSAFGGIDYLVNNAAI 93
>gnl|CDD|187627 cd05369, TER_DECR_SDR_a, Trans-2-enoyl-CoA reductase (TER) and
2,4-dienoyl-CoA reductase (DECR), atypical (a) SDR.
TTER is a peroxisomal protein with a proposed role in
fatty acid elongation. Fatty acid synthesis is known to
occur in the both endoplasmic reticulum and
mitochondria; peroxisomal TER has been proposed as an
additional fatty acid elongation system, it reduces the
double bond at C-2 as the last step of elongation. This
system resembles the mitochondrial system in that
acetyl-CoA is used as a carbon donor. TER may also
function in phytol metabolism, reducting phytenoyl-CoA
to phytanoyl-CoA in peroxisomes. DECR processes double
bonds in fatty acids to increase their utility in fatty
acid metabolism; it reduces 2,4-dienoyl-CoA to an
enoyl-CoA. DECR is active in mitochondria and
peroxisomes. This subgroup has the Gly-rich NAD-binding
motif of the classical SDR family, but does not display
strong identity to the canonical active site tetrad, and
lacks the characteristic Tyr at the usual position. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 249
Score = 35.6 bits (83), Expect = 0.004
Identities = 24/106 (22%), Positives = 42/106 (39%), Gaps = 26/106 (24%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN--APFGQQAETTLATNFFALV 74
Q DV + ++ D+ + G +DIL+NNA GN AP L+ N F V
Sbjct: 58 IQCDVRDPEAVEAAVDETLKEFGKIDILINNAA----GNFLAPAES-----LSPNGFKTV 108
Query: 75 T---------VCHMLFPLL---RPHARVVNVASQF---GMLYKVPS 105
+ L + ++N+++ + G ++V S
Sbjct: 109 IDIDLNGTFNTTKAVGKRLIEAKHGGSILNISATYAYTGSPFQVHS 154
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 35.4 bits (82), Expect = 0.004
Identities = 16/42 (38%), Positives = 22/42 (52%), Gaps = 4/42 (9%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN 55
V H LD+ + + +L + G +DILVNNAG I G
Sbjct: 59 VAVHALDLSSPEAREQLA----AEAGDIDILVNNAGAIPGGG 96
>gnl|CDD|187666 cd09806, type1_17beta-HSD-like_SDR_c, human estrogenic
17beta-hydroxysteroid dehydrogenase type 1 (type 1
17beta-HSD)-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. This classical SDR subgroup
includes human type 1 17beta-HSD, human retinol
dehydrogenase 8, zebrafish photoreceptor associated
retinol dehydrogenase type 2, and a chicken
ovary-specific 17beta-hydroxysteroid dehydrogenase. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 35.1 bits (81), Expect = 0.005
Identities = 22/88 (25%), Positives = 39/88 (44%), Gaps = 10/88 (11%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE----TTLATNFFAL 73
QLDV + S+ + + +H +D+LV NAG+ G P +E + N F
Sbjct: 59 QLDVCDSKSVAAAVERVTERH--VDVLVCNAGVGLLG--PLEALSEDAMASVFDVNVFGT 114
Query: 74 VTVCHMLFPLLRPH--ARVVNVASQFGM 99
V + P ++ R++ +S G+
Sbjct: 115 VRMLQAFLPDMKRRGSGRILVTSSVGGL 142
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 35.1 bits (81), Expect = 0.005
Identities = 14/35 (40%), Positives = 20/35 (57%)
Query: 16 FHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
F DV +E +++ L D +G +DI NNAGI
Sbjct: 55 FVPTDVTDEDAVNALFDTAAETYGSVDIAFNNAGI 89
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 35.3 bits (81), Expect = 0.005
Identities = 23/95 (24%), Positives = 41/95 (43%), Gaps = 10/95 (10%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG------NAPFGQQAETT 65
+ V+ ++ + + L + G+DILVNNAGI G + + E
Sbjct: 52 ERVKIFPANLSDRDEVKALGQKAEADLEGVDILVNNAGITKDGLFVRMSDEDWDSVLEVN 111
Query: 66 LATNFFALVTVCHMLFPLL-RPHARVVNVASQFGM 99
L F + H P++ R + R++N+ S G+
Sbjct: 112 LTATFRLTRELTH---PMMRRRYGRIINITSVVGV 143
>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 = 35.0 bits (81), Expect = 0.006
Identities = 22/91 (24%), Positives = 37/91 (40%), Gaps = 14/91 (15%)
Query: 14 VRFHQLDV----LNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-- 67
V LDV N+ I +L ++ GGLD+++ NAG + +G + +
Sbjct: 49 VEVEILDVTDEERNQLVIAELEAEL----GGLDLVIINAG-VGKGTSLGDLSFKAFRETI 103
Query: 68 -TNFFALVTVCHMLFPLLRPHAR--VVNVAS 95
TN + P R R +V ++S
Sbjct: 104 DTNLLGAAAILEAALPQFRAKGRGHLVLISS 134
>gnl|CDD|236229 PRK08303, PRK08303, short chain dehydrogenase; Provisional.
Length = 305
Score = 35.0 bits (81), Expect = 0.006
Identities = 28/96 (29%), Positives = 38/96 (39%), Gaps = 31/96 (32%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG------NAPFGQQ---------- 61
Q+D L + L + I + G LDILVN+ I+ G P +
Sbjct: 73 QVDHLVPEQVRALVERIDREQGRLDILVND---IWGGEKLFEWGKPVWEHSLDKGLRMLR 129
Query: 62 --AETTLATNFFALVTVCHMLFPLL--RPHARVVNV 93
+T L T+ FAL PLL RP VV +
Sbjct: 130 LAIDTHLITSHFAL--------PLLIRRPGGLVVEI 157
>gnl|CDD|187615 cd05357, PR_SDR_c, pteridine reductase (PR), classical (c) SDRs.
Pteridine reductases (PRs), members of the SDR family,
catalyzes the NAD-dependent reduction of folic acid,
dihydrofolate and related compounds. In Leishmania,
pteridine reductase (PTR1) acts to circumvent the
anti-protozoan drugs that attack dihydrofolate reductase
activity. Proteins in this subgroup have an N-terminal
NAD-binding motif and a YxxxK active site motif, but
have an Asp instead of the usual upstream catalytic Ser.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 234
Score = 34.6 bits (80), Expect = 0.007
Identities = 17/53 (32%), Positives = 22/53 (41%), Gaps = 2/53 (3%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNF 70
Q D+ + + L G D+LVNNA Y P GQ +E A F
Sbjct: 56 QADLSDFAACADLVAAAFRAFGRCDVLVNNASAFYPT--PLGQGSEDAWAELF 106
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 34.9 bits (80), Expect = 0.007
Identities = 14/34 (41%), Positives = 22/34 (64%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+DV NE +++ D + + G +DILV+NAGI
Sbjct: 61 VAMDVTNEDAVNAGIDKVAERFGSVDILVSNAGI 94
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 34.6 bits (80), Expect = 0.009
Identities = 14/41 (34%), Positives = 18/41 (43%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
V DV + S+ + G LD+LVNNAGI
Sbjct: 56 AGARVLAVPADVTDAASVAAAVAAAEEAFGPLDVLVNNAGI 96
>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 = 34.1 bits (79), Expect = 0.009
Identities = 18/59 (30%), Positives = 27/59 (45%), Gaps = 9/59 (15%)
Query: 15 RFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFAL 73
+Q+D+ +E SI L + + G D +V+ AG +A F AE T A L
Sbjct: 33 GDYQVDITDEASIKALFEKV----GHFDAIVSTAG-----DAEFAPLAELTDADFQRGL 82
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 34.1 bits (79), Expect = 0.010
Identities = 25/78 (32%), Positives = 36/78 (46%), Gaps = 9/78 (11%)
Query: 28 HKLHDDIQTQHGGLDILVNNAGIIYRGN-APFGQQAETT----LATNFFALVTVCHMLFP 82
+L D I+ Q G LD +++NAG++ G P QQ + N A + L P
Sbjct: 80 QQLADTIEEQFGRLDGVLHNAGLL--GELGPMEQQDPEVWQDVMQVNVNATFMLTQALLP 137
Query: 83 LLR--PHARVVNVASQFG 98
LL P A +V +S G
Sbjct: 138 LLLKSPAASLVFTSSSVG 155
>gnl|CDD|212495 cd09807, retinol-DH_like_SDR_c, retinol dehydrogenases
(retinol-DHs), classical (c) SDRs. Classical SDR-like
subgroup containing retinol-DHs and related proteins.
Retinol is processed by a medium chain alcohol
dehydrogenase followed by retinol-DHs. Proteins in this
subfamily share the glycine-rich NAD-binding motif of
the classical SDRs, have a partial match to the
canonical active site tetrad, but lack the typical
active site Ser. This subgroup includes the human
proteins: retinol dehydrogenase -12, -13 ,and -14. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 274
Score = 34.4 bits (79), Expect = 0.011
Identities = 25/90 (27%), Positives = 41/90 (45%), Gaps = 8/90 (8%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA---ETTLA 67
N V LD+ + SI + + LD+L+NNAG++ P+ + E
Sbjct: 51 NHEVIVRHLDLASLKSIRAFAAEFLAEEDRLDVLINNAGVM---RCPYSKTEDGFEMQFG 107
Query: 68 TNFFALVTVCHMLFPLLRPHA--RVVNVAS 95
N + ++L LL+ A R+VNV+S
Sbjct: 108 VNHLGHFLLTNLLLDLLKKSAPSRIVNVSS 137
>gnl|CDD|187617 cd05359, ChcA_like_SDR_c, 1-cyclohexenylcarbonyl_coenzyme
A_reductase (ChcA)_like, classical (c) SDRs. This
subgroup contains classical SDR proteins, including
members identified as 1-cyclohexenylcarbonyl coenzyme A
reductase. ChcA of Streptomyces collinus is implicated
in the final reduction step of shikimic acid to
ansatrienin. ChcA shows sequence similarity to the SDR
family of NAD-binding proteins, but it lacks the
conserved Tyr of the characteristic catalytic site. This
subgroup also contains the NADH-dependent
enoyl-[acyl-carrier-protein(ACP)] reductase FabL from
Bacillus subtilis. This enzyme participates in bacterial
fatty acid synthesis, in type II fatty-acid synthases
and catalyzes the last step in each elongation cycle.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 242
Score = 34.2 bits (79), Expect = 0.011
Identities = 20/84 (23%), Positives = 35/84 (41%), Gaps = 8/84 (9%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET----TLATNFFAL 73
+ DV + ++ ++ + G LD+LV+NA P + + TN AL
Sbjct: 54 RADVSQPQDVEEMFAAVKERFGRLDVLVSNAAAGAF--RPLSELTPAHWDAKMNTNLKAL 111
Query: 74 VTVCHMLFPLLRP--HARVVNVAS 95
V L+R R+V ++S
Sbjct: 112 VHCAQQAAKLMRERGGGRIVAISS 135
>gnl|CDD|181609 PRK09009, PRK09009, C factor cell-cell signaling protein;
Provisional.
Length = 235
Score = 34.3 bits (79), Expect = 0.011
Identities = 16/42 (38%), Positives = 26/42 (61%), Gaps = 4/42 (9%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY 52
+DNV++H LDV +E I +L + Q LD L+N G+++
Sbjct: 42 HDNVQWHALDVTDEAEIKQLSE--QFTQ--LDWLINCVGMLH 79
>gnl|CDD|187664 cd09763, DHRS1-like_SDR_c, human dehydrogenase/reductase (SDR
family) member 1 (DHRS1) -like, classical (c) SDRs.
This subgroup includes human DHRS1 and related proteins.
These are members of the classical SDR family, with a
canonical Gly-rich NAD-binding motif and the typical
YXXXK active site motif. However, the rest of the
catalytic tetrad is not strongly conserved. DHRS1 mRNA
has been detected in many tissues, liver, heart,
skeletal muscle, kidney and pancreas; a longer
transcript is predominantly expressed in the liver , a
shorter one in the heart. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 265
Score = 34.0 bits (78), Expect = 0.012
Identities = 23/95 (24%), Positives = 38/95 (40%), Gaps = 12/95 (12%)
Query: 20 DVLNETSIHKLHDDIQT-QHGGLDILVNNA-----GIIYRGNAPFGQQAETTLATNFFAL 73
D ++ + L + + Q G LDILVNNA I+ PF ++ T
Sbjct: 61 DHSDDDEVEALFERVAREQQGRLDILVNNAYAAVQLILVGVAKPFWEEPPTIWDDINNVG 120
Query: 74 VT---VC-HMLFPLLRPHAR--VVNVASQFGMLYK 102
+ C PL+ + +V ++S G+ Y
Sbjct: 121 LRAHYACSVYAAPLMVKAGKGLIVIISSTGGLEYL 155
>gnl|CDD|187635 cd08930, SDR_c8, classical (c) SDR, subgroup 8. This subgroup
has a fairly well conserved active site tetrad and
domain size of the classical SDRs, but has an atypical
NAD-binding motif ([ST]G[GA]XGXXG). SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 33.8 bits (78), Expect = 0.012
Identities = 15/52 (28%), Positives = 26/52 (50%), Gaps = 2/52 (3%)
Query: 5 KKVCKNNDNVRFH--QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG 54
K+ N R +LD+ ++ SI +L + + G +DIL+NNA +
Sbjct: 43 KEELTNLYKNRVIALELDITSKESIKELIESYLEKFGRIDILINNAYPSPKV 94
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 34.2 bits (79), Expect = 0.013
Identities = 22/92 (23%), Positives = 40/92 (43%), Gaps = 15/92 (16%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG-------QQAETTLATNFF 71
LD+ + ++ DI HG +D+++N AGI + +G +Q + N
Sbjct: 57 LDISDYDAVAAFAADIHAAHGSMDVVMNIAGI-----SAWGTVDRLTHEQWRRMVDVNLM 111
Query: 72 ALVTVCHMLFPLLRPHAR---VVNVASQFGML 100
+ V P + R +VNV+S G++
Sbjct: 112 GPIHVIETFVPPMVAAGRGGHLVNVSSAAGLV 143
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 33.8 bits (77), Expect = 0.014
Identities = 23/79 (29%), Positives = 33/79 (41%), Gaps = 3/79 (3%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAG---IIYRGNAPFGQQAETTLATNFFALVTV 76
D+ +E L + GGLDI+ AG I +Q + T A N FAL +
Sbjct: 108 DLSDEKFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADLTSEQFQKTFAINVFALFWL 167
Query: 77 CHMLFPLLRPHARVVNVAS 95
PLL A ++ +S
Sbjct: 168 TQEAIPLLPKGASIITTSS 186
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 33.9 bits (78), Expect = 0.015
Identities = 11/31 (35%), Positives = 19/31 (61%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
DV + + + ++ + G +DIL+NNAGI
Sbjct: 64 DVSDYEEVTAAIEQLKNELGSIDILINNAGI 94
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 33.6 bits (77), Expect = 0.017
Identities = 14/36 (38%), Positives = 21/36 (58%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYR 53
DV +E + +L + + + G LD LVNNAGI+
Sbjct: 58 AADVADEADVLRLFEAVDRELGRLDALVNNAGILEA 93
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 33.6 bits (77), Expect = 0.017
Identities = 29/101 (28%), Positives = 43/101 (42%), Gaps = 14/101 (13%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN------APFGQQAETTLATNFF 71
LDV + SI +T+ G +DILVNN+G+ A F +T FF
Sbjct: 64 SLDVTDYQSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPADFDFVFDTNTRGAFF 123
Query: 72 ALVTVC-HML-----FPLLRPHARVVNVASQFGMLYKVPSQ 106
V M+ +P R++N+AS G+ +V Q
Sbjct: 124 VAQEVAKRMIARAKGAGNTKPGGRIINIASVAGL--RVLPQ 162
>gnl|CDD|236342 PRK08862, PRK08862, short chain dehydrogenase; Provisional.
Length = 227
Score = 33.5 bits (77), Expect = 0.018
Identities = 16/37 (43%), Positives = 20/37 (54%), Gaps = 1/37 (2%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHG-GLDILVNN 47
DNV QL ++ SI L D I+ Q D+LVNN
Sbjct: 54 DNVYSFQLKDFSQESIRHLFDAIEQQFNRAPDVLVNN 90
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 33.6 bits (77), Expect = 0.020
Identities = 11/34 (32%), Positives = 20/34 (58%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYR 53
+V ++ + + I+ G +D+L+NNAGI R
Sbjct: 66 NVTHKQEVEAAIEHIEKDIGPIDVLINNAGIQRR 99
>gnl|CDD|187621 cd05363, SDH_SDR_c, Sorbitol dehydrogenase (SDH), classical (c)
SDR. This bacterial subgroup includes Rhodobacter
sphaeroides SDH, and other SDHs. SDH preferentially
interconverts D-sorbitol (D-glucitol) and D-fructose,
but also interconverts L-iditol/L-sorbose and
galactitol/D-tagatose. SDH is NAD-dependent and is a
dimeric member of the SDR family. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 254
Score = 33.4 bits (76), Expect = 0.023
Identities = 27/90 (30%), Positives = 42/90 (46%), Gaps = 15/90 (16%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTVCH 78
LDV ++ SI + + + G +DILVNNA + AP + FA + V
Sbjct: 56 LDVTDQASIDRCVAALVDRWGSIDILVNNAALF--DLAPIVDITRESY-DRLFA-INVSG 111
Query: 79 MLFPLLRPHAR----------VVNVASQFG 98
LF +++ AR ++N+ASQ G
Sbjct: 112 TLF-MMQAVARAMIAQGRGGKIINMASQAG 140
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 33.1 bits (76), Expect = 0.027
Identities = 11/38 (28%), Positives = 20/38 (52%)
Query: 11 NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNA 48
+ RF D+ ++ +I + + + G +DILVN A
Sbjct: 51 GERARFIATDITDDAAIERAVATVVARFGRVDILVNLA 88
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 33.0 bits (76), Expect = 0.028
Identities = 21/57 (36%), Positives = 24/57 (42%), Gaps = 11/57 (19%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET-------TLATN 69
DV +E L + GGLDI NNAG + G AE TLATN
Sbjct: 63 DVRDEAYAKALVALAVERFGGLDIAFNNAGTL----GEMGPVAEMSLEGWRETLATN 115
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 32.8 bits (75), Expect = 0.032
Identities = 11/12 (91%), Positives = 12/12 (100%)
Query: 39 GGLDILVNNAGI 50
GGLDI+VNNAGI
Sbjct: 88 GGLDIVVNNAGI 99
>gnl|CDD|168626 PRK06603, PRK06603, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 260
Score = 32.7 bits (74), Expect = 0.033
Identities = 22/68 (32%), Positives = 33/68 (48%), Gaps = 1/68 (1%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTVC 77
+LDV N SI L DDI+ + G D L++ + N G+ +T+L +L C
Sbjct: 64 ELDVTNPKSISNLFDDIKEKWGSFDFLLHGMAFADK-NELKGRYVDTSLENFHNSLHISC 122
Query: 78 HMLFPLLR 85
+ L L R
Sbjct: 123 YSLLELSR 130
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 32.6 bits (74), Expect = 0.036
Identities = 26/89 (29%), Positives = 36/89 (40%), Gaps = 5/89 (5%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQ----QAETTLA 67
+N F +DV +E + ++ Q G LD LV NA I N LA
Sbjct: 56 ENAWFIAMDVADEAQVAAGVAEVLGQFGRLDALVCNAAIADPHNTTLESLSLAHWNRVLA 115
Query: 68 TNFFALVTVCHMLFPLLRPH-ARVVNVAS 95
N + + P LR H +VN+AS
Sbjct: 116 VNLTGPMLLAKHCAPYLRAHNGAIVNLAS 144
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 32.8 bits (75), Expect = 0.036
Identities = 24/86 (27%), Positives = 31/86 (36%), Gaps = 16/86 (18%)
Query: 38 HGGLDILVNNAGIIYRGNAPFGQQAETTLAT-------NFFALVTVCHMLFP--LLRPHA 88
+D +VNN GI A + LA N A V V LR
Sbjct: 66 IHPVDAIVNNVGI-----ALPQPLGKIDLAALQDVYDLNVRAAVQVTQAFLEGMKLREQG 120
Query: 89 RVVNVASQ--FGMLYKVPSQELKQTL 112
R+VN+ S+ FG L + K L
Sbjct: 121 RIVNICSRAIFGALDRTSYSAAKSAL 146
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 32.5 bits (74), Expect = 0.040
Identities = 12/35 (34%), Positives = 18/35 (51%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY 52
Q D+ +E + + I L LVNNAGI++
Sbjct: 57 QADISDENQVVAMFTAIDQHDEPLAALVNNAGILF 91
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 32.5 bits (74), Expect = 0.042
Identities = 19/66 (28%), Positives = 29/66 (43%), Gaps = 5/66 (7%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET---TLATNFFALVTV 76
D+ +E + L D ++ G +DILVNNAG G PF N F+ +
Sbjct: 68 DITSEQELSALADFALSKLGKVDILVNNAG--GGGPKPFDMPMADFRRAYELNVFSFFHL 125
Query: 77 CHMLFP 82
++ P
Sbjct: 126 SQLVAP 131
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 32.5 bits (74), Expect = 0.044
Identities = 18/49 (36%), Positives = 25/49 (51%), Gaps = 3/49 (6%)
Query: 5 KKVCKN---NDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+ VC + NV F DV E + + D + G LDI+VNNAG+
Sbjct: 56 QNVCDSLGGEPNVCFFHCDVTVEDDVSRAVDFTVDKFGTLDIMVNNAGL 104
>gnl|CDD|187599 cd05340, Ycik_SDR_c, Escherichia coli K-12 YCIK-like, classical (c)
SDRs. Escherichia coli K-12 YCIK and related proteins
have a canonical classical SDR nucleotide-binding motif
and active site tetrad. They are predicted oxoacyl-(acyl
carrier protein/ACP) reductases. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 236
Score = 32.5 bits (74), Expect = 0.046
Identities = 23/88 (26%), Positives = 36/88 (40%), Gaps = 9/88 (10%)
Query: 19 LDVLNETS--IHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQA----ETTLATNFFA 72
LD+L TS +L I + LD +++NAG++ P +Q + N A
Sbjct: 61 LDLLTCTSENCQQLAQRIAVNYPRLDGVLHNAGLLG-DVCPLSEQNPQVWQDVXQVNVNA 119
Query: 73 LVTVCHMLFPLLR--PHARVVNVASQFG 98
+ L PLL +V +S G
Sbjct: 120 TFMLTQALLPLLLKSDAGSLVFTSSSVG 147
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 32.2 bits (74), Expect = 0.051
Identities = 12/34 (35%), Positives = 16/34 (47%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGII 51
DV +E + + GG+DI VNNA I
Sbjct: 68 VGDVRDEDQVAAAVAKAVERFGGIDICVNNASAI 101
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 32.0 bits (73), Expect = 0.057
Identities = 23/87 (26%), Positives = 33/87 (37%), Gaps = 11/87 (12%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET---TLATNFFALVT 75
LDV ++ +I G D LVN AGI + AE +A N
Sbjct: 60 LDVGDDAAI----RAALAAAGAFDGLVNCAGIA-SLESALDMTAEGFDRVMAVNARGAAL 114
Query: 76 VCHMLFPLLRPHAR---VVNVASQFGM 99
V + + R +VNV+SQ +
Sbjct: 115 VARHVARAMIAAGRGGSIVNVSSQAAL 141
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 32.0 bits (72), Expect = 0.061
Identities = 21/79 (26%), Positives = 38/79 (48%), Gaps = 10/79 (12%)
Query: 24 ETSIHKLHDDIQTQHGG--LDILVNNAGIIYRGNAPFGQQA-----ETTLATNFFALVTV 76
E L +++Q + G DIL+NNAGI G F ++ + ++ N A +
Sbjct: 70 EALYSSLDNELQNRTGSTKFDILINNAGI---GPGAFIEETTEQFFDRMVSVNAKAPFFI 126
Query: 77 CHMLFPLLRPHARVVNVAS 95
LR ++R++N++S
Sbjct: 127 IQQALSRLRDNSRIINISS 145
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 32.0 bits (73), Expect = 0.064
Identities = 17/50 (34%), Positives = 23/50 (46%), Gaps = 1/50 (2%)
Query: 15 RFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI-IYRGNAPFGQQAE 63
F DV + + L + +G LD NNAGI I +G G +AE
Sbjct: 59 LFVACDVTRDAEVKALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEGSEAE 108
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 31.8 bits (73), Expect = 0.065
Identities = 23/66 (34%), Positives = 31/66 (46%), Gaps = 7/66 (10%)
Query: 39 GGLDILVNNAGIIYRGNAPFG----QQAETTLATNFFALVTVCHMLFPLLR-PHARVVNV 93
G LD+LV+NAG+ G P + TL N A + +L P LR H VV +
Sbjct: 70 GRLDVLVHNAGVADLG--PVAESTVDEWRATLEVNVVAPAELTRLLLPALRAAHGHVVFI 127
Query: 94 ASQFGM 99
S G+
Sbjct: 128 NSGAGL 133
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 31.7 bits (72), Expect = 0.071
Identities = 18/69 (26%), Positives = 28/69 (40%), Gaps = 4/69 (5%)
Query: 14 VRFH--QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFF 71
V+ +LD+ + +L + + Q G ILVNNA Y N F L ++
Sbjct: 68 VKVSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNA--AYSTNNDFSNLTAEELDKHYM 125
Query: 72 ALVTVCHML 80
V +L
Sbjct: 126 VNVRATTLL 134
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 31.7 bits (72), Expect = 0.077
Identities = 13/38 (34%), Positives = 20/38 (52%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN 55
DV + S+ + + G +DILVNNAG+ G+
Sbjct: 60 VADVRDPASVAAAIKRAKEKEGRIDILVNNAGVCRLGS 97
>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 = 31.8 bits (72), Expect = 0.078
Identities = 12/30 (40%), Positives = 18/30 (60%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAG 49
+V +E + + +Q GG+ ILVNNAG
Sbjct: 56 NVTSEQDLEAVVKATVSQFGGITILVNNAG 85
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 31.6 bits (72), Expect = 0.087
Identities = 11/13 (84%), Positives = 13/13 (100%)
Query: 39 GGLDILVNNAGII 51
GGLD+LVNNAGI+
Sbjct: 91 GGLDVLVNNAGIL 103
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 31.6 bits (72), Expect = 0.090
Identities = 12/33 (36%), Positives = 19/33 (57%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+ DV E+ + L + G LD+++NNAGI
Sbjct: 63 KGDVTVESDVVNLIQTAVKEFGTLDVMINNAGI 95
>gnl|CDD|130890 TIGR01831, fabG_rel, 3-oxoacyl-(acyl-carrier-protein) reductase,
putative. This model represents a small, very well
conserved family of proteins closely related to the FabG
family, TIGR01830, and possibly equal in function. In
all completed genomes with a member of this family, a
FabG in TIGR01830 is also found [Fatty acid and
phospholipid metabolism, Biosynthesis].
Length = 239
Score = 31.4 bits (71), Expect = 0.090
Identities = 24/96 (25%), Positives = 40/96 (41%), Gaps = 5/96 (5%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAE--TTLA 67
N R Q DV + + L + +HG +V NAGI P + + +
Sbjct: 46 QGGNARLLQFDVADRVACRTLLEADIAEHGAYYGVVLNAGITRDAAFPALSEEDWDIVIH 105
Query: 68 TN---FFALVTVCHMLFPLLRPHARVVNVASQFGML 100
TN F+ ++ C M R R++ +AS G++
Sbjct: 106 TNLDGFYNVIHPCTMPMIRARQGGRIITLASVSGVM 141
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 31.5 bits (72), Expect = 0.094
Identities = 12/33 (36%), Positives = 19/33 (57%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAG 49
QLD+ + + D + + G +D+LVNNAG
Sbjct: 57 RQLDLSDLPEGAQALDKLIQRLGRIDVLVNNAG 89
>gnl|CDD|187595 cd05334, DHPR_SDR_c_like, dihydropteridine reductase (DHPR),
classical (c) SDRs. Dihydropteridine reductase is an
NAD-binding protein related to the SDRs. It converts
dihydrobiopterin into tetrahydrobiopterin, a cofactor
necessary in catecholamines synthesis. Dihydropteridine
reductase has the YXXXK of these tyrosine-dependent
oxidoreductases, but lacks the typical upstream Asn and
Ser catalytic residues. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 221
Score = 31.1 bits (71), Expect = 0.11
Identities = 15/88 (17%), Positives = 30/88 (34%), Gaps = 4/88 (4%)
Query: 13 NVRFHQLDVLNET-SIHKLHDDIQTQHGGLDILVNNAGIIYRGNA---PFGQQAETTLAT 68
+ LD + T ++ + G +D L+ AG G+A F + +
Sbjct: 40 DASIIVLDSDSFTEQAKQVVASVARLSGKVDALICVAGGWAGGSAKSKSFVKNWDLMWKQ 99
Query: 69 NFFALVTVCHMLFPLLRPHARVVNVASQ 96
N + H+ L +V ++
Sbjct: 100 NLWTSFIASHLATKHLLSGGLLVLTGAK 127
>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 = 31.0 bits (70), Expect = 0.13
Identities = 24/87 (27%), Positives = 37/87 (42%), Gaps = 10/87 (11%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET----TLATNFFALVT 75
DV + I L ++G +D+LVNNAG G + A+ + TN +
Sbjct: 60 DVRSVPEIEALVAAAVARYGPIDVLVNNAG--RSGGGATAELADELWLDVVETNLTGVFR 117
Query: 76 VCHMLFP----LLRPHARVVNVASQFG 98
V + L R R++N+AS G
Sbjct: 118 VTKEVLKAGGMLERGTGRIINIASTGG 144
>gnl|CDD|187607 cd05349, BKR_2_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP]reductase (BKR), subgroup 2, classical (c) SDR.
This subgroup includes Rhizobium sp. NGR234 FabG1. The
Escherichai coli K12 BKR, FabG, belongs to a different
subgroup. BKR catalyzes the NADPH-dependent reduction
of ACP in the first reductive step of de novo fatty
acid synthesis (FAS). FAS consists of four elongation
steps, which are repeated to extend the fatty acid
chain through the addition of two-carbo units from
malonyl acyl-carrier protein (ACP): condensation,
reduction, dehydration, and a final reduction. Type II
FAS, typical of plants and many bacteria, maintains
these activities on discrete polypeptides, while type I
FAS utilizes one or two multifunctional polypeptides.
BKR resembles enoyl reductase, which catalyzes the
second reduction step in FAS. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is
not generally found among SDRs.
Length = 246
Score = 30.9 bits (70), Expect = 0.13
Identities = 11/47 (23%), Positives = 23/47 (48%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAET 64
Q DV + + + ++ + G +D +VNNA I + + + +T
Sbjct: 53 QADVRDRDQVQAMIEEAKNHFGPVDTIVNNALIDFPFDPDQRKTFDT 99
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 31.1 bits (70), Expect = 0.14
Identities = 23/79 (29%), Positives = 38/79 (48%), Gaps = 14/79 (17%)
Query: 32 DDIQTQHGGLDILVNNAGI----IYRGNAPFGQQAETTLATNFFALVTVCHMLFPLL--R 85
D ++ + G +D+LVNNAGI ++R A + TN +L V + + R
Sbjct: 73 DKVKAEVGEIDVLVNNAGITRDVVFRKMTREDWTA--VIDTNLTSLFNVTKQVIDGMVER 130
Query: 86 PHARVVNVAS------QFG 98
R++N++S QFG
Sbjct: 131 GWGRIINISSVNGQKGQFG 149
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 31.1 bits (71), Expect = 0.15
Identities = 18/66 (27%), Positives = 30/66 (45%), Gaps = 11/66 (16%)
Query: 38 HGGLDILVNNAG--IIYRGNAPFGQ----QAETTLATNFFALVTVCHMLFPLLRPHAR-- 89
G +D+L+NN G I + PF + Q E + + F + C + P +
Sbjct: 82 FGRIDVLINNVGGTIWAK---PFEEYEEEQIEAEIRRSLFPTLWCCRAVLPHMLAQGGGA 138
Query: 90 VVNVAS 95
+VNV+S
Sbjct: 139 IVNVSS 144
>gnl|CDD|180983 PRK07453, PRK07453, protochlorophyllide oxidoreductase; Validated.
Length = 322
Score = 31.1 bits (71), Expect = 0.15
Identities = 23/87 (26%), Positives = 37/87 (42%), Gaps = 7/87 (8%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY-RGNAPF--GQQAETTLAT 68
D+ +D+ + S+ + DD + LD LV NA + P Q E ++AT
Sbjct: 55 DSYTIIHIDLGDLDSVRRFVDDFRALGKPLDALVCNAAVYMPLLKEPLRSPQGYELSMAT 114
Query: 69 NFFALVTVCHMLFPLL----RPHARVV 91
N +C++L L P R+V
Sbjct: 115 NHLGHFLLCNLLLEDLKKSPAPDPRLV 141
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 30.7 bits (70), Expect = 0.16
Identities = 20/64 (31%), Positives = 31/64 (48%), Gaps = 8/64 (12%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN-APFG----QQAETTLATNFFAL 73
LDV + + ++ + + + GGLD ++ NAGI G A G + T TNF A
Sbjct: 60 LDVNDHDQVFEVFAEFRDELGGLDRVIVNAGI---GKGARLGTGKFWANKATAETNFVAA 116
Query: 74 VTVC 77
+ C
Sbjct: 117 LAQC 120
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 30.7 bits (69), Expect = 0.19
Identities = 16/46 (34%), Positives = 24/46 (52%)
Query: 5 KKVCKNNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
++ K +V Q DV ++L ++ G +DILVNNAGI
Sbjct: 49 NELGKEGHDVYAVQADVSKVEDANRLVEEAVNHFGKVDILVNNAGI 94
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 30.6 bits (70), Expect = 0.20
Identities = 15/79 (18%), Positives = 34/79 (43%), Gaps = 6/79 (7%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGII--YRGNAPFGQQ----AETTLATNFFA 72
LDV ++ I +L + ++ G +D LV++ + R P+ L + ++
Sbjct: 51 LDVTSDEDIDELFEKVKEDGGKIDFLVHSIAMSPEIRKGKPYLDTSREGFLKALDISAYS 110
Query: 73 LVTVCHMLFPLLRPHARVV 91
+++ PL+ +V
Sbjct: 111 FISLAKAAKPLMNEGGSIV 129
>gnl|CDD|187611 cd05353, hydroxyacyl-CoA-like_DH_SDR_c-like, (3R)-hydroxyacyl-CoA
dehydrogenase-like, classical(c)-like SDRs. Beta
oxidation of fatty acids in eukaryotes occurs by a
four-reaction cycle, that may take place in
mitochondria or in peroxisomes. (3R)-hydroxyacyl-CoA
dehydrogenase is part of rat peroxisomal
multifunctional MFE-2, it is a member of the
NAD-dependent SDRs, but contains an additional small
C-terminal domain that completes the active site pocket
and participates in dimerization. The atypical,
additional C-terminal extension allows for more
extensive dimerization contact than other SDRs. MFE-2
catalyzes the second and third reactions of the
peroxisomal beta oxidation cycle. Proteins in this
subgroup have a typical catalytic triad, but have a His
in place of the usual upstream Asn. This subgroup also
contains members identified as 17-beta-hydroxysteroid
dehydrogenases, including human peroxisomal
17-beta-hydroxysteroid dehydrogenase type 4 (17beta-HSD
type 4, aka MFE-2, encoded by HSD17B4 gene) which is
involved in fatty acid beta-oxidation and steroid
metabolism. This subgroup also includes two SDR domains
of the Neurospora crassa and Saccharomyces cerevisiae
multifunctional beta-oxidation protein (MFP, aka Fox2).
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is
not generally found among SDRs.
Length = 250
Score = 30.0 bits (68), Expect = 0.27
Identities = 10/13 (76%), Positives = 12/13 (92%)
Query: 39 GGLDILVNNAGII 51
G +DILVNNAGI+
Sbjct: 87 GRVDILVNNAGIL 99
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 30.0 bits (68), Expect = 0.30
Identities = 12/35 (34%), Positives = 17/35 (48%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIY 52
D +E S+ L + G +D+LV NAGI
Sbjct: 59 GADATSEQSVLALSRGVDEIFGRVDLLVYNAGIAK 93
>gnl|CDD|187626 cd05368, DHRS6_like_SDR_c, human DHRS6-like, classical (c) SDRs.
Human DHRS6, and similar proteins. These proteins are
classical SDRs, with a canonical active site tetrad and
a close match to the typical Gly-rich NAD-binding
motif. Human DHRS6 is a cytosolic type 2
(R)-hydroxybutyrate dehydrogenase, which catalyses the
conversion of (R)-hydroxybutyrate to acetoacetate. Also
included in this subgroup is Escherichia coli UcpA
(upstream cys P). Classical SDRs are typically about
250 residues long, while extended SDRs are
approximately 350 residues. Sequence identity between
different SDR enzymes are typically in the 15-30%
range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction. Note: removed :
needed to make this chiodl smaller when drew final
trees: rmeoved text form description: Other proteins in
this subgroup include Thermoplasma acidophilum
aldohexose dehydrogenase, which has high dehydrogenase
activity against D-mannose, Bacillus subtilis BacC
involved in the biosynthesis of the dipeptide bacilysin
and its antibiotic moiety anticapsin, Sphingomonas
paucimobilis strain B90 LinC, involved in the
degradation of hexachlorocyclohexane isomers...... P).
Length = 241
Score = 29.7 bits (67), Expect = 0.35
Identities = 11/37 (29%), Positives = 20/37 (54%), Gaps = 4/37 (10%)
Query: 19 LDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN 55
LDV ++ + L + G +D+L N AG ++ G+
Sbjct: 53 LDVTDKEQVAALAKEE----GRIDVLFNCAGFVHHGS 85
>gnl|CDD|236124 PRK07889, PRK07889, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 256
Score = 29.9 bits (68), Expect = 0.36
Identities = 21/81 (25%), Positives = 39/81 (48%), Gaps = 8/81 (9%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRG-------NAPFGQQAETTLATNF 70
+LDV NE + L D ++ GLD +V++ G + +AP+ + T L +
Sbjct: 63 ELDVTNEEHLASLADRVREHVDGLDGVVHSIGFAPQSALGGNFLDAPW-EDVATALHVSA 121
Query: 71 FALVTVCHMLFPLLRPHARVV 91
++L ++ L PL+ +V
Sbjct: 122 YSLKSLAKALLPLMNEGGSIV 142
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 29.7 bits (67), Expect = 0.39
Identities = 13/46 (28%), Positives = 23/46 (50%), Gaps = 4/46 (8%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDI---QTQHGGLDI-LVNNAGII 51
N N+ FH LD+ + + ++I + I L+NNAG++
Sbjct: 46 YNSNLTFHSLDLQDVHELETNFNEILSSIQEDNVSSIHLINNAGMV 91
>gnl|CDD|187638 cd08933, RDH_SDR_c, retinal dehydrogenase-like, classical (c) SDR.
These classical SDRs includes members identified as
retinol dehydrogenases, which convert retinol to
retinal, a property that overlaps with 17betaHSD
activity. 17beta-dehydrogenases are a group of isozymes
that catalyze activation and inactivation of estrogen
and androgens, and include members of the short-chain
dehydrogenases/reductase family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 261
Score = 29.4 bits (66), Expect = 0.44
Identities = 26/90 (28%), Positives = 38/90 (42%), Gaps = 14/90 (15%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFALVTVCHM 79
DV E I L + G +D LVNNAG P Q + T A F L+ + +
Sbjct: 67 DVTKEEDIKTLISVTVERFGRIDCLVNNAGW-----HPPHQTTDETSAQEFRDLLNLNLI 121
Query: 80 LFPLLR----PHAR-----VVNVASQFGML 100
+ L PH R ++N++S G +
Sbjct: 122 SYFLASKYALPHLRKSQGNIINLSSLVGSI 151
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 29.5 bits (67), Expect = 0.46
Identities = 17/85 (20%), Positives = 27/85 (31%), Gaps = 12/85 (14%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA-------TNFFA 72
D+ +E L + G +D LVNNA + A+ A N
Sbjct: 62 DITDEDQCANLVALALERFGRVDALVNNAFRV----PSMKPLADADFAHWRAVIELNVLG 117
Query: 73 LVTVCHMLFPLLRP-HARVVNVASQ 96
+ + P L +V + S
Sbjct: 118 TLRLTQAFTPALAESGGSIVMINSM 142
>gnl|CDD|236057 PRK07578, PRK07578, short chain dehydrogenase; Provisional.
Length = 199
Score = 29.0 bits (66), Expect = 0.56
Identities = 15/57 (26%), Positives = 23/57 (40%), Gaps = 9/57 (15%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNFFAL 73
Q+D+ + SI L + + G +D +V+ A G F AE T L
Sbjct: 36 VQVDITDPASIRALFEKV----GKVDAVVSAA-----GKVHFAPLAEMTDEDFNVGL 83
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 29.3 bits (66), Expect = 0.60
Identities = 10/31 (32%), Positives = 17/31 (54%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNA 48
+ +V + I ++ I + G LD+ VNNA
Sbjct: 60 KANVGDVEKIKEMFAQIDEEFGRLDVFVNNA 90
>gnl|CDD|187641 cd08936, CR_SDR_c, Porcine peroxisomal carbonyl reductase like,
classical (c) SDR. This subgroup contains porcine
peroxisomal carbonyl reductase and similar proteins. The
porcine enzyme efficiently reduces retinals. This
subgroup also includes human dehydrogenase/reductase
(SDR family) member 4 (DHRS4), and human DHRS4L1. DHRS4
is a peroxisomal enzyme with 3beta-hydroxysteroid
dehydrogenase activity; it catalyzes the reduction of
3-keto-C19/C21-steroids into 3beta-hydroxysteroids more
efficiently than it does the retinal reduction. The
human DHRS4 gene cluster contains DHRS4, DHRS4L2 and
DHRS4L1. DHRS4L2 and DHRS4L1 are paralogs of DHRS4,
DHRS4L2 being the most recent member. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 29.0 bits (65), Expect = 0.60
Identities = 22/68 (32%), Positives = 31/68 (45%), Gaps = 13/68 (19%)
Query: 37 QHGGLDILVNNAGIIYRGNAPFGQQAETT-------LATNFFALVTVCHMLFPLL--RPH 87
HGG+DILV+NA + N FG ++T L N A + + P + R
Sbjct: 84 LHGGVDILVSNAAV----NPFFGNILDSTEEVWDKILDVNVKATALMTKAVVPEMEKRGG 139
Query: 88 ARVVNVAS 95
VV V+S
Sbjct: 140 GSVVIVSS 147
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 29.0 bits (65), Expect = 0.60
Identities = 12/36 (33%), Positives = 18/36 (50%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAG 49
VR+ DV +E + + D HG L +V+ AG
Sbjct: 60 VRYEPADVTDEDQVARAVDAATAWHGRLHGVVHCAG 95
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A;
Provisional.
Length = 256
Score = 29.2 bits (66), Expect = 0.66
Identities = 8/39 (20%), Positives = 19/39 (48%)
Query: 10 NNDNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNA 48
+ + +LD+ ++ S+ + ++G +D VN A
Sbjct: 53 KSKKLSLVELDITDQESLEEFLSKSAEKYGKIDGAVNCA 91
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 28.9 bits (65), Expect = 0.68
Identities = 12/31 (38%), Positives = 19/31 (61%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNA 48
Q+DV N + K+ + I + G +D L+NNA
Sbjct: 56 QMDVRNPEDVQKMVEQIDEKFGRIDALINNA 86
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 28.9 bits (65), Expect = 0.75
Identities = 9/33 (27%), Positives = 17/33 (51%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+ DV + + + G L+++VNNAG+
Sbjct: 57 KADVSDRDQVFAAVRQVVDTFGDLNVVVNNAGV 89
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 28.6 bits (64), Expect = 0.89
Identities = 24/104 (23%), Positives = 42/104 (40%), Gaps = 13/104 (12%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG-----QQAETTLATNFFALV 74
DV ++ + + + G L + VN AGI NA +Q +T + N +
Sbjct: 66 DVTSKADLRAAVARTEAELGALTLAVNAAGI---ANANPAEEMEEEQWQTVMDINLTGVF 122
Query: 75 TVCHMLFPLLRPHAR--VVNVASQFGMLYKVPSQELKQTLLNDS 116
C + + +VN+AS G+ + ++ L Q N S
Sbjct: 123 LSCQAEARAMLENGGGSIVNIASMSGI---IVNRGLLQAHYNAS 163
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 28.7 bits (65), Expect = 0.96
Identities = 12/28 (42%), Positives = 15/28 (53%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILV 45
DV N+ SI L I+ + G LD LV
Sbjct: 62 PCDVTNDESIDALFATIKKKWGKLDGLV 89
>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 = 28.6 bits (64), Expect = 1.0
Identities = 24/106 (22%), Positives = 38/106 (35%), Gaps = 15/106 (14%)
Query: 5 KKVCKNNDNVRFHQL--DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGN------- 55
+ + + + DV +E + D Q G +D NNAGI + N
Sbjct: 45 AALLEIAPDAEVLLIKADVSDEAQVEAYVDATVEQFGRIDGFFNNAGIEGKQNLTEDFGA 104
Query: 56 APFGQQAETTLATNFFALVTVCHMLFPLLRPH--ARVVNVASQFGM 99
F + L F+ L V ++R +VN AS G+
Sbjct: 105 DEFDKVVSINLRGVFYGLEKV----LKVMREQGSGMIVNTASVGGI 146
>gnl|CDD|187663 cd09762, HSDL2_SDR_c, human hydroxysteroid dehydrogenase-like
protein 2 (HSDL2), classical (c) SDRs. This subgroup
includes human HSDL2 and related protens. These are
members of the classical SDR family, with a canonical
Gly-rich NAD-binding motif and the typical YXXXK active
site motif. However, the rest of the catalytic tetrad is
not strongly conserved. HSDL2 may play a part in fatty
acid metabolism, as it is found in peroxisomes. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 28.6 bits (64), Expect = 1.1
Identities = 10/21 (47%), Positives = 12/21 (57%)
Query: 37 QHGGLDILVNNAGIIYRGNAP 57
+ GG+DILVNNA I
Sbjct: 84 KFGGIDILVNNASAISLTGTL 104
>gnl|CDD|184847 PRK14843, PRK14843, dihydrolipoamide acetyltransferase;
Provisional.
Length = 347
Score = 28.3 bits (63), Expect = 1.1
Identities = 12/26 (46%), Positives = 16/26 (61%)
Query: 108 LKQTLLNDSLTEDQLVGMMHDYVKLA 133
+K +N SLTED + H+YV LA
Sbjct: 189 MKHPYINASLTEDGKTIITHNYVNLA 214
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 28.2 bits (63), Expect = 1.2
Identities = 25/95 (26%), Positives = 36/95 (37%), Gaps = 23/95 (24%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLAT------NFFAL 73
D+ + + L G LDI+VNN G G L+T + F
Sbjct: 67 DLAHPEATAGLAGQAVEAFGRLDIVVNNVG---------GTMPNPLLSTSTKDLADAFTF 117
Query: 74 -VTVCHML----FPLLRPHA---RVVNVASQFGML 100
V H L PL+ H+ V+N++S G L
Sbjct: 118 NVATAHALTVAAVPLMLEHSGGGSVINISSTMGRL 152
>gnl|CDD|187670 cd09810, LPOR_like_SDR_c_like, light-dependent protochlorophyllide
reductase (LPOR)-like, classical (c)-like SDRs.
Classical SDR-like subgroup containing LPOR and related
proteins. Protochlorophyllide (Pchlide) reductases act
in chlorophyll biosynthesis. There are distinct enzymes
that catalyze Pchlide reduction in light or dark
conditions. Light-dependent reduction is via an
NADP-dependent SDR, LPOR. Proteins in this subfamily
share the glycine-rich NAD-binding motif of the
classical SDRs, have a partial match to the canonical
active site tetrad, but lack the typical active site
Ser. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 311
Score = 28.3 bits (63), Expect = 1.4
Identities = 24/94 (25%), Positives = 36/94 (38%), Gaps = 13/94 (13%)
Query: 12 DNVRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPF----GQQAETTLA 67
D+ D+ + S+ + D+ + LD LV NA +Y A E T+
Sbjct: 51 DSYSVLHCDLASLDSVRQFVDNFRRTGRPLDALVCNAA-VYLPTAKEPRFTADGFELTVG 109
Query: 68 TN---FFALVTVCHMLFPLLR---PHARVVNVAS 95
N F L + +L L R R+V V S
Sbjct: 110 VNHLGHFLLTNL--LLEDLQRSENASPRIVIVGS 141
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 27.6 bits (62), Expect = 1.9
Identities = 8/12 (66%), Positives = 8/12 (66%)
Query: 39 GGLDILVNNAGI 50
G LD V NAGI
Sbjct: 79 GKLDCFVGNAGI 90
>gnl|CDD|187630 cd05372, ENR_SDR, Enoyl acyl carrier protein (ACP) reductase (ENR),
divergent SDR. This bacterial subgroup of ENRs includes
Escherichia coli ENR. ENR catalyzes the
NAD(P)H-dependent reduction of enoyl-ACP in the last
step of fatty acid biosynthesis. De novo fatty acid
biosynthesis is catalyzed by the fatty acid synthetase
complex, through the serial addition of 2-carbon
subunits. In bacteria and plants,ENR catalyzes one of
six synthetic steps in this process. Oilseed rape ENR,
and also apparently the NADH-specific form of
Escherichia coli ENR, is tetrameric. Although similar
to the classical SDRs, this group does not have the
canonical catalytic tetrad, nor does it have the typical
Gly-rich NAD-binding pattern. Such so-called divergent
SDRs have a GXXXXXSXA NAD-binding motif and a YXXMXXXK
(or YXXXMXXXK) active site motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 27.5 bits (62), Expect = 2.0
Identities = 21/85 (24%), Positives = 35/85 (41%), Gaps = 16/85 (18%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATNF------- 70
DV N+ I +L +++ G LD LV+ I AP Q L T+
Sbjct: 58 PCDVSNDEEIKELFAEVKKDWGKLDGLVH--SI---AFAPKVQLKGPFLDTSRKGFLKAL 112
Query: 71 ----FALVTVCHMLFPLLRPHARVV 91
++LV++ P++ P +V
Sbjct: 113 DISAYSLVSLAKAALPIMNPGGSIV 137
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 27.7 bits (62), Expect = 2.0
Identities = 10/18 (55%), Positives = 11/18 (61%)
Query: 38 HGGLDILVNNAGIIYRGN 55
G LD LVN AG+ RG
Sbjct: 82 FGRLDALVNAAGLTDRGT 99
>gnl|CDD|187669 cd09809, human_WWOX_like_SDR_c-like, human WWOX (WW
domain-containing oxidoreductase)-like, classical
(c)-like SDRs. Classical-like SDR domain of human WWOX
and related proteins. Proteins in this subfamily share
the glycine-rich NAD-binding motif of the classical
SDRs, have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 284
Score = 27.6 bits (61), Expect = 2.3
Identities = 22/86 (25%), Positives = 37/86 (43%), Gaps = 4/86 (4%)
Query: 14 VRFHQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLATN---F 70
V LD+ + S+ + + + ++ L +LV NA + ETT N
Sbjct: 54 VEAMTLDLASLRSVQRFAEAFKAKNSPLHVLVCNAAVFALPWTLTEDGLETTFQVNHLGH 113
Query: 71 FALVTVCHMLFPLLRPHARVVNVASQ 96
F LV + + P ARV+ V+S+
Sbjct: 114 FYLVQLLEDVLRRSAP-ARVIVVSSE 138
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 27.6 bits (62), Expect = 2.4
Identities = 17/74 (22%), Positives = 24/74 (32%), Gaps = 24/74 (32%)
Query: 39 GGLDILVNNAGIIYRGNAPFGQQAETTLA-------TNFF-----ALVTVCHMLFPLLRP 86
G +D VNNA + FG + T + L + HM RP
Sbjct: 84 GPIDTWVNNAMV-----TVFGPFEDVTPEEFRRVTEVTYLGVVHGTLAALRHM-----RP 133
Query: 87 HAR--VVNVASQFG 98
R ++ V S
Sbjct: 134 RDRGAIIQVGSALA 147
>gnl|CDD|234422 TIGR03971, SDR_subfam_1, oxidoreductase, SDR family. Members of
this protein subfamily are putative oxidoreductases
belonging to the larger SDR family. Members of the
present subfamily may occur several to a genome and are
largely restricted to genomes that contain members of
families TIGR03962, TIGR03967, and TIGR03969. Many
members have been annotated by homology as carveol
dehydrogenases.
Length = 265
Score = 27.5 bits (61), Expect = 2.4
Identities = 8/15 (53%), Positives = 12/15 (80%)
Query: 37 QHGGLDILVNNAGII 51
Q G LD++V NAG++
Sbjct: 90 QFGRLDVVVANAGVL 104
>gnl|CDD|182593 PRK10621, PRK10621, hypothetical protein; Provisional.
Length = 266
Score = 27.4 bits (61), Expect = 2.6
Identities = 14/36 (38%), Positives = 19/36 (52%), Gaps = 2/36 (5%)
Query: 67 ATNFFAL--VTVCHMLFPLLRPHARVVNVASQFGML 100
A +F+AL VT+C HA+V+N S G L
Sbjct: 160 AGSFYALAFVTLCGFNLAKATAHAKVLNATSNIGGL 195
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 27.3 bits (60), Expect = 2.6
Identities = 13/32 (40%), Positives = 18/32 (56%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGII 51
DV + + D + + GG+DI V NAGII
Sbjct: 66 DVSQHQQVTSMLDQVTAELGGIDIAVCNAGII 97
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 27.2 bits (61), Expect = 3.1
Identities = 12/40 (30%), Positives = 21/40 (52%), Gaps = 5/40 (12%)
Query: 20 DVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFG 59
DV + ++ ++ + GG+D++V NAGI A G
Sbjct: 65 DVTDLAAMQAAAEEAVERFGGIDVVVANAGI-----ASGG 99
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 27.0 bits (60), Expect = 3.1
Identities = 14/50 (28%), Positives = 22/50 (44%), Gaps = 5/50 (10%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA 67
Q D+ ++ KL DD + G DI +N G + + P E + A
Sbjct: 67 QADLTTAAAVEKLFDDAKAAFGRPDIAINTVGKVLK--KPI---VEISEA 111
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 27.0 bits (60), Expect = 3.6
Identities = 13/49 (26%), Positives = 22/49 (44%), Gaps = 5/49 (10%)
Query: 17 HQLDVLNETSIHKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETT 65
LDV + S+ + G +++LV+ AG Y FG+ E +
Sbjct: 64 FPLDVTDPDSVKSFVAQAEEALGEIEVLVSGAGDTY-----FGKLHEIS 107
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 26.9 bits (60), Expect = 3.7
Identities = 10/33 (30%), Positives = 17/33 (51%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
+ DV + + L D + G + +L NNAG+
Sbjct: 61 RTDVSDAAQVEALADAALERFGAVHLLFNNAGV 93
>gnl|CDD|180949 PRK07370, PRK07370, enoyl-(acyl carrier protein) reductase;
Validated.
Length = 258
Score = 26.6 bits (59), Expect = 4.1
Identities = 11/30 (36%), Positives = 17/30 (56%)
Query: 16 FHQLDVLNETSIHKLHDDIQTQHGGLDILV 45
F DV ++ I + + I+ + G LDILV
Sbjct: 63 FLPCDVQDDAQIEETFETIKQKWGKLDILV 92
>gnl|CDD|132110 TIGR03066, Gem_osc_para_1, Gemmata obscuriglobus paralogous family
TIGR03066. This model represents an uncharacterized
paralogous family in Gemmata obscuriglobus UQM 2246, a
member of the Planctomycetes. This family shows sequence
similarity to TIGR03067, which is also found in Gemmata
obscuriglobus as well as in a few other species
[Hypothetical proteins, Conserved].
Length = 111
Score = 25.8 bits (57), Expect = 4.9
Identities = 12/27 (44%), Positives = 16/27 (59%)
Query: 102 KVPSQELKQTLLNDSLTEDQLVGMMHD 128
K +E K+TL LT+D+LVG D
Sbjct: 75 KAGGKEKKETLTVKKLTDDELVGKDPD 101
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 26.3 bits (58), Expect = 5.4
Identities = 12/20 (60%), Positives = 14/20 (70%)
Query: 37 QHGGLDILVNNAGIIYRGNA 56
+ G LDILV NAGI G+A
Sbjct: 72 KSGALDILVVNAGIAVFGDA 91
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 26.1 bits (58), Expect = 5.8
Identities = 24/101 (23%), Positives = 38/101 (37%), Gaps = 23/101 (22%)
Query: 14 VRFHQLDVLNETSI-HKLHDDIQTQHGGLDILVNNAGIIYRGNAPFGQQAETTLA----- 67
+R +LD+ + D+ D+L+NNAGI G A G + +
Sbjct: 53 LRVEKLDLTDAIDRAQAAEWDV-------DVLLNNAGI---GEA--GAVVDIPVELVREL 100
Query: 68 --TNFFALVTVCHMLFP--LLRPHARVVNVASQFGMLYKVP 104
TN F + + + R +VV +S G L P
Sbjct: 101 FETNVFGPLELTQGFVRKMVARGKGKVVFTSSMAG-LITGP 140
>gnl|CDD|238582 cd01177, IPT_NFkappaB, IPT domain of the transcription factor
NFkappaB and related transcription factors. NFkappaB is
considered a central regulator of stress responses,
activated by different stressful conditions, including
physical stress, oxidative stress, and exposure to
certain chemicals. NFkappaB blocking cell apoptosis in
several cell types, gives it an important role in cell
proliferation and differentiation.
Length = 102
Score = 25.4 bits (56), Expect = 6.3
Identities = 8/17 (47%), Positives = 10/17 (58%)
Query: 4 CKKVCKNNDNVRFHQLD 20
C KV K + VRF + D
Sbjct: 23 CDKVQKEDIQVRFFEED 39
>gnl|CDD|187583 cd05322, SDH_SDR_c_like, Sorbitol 6-phosphate dehydrogenase
(SDH), classical (c) SDRs. Sorbitol 6-phosphate
dehydrogenase (SDH, aka glucitol 6-phosphate
dehydrogenase) catalyzes the NAD-dependent
interconversion of D-fructose 6-phosphate to D-sorbitol
6-phosphate. SDH is a member of the classical SDRs,
with the characteristic catalytic tetrad, but without a
complete match to the typical NAD-binding motif. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 25.9 bits (57), Expect = 6.8
Identities = 11/33 (33%), Positives = 16/33 (48%)
Query: 18 QLDVLNETSIHKLHDDIQTQHGGLDILVNNAGI 50
D NE S+ L + +D+LV +AGI
Sbjct: 58 GADATNEQSVIALSKGVDEIFKRVDLLVYSAGI 90
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
0.324 0.137 0.411
Gapped
Lambda K H
0.267 0.0759 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,534,099
Number of extensions: 555029
Number of successful extensions: 902
Number of sequences better than 10.0: 1
Number of HSP's gapped: 855
Number of HSP's successfully gapped: 242
Length of query: 136
Length of database: 10,937,602
Length adjustment: 87
Effective length of query: 49
Effective length of database: 7,078,804
Effective search space: 346861396
Effective search space used: 346861396
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.0 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.6 bits)
S2: 54 (24.5 bits)