RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy16528
(82 letters)
>gnl|CDD|187547 cd05236, FAR-N_SDR_e, fatty acyl CoA reductases (FARs), extended
(e) SDRs. SDRs are Rossmann-fold NAD(P)H-binding
proteins, many of which may function as fatty acyl CoA
reductases (FAR), acting on medium and long chain fatty
acids, and have been reported to be involved in diverse
processes such as biosynthesis of insect pheromones,
plant cuticular wax production, and mammalian wax
biosynthesis. In Arabidopsis thaliana, proteins with
this particular architecture have also been identified
as the MALE STERILITY 2 (MS2) gene product, which is
implicated in male gametogenesis. Mutations in MS2
inhibit the synthesis of exine (sporopollenin),
rendering plants unable to reduce pollen wall fatty
acids to corresponding alcohols. This N-terminal domain
shares the catalytic triad (but not the upstream Asn)
and characteristic NADP-binding motif of the extended
SDR family. Extended SDRs are distinct from classical
SDRs. In addition to the Rossmann fold (alpha/beta
folding pattern with a central beta-sheet) core region
typical of all SDRs, extended SDRs have a less
conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 320
Score = 89.7 bits (223), Expect = 2e-23
Identities = 32/54 (59%), Positives = 39/54 (72%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINAPL 80
+SV +TG TGF+GKVL+EKLLRSCP I IYLL+R K GQ RL E++ L
Sbjct: 1 KSVLITGATGFLGKVLLEKLLRSCPDIGKIYLLIRGKSGQSAEERLRELLKDKL 54
>gnl|CDD|219687 pfam07993, NAD_binding_4, Male sterility protein. This family
represents the C-terminal region of the male sterility
protein in a number of arabidopsis and drosophila. A
sequence-related jojoba acyl CoA reductase is also
included.
Length = 245
Score = 71.5 bits (176), Expect = 6e-17
Identities = 25/44 (56%), Positives = 32/44 (72%), Gaps = 1/44 (2%)
Query: 31 VTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAE 74
+TG TGF+GKVL+EKLLRS P +K IY L+R K G+ RL +
Sbjct: 1 LTGATGFLGKVLLEKLLRSTPEVK-IYCLVRAKDGESALERLRQ 43
>gnl|CDD|215279 PLN02503, PLN02503, fatty acyl-CoA reductase 2.
Length = 605
Score = 62.2 bits (151), Expect = 4e-13
Identities = 26/62 (41%), Positives = 42/62 (67%), Gaps = 1/62 (1%)
Query: 20 VSEFYQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLA-EIINA 78
++EF + ++ +TG TGF+ KVL+EK+LR+ P + IYLL++ K + RL E+I+A
Sbjct: 113 IAEFLRGKNFLITGATGFLAKVLIEKILRTNPDVGKIYLLIKAKDKEAAIERLKNEVIDA 172
Query: 79 PL 80
L
Sbjct: 173 EL 174
>gnl|CDD|215538 PLN02996, PLN02996, fatty acyl-CoA reductase.
Length = 491
Score = 58.2 bits (141), Expect = 9e-12
Identities = 20/42 (47%), Positives = 31/42 (73%)
Query: 20 VSEFYQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR 61
+F +N+++ VTG TGF+ K+ VEK+LR P +K +YLL+R
Sbjct: 5 CVQFLENKTILVTGATGFLAKIFVEKILRVQPNVKKLYLLLR 46
>gnl|CDD|187573 cd05263, MupV_like_SDR_e, Pseudomonas fluorescens MupV-like,
extended (e) SDRs. This subgroup of extended SDR
family domains have the characteristic active site
tetrad and a well-conserved NAD(P)-binding motif. This
subgroup is not well characterized, its members are
annotated as having a variety of putative functions.
One characterized member is Pseudomonas fluorescens
MupV a protein involved in the biosynthesis of
Mupirocin, a polyketide-derived antibiotic. Extended
SDRs are distinct from classical SDRs. In addition to
the Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 293
Score = 44.7 bits (106), Expect = 5e-07
Identities = 18/46 (39%), Positives = 30/46 (65%), Gaps = 3/46 (6%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAE 74
VFVTGGTGF+G+ LV++LL + + +L+R + + + R+ E
Sbjct: 1 VFVTGGTGFLGRHLVKRLLEN---GFKVLVLVRSESLGEAHERIEE 43
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 43.8 bits (104), Expect = 1e-06
Identities = 17/47 (36%), Positives = 26/47 (55%), Gaps = 5/47 (10%)
Query: 30 FVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEII 76
FVTGGTGF+G+ LV +LL +++L+R + RL +
Sbjct: 4 FVTGGTGFIGRRLVSRLLDRRREAT-VHVLVRRQS----LSRLEALA 45
>gnl|CDD|187546 cd05235, SDR_e1, extended (e) SDRs, subgroup 1. This family
consists of an SDR module of multidomain proteins
identified as putative polyketide sythases fatty acid
synthases (FAS), and nonribosomal peptide synthases,
among others. However, unlike the usual ketoreductase
modules of FAS and polyketide synthase, these domains
are related to the extended SDRs, and have canonical
NAD(P)-binding motifs and an active site tetrad.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 290
Score = 40.3 bits (95), Expect = 2e-05
Identities = 17/51 (33%), Positives = 28/51 (54%), Gaps = 1/51 (1%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINA 78
+V +TG TGF+G L+ +LL+ + IY L+R K + RL + +
Sbjct: 1 TVLLTGATGFLGAYLLRELLK-RKNVSKIYCLVRAKDEEAALERLIDNLKE 50
>gnl|CDD|225857 COG3320, COG3320, Putative dehydrogenase domain of
multifunctional non-ribosomal peptide synthetases and
related enzymes [Secondary metabolites biosynthesis,
transport, and catabolism].
Length = 382
Score = 39.7 bits (93), Expect = 3e-05
Identities = 15/46 (32%), Positives = 24/46 (52%), Gaps = 2/46 (4%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRL 72
R+V +TG TGF+G L+ +LL + L+R + + RL
Sbjct: 1 RNVLLTGATGFLGAYLLLELLDRSDA--KVICLVRAQSDEAALARL 44
>gnl|CDD|187539 cd05228, AR_FR_like_1_SDR_e, uncharacterized subgroup of aldehyde
reductase and flavonoid reductase related proteins,
extended (e) SDRs. This subgroup contains proteins of
unknown function related to aldehyde reductase and
flavonoid reductase of the extended SDR-type. Aldehyde
reductase I (aka carbonyl reductase) is an NADP-binding
SDR; it has an NADP-binding motif consensus that is
slightly different from the canonical SDR form and
lacks the Asn of the extended SDR active site tetrad.
Aldehyde reductase I catalyzes the NADP-dependent
reduction of ethyl 4-chloro-3-oxobutanoate to ethyl
(R)-4-chloro-3-hydroxybutanoate. The related flavonoid
reductases act in the NADP-dependent reduction of
flavonoids, ketone-containing plant secondary
metabolites. Extended SDRs are distinct from classical
SDRs. In addition to the Rossmann fold (alpha/beta
folding pattern with a central beta-sheet) core region
typical of all SDRs, extended SDRs have a less
conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 318
Score = 38.8 bits (91), Expect = 7e-05
Identities = 15/54 (27%), Positives = 23/54 (42%), Gaps = 9/54 (16%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINAPLDW 82
+ VTG TGF+G LV LL G + + L+R + P++
Sbjct: 1 ILVTGATGFLGSNLVRALLAQ--GYR-VRALVRSGS------DAVLLDGLPVEV 45
>gnl|CDD|233557 TIGR01746, Thioester-redct, thioester reductase domain. This
model includes the terminal domain from the fungal
alpha aminoadipate reductase enzyme (also known as
aminoadipate semialdehyde dehydrogenase) which is
involved in the biosynthesis of lysine , as well as the
reductase-containing component of the myxochelin
biosynthetic gene cluster, MxcG. The mechanism of
reduction involves activation of the substrate by
adenylation and transfer to a covalently-linked
pantetheine cofactor as a thioester. This thioester is
then reduced to give an aldehyde (thus releasing the
product) and a regenerated pantetheine thiol. (In
myxochelin biosynthesis this aldehyde is further
reduced to an alcohol or converted to an amine by an
aminotransferase.) This is a fundamentally different
reaction than beta-ketoreductase domains of polyketide
synthases which act at a carbonyl two carbons removed
from the thioester and forms an alcohol as a product.
This domain is invariably found at the C-terminus of
the proteins which contain it (presumably because it
results in the release of the product). The majority of
hits to this model are non-ribosomal peptide
synthetases in which this domain is similarly located
proximal to a thiolation domain (pfam00550). In some
cases this domain is found at the end of a polyketide
synthetase enzyme, but is unlike ketoreductase domains
which are found before the thiolase domains. Exceptions
to this observed relationship with the thiolase domain
include three proteins which consist of stand-alone
reductase domains (GP|466833 from M. leprae, GP|435954
from Anabaena and OMNI|NTL02SC1199 from Strep.
coelicolor) and one protein (OMNI|NTL01NS2636 from
Nostoc) which contains N-terminal homology with a small
group of hypothetical proteins but no evidence of a
thiolation domain next to the putative reductase
domain. Below the noise cutoff to this model are
proteins containing more distantly related
ketoreductase and dehydratase/epimerase domains. It has
been suggested that a NADP-binding motif can be found
in the N-terminal portion of this domain that may form
a Rossman-type fold.
Length = 367
Score = 37.8 bits (88), Expect = 1e-04
Identities = 16/43 (37%), Positives = 25/43 (58%), Gaps = 4/43 (9%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR---PKHGQD 67
+V +TG TGF+G L+E+LLR K + L+R +H +
Sbjct: 1 TVLLTGATGFLGAYLLEELLRRSTQAK-VICLVRAASEEHAME 42
>gnl|CDD|187572 cd05262, SDR_a7, atypical (a) SDRs, subgroup 7. This subgroup
contains atypical SDRs of unknown function. Members of
this subgroup have a glycine-rich NAD(P)-binding motif
consensus that matches the extended SDRs, TGXXGXXG, but
lacks the characteristic active site residues of the
SDRs. This subgroup has basic residues (HXXXR) in place
of the active site motif YXXXK, these may have a
catalytic role. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 291
Score = 36.9 bits (86), Expect = 3e-04
Identities = 11/19 (57%), Positives = 15/19 (78%)
Query: 29 VFVTGGTGFMGKVLVEKLL 47
VFVTG TGF+G +V +L+
Sbjct: 3 VFVTGATGFIGSAVVRELV 21
>gnl|CDD|234212 TIGR03443, alpha_am_amid, L-aminoadipate-semialdehyde dehydrogenase.
Members of this protein family are
L-aminoadipate-semialdehyde dehydrogenase (EC 1.2.1.31),
product of the LYS2 gene. It is also called
alpha-aminoadipate reductase. In fungi, lysine is
synthesized via aminoadipate. Currently, all members of
this family are fungal.
Length = 1389
Score = 37.0 bits (86), Expect = 3e-04
Identities = 19/64 (29%), Positives = 32/64 (50%), Gaps = 5/64 (7%)
Query: 4 NNVPTISSNMPA--PSTPVSEFYQNRSVFVTGGTGFMGKVLVEKLL--RSCPGIKNIYLL 59
+ T+ ++P PS + +VF+TG TGF+G ++ LL RS K ++
Sbjct: 947 KDAKTLVDSLPKSYPSRKELDASTPITVFLTGATGFLGSFILRDLLTRRSNSNFK-VFAH 1005
Query: 60 MRPK 63
+R K
Sbjct: 1006 VRAK 1009
>gnl|CDD|223528 COG0451, WcaG, Nucleoside-diphosphate-sugar epimerases [Cell
envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 314
Score = 36.8 bits (85), Expect = 3e-04
Identities = 18/53 (33%), Positives = 26/53 (49%), Gaps = 3/53 (5%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINAPLD 81
+ VTGG GF+G LVE+LL + ++ L R + G D E + L
Sbjct: 3 ILVTGGAGFIGSHLVERLLAAGH---DVRGLDRLRDGLDPLLSGVEFVVLDLT 52
>gnl|CDD|212494 cd08946, SDR_e, extended (e) SDRs. Extended SDRs are distinct
from classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 200
Score = 36.5 bits (85), Expect = 4e-04
Identities = 11/20 (55%), Positives = 14/20 (70%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ VTGG GF+G LV +LL
Sbjct: 1 ILVTGGAGFIGSHLVRRLLE 20
>gnl|CDD|224011 COG1086, COG1086, Predicted nucleoside-diphosphate sugar epimerases
[Cell envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 588
Score = 36.1 bits (84), Expect = 6e-04
Identities = 16/62 (25%), Positives = 26/62 (41%), Gaps = 3/62 (4%)
Query: 19 PVSEFYQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQ-DINGRLAEIIN 77
+ ++V VTGG G +G L ++L+ K I L R ++ I+ L E
Sbjct: 243 LIGAMLTGKTVLVTGGGGSIGSELCRQILKF--NPKEIILFSRDEYKLYLIDMELREKFP 300
Query: 78 AP 79
Sbjct: 301 EL 302
>gnl|CDD|187562 cd05252, CDP_GD_SDR_e, CDP-D-glucose 4,6-dehydratase, extended
(e) SDRs. This subgroup contains CDP-D-glucose
4,6-dehydratase, an extended SDR, which catalyzes the
conversion of CDP-D-glucose to
CDP-4-keto-6-deoxy-D-glucose. This subgroup has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 336
Score = 36.1 bits (84), Expect = 6e-04
Identities = 12/25 (48%), Positives = 14/25 (56%)
Query: 23 FYQNRSVFVTGGTGFMGKVLVEKLL 47
F+Q + V VTG TGF G L L
Sbjct: 1 FWQGKRVLVTGHTGFKGSWLSLWLQ 25
>gnl|CDD|216461 pfam01370, Epimerase, NAD dependent epimerase/dehydratase family.
This family of proteins utilise NAD as a cofactor. The
proteins in this family use nucleotide-sugar substrates
for a variety of chemical reactions.
Length = 233
Score = 34.6 bits (80), Expect = 0.002
Identities = 18/44 (40%), Positives = 25/44 (56%), Gaps = 2/44 (4%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRL 72
+ VTGGTGF+G LV +LL+ G + I L R + GR+
Sbjct: 1 ILVTGGTGFIGSHLVRRLLQE--GYEVIVLGRRRRSESLNTGRI 42
>gnl|CDD|233954 TIGR02622, CDP_4_6_dhtase, CDP-glucose 4,6-dehydratase. Members
of this protein family are CDP-glucose 4,6-dehydratase
from a variety of Gram-negative and Gram-positive
bacteria. Members typically are encoded next to a gene
that encodes a glucose-1-phosphate
cytidylyltransferase, which produces the substrate,
CDP-D-glucose, used by this enzyme to produce
CDP-4-keto-6-deoxyglucose [Cell envelope, Biosynthesis
and degradation of surface polysaccharides and
lipopolysaccharides].
Length = 349
Score = 33.8 bits (78), Expect = 0.003
Identities = 11/21 (52%), Positives = 13/21 (61%)
Query: 23 FYQNRSVFVTGGTGFMGKVLV 43
F+Q + V VTG TGF G L
Sbjct: 1 FWQGKKVLVTGHTGFKGSWLS 21
>gnl|CDD|187548 cd05237, UDP_invert_4-6DH_SDR_e, UDP-Glcnac (UDP-linked
N-acetylglucosamine) inverting 4,6-dehydratase,
extended (e) SDRs. UDP-Glcnac inverting
4,6-dehydratase was identified in Helicobacter pylori
as the hexameric flaA1 gene product (FlaA1). FlaA1 is
hexameric, possesses UDP-GlcNAc-inverting
4,6-dehydratase activity, and catalyzes the first step
in the creation of a pseudaminic acid derivative in
protein glycosylation. Although this subgroup has the
NADP-binding motif characteristic of extended SDRs, its
members tend to have a Met substituted for the active
site Tyr found in most SDR families. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 287
Score = 33.7 bits (78), Expect = 0.004
Identities = 10/27 (37%), Positives = 17/27 (62%)
Query: 26 NRSVFVTGGTGFMGKVLVEKLLRSCPG 52
+++ VTGG G +G LV ++L+ P
Sbjct: 2 GKTILVTGGAGSIGSELVRQILKFGPK 28
>gnl|CDD|215370 PLN02686, PLN02686, cinnamoyl-CoA reductase.
Length = 367
Score = 33.6 bits (77), Expect = 0.004
Identities = 12/23 (52%), Positives = 16/23 (69%)
Query: 26 NRSVFVTGGTGFMGKVLVEKLLR 48
R V VTGG F+G +V++LLR
Sbjct: 53 ARLVCVTGGVSFLGLAIVDRLLR 75
>gnl|CDD|215072 PLN00141, PLN00141, Tic62-NAD(P)-related group II protein;
Provisional.
Length = 251
Score = 32.9 bits (75), Expect = 0.007
Identities = 15/38 (39%), Positives = 22/38 (57%)
Query: 17 STPVSEFYQNRSVFVTGGTGFMGKVLVEKLLRSCPGIK 54
S +E + ++VFV G TG GK +VE+LL +K
Sbjct: 8 SEEDAENVKTKTVFVAGATGRTGKRIVEQLLAKGFAVK 45
>gnl|CDD|132628 TIGR03589, PseB, UDP-N-acetylglucosamine 4,6-dehydratase. This
enzyme catalyzes the first step in the biosynthesis of
pseudaminic acid, the conversion of
UDP-N-acetylglucosamine to
UDP-4-keto-6-deoxy-N-acetylglucosamine. These sequences
are members of the broader pfam01073 (3-beta
hydroxysteroid dehydrogenase/isomerase family) family.
Length = 324
Score = 32.8 bits (75), Expect = 0.009
Identities = 11/25 (44%), Positives = 17/25 (68%)
Query: 23 FYQNRSVFVTGGTGFMGKVLVEKLL 47
+ N+S+ +TGGTG GK + +LL
Sbjct: 1 MFNNKSILITGGTGSFGKAFISRLL 25
>gnl|CDD|187579 cd05271, NDUFA9_like_SDR_a, NADH dehydrogenase (ubiquinone) 1
alpha subcomplex, subunit 9, 39 kDa, (NDUFA9) -like,
atypical (a) SDRs. This subgroup of extended SDR-like
proteins are atypical SDRs. They have a glycine-rich
NAD(P)-binding motif similar to the typical SDRs,
GXXGXXG, and have the YXXXK active site motif (though
not the other residues of the SDR tetrad). Members
identified include NDUFA9 (mitochondrial) and putative
nucleoside-diphosphate-sugar epimerase. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif
is often different from the forms normally seen in
classical or extended SDRs. Atypical SDRs include
biliverdin IX beta reductase (BVR-B,aka flavin
reductase), NMRa (a negative transcriptional regulator
of various fungi), progesterone 5-beta-reductase like
proteins, phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 273
Score = 32.6 bits (75), Expect = 0.011
Identities = 9/21 (42%), Positives = 14/21 (66%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
V V G TGF+G+ +V +L +
Sbjct: 3 VTVFGATGFIGRYVVNRLAKR 23
>gnl|CDD|187582 cd05274, KR_FAS_SDR_x, ketoreductase (KR) and fatty acid synthase
(FAS), complex (x) SDRs. Ketoreductase, a module of the
multidomain polyketide synthase (PKS), has 2 subdomains,
each corresponding to a SDR family monomer. The
C-terminal subdomain catalyzes the NADPH-dependent
reduction of the beta-carbonyl of a polyketide to a
hydroxyl group, a step in the biosynthesis of
polyketides, such as erythromycin. The N-terminal
subdomain, an interdomain linker, is a truncated
Rossmann fold which acts to stabilizes the catalytic
subdomain. Unlike typical SDRs, the isolated domain does
not oligomerize but is composed of 2 subdomains, each
resembling an SDR monomer. The active site resembles
that of typical SDRs, except that the usual positions of
the catalytic Asn and Tyr are swapped, so that the
canonical YXXXK motif changes to YXXXN. Modular PKSs are
multifunctional structures in which the makeup
recapitulates that found in (and may have evolved from)
FAS. In some instances, such as porcine FAS, an enoyl
reductase (ER) module is inserted between the
sub-domains. Fatty acid synthesis occurs via the
stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consist of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthase
uses a dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-KR, forming beta-hydroxyacyl-ACP, which is in turn
dehydrated by dehydratase to a beta-enoyl intermediate,
which is reduced by NADP-dependent beta-ER. Polyketide
synthesis also proceeds via the addition of 2-carbon
units as in fatty acid synthesis. The complex SDR
NADP-binding motif, GGXGXXG, is often present, but is
not strictly conserved in each instance of the module.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 375
Score = 32.4 bits (74), Expect = 0.013
Identities = 12/51 (23%), Positives = 21/51 (41%), Gaps = 2/51 (3%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAE 74
+ + +TGG G +G ++ L G +++ LL R R A
Sbjct: 148 GLDGTYLITGGLGGLGLLVARWLAAR--GARHLVLLSRRGPAPRAAARAAL 196
>gnl|CDD|187552 cd05241, 3b-HSD-like_SDR_e, 3beta-hydroxysteroid dehydrogenases
(3b-HSD)-like, extended (e) SDRs. Extended SDR family
domains belonging to this subgroup have the
characteristic active site tetrad and a fairly
well-conserved NAD(P)-binding motif. 3b-HSD catalyzes
the NAD-dependent conversion of various steroids, such
as pregnenolone to progesterone, or androstenediol to
testosterone. This subgroup includes an unusual
bifunctional 3b-HSD/C-4 decarboxylase from Arabidopsis
thaliana, and Saccharomyces cerevisiae ERG26, a
3b-HSD/C-4 decarboxylase, involved in the synthesis of
ergosterol, the major sterol of yeast. It also includes
human 3 beta-HSD/HSD3B1 and C(27) 3beta-HSD/
[3beta-hydroxy-delta(5)-C(27)-steroid oxidoreductase;
HSD3B7]. C(27) 3beta-HSD/HSD3B7 is a membrane-bound
enzyme of the endoplasmic reticulum, that catalyzes the
isomerization and oxidation of 7alpha-hydroxylated
sterol intermediates, an early step in bile acid
biosynthesis. Mutations in the human NSDHL (NAD(P)H
steroid dehydrogenase-like protein) cause CHILD
syndrome (congenital hemidysplasia with ichthyosiform
nevus and limb defects), an X-linked dominant,
male-lethal trait. Mutations in the human gene encoding
C(27) 3beta-HSD underlie a rare autosomal recessive
form of neonatal cholestasis. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid sythase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 331
Score = 32.0 bits (73), Expect = 0.015
Identities = 13/21 (61%), Positives = 17/21 (80%)
Query: 28 SVFVTGGTGFMGKVLVEKLLR 48
SV VTGG+GF G+ LV++LL
Sbjct: 1 SVLVTGGSGFFGERLVKQLLE 21
>gnl|CDD|187671 cd09811, 3b-HSD_HSDB1_like_SDR_e, human 3beta-HSD (hydroxysteroid
dehydrogenase) and HSD3B1(delta 5-delta
4-isomerase)-like, extended (e) SDRs. This
extended-SDR subgroup includes human 3 beta-HSD/HSD3B1
and C(27) 3beta-HSD/
[3beta-hydroxy-delta(5)-C(27)-steroid oxidoreductase;
HSD3B7], and related proteins. These proteins have the
characteristic active site tetrad and NAD(P)-binding
motif of extended SDRs. 3 beta-HSD catalyzes the
oxidative conversion of delta 5-3 beta-hydroxysteroids
to the delta 4-3-keto configuration; this activity is
essential for the biosynthesis of all classes of
hormonal steroids. C(27) 3beta-HSD is a membrane-bound
enzyme of the endoplasmic reticulum, it catalyzes the
isomerization and oxidation of 7alpha-hydroxylated
sterol intermediates, an early step in bile acid
biosynthesis. Mutations in the human gene encoding
C(27) 3beta-HSD underlie a rare autosomal recessive
form of neonatal cholestasis. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid sythase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 354
Score = 32.1 bits (73), Expect = 0.019
Identities = 12/32 (37%), Positives = 18/32 (56%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLL 59
VTGG GF+G+ ++ LL +K I +L
Sbjct: 1 VCLVTGGGGFLGQHIIRLLLERKEELKEIRVL 32
>gnl|CDD|187575 cd05265, SDR_a1, atypical (a) SDRs, subgroup 1. Atypical SDRs in
this subgroup are poorly defined and have been
identified putatively as isoflavones reductase, sugar
dehydratase, mRNA binding protein etc. Atypical SDRs
are distinct from classical SDRs. Members of this
subgroup retain the canonical active site triad (though
not the upstream Asn found in most SDRs) but have an
unusual putative glycine-rich NAD(P)-binding motif,
GGXXXXG, in the usual location. Atypical SDRs generally
lack the catalytic residues characteristic of the SDRs,
and their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 250
Score = 31.9 bits (73), Expect = 0.019
Identities = 11/21 (52%), Positives = 15/21 (71%)
Query: 27 RSVFVTGGTGFMGKVLVEKLL 47
+ + GGT F+GK LVE+LL
Sbjct: 1 MKILIIGGTRFIGKALVEELL 21
>gnl|CDD|187545 cd05234, UDP_G4E_2_SDR_e, UDP-glucose 4 epimerase, subgroup 2,
extended (e) SDRs. UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), is a homodimeric extended
SDR. It catalyzes the NAD-dependent conversion of
UDP-galactose to UDP-glucose, the final step in Leloir
galactose synthesis. This subgroup is comprised of
archaeal and bacterial proteins, and has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 305
Score = 31.9 bits (73), Expect = 0.019
Identities = 11/20 (55%), Positives = 15/20 (75%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ VTGG GF+G LV++LL
Sbjct: 2 ILVTGGAGFIGSHLVDRLLE 21
>gnl|CDD|187673 cd09813, 3b-HSD-NSDHL-like_SDR_e, human NSDHL (NAD(P)H steroid
dehydrogenase-like protein)-like, extended (e) SDRs.
This subgroup includes human NSDHL and related
proteins. These proteins have the characteristic active
site tetrad of extended SDRs, and also have a close
match to their NAD(P)-binding motif. Human NSDHL is a
3beta-hydroxysteroid dehydrogenase (3 beta-HSD) which
functions in the cholesterol biosynthetic pathway. 3
beta-HSD catalyzes the oxidative conversion of delta
5-3 beta-hydroxysteroids to the delta 4-3-keto
configuration; this activity is essential for the
biosynthesis of all classes of hormonal steroids.
Mutations in the gene encoding NSDHL cause CHILD
syndrome (congenital hemidysplasia with ichthyosiform
nevus and limb defects), an X-linked dominant,
male-lethal trait. This subgroup also includes an
unusual bifunctional [3beta-hydroxysteroid
dehydrogenase (3b-HSD)/C-4 decarboxylase from
Arabidopsis thaliana, and Saccharomyces cerevisiae
ERG26, a 3b-HSD/C-4 decarboxylase, involved in the
synthesis of ergosterol, the major sterol of yeast.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid sythase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 335
Score = 31.6 bits (72), Expect = 0.021
Identities = 13/21 (61%), Positives = 17/21 (80%)
Query: 28 SVFVTGGTGFMGKVLVEKLLR 48
S V GG+GF+G+ LVE+LLR
Sbjct: 1 SCLVVGGSGFLGRHLVEQLLR 21
>gnl|CDD|187566 cd05256, UDP_AE_SDR_e, UDP-N-acetylglucosamine 4-epimerase,
extended (e) SDRs. This subgroup contains
UDP-N-acetylglucosamine 4-epimerase of Pseudomonas
aeruginosa, WbpP, an extended SDR, that catalyzes the
NAD+ dependent conversion of UDP-GlcNAc and UDPGalNA to
UDP-Glc and UDP-Gal. This subgroup has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 304
Score = 31.8 bits (73), Expect = 0.021
Identities = 13/20 (65%), Positives = 15/20 (75%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTGG GF+G LVE+LL
Sbjct: 2 VLVTGGAGFIGSHLVERLLE 21
>gnl|CDD|187537 cd05226, SDR_e_a, Extended (e) and atypical (a) SDRs. Extended
or atypical short-chain dehydrogenases/reductases
(SDRs, aka tyrosine-dependent oxidoreductases) are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
Atypical SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Atypical
SDRs include biliverdin IX beta reductase (BVR-B,aka
flavin reductase), NMRa (a negative transcriptional
regulator of various fungi), progesterone
5-beta-reductase like proteins, phenylcoumaran benzylic
ether and pinoresinol-lariciresinol reductases,
phenylpropene synthases, eugenol synthase,
triphenylmethane reductase, isoflavone reductases, and
others. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 176
Score = 31.2 bits (71), Expect = 0.028
Identities = 8/20 (40%), Positives = 13/20 (65%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ + G TGF+G+ L +LL
Sbjct: 1 ILILGATGFIGRALARELLE 20
>gnl|CDD|187538 cd05227, AR_SDR_e, aldehyde reductase, extended (e) SDRs. This
subgroup contains aldehyde reductase of the extended
SDR-type and related proteins. Aldehyde reductase I
(aka carbonyl reductase) is an NADP-binding SDR; it has
an NADP-binding motif consensus that is slightly
different from the canonical SDR form and lacks the Asn
of the extended SDR active site tetrad. Aldehyde
reductase I catalyzes the NADP-dependent reduction of
ethyl 4-chloro-3-oxobutanoate to ethyl
(R)-4-chloro-3-hydroxybutanoate. Extended SDRs are
distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 301
Score = 31.5 bits (72), Expect = 0.028
Identities = 11/20 (55%), Positives = 15/20 (75%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTG TGF+ +VE+LL+
Sbjct: 2 VLVTGATGFIASHIVEQLLK 21
>gnl|CDD|187661 cd08958, FR_SDR_e, flavonoid reductase (FR), extended (e) SDRs.
This subgroup contains FRs of the extended SDR-type and
related proteins. These FRs act in the NADP-dependent
reduction of flavonoids, ketone-containing plant
secondary metabolites; they have the characteristic
active site triad of the SDRs (though not the upstream
active site Asn) and a NADP-binding motif that is very
similar to the typical extended SDR motif. Extended
SDRs are distinct from classical SDRs. In addition to
the Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 293
Score = 31.4 bits (72), Expect = 0.029
Identities = 11/20 (55%), Positives = 16/20 (80%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTG +GF+G LV++LL+
Sbjct: 1 VCVTGASGFIGSWLVKRLLQ 20
>gnl|CDD|187554 cd05243, SDR_a5, atypical (a) SDRs, subgroup 5. This subgroup
contains atypical SDRs, some of which are identified as
putative NAD(P)-dependent epimerases, one as a putative
NAD-dependent epimerase/dehydratase. Atypical SDRs are
distinct from classical SDRs. Members of this subgroup
have a glycine-rich NAD(P)-binding motif that is very
similar to the extended SDRs, GXXGXXG, and binds NADP.
Generally, this subgroup has poor conservation of the
active site tetrad; however, individual sequences do
contain matches to the YXXXK active site motif, the
upstream Ser, and there is a highly conserved Asp in
place of the usual active site Asn throughout the
subgroup. Atypical SDRs generally lack the catalytic
residues characteristic of the SDRs, and their
glycine-rich NAD(P)-binding motif is often different
from the forms normally seen in classical or extended
SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 203
Score = 31.1 bits (71), Expect = 0.030
Identities = 16/56 (28%), Positives = 26/56 (46%), Gaps = 4/56 (7%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR-PKHGQDINGRLAEIINAPLDW 82
V V G TG +G+ +V +LL G + L+R P + + AE++ L
Sbjct: 1 KVLVVGATGKVGRHVVRELLDR--GY-QVRALVRDPSQAEKLEAAGAEVVVGDLTD 53
>gnl|CDD|163279 TIGR03466, HpnA, hopanoid-associated sugar epimerase. The
sequences in this family are members of the pfam01370
superfamily of NAD-dependent epimerases and
dehydratases typically acting on nucleotide-sugar
substrates. The genes of the family modeled here are
generally in the same locus with genes involved in the
biosynthesis and elaboration of hopene, the cyclization
product of the polyisoprenoid squalene. This gene and
its association with hopene biosynthesis in Zymomonas
mobilis has been noted in the literature where the gene
symbol hpnA was assigned. Hopanoids are known to be
components of the plasma membrane and to have polar
sugar head groups in Z. mobilis and other species.
Length = 328
Score = 31.1 bits (71), Expect = 0.032
Identities = 11/19 (57%), Positives = 13/19 (68%)
Query: 29 VFVTGGTGFMGKVLVEKLL 47
V VTG TGF+G +V LL
Sbjct: 3 VLVTGATGFVGSAVVRLLL 21
>gnl|CDD|187560 cd05250, CC3_like_SDR_a, CC3(TIP30)-like, atypical (a) SDRs.
Atypical SDRs in this subgroup include CC3 (also known
as TIP30) which is implicated in tumor suppression.
Atypical SDRs are distinct from classical SDRs. Members
of this subgroup have a glycine rich NAD(P)-binding
motif that resembles the extended SDRs, and have an
active site triad of the SDRs (YXXXK and upstream Ser),
although the upstream Asn of the usual SDR active site
is substituted with Asp. For CC3, the Tyr of the triad
is displaced compared to the usual SDRs and the protein
is monomeric, both these observations suggest that the
usual SDR catalytic activity is not present. NADP
appears to serve an important role as a ligand, and may
be important in the interaction with other
macromolecules. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 214
Score = 31.1 bits (71), Expect = 0.037
Identities = 14/56 (25%), Positives = 26/56 (46%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINAPLDW 82
++ V G TG +GK L+ +LL+S K ++ R + +L +I+
Sbjct: 1 KTALVLGATGLVGKHLLRELLKSPYYSKVTAIVRRKLTFPEAKEKLVQIVVDFERL 56
>gnl|CDD|233570 TIGR01777, yfcH, TIGR01777 family protein. This model represents
a clade of proteins of unknown function including the
E. coli yfcH protein [Hypothetical proteins,
Conserved].
Length = 291
Score = 31.1 bits (71), Expect = 0.041
Identities = 9/21 (42%), Positives = 16/21 (76%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
+ +TGGTGF+G+ L ++L +
Sbjct: 1 ILITGGTGFIGRALTQRLTKR 21
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 30.6 bits (70), Expect = 0.044
Identities = 9/23 (39%), Positives = 14/23 (60%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLL 47
+ + V VTG +G+ VE+LL
Sbjct: 5 KGKVVLVTGANRGIGRAFVEQLL 27
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 30.6 bits (70), Expect = 0.051
Identities = 14/49 (28%), Positives = 23/49 (46%), Gaps = 2/49 (4%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEI 75
+V +TGGTG +G L L G +++ L+ R +AE+
Sbjct: 1 GTVLITGGTGGLGLALARWLAAE--GARHLVLVSRRGPAPGAAELVAEL 47
>gnl|CDD|200431 TIGR04180, EDH_00030, NAD dependent epimerase/dehydratase,
LLPSF_EDH_00030 family. This clade within the NAD
dependent epimerase/dehydratase superfamily (pfam01370)
is characterized by inclusion of its members within a
cassette of seven distinctive enzymes. These include
four genes homologous to the elements of the neuraminic
(sialic) acid biosynthesis cluster (NeuABCD), an
aminotransferase and a nucleotidyltransferase in
addition to the epimerase/dehydratase. Together it is
very likely that these enzymes direct the biosynthesis
of a nine-carbon sugar analagous to CMP-neuraminic
acid. These seven genes form the core of the cassette,
although they are often accompanied by additional genes
that may further modify the product sugar. Although
this cassette is widely distributed in bacteria, the
family nomenclature arises from the instance in
Leptospira interrogans serovar Lai, str. 56601, where
it appears as the 30th gene in the 91-gene
lipopolysaccharide biosynthesis cluster.
Length = 297
Score = 30.3 bits (69), Expect = 0.059
Identities = 12/20 (60%), Positives = 14/20 (70%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTG GF+G LVE L+R
Sbjct: 1 VLVTGADGFIGSHLVEALVR 20
>gnl|CDD|187567 cd05257, Arna_like_SDR_e, Arna decarboxylase_like, extended (e)
SDRs. Decarboxylase domain of ArnA. ArnA, is an enzyme
involved in the modification of outer membrane protein
lipid A of gram-negative bacteria. It is a bifunctional
enzyme that catalyzes the NAD-dependent decarboxylation
of UDP-glucuronic acid and
N-10-formyltetrahydrofolate-dependent formylation of
UDP-4-amino-4-deoxy-l-arabinose; its NAD-dependent
decaboxylating activity is in the C-terminal 360
residues. This subgroup belongs to the extended SDR
family, however the NAD binding motif is not a perfect
match and the upstream Asn of the canonical active site
tetrad is not conserved. Extended SDRs are distinct
from classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 316
Score = 30.3 bits (69), Expect = 0.067
Identities = 12/22 (54%), Positives = 15/22 (68%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRS 49
+V VTG GF+G L E+LLR
Sbjct: 1 NVLVTGADGFIGSHLTERLLRE 22
>gnl|CDD|187541 cd05230, UGD_SDR_e, UDP-glucuronate decarboxylase (UGD) and
related proteins, extended (e) SDRs. UGD catalyzes the
formation of UDP-xylose from UDP-glucuronate; it is an
extended-SDR, and has the characteristic glycine-rich
NAD-binding pattern, TGXXGXXG, and active site tetrad.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 305
Score = 30.3 bits (69), Expect = 0.068
Identities = 9/20 (45%), Positives = 14/20 (70%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ +TGG GF+G L ++LL
Sbjct: 3 ILITGGAGFLGSHLCDRLLE 22
>gnl|CDD|224015 COG1090, COG1090, Predicted nucleoside-diphosphate sugar
epimerase [General function prediction only].
Length = 297
Score = 30.3 bits (69), Expect = 0.069
Identities = 17/61 (27%), Positives = 31/61 (50%), Gaps = 11/61 (18%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR--PKHGQDINGR------LAEIINAPL 80
+ +TGGTG +G+ L +L + G + +L R PK Q+++ LA+ + +
Sbjct: 1 ILITGGTGLIGRALTARLRK---GGHQVTILTRRPPKASQNLHPNVTLWEGLADALTLGI 57
Query: 81 D 81
D
Sbjct: 58 D 58
>gnl|CDD|187550 cd05239, GDP_FS_SDR_e, GDP-fucose synthetase, extended (e) SDRs.
GDP-fucose synthetase (aka 3, 5-epimerase-4-reductase)
acts in the NADP-dependent synthesis of GDP-fucose from
GDP-mannose. Two activities have been proposed for the
same active site: epimerization and reduction. Proteins
in this subgroup are extended SDRs, which have a
characteristic active site tetrad and an NADP-binding
motif, [AT]GXXGXXG, that is a close match to the
archetypical form. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 300
Score = 29.9 bits (68), Expect = 0.087
Identities = 8/21 (38%), Positives = 11/21 (52%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
+ VTG G +G +V L R
Sbjct: 2 ILVTGHRGLVGSAIVRVLARR 22
>gnl|CDD|223774 COG0702, COG0702, Predicted nucleoside-diphosphate-sugar
epimerases [Cell envelope biogenesis, outer membrane /
Carbohydrate transport and metabolism].
Length = 275
Score = 29.9 bits (67), Expect = 0.097
Identities = 10/21 (47%), Positives = 14/21 (66%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
+ VTG TGF+G +V +LL
Sbjct: 3 ILVTGATGFVGGAVVRELLAR 23
>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 = 29.7 bits (67), Expect = 0.099
Identities = 14/37 (37%), Positives = 21/37 (56%), Gaps = 2/37 (5%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR 61
++++V VTG +GK VE LL G K +Y +R
Sbjct: 2 KDKTVLVTGANRGIGKAFVESLLAH--GAKKVYAAVR 36
>gnl|CDD|187659 cd08956, KR_3_FAS_SDR_x, beta-ketoacyl reductase (KR) domain of
fatty acid synthase (FAS), subgroup 3, complex (x).
Ketoreductase, a module of the multidomain polyketide
synthase (PKS), has 2 subdomains, each corresponding to
a SDR family monomer. The C-terminal subdomain catalyzes
the NADPH-dependent reduction of the beta-carbonyl of a
polyketide to a hydroxyl group, a step in the
biosynthesis of polyketides, such as erythromycin. The
N-terminal subdomain, an interdomain linker, is a
truncated Rossmann fold which acts to stabilizes the
catalytic subdomain. Unlike typical SDRs, the isolated
domain does not oligomerize but is composed of 2
subdomains, each resembling an SDR monomer. The active
site resembles that of typical SDRs, except that the
usual positions of the catalytic Asn and Tyr are
swapped, so that the canonical YXXXK motif changes to
YXXXN. Modular PKSs are multifunctional structures in
which the makeup recapitulates that found in (and may
have evolved from) FAS. In some instances, such as
porcine FAS, an enoyl reductase (ER) module is inserted
between the sub-domains. Fatty acid synthesis occurs via
the stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consists of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthesis
uses a dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-KR, forming beta-hydroxyacyl-ACP, which is in turn
dehydrated by dehydratase to a beta-enoyl intermediate,
which is reduced by NADP-dependent beta- ER. Polyketide
synthesis also proceeds via the addition of 2-carbon
units as in fatty acid synthesis. The complex SDR
NADP-binding motif, GGXGXXG, is often present, but is
not strictly conserved in each instance of the module.
This subfamily includes KR domains found in many
multidomain PKSs, including six of seven Sorangium
cellulosum PKSs (encoded by spiDEFGHIJ) which
participate in the synthesis of the polyketide scaffold
of the cytotoxic spiroketal polyketide spirangien. These
seven PKSs have either a single PKS module (SpiF), two
PKR modules (SpiD,-E,-I,-J), or three PKS modules
(SpiG,-H). This subfamily includes the second KR domains
of SpiE,-G, I, and -J, both KR domains of SpiD, and the
third KR domain of SpiH. The single KR domain of SpiF,
the first and second KR domains of SpiH, the first KR
domains of SpiE,-G,- I, and -J, and the third KR domain
of SpiG, belong to a different KR_FAS_SDR subfamily.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 448
Score = 28.8 bits (65), Expect = 0.27
Identities = 15/50 (30%), Positives = 27/50 (54%), Gaps = 7/50 (14%)
Query: 13 MPAPSTPVSEFYQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRP 62
+P P P + +V +TGGTG +G +L L+ G++++ L+ R
Sbjct: 186 VPRPLDP------DGTVLITGGTGTLGALLARHLVT-EHGVRHLLLVSRR 228
>gnl|CDD|235738 PRK06199, PRK06199, ornithine cyclodeaminase; Validated.
Length = 379
Score = 28.5 bits (64), Expect = 0.28
Identities = 14/49 (28%), Positives = 21/49 (42%), Gaps = 10/49 (20%)
Query: 34 GTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQDINGRLAEIINAPLDW 82
G G MGK ++ + CPGI I I GR + +++ W
Sbjct: 162 GPGVMGKTILAAFMAVCPGIDTI----------KIKGRGQKSLDSFATW 200
>gnl|CDD|187536 cd05193, AR_like_SDR_e, aldehyde reductase, flavonoid reductase,
and related proteins, extended (e) SDRs. This subgroup
contains aldehyde reductase and flavonoid reductase of
the extended SDR-type and related proteins. Proteins in
this subgroup have a complete SDR-type active site
tetrad and a close match to the canonical extended SDR
NADP-binding motif. Aldehyde reductase I (aka carbonyl
reductase) is an NADP-binding SDR; it catalyzes the
NADP-dependent reduction of ethyl
4-chloro-3-oxobutanoate to ethyl
(R)-4-chloro-3-hydroxybutanoate. The related flavonoid
reductases act in the NADP-dependent reduction of
flavonoids, ketone-containing plant secondary
metabolites. Extended SDRs are distinct from classical
SDRs. In addition to the Rossmann fold (alpha/beta
folding pattern with a central beta-sheet) core region
typical of all SDRs, extended SDRs have a less
conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 295
Score = 28.7 bits (64), Expect = 0.28
Identities = 10/19 (52%), Positives = 14/19 (73%)
Query: 29 VFVTGGTGFMGKVLVEKLL 47
V VTG +GF+ +VE+LL
Sbjct: 1 VLVTGASGFVASHVVEQLL 19
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 28.3 bits (64), Expect = 0.30
Identities = 7/23 (30%), Positives = 11/23 (47%)
Query: 26 NRSVFVTGGTGFMGKVLVEKLLR 48
R VTG +G+ + +L R
Sbjct: 6 GRVALVTGAARGLGRAIALRLAR 28
>gnl|CDD|130249 TIGR01181, dTDP_gluc_dehyt, dTDP-glucose 4,6-dehydratase. This
protein is related to UDP-glucose 4-epimerase (GalE)
and likewise has an NAD cofactor [Cell envelope,
Biosynthesis and degradation of surface polysaccharides
and lipopolysaccharides].
Length = 317
Score = 28.1 bits (63), Expect = 0.35
Identities = 10/24 (41%), Positives = 13/24 (54%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCP 51
+ VTGG GF+G V +L P
Sbjct: 1 RILVTGGAGFIGSNFVRYILNEHP 24
>gnl|CDD|187568 cd05258, CDP_TE_SDR_e, CDP-tyvelose 2-epimerase, extended (e)
SDRs. CDP-tyvelose 2-epimerase is a tetrameric SDR
that catalyzes the conversion of CDP-D-paratose to
CDP-D-tyvelose, the last step in tyvelose biosynthesis.
This subgroup is a member of the extended SDR
subfamily, with a characteristic active site tetrad and
NAD-binding motif. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 337
Score = 28.4 bits (64), Expect = 0.36
Identities = 16/48 (33%), Positives = 19/48 (39%), Gaps = 8/48 (16%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLR---SCPGIKNIYLLMRPKHGQDINGR 71
V +TGG GF+G L L+ G N LMR G N
Sbjct: 1 MRVLITGGAGFIGSNLARFFLKQGWEVIGFDN---LMRR--GSFGNLA 43
>gnl|CDD|187569 cd05259, PCBER_SDR_a, phenylcoumaran benzylic ether reductase
(PCBER) like, atypical (a) SDRs. PCBER and
pinoresinol-lariciresinol reductases are
NADPH-dependent aromatic alcohol reductases, and are
atypical members of the SDR family. Other proteins in
this subgroup are identified as eugenol synthase. These
proteins contain an N-terminus characteristic of
NAD(P)-binding proteins and a small C-terminal domain
presumed to be involved in substrate binding, but they
do not have the conserved active site Tyr residue
typically found in SDRs. Numerous other members have
unknown functions. The glycine rich NADP-binding motif
in this subgroup is of 2 forms: GXGXXG and G[GA]XGXXG;
it tends to be atypical compared with the forms
generally seen in classical or extended SDRs. The usual
SDR active site tetrad is not present, but a critical
active site Lys at the usual SDR position has been
identified in various members, though other charged and
polar residues are found at this position in this
subgroup. Atypical SDR-related proteins retain the
Rossmann fold of the SDRs, but have limited sequence
identity and generally lack the catalytic properties of
the archetypical members. Atypical SDRs include
biliverdin IX beta reductase (BVR-B,aka flavin
reductase), NMRa (a negative transcriptional regulator
of various fungi), progesterone 5-beta-reductase like
proteins, phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 282
Score = 28.0 bits (63), Expect = 0.38
Identities = 13/36 (36%), Positives = 19/36 (52%), Gaps = 2/36 (5%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPK 63
+ + G TG +G +V LL S PG + +L RP
Sbjct: 1 KIAIAGATGTLGGPIVSALLAS-PGF-TVTVLTRPS 34
>gnl|CDD|178256 PLN02650, PLN02650, dihydroflavonol-4-reductase.
Length = 351
Score = 28.3 bits (63), Expect = 0.39
Identities = 12/23 (52%), Positives = 16/23 (69%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLL 47
Q +V VTG +GF+G LV +LL
Sbjct: 4 QKETVCVTGASGFIGSWLVMRLL 26
>gnl|CDD|178263 PLN02657, PLN02657, 3,8-divinyl protochlorophyllide a 8-vinyl
reductase.
Length = 390
Score = 28.2 bits (63), Expect = 0.40
Identities = 10/21 (47%), Positives = 16/21 (76%)
Query: 28 SVFVTGGTGFMGKVLVEKLLR 48
+V V G TG++GK +V +L+R
Sbjct: 62 TVLVVGATGYIGKFVVRELVR 82
>gnl|CDD|187660 cd08957, WbmH_like_SDR_e, Bordetella bronchiseptica enzymes WbmH
and WbmG-like, extended (e) SDRs. Bordetella
bronchiseptica enzymes WbmH and WbmG, and related
proteins. This subgroup exhibits the active site tetrad
and NAD-binding motif of the extended SDR family. It
has been proposed that the active site in Bordetella
WbmG and WbmH cannot function as an epimerase, and that
it plays a role in O-antigen synthesis pathway from
UDP-2,3-diacetamido-2,3-dideoxy-l-galacturonic acid.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 307
Score = 28.2 bits (63), Expect = 0.42
Identities = 10/19 (52%), Positives = 13/19 (68%)
Query: 29 VFVTGGTGFMGKVLVEKLL 47
V +TGG G +G L+E LL
Sbjct: 3 VLITGGAGQIGSHLIEHLL 21
>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 = 28.1 bits (63), Expect = 0.42
Identities = 7/23 (30%), Positives = 14/23 (60%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLL 47
+++ + +TG G +GK + LL
Sbjct: 1 EDKIILITGAAGLIGKAFCKALL 23
>gnl|CDD|200381 TIGR04130, FnlA, UDP-N-acetylglucosamine
4,6-dehydratase/5-epimerase. The FnlA enzyme is the
first step in the biosynthesis of UDP-FucNAc from
UDP-GlcNAc in E. coli (along with FnlB and FnlC). The
proteins identified by this model include FnlA homologs
in the O-antigen clusters of O4, O25, O26, O29
(Shigella D11), O118, O145 and O172 serotype strains,
all of which produce O-antigens containing FucNAc (or
the further modified FucNAm). A homolog from
Pseudomonas aerugiosa serotype O11, WbjB, also involved
in the biosynthesis of UDP-FucNAc has been
characterized and is now believed to carry out both the
initial 4,6-dehydratase reaction and the subsequent
epimerization of the resulting methyl group at C-5. A
phylogenetic tree of related sequences shows a distinct
clade of enzymes involved in the biosynthesis of
UDP-QuiNAc (Qui=qinovosamine). This clade appears to be
descendant from the common ancestor of the Pseudomonas
and E. coli fucose-biosynthesis enzymes. It has been
hypothesized that the first step in the biosynthesis of
these two compounds may be the same, and thus that
these enzymes all have the same function. At present,
lacking sufficient confirmation of this, the current
model trusted cutoff only covers the tree segment
surrounding the E. coli genes. The clades containing
the Pseudomonas and QuiNAc biosynthesis enzymes score
above the noise cutoff. Immediately below the noise
cutoff are enzymes involved in the biosynthesis of
UDP-RhaNAc (Rha=rhamnose), which again may or may not
produce the same product.
Length = 337
Score = 28.0 bits (62), Expect = 0.44
Identities = 13/44 (29%), Positives = 25/44 (56%), Gaps = 2/44 (4%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHGQD 67
++++ + +TGGTG G ++ + L + IK I + R + QD
Sbjct: 2 FKDKILLITGGTGSFGNAVLRRFLDT--DIKEIRIFSRDEKKQD 43
>gnl|CDD|177883 PLN02240, PLN02240, UDP-glucose 4-epimerase.
Length = 352
Score = 28.0 bits (63), Expect = 0.51
Identities = 10/21 (47%), Positives = 15/21 (71%)
Query: 27 RSVFVTGGTGFMGKVLVEKLL 47
R++ VTGG G++G V +LL
Sbjct: 6 RTILVTGGAGYIGSHTVLQLL 26
>gnl|CDD|217199 pfam02719, Polysacc_synt_2, Polysaccharide biosynthesis protein.
This is a family of diverse bacterial polysaccharide
biosynthesis proteins including the CapD protein, WalL
protein mannosyl-transferase and several putative
epimerases (e.g. WbiI).
Length = 280
Score = 27.8 bits (63), Expect = 0.52
Identities = 13/33 (39%), Positives = 17/33 (51%), Gaps = 2/33 (6%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR 61
V VTGG G +G L ++L+ K I L R
Sbjct: 1 VLVTGGGGSIGSELCRQILKF--NPKKIILFSR 31
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 27.6 bits (62), Expect = 0.53
Identities = 6/25 (24%), Positives = 11/25 (44%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLLRS 49
+ R VTG +G+ + +L
Sbjct: 5 EGRVALVTGAARGIGRAIAVRLAAD 29
>gnl|CDD|187581 cd05273, GME-like_SDR_e, Arabidopsis thaliana
GDP-mannose-3',5'-epimerase (GME)-like, extended (e)
SDRs. This subgroup of NDP-sugar
epimerase/dehydratases are extended SDRs; they have the
characteristic active site tetrad, and an NAD-binding
motif: TGXXGXX[AG], which is a close match to the
canonical NAD-binding motif. Members include
Arabidopsis thaliana GDP-mannose-3',5'-epimerase (GME)
which catalyzes the epimerization of two positions of
GDP-alpha-D-mannose to form GDP-beta-L-galactose.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 328
Score = 27.8 bits (62), Expect = 0.56
Identities = 9/20 (45%), Positives = 11/20 (55%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
VTG GF+G L E+L
Sbjct: 3 ALVTGAGGFIGSHLAERLKA 22
>gnl|CDD|218398 pfam05045, RgpF, Rhamnan synthesis protein F. This family consists
of a group of proteins which are related to the
Streptococcus rhamnose-glucose polysaccharide assembly
protein (RgpF). Rhamnan backbones are found in several O
polysaccharides of phytopathogenic bacteria and are
regarded as pathogenic factors.
Length = 498
Score = 27.8 bits (62), Expect = 0.57
Identities = 8/29 (27%), Positives = 15/29 (51%)
Query: 40 KVLVEKLLRSCPGIKNIYLLMRPKHGQDI 68
K +E++L G KN + + G+D+
Sbjct: 305 KAEIEEILAKRKGAKNAIVRVVQNRGRDM 333
>gnl|CDD|219957 pfam08659, KR, KR domain. This enzymatic domain is part of
bacterial polyketide synthases and catalyzes the first
step in the reductive modification of the beta-carbonyl
centres in the growing polyketide chain. It uses NADPH
to reduce the keto group to a hydroxy group.
Length = 181
Score = 27.5 bits (62), Expect = 0.65
Identities = 12/34 (35%), Positives = 17/34 (50%), Gaps = 2/34 (5%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR 61
+ VTGG G +G L L G +++ LL R
Sbjct: 2 TYLVTGGLGGLGLELARWLAER--GARHLVLLSR 33
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 27.2 bits (61), Expect = 0.70
Identities = 9/25 (36%), Positives = 11/25 (44%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLR 48
R V VTGGT +G + L
Sbjct: 4 LTGRVVLVTGGTRGIGAGIARAFLA 28
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 27.3 bits (61), Expect = 0.76
Identities = 7/25 (28%), Positives = 10/25 (40%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLR 48
V VTGG +G+ + E
Sbjct: 9 LDGLRVLVTGGASGIGRAIAEAFAE 33
>gnl|CDD|177856 PLN02206, PLN02206, UDP-glucuronate decarboxylase.
Length = 442
Score = 27.3 bits (60), Expect = 0.79
Identities = 11/20 (55%), Positives = 15/20 (75%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTGG GF+G LV++L+
Sbjct: 122 VVVTGGAGFVGSHLVDRLMA 141
>gnl|CDD|187556 cd05245, SDR_a2, atypical (a) SDRs, subgroup 2. This subgroup
contains atypical SDRs, one member is identified as
Escherichia coli protein ybjT, function unknown.
Atypical SDRs are distinct from classical SDRs. Members
of this subgroup have a glycine-rich NAD(P)-binding
motif consensus that generally matches the extended
SDRs, TGXXGXXG, but lacks the characteristic active
site residues of the SDRs. This subgroup has basic
residues (HXXXR) in place of the active site motif
YXXXK, these may have a catalytic role. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif
is often different from the forms normally seen in
classical or extended SDRs. Atypical SDRs include
biliverdin IX beta reductase (BVR-B,aka flavin
reductase), NMRa (a negative transcriptional regulator
of various fungi), progesterone 5-beta-reductase like
proteins, phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 293
Score = 27.3 bits (61), Expect = 0.81
Identities = 11/21 (52%), Positives = 15/21 (71%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
V VTG TG++G LV +LL+
Sbjct: 1 VLVTGATGYVGGRLVPRLLQE 21
>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 = 27.1 bits (60), Expect = 0.86
Identities = 6/24 (25%), Positives = 11/24 (45%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLLR 48
+ VTG + +G+ + L R
Sbjct: 4 SGKVALVTGASSGIGRAIARALAR 27
>gnl|CDD|216283 pfam01073, 3Beta_HSD, 3-beta hydroxysteroid
dehydrogenase/isomerase family. The enzyme 3
beta-hydroxysteroid dehydrogenase/5-ene-4-ene isomerase
(3 beta-HSD) catalyzes the oxidation and isomerisation
of 5-ene-3 beta-hydroxypregnene and
5-ene-hydroxyandrostene steroid precursors into the
corresponding 4-ene-ketosteroids necessary for the
formation of all classes of steroid hormones.
Length = 280
Score = 26.9 bits (60), Expect = 0.90
Identities = 11/18 (61%), Positives = 14/18 (77%)
Query: 31 VTGGTGFMGKVLVEKLLR 48
VTGG GF+G+ +V LLR
Sbjct: 2 VTGGGGFLGRHIVRLLLR 19
>gnl|CDD|187559 cd05248, ADP_GME_SDR_e, ADP-L-glycero-D-mannoheptose 6-epimerase
(GME), extended (e) SDRs. This subgroup contains
ADP-L-glycero-D-mannoheptose 6-epimerase, an extended
SDR, which catalyzes the NAD-dependent interconversion
of ADP-D-glycero-D-mannoheptose and
ADP-L-glycero-D-mannoheptose. This subgroup has the
canonical active site tetrad and NAD(P)-binding motif.
Extended SDRs are distinct from classical SDRs. In
addition to the Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) core region typical
of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 317
Score = 27.3 bits (61), Expect = 0.90
Identities = 13/31 (41%), Positives = 19/31 (61%), Gaps = 2/31 (6%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLL 59
+ VTGG GF+G LV+ L GI +I ++
Sbjct: 2 IIVTGGAGFIGSNLVKALNER--GITDILVV 30
>gnl|CDD|187543 cd05232, UDP_G4E_4_SDR_e, UDP-glucose 4 epimerase, subgroup 4,
extended (e) SDRs. UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), is a homodimeric extended
SDR. It catalyzes the NAD-dependent conversion of
UDP-galactose to UDP-glucose, the final step in Leloir
galactose synthesis. This subgroup is comprised of
bacterial proteins, and includes the Staphylococcus
aureus capsular polysaccharide Cap5N, which may have a
role in the synthesis of UDP-N-acetyl-d-fucosamine.
This subgroup has the characteristic active site tetrad
and NAD-binding motif of the extended SDRs. Extended
SDRs are distinct from classical SDRs. In addition to
the Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 303
Score = 26.9 bits (60), Expect = 0.90
Identities = 12/20 (60%), Positives = 15/20 (75%)
Query: 28 SVFVTGGTGFMGKVLVEKLL 47
V VTG GF+G+ LV+KLL
Sbjct: 1 KVLVTGANGFIGRALVDKLL 20
>gnl|CDD|187553 cd05242, SDR_a8, atypical (a) SDRs, subgroup 8. This subgroup
contains atypical SDRs of unknown function. Proteins in
this subgroup have a glycine-rich NAD(P)-binding motif
consensus that resembles that of the extended SDRs,
(GXXGXXG or GGXGXXG), but lacks the characteristic
active site residues of the SDRs. A Cys often replaces
the usual Lys of the YXXXK active site motif, while the
upstream Ser is generally present and Arg replaces the
usual Asn. Atypical SDRs generally lack the catalytic
residues characteristic of the SDRs, and their
glycine-rich NAD(P)-binding motif is often different
from the forms normally seen in classical or extended
SDRs. Atypical SDRs include biliverdin IX beta
reductase (BVR-B,aka flavin reductase), NMRa (a
negative transcriptional regulator of various fungi),
progesterone 5-beta-reductase like proteins,
phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane
reductase, isoflavone reductases, and others. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. In addition to the Rossmann fold
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids, 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.
Length = 296
Score = 27.2 bits (61), Expect = 0.96
Identities = 9/20 (45%), Positives = 14/20 (70%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ +TGGTGF+G+ L +L
Sbjct: 2 IVITGGTGFIGRALTRRLTA 21
>gnl|CDD|187656 cd08953, KR_2_SDR_x, ketoreductase (KR), subgroup 2, complex (x)
SDRs. Ketoreductase, a module of the multidomain
polyketide synthase (PKS), has 2 subdomains, each
corresponding to a SDR family monomer. The C-terminal
subdomain catalyzes the NADPH-dependent reduction of the
beta-carbonyl of a polyketide to a hydroxyl group, a
step in the biosynthesis of polyketides, such as
erythromycin. The N-terminal subdomain, an interdomain
linker, is a truncated Rossmann fold which acts to
stabilizes the catalytic subdomain. Unlike typical SDRs,
the isolated domain does not oligomerize but is composed
of 2 subdomains, each resembling an SDR monomer. The
active site resembles that of typical SDRs, except that
the usual positions of the catalytic Asn and Tyr are
swapped, so that the canonical YXXXK motif changes to
YXXXN. Modular PKSs are multifunctional structures in
which the makeup recapitulates that found in (and may
have evolved from) FAS. Polyketide synthesis also
proceeds via the addition of 2-carbon units as in fatty
acid synthesis. The complex SDR NADP-binding motif,
GGXGXXG, is often present, but is not strictly conserved
in each instance of the module. This subfamily includes
both KR domains of the Bacillus subtilis Pks J,-L, and
PksM, and all three KR domains of PksN, components of
the megacomplex bacillaene synthase, which synthesizes
the antibiotic bacillaene. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 436
Score = 26.9 bits (60), Expect = 1.1
Identities = 11/36 (30%), Positives = 16/36 (44%)
Query: 13 MPAPSTPVSEFYQNRSVFVTGGTGFMGKVLVEKLLR 48
+PA + + VTGG G +G+ L L R
Sbjct: 192 LPAGAAASAPLKPGGVYLVTGGAGGIGRALARALAR 227
>gnl|CDD|218047 pfam04367, DUF502, Protein of unknown function (DUF502).
Predicted to be an integral membrane protein.
Length = 108
Score = 26.3 bits (59), Expect = 1.2
Identities = 11/34 (32%), Positives = 20/34 (58%), Gaps = 5/34 (14%)
Query: 29 VFVTG--GTGFMGKVLV---EKLLRSCPGIKNIY 57
+F+ G F+G+ L+ E+LL P +++IY
Sbjct: 8 IFLVGLLARNFIGRWLLSLGERLLNRIPLVRSIY 41
>gnl|CDD|165812 PLN02166, PLN02166, dTDP-glucose 4,6-dehydratase.
Length = 436
Score = 26.9 bits (59), Expect = 1.2
Identities = 11/19 (57%), Positives = 15/19 (78%)
Query: 29 VFVTGGTGFMGKVLVEKLL 47
+ VTGG GF+G LV+KL+
Sbjct: 123 IVVTGGAGFVGSHLVDKLI 141
>gnl|CDD|233775 TIGR02197, heptose_epim,
ADP-L-glycero-D-manno-heptose-6-epimerase. This family
consists of examples of
ADP-L-glycero-D-mannoheptose-6-epimerase, an enzyme
involved in biosynthesis of the inner core of
lipopolysaccharide (LPS) for Gram-negative bacteria.
This enzyme is homologous to UDP-glucose 4-epimerase
(TIGR01179) and belongs to the NAD dependent
epimerase/dehydratase family (pfam01370) [Cell
envelope, Biosynthesis and degradation of surface
polysaccharides and lipopolysaccharides].
Length = 314
Score = 26.9 bits (60), Expect = 1.3
Identities = 18/60 (30%), Positives = 26/60 (43%), Gaps = 14/60 (23%)
Query: 31 VTGGTGFMGKVLVEKLLRSCPGIKNIYLL--MRPKH------GQDINGRLAEIINAPLDW 82
VTGG GF+G LV+ L GI +I ++ +R H I A+ I+
Sbjct: 3 VTGGAGFIGSNLVKALNER--GITDILVVDNLRDGHKFLNLADLVI----ADYIDKEDFL 56
>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 = 26.8 bits (60), Expect = 1.3
Identities = 6/22 (27%), Positives = 11/22 (50%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLR 48
+ V +TG +GK +L +
Sbjct: 2 KVVVITGANSGIGKETARELAK 23
>gnl|CDD|181609 PRK09009, PRK09009, C factor cell-cell signaling protein;
Provisional.
Length = 235
Score = 26.6 bits (59), Expect = 1.3
Identities = 9/26 (34%), Positives = 16/26 (61%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIK 54
+ + GG+G +GK +V++LL P
Sbjct: 3 ILIVGGSGGIGKAMVKQLLERYPDAT 28
>gnl|CDD|182313 PRK10217, PRK10217, dTDP-glucose 4,6-dehydratase; Provisional.
Length = 355
Score = 26.5 bits (58), Expect = 1.4
Identities = 9/25 (36%), Positives = 14/25 (56%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCP 51
R + +TGG GF+G LV ++
Sbjct: 2 RKILITGGAGFIGSALVRYIINETS 26
>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 = 26.4 bits (59), Expect = 1.6
Identities = 6/25 (24%), Positives = 12/25 (48%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLR 48
+ + F+TGG +GK + +
Sbjct: 1 LKGKVAFITGGGTGIGKAIAKAFAE 25
>gnl|CDD|214833 smart00822, PKS_KR, This enzymatic domain is part of bacterial
polyketide synthases. It catalyses the first step in
the reductive modification of the beta-carbonyl centres
in the growing polyketide chain. It uses NADPH to
reduce the keto group to a hydroxy group.
Length = 180
Score = 26.3 bits (59), Expect = 1.7
Identities = 10/33 (30%), Positives = 16/33 (48%), Gaps = 2/33 (6%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLL 59
+ +TGG G +G+ L L G + + LL
Sbjct: 1 GTYLITGGLGGLGRALARWLAER--GARRLVLL 31
>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 = 26.1 bits (58), Expect = 1.9
Identities = 9/23 (39%), Positives = 12/23 (52%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLL 47
+V +TGGT +G L K L
Sbjct: 4 TGNTVLITGGTSGIGLALARKFL 26
>gnl|CDD|184952 PRK14990, PRK14990, anaerobic dimethyl sulfoxide reductase subunit
A; Provisional.
Length = 814
Score = 26.1 bits (57), Expect = 1.9
Identities = 17/60 (28%), Positives = 27/60 (45%), Gaps = 14/60 (23%)
Query: 8 TISSNMPAPSTPVSEFYQNRSVFVTGGTGFMG----------KVLVEKLLRSCPGIKNIY 57
I++NM + + Y N S+++ GTG +G LV +L+ C G N Y
Sbjct: 146 IIATNMQR----LIKEYGNESIYLNYGTGTLGGTMTRSWPPGNTLVARLMNCCGGYLNHY 201
>gnl|CDD|222146 pfam13460, NAD_binding_10, NADH(P)-binding.
Length = 182
Score = 26.1 bits (58), Expect = 2.0
Identities = 9/18 (50%), Positives = 12/18 (66%)
Query: 31 VTGGTGFMGKVLVEKLLR 48
V G TG G+ LV++LL
Sbjct: 3 VIGATGKTGRRLVKELLA 20
>gnl|CDD|201603 pfam01118, Semialdhyde_dh, Semialdehyde dehydrogenase, NAD
binding domain. This Pfam entry contains the following
members: N-acetyl-glutamine semialdehyde dehydrogenase
(AgrC) Aspartate-semialdehyde dehydrogenase.
Length = 121
Score = 25.6 bits (57), Expect = 2.1
Identities = 13/57 (22%), Positives = 27/57 (47%), Gaps = 5/57 (8%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPK-HGQ---DINGRLAEIINAPLD 81
V + G TG++G+ L+ +LL P ++ + L+ + G+ L + L+
Sbjct: 2 VAIVGATGYVGQELL-RLLAEHPPLELVALVASSRSAGKKVAFAYPILEGGKDLLLE 57
>gnl|CDD|129147 TIGR00036, dapB, dihydrodipicolinate reductase. [Amino acid
biosynthesis, Aspartate family].
Length = 266
Score = 26.2 bits (58), Expect = 2.1
Identities = 16/55 (29%), Positives = 24/55 (43%), Gaps = 5/55 (9%)
Query: 29 VFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKH---GQDINGRLAEIINAPL 80
V V G G MG+ L++ L + G++ + R G D G LA I +
Sbjct: 4 VAVAGAAGRMGRELIKAALAA-EGLQLVAAFERHGSSLQGTDA-GELAGIGKVGV 56
>gnl|CDD|187570 cd05260, GDP_MD_SDR_e, GDP-mannose 4,6 dehydratase, extended (e)
SDRs. GDP-mannose 4,6 dehydratase, a homodimeric SDR,
catalyzes the NADP(H)-dependent conversion of
GDP-(D)-mannose to GDP-4-keto, 6-deoxy-(D)-mannose in
the fucose biosynthesis pathway. These proteins have
the canonical active site triad and NAD-binding
pattern, however the active site Asn is often missing
and may be substituted with Asp. A Glu residue has been
identified as an important active site base. Extended
SDRs are distinct from classical SDRs. In addition to
the Rossmann fold (alpha/beta folding pattern with a
central beta-sheet) core region typical of all SDRs,
extended SDRs have a less conserved C-terminal
extension of approximately 100 amino acids. Extended
SDRs are a diverse collection of proteins, and include
isomerases, epimerases, oxidoreductases, and lyases;
they typically have a TGXXGXXG cofactor binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. Atypical
SDRs generally lack the catalytic residues
characteristic of the SDRs, and their glycine-rich
NAD(P)-binding motif is often different from the forms
normally seen in classical or extended SDRs. Complex
(multidomain) SDRs such as ketoreductase domains of
fatty acid synthase have a GGXGXXG NAD(P)-binding motif
and an altered active site motif (YXXXN). Fungal type
ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding
motif.
Length = 316
Score = 26.0 bits (58), Expect = 2.2
Identities = 9/20 (45%), Positives = 10/20 (50%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+TG TG G L E LL
Sbjct: 2 ALITGITGQDGSYLAEFLLE 21
>gnl|CDD|187551 cd05240, UDP_G4E_3_SDR_e, UDP-glucose 4 epimerase (G4E), subgroup
3, extended (e) SDRs. Members of this bacterial
subgroup are identified as possible sugar epimerases,
such as UDP-glucose 4 epimerase. However, while the
NAD(P)-binding motif is fairly well conserved, not all
members retain the canonical active site tetrad of the
extended SDRs. UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), is a homodimeric extended
SDR. It catalyzes the NAD-dependent conversion of
UDP-galactose to UDP-glucose, the final step in Leloir
galactose synthesis. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 306
Score = 26.2 bits (58), Expect = 2.2
Identities = 8/21 (38%), Positives = 13/21 (61%)
Query: 29 VFVTGGTGFMGKVLVEKLLRS 49
+ VTG G +G++L +L S
Sbjct: 1 ILVTGAAGGLGRLLARRLAAS 21
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 25.9 bits (58), Expect = 2.2
Identities = 6/22 (27%), Positives = 13/22 (59%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKL 46
+ + VTG + +G+ + E+L
Sbjct: 4 EGKVALVTGASRGIGRAIAERL 25
>gnl|CDD|178484 PLN02896, PLN02896, cinnamyl-alcohol dehydrogenase.
Length = 353
Score = 25.9 bits (57), Expect = 2.6
Identities = 10/18 (55%), Positives = 14/18 (77%)
Query: 31 VTGGTGFMGKVLVEKLLR 48
VTG TG++G LV+ LL+
Sbjct: 15 VTGATGYIGSWLVKLLLQ 32
>gnl|CDD|187558 cd05247, UDP_G4E_1_SDR_e, UDP-glucose 4 epimerase, subgroup 1,
extended (e) SDRs. UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), is a homodimeric extended
SDR. It catalyzes the NAD-dependent conversion of
UDP-galactose to UDP-glucose, the final step in Leloir
galactose synthesis. This subgroup has the
characteristic active site tetrad and NAD-binding motif
of the extended SDRs. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 323
Score = 25.6 bits (57), Expect = 2.9
Identities = 10/20 (50%), Positives = 13/20 (65%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTGG G++G V +LL
Sbjct: 2 VLVTGGAGYIGSHTVVELLE 21
>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 = 25.4 bits (56), Expect = 3.2
Identities = 8/39 (20%), Positives = 14/39 (35%), Gaps = 3/39 (7%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMRPKHG 65
+ VTG + +G + L R + L +R
Sbjct: 1 KVALVTGASRGIGIEIARALARDG---YRVSLGLRNPED 36
>gnl|CDD|178326 PLN02725, PLN02725,
GDP-4-keto-6-deoxymannose-3,5-epimerase-4-reductase.
Length = 306
Score = 25.4 bits (56), Expect = 3.4
Identities = 8/17 (47%), Positives = 10/17 (58%)
Query: 30 FVTGGTGFMGKVLVEKL 46
FV G G +G +V KL
Sbjct: 1 FVAGHRGLVGSAIVRKL 17
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A;
Provisional.
Length = 256
Score = 25.3 bits (56), Expect = 3.5
Identities = 7/22 (31%), Positives = 14/22 (63%)
Query: 26 NRSVFVTGGTGFMGKVLVEKLL 47
+++ +TG G +G LV+ +L
Sbjct: 4 GKTILITGAGGLIGSALVKAIL 25
>gnl|CDD|221443 pfam12150, MFP2b, Cytosolic motility protein. This domain family
is found in eukaryotes, and is approximately 50 amino
acids in length. These proteins are found in nematodes.
They complex with MSP (major sperm protein) to allow
motility. Their action is quite similar to the action
of bacterial actin molecules.
Length = 362
Score = 25.7 bits (56), Expect = 3.5
Identities = 9/22 (40%), Positives = 15/22 (68%)
Query: 50 CPGIKNIYLLMRPKHGQDINGR 71
G +N+Y+ + KHG+ I+GR
Sbjct: 25 ALGQQNMYVALWYKHGKPIHGR 46
>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 = 25.3 bits (56), Expect = 3.6
Identities = 6/20 (30%), Positives = 11/20 (55%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
VTG + +G+ + +L R
Sbjct: 1 ALVTGASSGIGRAIARRLAR 20
>gnl|CDD|129255 TIGR00151, ispF, 2-C-methyl-D-erythritol 2,4-cyclodiphosphate
synthase. Members of this protein family are
2C-methyl-D-erythritol 2,4-cyclodiphosphate synthase,
the IspF protein of the deoxyxylulose (non-mevalonate)
pathway of IPP biosynthesis. This protein occurs as an
IspDF bifunctional fusion protein in about 20 percent of
bacterial genomes [Biosynthesis of cofactors, prosthetic
groups, and carriers, Other].
Length = 155
Score = 25.3 bits (56), Expect = 3.8
Identities = 9/24 (37%), Positives = 13/24 (54%), Gaps = 3/24 (12%)
Query: 61 RPK---HGQDINGRLAEIINAPLD 81
RPK H + +AE++ PLD
Sbjct: 101 RPKLLPHIPAMRENIAELLGIPLD 124
>gnl|CDD|187574 cd05264, UDP_G4E_5_SDR_e, UDP-glucose 4-epimerase (G4E), subgroup
5, extended (e) SDRs. This subgroup partially
conserves the characteristic active site tetrad and
NAD-binding motif of the extended SDRs, and has been
identified as possible UDP-glucose 4-epimerase (aka
UDP-galactose 4-epimerase), a homodimeric member of the
extended SDR family. UDP-glucose 4-epimerase catalyzes
the NAD-dependent conversion of UDP-galactose to
UDP-glucose, the final step in Leloir galactose
synthesis. Extended SDRs are distinct from classical
SDRs. In addition to the Rossmann fold (alpha/beta
folding pattern with a central beta-sheet) core region
typical of all SDRs, extended SDRs have a less
conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 300
Score = 25.4 bits (56), Expect = 3.8
Identities = 10/20 (50%), Positives = 13/20 (65%)
Query: 28 SVFVTGGTGFMGKVLVEKLL 47
V + GG GF+G LV+ LL
Sbjct: 1 RVLIVGGNGFIGSHLVDALL 20
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 25.1 bits (56), Expect = 3.8
Identities = 6/24 (25%), Positives = 13/24 (54%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLLR 48
Q ++ VTG + +G+ + +L
Sbjct: 4 QGKTALVTGASRGIGRAIALRLAA 27
>gnl|CDD|187535 cd02266, SDR, Short-chain dehydrogenases/reductases (SDR). SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a
central beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human prostaglandin
dehydrogenase (PGDH) numbering). In addition to the Tyr
and Lys, there is often an upstream Ser (Ser-138, PGDH
numbering) and/or an Asn (Asn-107, PGDH numbering)
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase (KR) domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical
SDRs have lost catalytic activity and/or have an
unusual NAD(P)-binding motif and missing or unusual
active site residues. Reactions catalyzed within the
SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase
activity, dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 186
Score = 25.2 bits (55), Expect = 3.8
Identities = 8/20 (40%), Positives = 11/20 (55%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
V VTGG+G +G + L
Sbjct: 1 VLVTGGSGGIGGAIARWLAS 20
>gnl|CDD|187557 cd05246, dTDP_GD_SDR_e, dTDP-D-glucose 4,6-dehydratase, extended
(e) SDRs. This subgroup contains dTDP-D-glucose
4,6-dehydratase and related proteins, members of the
extended-SDR family, with the characteristic Rossmann
fold core region, active site tetrad and NAD(P)-binding
motif. dTDP-D-glucose 4,6-dehydratase is closely
related to other sugar epimerases of the SDR family.
dTDP-D-dlucose 4,6,-dehydratase catalyzes the second of
four steps in the dTDP-L-rhamnose pathway (the
dehydration of dTDP-D-glucose to
dTDP-4-keto-6-deoxy-D-glucose) in the synthesis of
L-rhamnose, a cell wall component of some pathogenic
bacteria. In many gram negative bacteria, L-rhamnose is
an important constituent of lipopoylsaccharide
O-antigen. The larger N-terminal portion of
dTDP-D-Glucose 4,6-dehydratase forms a Rossmann fold
NAD-binding domain, while the C-terminus binds the
sugar substrate. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 315
Score = 25.2 bits (56), Expect = 3.9
Identities = 14/32 (43%), Positives = 16/32 (50%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYL 58
+ VTGG GF+G V LL P K I L
Sbjct: 1 MKILVTGGAGFIGSNFVRYLLNKYPDYKIINL 32
>gnl|CDD|215100 PLN00198, PLN00198, anthocyanidin reductase; Provisional.
Length = 338
Score = 25.2 bits (55), Expect = 4.6
Identities = 9/19 (47%), Positives = 14/19 (73%)
Query: 31 VTGGTGFMGKVLVEKLLRS 49
V GGTGF+ +L++ LL+
Sbjct: 14 VIGGTGFLASLLIKLLLQK 32
>gnl|CDD|181080 PRK07680, PRK07680, late competence protein ComER; Validated.
Length = 273
Score = 24.9 bits (55), Expect = 4.9
Identities = 9/16 (56%), Positives = 11/16 (68%)
Query: 34 GTGFMGKVLVEKLLRS 49
GTG MG +L+E L S
Sbjct: 7 GTGNMGTILIEAFLES 22
>gnl|CDD|239171 cd02770, MopB_DmsA-EC, This CD (MopB_DmsA-EC) includes the DmsA
enzyme of the dmsABC operon encoding the anaerobic
dimethylsulfoxide reductase (DMSOR) of Escherichia coli
and other related DMSOR-like enzymes. Unlike other
DMSOR-like enzymes, this group has a predicted
N-terminal iron-sulfur [4Fe-4S] cluster binding site.
These members belong to the molybdopterin_binding (MopB)
superfamily of proteins.
Length = 617
Score = 25.0 bits (55), Expect = 5.1
Identities = 12/34 (35%), Positives = 18/34 (52%), Gaps = 4/34 (11%)
Query: 8 TISSNMPAPSTPVSEFYQNRSVFVTGGTGFMGKV 41
TI+S + + E Y N +++V GTG G V
Sbjct: 86 TIASEL----KRIIEKYGNEAIYVNYGTGTYGGV 115
>gnl|CDD|224013 COG1088, RfbB, dTDP-D-glucose 4,6-dehydratase [Cell envelope
biogenesis, outer membrane].
Length = 340
Score = 24.9 bits (55), Expect = 5.4
Identities = 10/30 (33%), Positives = 14/30 (46%)
Query: 27 RSVFVTGGTGFMGKVLVEKLLRSCPGIKNI 56
+ VTGG GF+G V +L P +
Sbjct: 1 MKILVTGGAGFIGSNFVRYILNKHPDDHVV 30
>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 = 24.9 bits (55), Expect = 5.4
Identities = 5/23 (21%), Positives = 9/23 (39%)
Query: 26 NRSVFVTGGTGFMGKVLVEKLLR 48
+ VT + +G + L R
Sbjct: 1 GKVALVTAASSGIGLAIARALAR 23
>gnl|CDD|187549 cd05238, Gne_like_SDR_e, Escherichia coli Gne (a
nucleoside-diphosphate-sugar 4-epimerase)-like,
extended (e) SDRs. Nucleoside-diphosphate-sugar
4-epimerase has the characteristic active site tetrad
and NAD-binding motif of the extended SDR, and is
related to more specifically defined epimerases such as
UDP-glucose 4 epimerase (aka
UDP-galactose-4-epimerase), which catalyzes the
NAD-dependent conversion of UDP-galactose to
UDP-glucose, the final step in Leloir galactose
synthesis. This subgroup includes Escherichia coli
055:H7 Gne, a UDP-GlcNAc 4-epimerase, essential for O55
antigen synthesis. Extended SDRs are distinct from
classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 305
Score = 25.0 bits (55), Expect = 5.5
Identities = 11/24 (45%), Positives = 16/24 (66%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCP 51
V +TG +GF+G+ L E+LL P
Sbjct: 2 KVLITGASGFVGQRLAERLLSDVP 25
>gnl|CDD|99786 cd06189, flavin_oxioreductase, NAD(P)H dependent flavin
oxidoreductases use flavin as a substrate in mediating
electron transfer from iron complexes or iron proteins.
Structurally similar to ferredoxin reductases, but with
only 15% sequence identity, flavin reductases reduce
FAD, FMN, or riboflavin via NAD(P)H. Flavin is used as a
substrate, rather than a tightly bound prosthetic group
as in flavoenzymes; weaker binding is due to the absence
of a binding site for the AMP moeity of FAD.
Length = 224
Score = 24.8 bits (55), Expect = 5.7
Identities = 11/30 (36%), Positives = 16/30 (53%), Gaps = 5/30 (16%)
Query: 23 FYQNRS----VFVTGGTGFMG-KVLVEKLL 47
F + S + + GGTGF K ++E LL
Sbjct: 92 FLREDSDRPLILIAGGTGFAPIKSILEHLL 121
>gnl|CDD|215146 PLN02260, PLN02260, probable rhamnose biosynthetic enzyme.
Length = 668
Score = 24.7 bits (54), Expect = 6.2
Identities = 10/35 (28%), Positives = 21/35 (60%)
Query: 24 YQNRSVFVTGGTGFMGKVLVEKLLRSCPGIKNIYL 58
Y+ +++ +TG GF+ + +L+R+ P K + L
Sbjct: 4 YEPKNILITGAAGFIASHVANRLIRNYPDYKIVVL 38
>gnl|CDD|223928 COG0859, RfaF, ADP-heptose:LPS heptosyltransferase [Cell envelope
biogenesis, outer membrane].
Length = 334
Score = 24.6 bits (54), Expect = 6.3
Identities = 12/37 (32%), Positives = 19/37 (51%), Gaps = 4/37 (10%)
Query: 41 VLVEK----LLRSCPGIKNIYLLMRPKHGQDINGRLA 73
VLV K +L+ P I + ++ + K G + RLA
Sbjct: 36 VLVPKGFAPILKLNPEIDKVIIIDKKKKGLGLKERLA 72
>gnl|CDD|182094 PRK09821, PRK09821, putative transporter; Provisional.
Length = 454
Score = 24.6 bits (54), Expect = 6.4
Identities = 10/16 (62%), Positives = 11/16 (68%)
Query: 29 VFVTGGTGFMGKVLVE 44
+ VTG G GKVLVE
Sbjct: 318 ILVTGAGGVFGKVLVE 333
>gnl|CDD|216304 pfam01113, DapB_N, Dihydrodipicolinate reductase, N-terminus.
Dihydrodipicolinate reductase (DapB) reduces the
alpha,beta-unsaturated cyclic imine,
dihydro-dipicolinate. This reaction is the second
committed step in the biosynthesis of L-lysine and its
precursor meso-diaminopimelate, which are critical for
both protein and cell wall biosynthesis. The N-terminal
domain of DapB binds the dinucleotide NADPH.
Length = 122
Score = 24.5 bits (54), Expect = 6.5
Identities = 6/14 (42%), Positives = 10/14 (71%)
Query: 31 VTGGTGFMGKVLVE 44
V G +G MG+ L++
Sbjct: 5 VVGASGRMGRELIK 18
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 24.7 bits (54), Expect = 6.6
Identities = 7/26 (26%), Positives = 17/26 (65%)
Query: 20 VSEFYQNRSVFVTGGTGFMGKVLVEK 45
+S + +++ ++GGT +GK +V +
Sbjct: 2 MSNEMKGKTLVISGGTRGIGKAIVYE 27
>gnl|CDD|187563 cd05253, UDP_GE_SDE_e, UDP glucuronic acid epimerase, extended
(e) SDRs. This subgroup contains UDP-D-glucuronic acid
4-epimerase, an extended SDR, which catalyzes the
conversion of UDP-alpha-D-glucuronic acid to
UDP-alpha-D-galacturonic acid. This group has the SDR's
canonical catalytic tetrad and the TGxxGxxG NAD-binding
motif of the extended SDRs. Extended SDRs are distinct
from classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately
100 amino acids. Extended SDRs are a diverse collection
of proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold, an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Sequence
identity between different SDR enzymes is typically in
the 15-30% range; they catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase numbering). In addition to the Tyr and
Lys, there is often an upstream Ser and/or an Asn,
contributing to the active site; while substrate
binding is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Atypical SDRs generally lack the
catalytic residues characteristic of the SDRs, and
their glycine-rich NAD(P)-binding motif is often
different from the forms normally seen in classical or
extended SDRs. Complex (multidomain) SDRs such as
ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 332
Score = 24.6 bits (54), Expect = 6.9
Identities = 8/20 (40%), Positives = 13/20 (65%)
Query: 29 VFVTGGTGFMGKVLVEKLLR 48
+ VTG GF+G + ++LL
Sbjct: 3 ILVTGAAGFIGFHVAKRLLE 22
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 24.6 bits (54), Expect = 6.9
Identities = 9/23 (39%), Positives = 16/23 (69%)
Query: 25 QNRSVFVTGGTGFMGKVLVEKLL 47
Q + + VTGG+ +G +V++LL
Sbjct: 8 QGKIIIVTGGSSGIGLAIVKELL 30
>gnl|CDD|130026 TIGR00951, 2A43, Lysosomal Cystine Transporter. [Transport and
binding proteins, Amino acids, peptides and amines].
Length = 220
Score = 24.4 bits (53), Expect = 7.3
Identities = 9/29 (31%), Positives = 11/29 (37%)
Query: 35 TGFMGKVLVEKLLRSCPGIKNIYLLMRPK 63
GF V+ L C I N + L P
Sbjct: 45 VGFTAYVIFNFLQLYCWSITNEFPLSSPG 73
>gnl|CDD|237079 PRK12367, PRK12367, short chain dehydrogenase; Provisional.
Length = 245
Score = 24.6 bits (54), Expect = 7.7
Identities = 9/34 (26%), Positives = 16/34 (47%)
Query: 13 MPAPSTPVSEFYQNRSVFVTGGTGFMGKVLVEKL 46
MP +Q + + +TG +G +GK L +
Sbjct: 1 MPQADPMAQSTWQGKRIGITGASGALGKALTKAF 34
>gnl|CDD|187652 cd08948, 5beta-POR_like_SDR_a, progesterone 5-beta-reductase-like
proteins (5beta-POR), atypical (a) SDRs. 5beta-POR
catalyzes the reduction of progesterone to
5beta-pregnane-3,20-dione in Digitalis plants. This
subgroup of atypical-extended SDRs, shares the
structure of an extended SDR, but has a different
glycine-rich nucleotide binding motif (GXXGXXG) and
lacks the YXXXK active site motif of classical and
extended SDRs. Tyr-179 and Lys 147 are present in the
active site, but not in the usual SDR configuration.
Given these differences, it has been proposed that this
subfamily represents a new SDR class. Other atypical
SDRs include biliverdin IX beta reductase (BVR-B,aka
flavin reductase), NMRa (a negative transcriptional
regulator of various fungi), phenylcoumaran benzylic
ether and pinoresinol-lariciresinol reductases,
phenylpropene synthases, eugenol synthase,
triphenylmethane reductase, isoflavone reductases, and
others. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving
as a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton
relay involving the conserved Tyr and Lys, a water
molecule stabilized by Asn, and nicotinamide. In
addition to the Rossmann fold core region typical of
all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids,
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.
Length = 308
Score = 24.5 bits (54), Expect = 8.2
Identities = 13/34 (38%), Positives = 14/34 (41%)
Query: 28 SVFVTGGTGFMGKVLVEKLLRSCPGIKNIYLLMR 61
V G TG G LVE LL +Y L R
Sbjct: 1 VALVVGATGISGWALVEHLLSDPGTWWKVYGLSR 34
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.318 0.137 0.415
Gapped
Lambda K H
0.267 0.0845 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 4,271,498
Number of extensions: 336268
Number of successful extensions: 536
Number of sequences better than 10.0: 1
Number of HSP's gapped: 534
Number of HSP's successfully gapped: 122
Length of query: 82
Length of database: 10,937,602
Length adjustment: 51
Effective length of query: 31
Effective length of database: 8,675,548
Effective search space: 268941988
Effective search space used: 268941988
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 53 (24.0 bits)