RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy4246
(328 letters)
>gnl|CDD|187669 cd09809, human_WWOX_like_SDR_c-like, human WWOX (WW
domain-containing oxidoreductase)-like, classical
(c)-like SDRs. Classical-like SDR domain of human WWOX
and related proteins. Proteins in this subfamily share
the glycine-rich NAD-binding motif of the classical
SDRs, have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 284
Score = 168 bits (427), Expect = 2e-50
Identities = 71/126 (56%), Positives = 92/126 (73%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TGAN+GIGFETARS ALHG VILACR++ +A+ A+S+IL E A+ AM L+L
Sbjct: 4 IIITGANSGIGFETARSFALHGAHVILACRNMSRASAAVSRILEEWHKARVEAMTLDLAS 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLENA 245
L+SV++FAE ++ K L++LV NA VF L ++ TEDG ETTFQVNHL HFYL LE+
Sbjct: 64 LRSVQRFAEAFKAKNSPLHVLVCNAAVFALPWTLTEDGLETTFQVNHLGHFYLVQLLEDV 123
Query: 246 LIKGAK 251
L + A
Sbjct: 124 LRRSAP 129
Score = 84.2 bits (208), Expect = 1e-18
Identities = 33/55 (60%), Positives = 41/55 (74%), Gaps = 1/55 (1%)
Query: 256 QQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEALATKLWKLSEEMIQ 310
QQGAAT++YCAT+ +L + G YFNNC RC PS AQ EA A +LW+LSE +IQ
Sbjct: 230 QQGAATTVYCATAPELE-GLGGMYFNNCFRCLPSPEAQSEATAQQLWELSERLIQ 283
>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 = 162 bits (413), Expect = 2e-48
Identities = 55/121 (45%), Positives = 78/121 (64%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TGAN+GIG ETAR LA G VI+ACR+ +K +A ++I E +A+ ++L+L
Sbjct: 4 VVITGANSGIGKETARELAKRGAHVIIACRNEEKGEEAAAEIKKETGNAKVEVIQLDLSS 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLENA 245
L SV++FAEE+ +F L+IL+ NAG+ T+DGFE F VN+L HF LT L
Sbjct: 64 LASVRQFAEEFLARFPRLDILINNAGIMAPPRRLTKDGFELQFAVNYLGHFLLTNLLLPV 123
Query: 246 L 246
L
Sbjct: 124 L 124
Score = 56.5 bits (137), Expect = 4e-09
Identities = 24/46 (52%), Positives = 29/46 (63%), Gaps = 1/46 (2%)
Query: 257 QGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEALATKLW 302
QGA T++Y ATS +L VSG YF++C S A DE LA KLW
Sbjct: 225 QGAQTALYAATSPELEG-VSGKYFSDCKIKMSSSEALDEELAEKLW 269
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 136 bits (345), Expect = 5e-38
Identities = 52/117 (44%), Positives = 69/117 (58%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGANTG+G+ETA +LA G V+LA R+LDK A ++I P A EL+L
Sbjct: 19 AVVTGANTGLGYETAAALAAKGAHVVLAVRNLDKGKAAAARITAATPGADVTLQELDLTS 78
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
L SV+ A+ + + +++L+ NAGV T DGFE F NHL HF LT L
Sbjct: 79 LASVRAAADALRAAYPRIDLLINNAGVMYTPKQTTADGFELQFGTNHLGHFALTGLL 135
>gnl|CDD|212495 cd09807, retinol-DH_like_SDR_c, retinol dehydrogenases
(retinol-DHs), classical (c) SDRs. Classical SDR-like
subgroup containing retinol-DHs and related proteins.
Retinol is processed by a medium chain alcohol
dehydrogenase followed by retinol-DHs. Proteins in this
subfamily share the glycine-rich NAD-binding motif of
the classical SDRs, have a partial match to the
canonical active site tetrad, but lack the typical
active site Ser. This subgroup includes the human
proteins: retinol dehydrogenase -12, -13 ,and -14. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 274
Score = 126 bits (319), Expect = 2e-34
Identities = 60/124 (48%), Positives = 79/124 (63%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
I+TGANTGIG ETAR LA G RVI+ACR + K +A ++I + + + I L+L L
Sbjct: 5 IITGANTGIGKETARELARRGARVIMACRDMAKCEEAAAEIRRDTLNHEVIVRHLDLASL 64
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLENAL 246
KS++ FA E+ + L++L+ NAGV +S TEDGFE F VNHL HF LT L + L
Sbjct: 65 KSIRAFAAEFLAEEDRLDVLINNAGVMRCPYSKTEDGFEMQFGVNHLGHFLLTNLLLDLL 124
Query: 247 IKGA 250
K A
Sbjct: 125 KKSA 128
Score = 54.0 bits (130), Expect = 2e-08
Identities = 22/49 (44%), Positives = 31/49 (63%), Gaps = 1/49 (2%)
Query: 257 QGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEALATKLWKLS 305
+GA TSIY A + +L VSG YF++C P+ A DE A +LW++S
Sbjct: 227 EGAQTSIYLALAEELE-GVSGKYFSDCKLKEPAPEAMDEETARRLWEIS 274
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 121 bits (306), Expect = 3e-32
Identities = 56/142 (39%), Positives = 77/142 (54%), Gaps = 6/142 (4%)
Query: 109 STKALQILHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKIL 168
++ A ++L G DLS AIVTG +G+G ET R+LA G VI+ R D A +A++ I
Sbjct: 12 ASTAEEVLAGHDLSGKTAIVTGGYSGLGLETTRALAQAGAHVIVPARRPDVAREALAGI- 70
Query: 169 TEKPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTF 228
+ L+L L+SV+ FAE + R ++IL+ NAGV + DG+E F
Sbjct: 71 -DGVEVV----MLDLADLESVRAFAERFLDSGRRIDILINNAGVMACPETRVGDGWEAQF 125
Query: 229 QVNHLAHFYLTLQLENALIKGA 250
NHL HF L L AL GA
Sbjct: 126 ATNHLGHFALVNLLWPALAAGA 147
Score = 35.4 bits (82), Expect = 0.031
Identities = 20/63 (31%), Positives = 28/63 (44%), Gaps = 11/63 (17%)
Query: 256 QQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKA----------AQDEALATKLWKLS 305
QGAAT ++ ATS L+ + G Y +C P+ A D A +LW LS
Sbjct: 248 AQGAATQVWAATSPQLA-GMGGLYCEDCDIAEPTPKDAPWSGVRPHAIDPEAAARLWALS 306
Query: 306 EEM 308
+
Sbjct: 307 AAL 309
>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 = 103 bits (260), Expect = 2e-26
Identities = 40/152 (26%), Positives = 68/152 (44%), Gaps = 13/152 (8%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA++GIG AR LA G +V+LA R+ + + E +A++ ++
Sbjct: 1 ALVTGASSGIGRAIARRLAREGAKVVLADRNEEALAEL---AAIEALGGNAVAVQADVSD 57
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFYLTLQLE 243
+ V+ EE ++F L+ILV NAG+ G T++ ++ VN F LT
Sbjct: 58 EEDVEALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNLTGVFLLTRAAL 117
Query: 244 NALIKGAK--------LFARQQGAATSIYCAT 267
+ K + + + Y A+
Sbjct: 118 PHMKKQGGGRIVNISSVAGLRPLPGQAAYAAS 149
>gnl|CDD|187670 cd09810, LPOR_like_SDR_c_like, light-dependent protochlorophyllide
reductase (LPOR)-like, classical (c)-like SDRs.
Classical SDR-like subgroup containing LPOR and related
proteins. Protochlorophyllide (Pchlide) reductases act
in chlorophyll biosynthesis. There are distinct enzymes
that catalyze Pchlide reduction in light or dark
conditions. Light-dependent reduction is via an
NADP-dependent SDR, LPOR. Proteins in this subfamily
share the glycine-rich NAD-binding motif of the
classical SDRs, have a partial match to the canonical
active site tetrad, but lack the typical active site
Ser. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 311
Score = 102 bits (255), Expect = 5e-25
Identities = 44/119 (36%), Positives = 65/119 (54%), Gaps = 6/119 (5%)
Query: 125 NAIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAMELNL 183
++TGA++G+G A++LA G V++ACR KA A ++ K S + +L
Sbjct: 3 TVVITGASSGLGLAAAKALARRGEWHVVMACRDFLKAEQAAQEVGMPKDSYSV--LHCDL 60
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAHFYLT 239
L SV++F + +++ R L+ LV NA V+ T DGFE T VNHL HF LT
Sbjct: 61 ASLDSVRQFVDNFRRTGRPLDALVCNAAVYLPTAKEPRFTADGFELTVGVNHLGHFLLT 119
Score = 29.8 bits (67), Expect = 2.0
Identities = 15/45 (33%), Positives = 25/45 (55%), Gaps = 5/45 (11%)
Query: 270 DLSLPVSGSYFNN-----CCRCPPSKAAQDEALATKLWKLSEEMI 309
D SL VSG Y++ S+ + D+ A KLW++SE+++
Sbjct: 265 DPSLGVSGVYWSWGKASGSFENQSSQESSDDEKARKLWEISEKLV 309
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 100 bits (252), Expect = 2e-24
Identities = 51/125 (40%), Positives = 66/125 (52%), Gaps = 1/125 (0%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
DLS A+VTGA+ G+G AR LA G VIL R+ K A++ I T P A+
Sbjct: 10 PDLSGKRAVVTGASDGLGLGLARRLAAAGAEVILPVRNRAKGEAAVAAIRTAVPDAKLSL 69
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH-TEDGFETTFQVNHLAHFY 237
L+L L SV E+ + + R +++L+ NAGV T DGFE F NHL HF
Sbjct: 70 RALDLSSLASVAALGEQLRAEGRPIHLLINNAGVMTPPERQTTADGFELQFGTNHLGHFA 129
Query: 238 LTLQL 242
LT L
Sbjct: 130 LTAHL 134
>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 = 93.0 bits (231), Expect = 5e-22
Identities = 44/158 (27%), Positives = 78/158 (49%), Gaps = 10/158 (6%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKAN-DAISKILTEKPSAQCIA 178
DLS A+VTGA++GIG AR+LA G RV++A R ++ +A++ + E + A
Sbjct: 2 DLSGKVALVTGASSGIGRAIARALAREGARVVVAARRSEEEAAEALAAAIKEAGGGRAAA 61
Query: 179 MELNL-CRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH---TEDGFETTFQVNHLA 234
+ ++ +SV+ +++F ++ILV NAG+ G TE+ ++ VN L
Sbjct: 62 VAADVSDDEESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLG 121
Query: 235 HFYLT-----LQLENALIKGAKLFARQQGAATSIYCAT 267
F LT L + ++ + + + Y A+
Sbjct: 122 AFLLTRAALPLMKKQRIVNISSVAGLGGPPGQAAYAAS 159
>gnl|CDD|187585 cd05324, carb_red_PTCR-like_SDR_c, Porcine testicular carbonyl
reductase (PTCR)-like, classical (c) SDRs. PTCR is a
classical SDR which catalyzes the NADPH-dependent
reduction of ketones on steroids and prostaglandins.
Unlike most SDRs, PTCR functions as a monomer. This
subgroup also includes human carbonyl reductase 1 (CBR1)
and CBR3. CBR1 is an NADPH-dependent SDR with broad
substrate specificity and may be responsible for the in
vivo reduction of quinones, prostaglandins, and other
carbonyl-containing compounds. In addition it includes
poppy NADPH-dependent salutaridine reductase which
catalyzes the stereospecific reduction of salutaridine
to 7(S)-salutaridinol in the biosynthesis of morphine,
and Arabidopsis SDR1,a menthone reductase, which
catalyzes the reduction of menthone to neomenthol, a
compound with antimicrobial activity; SDR1 can also
carry out neomenthol oxidation. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering). In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 225
Score = 90.4 bits (225), Expect = 2e-21
Identities = 43/127 (33%), Positives = 68/127 (53%), Gaps = 10/127 (7%)
Query: 125 NAIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAMELNL 183
A+VTGAN GIGFE R LA G VIL R +++ A+ K+ E S + +L++
Sbjct: 2 VALVTGANRGIGFEIVRQLAKSGPGTVILTARDVERGQAAVEKLRAEGLSVRFH--QLDV 59
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF---SHTEDGFETTFQVNHLAHFYLTL 240
S++ A+ ++K+ L+ILV NAG+ GF + T + T + N F+ T+
Sbjct: 60 TDDASIEAAADFVEEKYGGLDILVNNAGIAFKGFDDSTPTREQARETMKTN----FFGTV 115
Query: 241 QLENALI 247
+ AL+
Sbjct: 116 DVTQALL 122
>gnl|CDD|177654 PLN00015, PLN00015, protochlorophyllide reductase.
Length = 308
Score = 87.5 bits (217), Expect = 1e-19
Identities = 46/120 (38%), Positives = 67/120 (55%), Gaps = 6/120 (5%)
Query: 127 IVTGANTGIGFETARSLALHG-CRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TGA++G+G TA++LA G V++ACR KA A K S M L+L
Sbjct: 1 IITGASSGLGLATAKALAETGKWHVVMACRDFLKAERAAKSAGMPKDS--YTVMHLDLAS 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
L SV++F + +++ R L++LV NA V+ + T DGFE + NHL HF L+ L
Sbjct: 59 LDSVRQFVDNFRRSGRPLDVLVCNAAVYLPTAKEPTFTADGFELSVGTNHLGHFLLSRLL 118
Score = 30.8 bits (70), Expect = 0.79
Identities = 16/49 (32%), Positives = 23/49 (46%), Gaps = 13/49 (26%)
Query: 270 DLSLPVSGSY---------FNNCCRCPPSKAAQDEALATKLWKLSEEMI 309
D SL SG Y F N S+ A D A K+W++SE+++
Sbjct: 263 DPSLTKSGVYWSWNGGSASFEN----QLSQEASDAEKAKKVWEISEKLV 307
>gnl|CDD|180983 PRK07453, PRK07453, protochlorophyllide oxidoreductase; Validated.
Length = 322
Score = 87.4 bits (217), Expect = 1e-19
Identities = 42/123 (34%), Positives = 68/123 (55%), Gaps = 6/123 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TGA++G+G A++LA G VI+ACR+L KA A ++ P + ++L
Sbjct: 9 VIITGASSGVGLYAAKALAKRGWHVIMACRNLKKAEAAAQEL--GIPPDSYTIIHIDLGD 66
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFS---HTEDGFETTFQVNHLAHFYL-TLQ 241
L SV++F ++++ + L+ LV NA V+ + G+E + NHL HF L L
Sbjct: 67 LDSVRRFVDDFRALGKPLDALVCNAAVYMPLLKEPLRSPQGYELSMATNHLGHFLLCNLL 126
Query: 242 LEN 244
LE+
Sbjct: 127 LED 129
>gnl|CDD|200089 TIGR01289, LPOR, light-dependent protochlorophyllide reductase.
This model represents the light-dependent,
NADPH-dependent form of protochlorophyllide reductase.
It belongs to the short chain alcohol dehydrogenase
family, in contrast to the nitrogenase-related
light-independent form [Biosynthesis of cofactors,
prosthetic groups, and carriers, Chlorophyll and
bacteriochlorphyll].
Length = 314
Score = 80.7 bits (199), Expect = 3e-17
Identities = 47/124 (37%), Positives = 68/124 (54%), Gaps = 7/124 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
I+TGA++G+G A++LA G VI+ACR KA A + K S M L+L
Sbjct: 6 VIITGASSGLGLYAAKALAATGEWHVIMACRDFLKAEQAAKSLGMPKDSYTI--MHLDLG 63
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH---TEDGFETTFQVNHLAHFYLT-L 240
L SV++F +++++ R L+ LV NA V+ T DGFE + NHL HF L L
Sbjct: 64 SLDSVRQFVQQFRESGRPLDALVCNAAVYFPTAKEPRFTADGFELSVGTNHLGHFLLCNL 123
Query: 241 QLEN 244
L++
Sbjct: 124 LLDD 127
>gnl|CDD|187594 cd05333, BKR_SDR_c, beta-Keto acyl carrier protein reductase (BKR),
involved in Type II FAS, classical (c) SDRs. This
subgroup includes the Escherichai coli K12 BKR, FabG.
BKR catalyzes the NADPH-dependent reduction of ACP in
the first reductive step of de novo fatty acid synthesis
(FAS). FAS consists of four elongation steps, which are
repeated to extend the fatty acid chain through the
addition of two-carbo units from malonyl acyl-carrier
protein (ACP): condensation, reduction, dehydration, and
a final reduction. Type II FAS, typical of plants and
many bacteria, maintains these activities on discrete
polypeptides, while type I FAS utilizes one or two
multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) NAD(P)(H) binding
region and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H) binding
pattern: TGxxxGxG in classical SDRs. Extended SDRs have
additional elements in the C-terminal region, and
typically have a TGXXGXXG cofactor binding motif.
Complex (multidomain) SDRs such as ketoreductase domains
of fatty acid synthase have a GGXGXXG NAD(P) binding
motif and an altered active site motif (YXXXN). Fungal
type type ketoacyl reductases have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P) binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr-151 and
Lys-155, and well as Asn-111 (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 240
Score = 78.4 bits (194), Expect = 7e-17
Identities = 36/125 (28%), Positives = 64/125 (51%), Gaps = 4/125 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA+ GIG A LA G +V + RS + A + + +I + A+E ++
Sbjct: 3 ALVTGASRGIGRAIALRLAAEGAKVAVTDRSEEAAAETVEEI--KALGGNAAALEADVSD 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFYLTLQLE 243
++V+ E+ + +F ++ILV NAG+ +E+ ++ VN F +T +
Sbjct: 61 REAVEALVEKVEAEFGPVDILVNNAGITRDNLLMRMSEEDWDAVINVNLTGVFNVTQAVI 120
Query: 244 NALIK 248
A+IK
Sbjct: 121 RAMIK 125
>gnl|CDD|187668 cd09808, DHRS-12_like_SDR_c-like, human dehydrogenase/reductase SDR
family member (DHRS)-12/FLJ13639-like, classical
(c)-like SDRs. Classical SDR-like subgroup containing
human DHRS-12/FLJ13639, the 36K protein of zebrafish CNS
myelin, and related proteins. DHRS-12/FLJ13639 is
expressed in neurons and oligodendrocytes in the human
cerebral cortex. Proteins in this subgroup share the
glycine-rich NAD-binding motif of the classical SDRs,
have a partial match to the canonical active site
tetrad, but lack the typical active site Ser. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 255
Score = 78.4 bits (193), Expect = 7e-17
Identities = 41/122 (33%), Positives = 65/122 (53%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TGAN+GIG A ++A G V + CR+ +A +A +I TE + +++
Sbjct: 5 LITGANSGIGKAAALAIAKRGGTVHMVCRNQTRAEEARKEIETESGNQNIFLHIVDMSDP 64
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLENAL 246
K V +F EE++++ + L++L+ NAG TEDG E F N L + LT L L
Sbjct: 65 KQVWEFVEEFKEEGKKLHVLINNAGCMVNKRELTEDGLEKNFATNTLGTYILTTHLIPVL 124
Query: 247 IK 248
K
Sbjct: 125 EK 126
>gnl|CDD|187593 cd05332, 11beta-HSD1_like_SDR_c, 11beta-hydroxysteroid
dehydrogenase type 1 (11beta-HSD1)-like, classical (c)
SDRs. Human 11beta_HSD1 catalyzes the NADP(H)-dependent
interconversion of cortisone and cortisol. This subgroup
also includes human dehydrogenase/reductase SDR family
member 7C (DHRS7C) and DHRS7B. These proteins have the
GxxxGxG nucleotide binding motif and S-Y-K catalytic
triad characteristic of the SDRs, but have an atypical
C-terminal domain that contributes to homodimerization
contacts. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 77.2 bits (191), Expect = 2e-16
Identities = 37/124 (29%), Positives = 61/124 (49%), Gaps = 3/124 (2%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
I+TGA++GIG E A LA G R++L+ R ++ + S+ E + + L++ L
Sbjct: 7 IITGASSGIGEELAYHLARLGARLVLSARREERLEEVKSE-CLELGAPSPHVVPLDMSDL 65
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFYLTLQLEN 244
+ ++ EE K F L+IL+ NAG+ H + D +VN+ LT
Sbjct: 66 EDAEQVVEEALKLFGGLDILINNAGISMRSLFHDTSIDVDRKIMEVNYFGPVALTKAALP 125
Query: 245 ALIK 248
LI+
Sbjct: 126 HLIE 129
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 76.9 bits (190), Expect = 2e-16
Identities = 41/164 (25%), Positives = 72/164 (43%), Gaps = 26/164 (15%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TGA++GIG TAR+LA G +V+LA R ++ + + E + +A+
Sbjct: 4 LKGKVALITGASSGIGEATARALAEAGAKVVLAARREER----LEALADEIGAGAALALA 59
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFYL 238
L++ +V+ E ++F ++ILV NAG+ D ++ N
Sbjct: 60 LDVTDRAAVEAAIEALPEEFGRIDILVNNAGLALGDPLDEADLDDWDRMIDTNVKGLLNG 119
Query: 239 TLQLENALIKGAKLFARQQG--------AAT------SIYCATS 268
T A++ G + R+ G A ++Y AT
Sbjct: 120 T----RAVLPG--MVERKSGHIINLGSIAGRYPYPGGAVYGATK 157
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 75.7 bits (187), Expect = 7e-16
Identities = 42/159 (26%), Positives = 74/159 (46%), Gaps = 13/159 (8%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+ A++TGA++GIG E A+ LA G +IL R DK +A++K L +K + +
Sbjct: 3 PMKGKTALITGASSGIGAELAKQLARRGYNLILVARREDKL-EALAKELEDKTGVEVEVI 61
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGL--GFS-HTEDGFETTFQVN----- 231
+L +++++ +E +++ +++LV NAG FG F + D E Q+N
Sbjct: 62 PADLSDPEALERLEDELKERGGPIDVLVNNAG-FGTFGPFLELSLDEEEEMIQLNILALT 120
Query: 232 HLAHFYLTLQLEN---ALIKGAKLFARQQGAATSIYCAT 267
L L +E +I ++Y AT
Sbjct: 121 RLTKAVLPGMVERGAGHIINIGSAAGLIPTPYMAVYSAT 159
>gnl|CDD|187645 cd08941, 3KS_SDR_c, 3-keto steroid reductase, classical (c) SDRs.
3-keto steroid reductase (in concert with other enzymes)
catalyzes NADP-dependent sterol C-4 demethylation, as
part of steroid biosynthesis. 3-keto reductase is a
classical SDR, with a well conserved canonical active
site tetrad and fairly well conserved characteristic
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 290
Score = 74.7 bits (184), Expect = 3e-15
Identities = 47/163 (28%), Positives = 66/163 (40%), Gaps = 42/163 (25%)
Query: 126 AIVTGANTGIGFETA-RSLAL----HGCRVILACRSLDKANDAISKILTEKPSA--QCIA 178
+VTGAN+G+G R LA +ILACR+L +A A +L P A
Sbjct: 4 VLVTGANSGLGLAICERLLAEDDENPELTLILACRNLQRAEAACRALLASHPDARVVFDY 63
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV-----------------FGLGF---- 217
+ ++L + SV A+E +K++ L+ L LNAG+ L
Sbjct: 64 VLVDLSNMVSVFAAAKELKKRYPRLDYLYLNAGIMPNPGIDWIGAIKEVLTNPLFAVTNP 123
Query: 218 --------------SHTEDGFETTFQVNHLAHFYLTLQLENAL 246
TEDG FQ N H+YL +LE L
Sbjct: 124 TYKIQAEGLLSQGDKATEDGLGEVFQTNVFGHYYLIRELEPLL 166
>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 = 72.6 bits (179), Expect = 7e-15
Identities = 34/140 (24%), Positives = 64/140 (45%), Gaps = 8/140 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A +TG TGIG A++ A G V +A R + A +I + + ++ ++
Sbjct: 6 AFITGGGTGIGKAIAKAFAELGASVAIAGRKPEVLEAAAEEI-SSATGGRAHPIQCDVRD 64
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNA-GVFGLGFSH-TEDGFETTFQVNHLAHFYLTLQLE 243
++V+ +E K+F ++IL+ NA G F + +GF+T ++ F T +
Sbjct: 65 PEAVEAAVDETLKEFGKIDILINNAAGNFLAPAESLSPNGFKTVIDIDLNGTFNTTKAVG 124
Query: 244 NALIKGAKLFARQQGAATSI 263
LI+ + G+ +I
Sbjct: 125 KRLIEA-----KHGGSILNI 139
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 71.5 bits (176), Expect = 2e-14
Identities = 38/126 (30%), Positives = 55/126 (43%), Gaps = 5/126 (3%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
RDL A+VTGA GIG A LA G VI+ D A + A+ A
Sbjct: 2 RDLEGRVALVTGAARGIGRAIAVRLAADGAEVIVVDICGDDAAATAELVEAAGGKAR--A 59
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHF 236
++++ ++K + F L+ILV NAG+F L ++ +E VN L
Sbjct: 60 RQVDVRDRAALKAAVAAGVEDFGRLDILVANAGIFPLTPFAEMDDEQWERVIDVN-LTGT 118
Query: 237 YLTLQL 242
+L Q
Sbjct: 119 FLLTQA 124
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 71.3 bits (176), Expect = 2e-14
Identities = 30/124 (24%), Positives = 57/124 (45%), Gaps = 5/124 (4%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A+VTGA+ GIG A LA G +V++ + + A +++ A+ +
Sbjct: 2 SLQGKTALVTGASRGIGRAIALRLAADGAKVVIYDSNEEAAEALAAELRAAGGEARVLV- 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFY 237
++ +V+ E + F +L+ILV NAG+ +E+ ++ VN L +
Sbjct: 61 -FDVSDEAAVRALIEAAVEAFGALDILVNNAGITRDALLPRMSEEDWDRVIDVN-LTGTF 118
Query: 238 LTLQ 241
++
Sbjct: 119 NVVR 122
>gnl|CDD|233590 TIGR01830, 3oxo_ACP_reduc, 3-oxoacyl-(acyl-carrier-protein)
reductase. This model represents 3-oxoacyl-[ACP]
reductase, also called 3-ketoacyl-acyl carrier protein
reductase, an enzyme of fatty acid biosynthesis [Fatty
acid and phospholipid metabolism, Biosynthesis].
Length = 239
Score = 71.1 bits (175), Expect = 2e-14
Identities = 33/116 (28%), Positives = 57/116 (49%), Gaps = 3/116 (2%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA+ GIG A LA G +VI+ RS ++ + + + L + + + ++
Sbjct: 1 ALVTGASRGIGRAIALKLAKEGAKVIITYRSSEEGAEEVVEELKAYG-VKALGVVCDVSD 59
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNHLAHFYLT 239
+ VK EE +++ ++ILV NAG+ L E+ ++ N F LT
Sbjct: 60 REDVKAVVEEIEEELGPIDILVNNAGITRDNLLMRMKEEDWDAVIDTNLTGVFNLT 115
>gnl|CDD|187605 cd05347, Ga5DH-like_SDR_c, gluconate 5-dehydrogenase (Ga5DH)-like,
classical (c) SDRs. Ga5DH catalyzes the NADP-dependent
conversion of carbon source D-gluconate and
5-keto-D-gluconate. This SDR subgroup has a classical
Gly-rich NAD(P)-binding motif and a conserved active
site tetrad pattern. However, it has been proposed that
Arg104 (Streptococcus suis Ga5DH numbering), as well as
an active site Ca2+, play a critical role in catalysis.
In addition to Ga5DHs this subgroup contains Erwinia
chrysanthemi KduD which is involved in pectin
degradation, and is a putative
2,5-diketo-3-deoxygluconate dehydrogenase. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107,15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 248
Score = 69.7 bits (171), Expect = 9e-14
Identities = 43/161 (26%), Positives = 70/161 (43%), Gaps = 18/161 (11%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A+VTGA+ GIGF A LA G +++ R+ +KA +A I EK + A
Sbjct: 2 SLKGKVALVTGASRGIGFGIASGLAEAGANIVINSRNEEKAEEAQQLI--EKEGVEATAF 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH-----TEDGFETTFQVNHLA 234
++ +++K E ++ F ++ILV NA G+ H E + VN
Sbjct: 60 TCDVSDEEAIKAAVEAIEEDFGKIDILVNNA---GIIRRHPAEEFPEAEWRDVIDVNLNG 116
Query: 235 HFYLTLQLENALIK--GAK------LFARQQGAATSIYCAT 267
F+++ + +IK K L + G Y A+
Sbjct: 117 VFFVSQAVARHMIKQGHGKIINICSLLSELGGPPVPAYAAS 157
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 67.4 bits (165), Expect = 5e-13
Identities = 44/158 (27%), Positives = 71/158 (44%), Gaps = 16/158 (10%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TGA +GIG A G RV++A +A A +I IA+
Sbjct: 4 LQGKVALLTGAASGIGEAVAERYLAEGARVVIADIKPARARLAALEI-----GPAAIAVS 58
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYL 238
L++ R S+ + ++F ++IL NA +F + + D ++ F VN F+L
Sbjct: 59 LDVTRQDSIDRIVAAAVERFGGIDILFNNAALFDMAPILDISRDSYDRLFAVNVKGLFFL 118
Query: 239 TLQLENALI---KGAKL--FARQQG----AATSIYCAT 267
+ ++ +G K+ A Q G A S YCAT
Sbjct: 119 MQAVARHMVEQGRGGKIINMASQAGRRGEALVSHYCAT 156
>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 = 67.3 bits (165), Expect = 6e-13
Identities = 32/121 (26%), Positives = 56/121 (46%), Gaps = 12/121 (9%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VT A++GIG AR+LA G RV + R+ + A S++ A +A+ +L
Sbjct: 3 VALVTAASSGIGLAIARALAREGARVAICARNRENLERAASELR--AGGAGVLAVVADLT 60
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAG------VFGLGFSHTEDGFETTFQVNHLAHFYL 238
+ + + E+ F ++ILV NAG L T++ + F + L+ +
Sbjct: 61 DPEDIDRLVEKAGDAFGRVDILVNNAGGPPPGPFAEL----TDEDWLEAFDLKLLSVIRI 116
Query: 239 T 239
Sbjct: 117 V 117
>gnl|CDD|187586 cd05325, carb_red_sniffer_like_SDR_c, carbonyl reductase
sniffer-like, classical (c) SDRs. Sniffer is an
NADPH-dependent carbonyl reductase of the classical SDR
family. Studies in Drosophila melanogaster implicate
Sniffer in the prevention of neurodegeneration due to
aging and oxidative-stress. This subgroup also includes
Rhodococcus sp. AD45 IsoH, which is an NAD-dependent
1-hydroxy-2-glutathionyl-2-methyl-3-butene dehydrogenase
involved in isoprene metabolism, Aspergillus nidulans
StcE encoded by a gene which is part of a proposed
sterigmatocystin biosynthesis gene cluster, Bacillus
circulans SANK 72073 BtrF encoded by a gene found in the
butirosin biosynthesis gene cluster, and Aspergillus
parasiticus nor-1 involved in the biosynthesis of
aflatoxins. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 233
Score = 66.9 bits (164), Expect = 6e-13
Identities = 31/118 (26%), Positives = 49/118 (41%), Gaps = 7/118 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
++TGA+ GIG E R L G VI CR A + ++ + + +++
Sbjct: 1 VLITGASRGIGLELVRQLLARGNNTVIATCRDPSAATE-LAALGASHSRLHILELDVTDE 59
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAHFYLT 239
+S + AE L++L+ NAG+ G + FQVN L LT
Sbjct: 60 IAESAEAVAERL--GDAGLDVLINNAGILHSYGPASEVDSEDLLEVFQVNVLGPLLLT 115
>gnl|CDD|187632 cd05374, 17beta-HSD-like_SDR_c, 17beta hydroxysteroid
dehydrogenase-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 248
Score = 66.9 bits (164), Expect = 8e-13
Identities = 40/160 (25%), Positives = 68/160 (42%), Gaps = 31/160 (19%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TG ++GIG A +LA G RVI R+ DK L E + +EL++
Sbjct: 3 VLITGCSSGIGLALALALAAQGYRVIATARNPDKLES-----LGELLNDNLEVLELDVTD 57
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYLTLQLE 243
+S+K +E ++F +++LV NAG +FG + + F+VN + L
Sbjct: 58 EESIKAAVKEVIERFGRIDVLVNNAGYGLFGPLEETSIEEVRELFEVN----VFGPL--- 110
Query: 244 NALIKGAKLFARQQGAAT----------------SIYCAT 267
+ + R+QG+ YCA+
Sbjct: 111 -RVTRAFLPLMRKQGSGRIVNVSSVAGLVPTPFLGPYCAS 149
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 66.4 bits (163), Expect = 1e-12
Identities = 33/132 (25%), Positives = 62/132 (46%), Gaps = 3/132 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A+VTGA+ GIG A LA G V++ S + +A+ + + +A+
Sbjct: 2 SLEGKVALVTGASRGIGRAIAERLAAQGANVVINYASSEAGAEALVAEIGAL-GGKALAV 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFY 237
+ ++ +SV++ +E + +F ++ILV NAG+ E+ ++ N F
Sbjct: 61 QGDVSDAESVERAVDEAKAEFGGVDILVNNAGITRDNLLMRMKEEDWDRVIDTNLTGVFN 120
Query: 238 LTLQLENALIKG 249
LT + ++K
Sbjct: 121 LTKAVARPMMKQ 132
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 65.4 bits (160), Expect = 3e-12
Identities = 39/144 (27%), Positives = 65/144 (45%), Gaps = 12/144 (8%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL+ A+VTGA+ GIG A+ LA G VI++ R LD I+ A+ +A
Sbjct: 5 DLTGKIALVTGASRGIGEAIAKLLAQQGAHVIVSSRKLDGCQAVADAIVAAGGKAEALA- 63
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV---FGLGFSHTEDGFETTFQVNHLAHF 236
++ ++ + +++ L+ILV NA FG F+ T VN +F
Sbjct: 64 -CHIGEMEQIDALFAHIRERHGRLDILVNNAAANPYFGHILDTDLGAFQKTVDVNIRGYF 122
Query: 237 YLTLQLENALIKGAKLFARQQGAA 260
+++ ++ KL Q G +
Sbjct: 123 FMS-------VEAGKLMKEQGGGS 139
>gnl|CDD|238122 cd00201, WW, Two conserved tryptophans domain; also known as the
WWP or rsp5 domain; around 40 amino acids; functions as
an interaction module in a diverse set of signalling
proteins; binds specific proline-rich sequences but at
low affinities compared to other peptide recognition
proteins such as antibodies and receptors; WW domains
have a single groove formed by a conserved Trp and Tyr
which recognizes a pair of residues of the sequence
X-Pro; variable loops and neighboring domains confer
specificity in this domain; there are five distinct
groups based on binding: 1) PPXY motifs 2) the PPLP
motif; 3) PGM motifs; 4) PSP or PTP motifs; 5) PR
motifs.
Length = 31
Score = 59.5 bits (145), Expect = 4e-12
Identities = 20/30 (66%), Positives = 21/30 (70%)
Query: 18 PPGWEERVTADGCVYYVNHATEGTQWTHPR 47
PPGWEER DG VYY NH T+ TQW PR
Sbjct: 1 PPGWEERWDPDGRVYYYNHNTKETQWEDPR 30
Score = 36.4 bits (85), Expect = 6e-04
Identities = 12/31 (38%), Positives = 18/31 (58%)
Query: 59 PLGWEKSVSEDGKITFYNKDTHVKTYTDPRI 89
P GWE+ DG++ +YN +T + DPR
Sbjct: 1 PPGWEERWDPDGRVYYYNHNTKETQWEDPRE 31
>gnl|CDD|197736 smart00456, WW, Domain with 2 conserved Trp (W) residues. Also
known as the WWP or rsp5 domain. Binds proline-rich
polypeptides.
Length = 33
Score = 59.2 bits (144), Expect = 5e-12
Identities = 20/31 (64%), Positives = 21/31 (67%)
Query: 17 LPPGWEERVTADGCVYYVNHATEGTQWTHPR 47
LPPGWEER DG YY NH T+ TQW PR
Sbjct: 2 LPPGWEERKDPDGRPYYYNHETKETQWEKPR 32
Score = 40.7 bits (96), Expect = 2e-05
Identities = 12/33 (36%), Positives = 17/33 (51%)
Query: 57 DLPLGWEKSVSEDGKITFYNKDTHVKTYTDPRI 89
LP GWE+ DG+ +YN +T + PR
Sbjct: 1 PLPPGWEERKDPDGRPYYYNHETKETQWEKPRE 33
>gnl|CDD|187623 cd05365, 7_alpha_HSDH_SDR_c, 7 alpha-hydroxysteroid dehydrogenase
(7 alpha-HSDH), classical (c) SDRs. This bacterial
subgroup contains 7 alpha-HSDHs, including Escherichia
coli 7 alpha-HSDH. 7 alpha-HSDH, a member of the SDR
family, catalyzes the NAD+ -dependent dehydrogenation of
a hydroxyl group at position 7 of the steroid skeleton
of bile acids. In humans the two primary bile acids are
cholic and chenodeoxycholic acids, these are formed from
cholesterol in the liver. Escherichia coli 7 alpha-HSDH
dehydroxylates these bile acids in the human intestine.
Mammalian 7 alpha-HSDH activity has been found in
livers. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 242
Score = 64.5 bits (157), Expect = 5e-12
Identities = 36/118 (30%), Positives = 56/118 (47%), Gaps = 5/118 (4%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
AIVTG GIG A +LA G V++A + A + I ++ Q I +E N+
Sbjct: 1 VAIVTGGAAGIGKAIAGTLAKAGASVVIADLKSEGAEAVAAAI--QQAGGQAIGLECNVT 58
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG---FSHTEDGFETTFQVNHLAHFYLT 239
+ ++ + +F + ILV NAG G TE+ FE F++N + F L+
Sbjct: 59 SEQDLEAVVKATVSQFGGITILVNNAGGGGPKPFDMPMTEEDFEWAFKLNLFSAFRLS 116
>gnl|CDD|187604 cd05346, SDR_c5, classical (c) SDR, subgroup 5. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 249
Score = 64.2 bits (157), Expect = 6e-12
Identities = 43/161 (26%), Positives = 73/161 (45%), Gaps = 26/161 (16%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
++TGA++GIG TAR A G ++IL R ++ ++ L K + + ++L++
Sbjct: 2 TVLITGASSGIGEATARRFAKAGAKLILTGRRAERLQ-ELADELGAKFPVKVLPLQLDVS 60
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH----TEDGFETTFQVNHLAHFYLTL 240
+S++ E ++FR ++ILV NAG LG + +ET N +T
Sbjct: 61 DRESIEAALENLPEEFRDIDILVNNAG-LALGLDPAQEADLEDWETMIDTNVKGLLNVTR 119
Query: 241 QLENALIKGAKLFARQQG--------------AATSIYCAT 267
+ +I AR QG A ++YCAT
Sbjct: 120 LILPIMI------ARNQGHIINLGSIAGRYPYAGGNVYCAT 154
>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 = 63.5 bits (155), Expect = 8e-12
Identities = 39/170 (22%), Positives = 63/170 (37%), Gaps = 38/170 (22%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILTEKPSAQC 176
L+ ++TG +GIG AR G VI+ R L +A + I T
Sbjct: 2 KLTGNTVLITGGTSGIGLALARKFLEAGNTVIITGRREERLAEAKKELPNIHT------- 54
Query: 177 IAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV-----FGLGFSHTEDGFETTFQVN 231
+ L++ +SV+ AE ++ +L+IL+ NAG+ S + +T N
Sbjct: 55 --IVLDVGDAESVEALAEALLSEYPNLDILINNAGIQRPIDLRDPASDLDK-ADTEIDTN 111
Query: 232 HLAHFYLTLQLENALIKGAKLFARQQG--------------AATSIYCAT 267
+ L L K + + AA +YCAT
Sbjct: 112 LIGPIRLIKAFLPHLKK------QPEATIVNVSSGLAFVPMAANPVYCAT 155
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 63.7 bits (156), Expect = 9e-12
Identities = 37/124 (29%), Positives = 57/124 (45%), Gaps = 6/124 (4%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
L AIVTGA++GIG AR A G RV++ R+ + A ++I + IA
Sbjct: 1 MRLEGKVAIVTGASSGIGEGIARRFAAEGARVVVTDRNEEAAERVAAEI---LAGGRAIA 57
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG---VFGLGFSHTEDGFETTFQVNHLAH 235
+ ++ V+ ++F S++ILV NAG G E F+ F VN +
Sbjct: 58 VAADVSDEADVEAAVAAALERFGSVDILVNNAGTTHRNGPLLDVDEAEFDRIFAVNVKSP 117
Query: 236 FYLT 239
+ T
Sbjct: 118 YLWT 121
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 63.7 bits (156), Expect = 9e-12
Identities = 31/123 (25%), Positives = 57/123 (46%), Gaps = 5/123 (4%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKIL-TEKPSAQCIA 178
L A+VTGA G+G A LA G V++ RS ++A + + + + AQ +
Sbjct: 3 SLMGRVALVTGAARGLGRAIALRLARAGADVVVHYRSDEEAAEELVEAVEALGRRAQAVQ 62
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNHLAHF 236
++ +++ ++F ++ILV NAG+F ++D ++ VN F
Sbjct: 63 ADVT--DKAALEAAVAAAVERFGRIDILVNNAGIFEDKPLADMSDDEWDEVIDVNLSGVF 120
Query: 237 YLT 239
+L
Sbjct: 121 HLL 123
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 62.6 bits (153), Expect = 2e-11
Identities = 40/131 (30%), Positives = 66/131 (50%), Gaps = 3/131 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L AIVTGA+ GIG A LA G +V++A ++A + + + E+ IA+
Sbjct: 2 KLMGKVAIVTGASGGIGRAIAELLAKEGAKVVIAYDINEEAAQELLEEIKEE-GGDAIAV 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLAHFY 237
+ ++ + V+ E+ +KF ++ILV NAG+ FGL T++ ++ VN
Sbjct: 61 KADVSSEEDVENLVEQIVEKFGKIDILVNNAGISNFGLVTDMTDEEWDRVIDVNLTGVML 120
Query: 238 LTLQLENALIK 248
LT +IK
Sbjct: 121 LTRYALPYMIK 131
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 61.0 bits (149), Expect = 2e-11
Identities = 26/119 (21%), Positives = 45/119 (37%), Gaps = 7/119 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCR-VILACRSL--DKANDAISKILTEKPSAQCIAMELN 182
++TG G+G AR LA G R ++L R A + ++++ E A+ +
Sbjct: 3 VLITGGTGGLGLALARWLAAEGARHLVLVSRRGPAPGAAELVAEL--EALGAEVTVAACD 60
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG-FSH-TEDGFETTFQVNHLAHFYLT 239
+ ++ L+ +V NAGV G T + FE + L
Sbjct: 61 VADRDALAALLAALPAALGPLDGVVHNAGVLDDGPLEELTPERFERVLAPKVTGAWNLH 119
>gnl|CDD|187598 cd05339, 17beta-HSDXI-like_SDR_c, human 17-beta-hydroxysteroid
dehydrogenase XI-like, classical (c) SDRs.
17-beta-hydroxysteroid dehydrogenases (17betaHSD) are a
group of isozymes that catalyze activation and
inactivation of estrogen and androgens. 17betaHSD type
XI, a classical SDR, preferentially converts
3alpha-adiol to androsterone but not numerous other
tested steroids. This subgroup of classical SDRs also
includes members identified as retinol dehydrogenases,
which convert retinol to retinal, a property that
overlaps with 17betaHSD activity. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 62.6 bits (153), Expect = 2e-11
Identities = 31/118 (26%), Positives = 54/118 (45%), Gaps = 8/118 (6%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAIS--KILTEKPSAQCIAMELNL 183
++TG +GIG A A G +V++ LD K + + ++
Sbjct: 2 VLITGGGSGIGRLLALEFAKRGAKVVI----LDINEKGAEETANNVRKAGGKVHYYKCDV 57
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNHLAHFYLT 239
+ + V + A++ +K+ + IL+ NAGV ++ E TF+VN LAHF+ T
Sbjct: 58 SKREEVYEAAKKIKKEVGDVTILINNAGVVSGKKLLELPDEEIEKTFEVNTLAHFWTT 115
>gnl|CDD|187610 cd05352, MDH-like_SDR_c, mannitol dehydrogenase (MDH)-like,
classical (c) SDRs. NADP-mannitol dehydrogenase
catalyzes the conversion of fructose to mannitol, an
acyclic 6-carbon sugar. MDH is a tetrameric member of
the SDR family. This subgroup also includes various
other tetrameric SDRs, including Pichia stipitis
D-arabinitol dehydrogenase (aka polyol dehydrogenase),
Candida albicans Sou1p, a sorbose reductase, and Candida
parapsilosis (S)-specific carbonyl reductase (SCR, aka
S-specific alcohol dehydrogenase) which catalyzes the
enantioselective reduction of 2-hydroxyacetophenone into
(S)-1-phenyl-1,2-ethanediol. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser).
Length = 252
Score = 62.7 bits (153), Expect = 2e-11
Identities = 35/120 (29%), Positives = 57/120 (47%), Gaps = 3/120 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L AIVTG + GIG AR+LA G V + S +A + + L +K + A
Sbjct: 5 SLKGKVAIVTGGSRGIGLAIARALAEAGADVAIIYNSAPRAEEKAEE-LAKKYGVKTKAY 63
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV-FGLGF-SHTEDGFETTFQVNHLAHFY 237
+ ++ +SV+K ++ QK F ++IL+ NAG+ +T + + VN F
Sbjct: 64 KCDVSSQESVEKTFKQIQKDFGKIDILIANAGITVHKPALDYTYEQWNKVIDVNLNGVFN 123
>gnl|CDD|215899 pfam00397, WW, WW domain. The WW domain is a protein module with
two highly conserved tryptophans that binds
proline-rich peptide motifs in vitro.
Length = 30
Score = 55.3 bits (134), Expect = 1e-10
Identities = 19/30 (63%), Positives = 19/30 (63%)
Query: 17 LPPGWEERVTADGCVYYVNHATEGTQWTHP 46
LPPGWEER DG YY NH T TQW P
Sbjct: 1 LPPGWEERTDTDGRPYYYNHNTGETQWERP 30
Score = 34.5 bits (80), Expect = 0.003
Identities = 11/30 (36%), Positives = 16/30 (53%)
Query: 58 LPLGWEKSVSEDGKITFYNKDTHVKTYTDP 87
LP GWE+ DG+ +YN +T + P
Sbjct: 1 LPPGWEERTDTDGRPYYYNHNTGETQWERP 30
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 60.4 bits (147), Expect = 1e-10
Identities = 29/113 (25%), Positives = 47/113 (41%), Gaps = 4/113 (3%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L+ A+VTGA G+G A +LA G V +A + + + E + A+
Sbjct: 5 LAGKRALVTGAARGLGAAFAEALAEAGATVAFNDGLAAEARELAAAL--EAAGGRAHAIA 62
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF--SHTEDGFETTFQVN 231
+L SV++F + L+ LV NAG+ D ++ VN
Sbjct: 63 ADLADPASVQRFFDAAAAALGGLDGLVNNAGITNSKSATELDIDTWDAVMNVN 115
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 60.1 bits (146), Expect = 2e-10
Identities = 26/94 (27%), Positives = 44/94 (46%), Gaps = 2/94 (2%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI 177
DL+ ++TGA++GIG A A G V+ R D + +I A +
Sbjct: 35 PVDLTGKRILLTGASSGIGEAAAEQFARRGATVVAVARREDLLDAVADRITRAGGDA--M 92
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG 211
A+ +L L +V + +K+ ++IL+ NAG
Sbjct: 93 AVPCDLSDLDAVDALVADVEKRIGGVDILINNAG 126
>gnl|CDD|187620 cd05362, THN_reductase-like_SDR_c,
tetrahydroxynaphthalene/trihydroxynaphthalene
reductase-like, classical (c) SDRs.
1,3,6,8-tetrahydroxynaphthalene reductase (4HNR) of
Magnaporthe grisea and the related
1,3,8-trihydroxynaphthalene reductase (3HNR) are typical
members of the SDR family containing the canonical
glycine rich NAD(P)-binding site and active site tetrad,
and function in fungal melanin biosynthesis. This
subgroup also includes an SDR from Norway spruce that
may function to protect against both biotic and abitoic
stress. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 243
Score = 59.6 bits (145), Expect = 2e-10
Identities = 47/169 (27%), Positives = 73/169 (43%), Gaps = 28/169 (16%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILA-CRSLDKANDAISKILTEKPSAQCIAM 179
L+ A+VTGA+ GIG A+ LA G V++ S A + +++I A IA+
Sbjct: 1 LAGKVALVTGASRGIGRAIAKRLARDGASVVVNYASSKAAAEEVVAEIEAAGGKA--IAV 58
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF--SHTEDGFETTFQVNHLAHFY 237
+ ++ V + + +K F ++ILV NAGV +E+ F+ F VN
Sbjct: 59 QADVSDPSQVARLFDAAEKAFGGVDILVNNAGVMLKKPIAETSEEEFDRMFTVN------ 112
Query: 238 LTLQLENALIKGAKLFARQQGAATS------IYCATSL-DLSLPVSGSY 279
KGA F Q+ A I ++SL P G+Y
Sbjct: 113 ---------TKGA-FFVLQEAAKRLRDGGRIINISSSLTAAYTPNYGAY 151
>gnl|CDD|187599 cd05340, Ycik_SDR_c, Escherichia coli K-12 YCIK-like, classical (c)
SDRs. Escherichia coli K-12 YCIK and related proteins
have a canonical classical SDR nucleotide-binding motif
and active site tetrad. They are predicted oxoacyl-(acyl
carrier protein/ACP) reductases. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 236
Score = 59.5 bits (144), Expect = 2e-10
Identities = 36/124 (29%), Positives = 58/124 (46%), Gaps = 6/124 (4%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE-KPSAQCIAM 179
L++ +VTGA+ GIG E A + A +G VIL R+ +K I E Q +
Sbjct: 2 LNDRIILVTGASDGIGREAALTYARYGATVILLGRNEEKLRQVADHINEEGGRQPQWFIL 61
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFG----LGFSHTEDGFETTFQVNHLAH 235
+L C ++ ++ A+ + L+ ++ NAG+ G L ++ QVN A
Sbjct: 62 DLLTCTSENCQQLAQRIAVNYPRLDGVLHNAGLLGDVCPLSE-QNPQVWQDVXQVNVNAT 120
Query: 236 FYLT 239
F LT
Sbjct: 121 FMLT 124
>gnl|CDD|187613 cd05355, SDR_c1, classical (c) SDR, subgroup 1. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 270
Score = 60.0 bits (146), Expect = 2e-10
Identities = 42/152 (27%), Positives = 65/152 (42%), Gaps = 16/152 (10%)
Query: 93 KEEKENPLDIRQKYDHSTKALQILHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVIL 152
+ P + Y S K L G+ A++TG ++GIG A + A G V +
Sbjct: 5 AKMDPLPDFGEKSYKGSGK----LKGK-----KALITGGDSGIGRAVAIAFAREGADVAI 55
Query: 153 ACRS--LDKANDAISKILTEKPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNA 210
D A + +K L E+ +C+ + +L + +E K+F L+ILV NA
Sbjct: 56 NYLPEEEDDAEE--TKKLIEEEGRKCLLIPGDLGDESFCRDLVKEVVKEFGKLDILVNNA 113
Query: 211 GVFGLGFS---HTEDGFETTFQVNHLAHFYLT 239
S T + E TF+ N + FYLT
Sbjct: 114 AYQHPQESIEDITTEQLEKTFRTNIFSMFYLT 145
>gnl|CDD|187643 cd08939, KDSR-like_SDR_c, 3-ketodihydrosphingosine reductase (KDSR)
and related proteins, classical (c) SDR. These proteins
include members identified as KDSR, ribitol type
dehydrogenase, and others. The group shows strong
conservation of the active site tetrad and glycine rich
NAD-binding motif of the classical SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 239
Score = 58.8 bits (143), Expect = 4e-10
Identities = 30/120 (25%), Positives = 55/120 (45%), Gaps = 8/120 (6%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA----QCIAMEL 181
++TG ++GIG A+ L G VI+ RS K +A+ +I E ++ I+
Sbjct: 4 VLITGGSSGIGKALAKELVKEGANVIIVARSESKLEEAVEEIEAEANASGQKVSYISA-- 61
Query: 182 NLCRLKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYLT 239
+L + V++ + +K +++V AG + GL T + FE VN+ +
Sbjct: 62 DLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPGLFEDLTAEEFERGMDVNYFGSLNVA 121
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 59.4 bits (144), Expect = 4e-10
Identities = 30/92 (32%), Positives = 53/92 (57%), Gaps = 3/92 (3%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L N A++TGA+TGIG +A +LA G V+ + + ++ + KI + A+ A
Sbjct: 4 LENKVAVITGASTGIGQASAIALAQEGAYVLAVDIA-EAVSETVDKIKSNGGKAK--AYH 60
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+++ + VK FA E +++F +++L NAGV
Sbjct: 61 VDISDEQQVKDFASEIKEQFGRVDVLFNNAGV 92
>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 = 58.9 bits (143), Expect = 4e-10
Identities = 40/148 (27%), Positives = 63/148 (42%), Gaps = 17/148 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TGA IG ++L G R+ILA + + LT + IA+EL++
Sbjct: 5 ILITGAAGLIGKAFCKALLSAGARLILADINAPALEQL-KEELTNLYKNRVIALELDITS 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG--VFGLG---FSHTEDGFETTFQVNHLAHFYLTL 240
+S+K+ E Y +KF ++IL+ NA G + + VN L +L
Sbjct: 64 KESIKELIESYLEKFGRIDILINNAYPSPKVWGSRFEEFPYEQWNEVLNVN-LGGAFLCS 122
Query: 241 QLENALIKGAKLFARQQGAA----TSIY 264
Q KLF +Q + SIY
Sbjct: 123 Q------AFIKLFKKQGKGSIINIASIY 144
>gnl|CDD|187616 cd05358, GlcDH_SDR_c, glucose 1 dehydrogenase (GlcDH), classical
(c) SDRs. GlcDH, is a tetrameric member of the SDR
family, it catalyzes the NAD(P)-dependent oxidation of
beta-D-glucose to D-glucono-delta-lactone. GlcDH has a
typical NAD-binding site glycine-rich pattern as well as
the canonical active site tetrad (YXXXK motif plus
upstream Ser and Asn). SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 253
Score = 58.5 bits (142), Expect = 5e-10
Identities = 38/120 (31%), Positives = 61/120 (50%), Gaps = 5/120 (4%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRS-LDKANDAISKILTEKPSAQCIAM 179
L A+VTGA++GIG A LA G V++ RS D A + + +I + + IA+
Sbjct: 1 LKGKVALVTGASSGIGKAIAIRLATAGANVVVNYRSKEDAAEEVVEEI--KAVGGKAIAV 58
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFY 237
+ ++ + + V + K+F +L+ILV NAG+ G SH T + + VN F
Sbjct: 59 QADVSKEEDVVALFQSAIKEFGTLDILVNNAGLQGDASSHEMTLEDWNKVIDVNLTGQFL 118
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 58.5 bits (142), Expect = 5e-10
Identities = 35/113 (30%), Positives = 54/113 (47%), Gaps = 2/113 (1%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L+ A+VTGA GIG AR+ A G V LA A A + I + A+ +A+
Sbjct: 5 LAGKVALVTGAAQGIGAAIARAFAREGAAVALADLDAALAERAAAAIARDVAGARVLAVP 64
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVN 231
++ SV ++ F L++LV NAG VF + T++ + F V+
Sbjct: 65 ADVTDAASVAAAVAAAEEAFGPLDVLVNNAGINVFADPLAMTDEDWRRCFAVD 117
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 59.9 bits (146), Expect = 6e-10
Identities = 33/115 (28%), Positives = 57/115 (49%), Gaps = 5/115 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA GIG TA+ LA G V+LA + A A +++ + + + ++
Sbjct: 425 ALVTGAAGGIGKATAKRLAAEGACVVLADLDEEAAEAAAAEL---GGPDRALGVACDVTD 481
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNHLAHFYL 238
+V+ EE F ++I+V NAG+ G +++ + +F VN HF +
Sbjct: 482 EAAVQAAFEEAALAFGGVDIVVSNAGIAISGPIEETSDEDWRRSFDVNATGHFLV 536
>gnl|CDD|187622 cd05364, SDR_c11, classical (c) SDR, subgroup 11. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 253
Score = 57.8 bits (140), Expect = 9e-10
Identities = 34/122 (27%), Positives = 54/122 (44%), Gaps = 3/122 (2%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKIL-TEKPSAQCIAM 179
LS AI+TG+++GIG TA A G R+ L R ++ + L + + +
Sbjct: 1 LSGKVAIITGSSSGIGAGTAILFARLGARLALTGRDAERLEETRQSCLQAGVSEKKILLV 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED--GFETTFQVNHLAHFY 237
+L + + KF L+ILV NAG+ G +D ++ +N A Y
Sbjct: 61 VADLTEEEGQDRIISTTLAKFGRLDILVNNAGILAKGGGEDQDIEEYDKVMNLNLRAVIY 120
Query: 238 LT 239
LT
Sbjct: 121 LT 122
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 57.7 bits (140), Expect = 1e-09
Identities = 26/92 (28%), Positives = 45/92 (48%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A+VTG ++GIG T L G V + R ++ A +++ + P A+ +A
Sbjct: 5 QLEGRVAVVTGGSSGIGLATVELLLEAGASVAICGRDEERLASAEARLREKFPGARLLAA 64
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG 211
++ V FA + +F +++LV NAG
Sbjct: 65 RCDVLDEADVAAFAAAVEARFGGVDMLVNNAG 96
>gnl|CDD|187646 cd08942, RhlG_SDR_c, RhlG and related beta-ketoacyl reductases,
classical (c) SDRs. Pseudomonas aeruginosa RhlG is an
SDR-family beta-ketoacyl reductase involved in
Rhamnolipid biosynthesis. RhlG is similar to but
distinct from the FabG family of beta-ketoacyl-acyl
carrier protein (ACP) of type II fatty acid synthesis.
RhlG and related proteins are classical SDRs, with a
canonical active site tetrad and glycine-rich
NAD(P)-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 57.5 bits (139), Expect = 1e-09
Identities = 34/133 (25%), Positives = 61/133 (45%), Gaps = 5/133 (3%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
++ +VTG + GIG A+ G RVI++ R + DA ++ +CIA+
Sbjct: 3 SVAGKIVLVTGGSRGIGRMIAQGFLEAGARVIISARKAEACADAAEELSA---YGECIAI 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV-FGLGF-SHTEDGFETTFQVNHLAHFY 237
+L + ++ ++ L++LV NAG +G + E G++ +N + F+
Sbjct: 60 PADLSSEEGIEALVARVAERSDRLDVLVNNAGATWGAPLEAFPESGWDKVMDINVKSVFF 119
Query: 238 LTLQLENALIKGA 250
LT L L A
Sbjct: 120 LTQALLPLLRAAA 132
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 57.6 bits (140), Expect = 1e-09
Identities = 27/92 (29%), Positives = 50/92 (54%), Gaps = 2/92 (2%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A+VTGA +GIG E A +LA G +V++A + + A A + +K + I +
Sbjct: 2 LKGKVALVTGAASGIGLEIALALAKEGAKVVIADLNDEAAAAAAEAL--QKAGGKAIGVA 59
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+++ +++ + + F ++ILV NAG+
Sbjct: 60 MDVTDEEAINAGIDYAVETFGGVDILVNNAGI 91
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 57.8 bits (140), Expect = 1e-09
Identities = 40/135 (29%), Positives = 66/135 (48%), Gaps = 10/135 (7%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+V GA++GIG TA LA G V L R ++K + + KI + A +A L++
Sbjct: 13 ALVAGASSGIGAATAIELAAAGFPVALGARRVEKCEELVDKIRADGGEA--VAFPLDVTD 70
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYLTLQLE 243
SVK F + ++ + +LV AG FG + + FE+ Q+ H +L
Sbjct: 71 PDSVKSFVAQAEEALGEIEVLVSGAGDTYFGKLHEISTEQFESQVQI----HLVGANRLA 126
Query: 244 NALIKGAKLFARQQG 258
A++ G + R++G
Sbjct: 127 TAVLPG--MIERRRG 139
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 57.2 bits (139), Expect = 1e-09
Identities = 37/116 (31%), Positives = 58/116 (50%), Gaps = 4/116 (3%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE-KPSAQCIAMELNLCRL 186
VTGA GIG E A + A HG VIL R+ +K +I P I ++L
Sbjct: 17 VTGAGDGIGREAALTYARHGATVILLGRTEEKLEAVYDEIEAAGGPQPAIIPLDLLTATP 76
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFG-LG-FSH-TEDGFETTFQVNHLAHFYLT 239
++ ++ A+ +++F L+ ++ NAG+ G LG + ++ QVN A F LT
Sbjct: 77 QNYQQLADTIEEQFGRLDGVLHNAGLLGELGPMEQQDPEVWQDVMQVNVNATFMLT 132
>gnl|CDD|213929 TIGR04316, dhbA_paeA, 2,3-dihydro-2,3-dihydroxybenzoate
dehydrogenase. Members of this family are
2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase (EC
1.3.1.28), the third enzyme in the biosynthesis of
2,3-dihydroxybenzoic acid (DHB) from chorismate. The
first two enzymes are isochorismate synthase (EC
5.4.4.2) and isochorismatase (EC 3.3.2.1). Synthesis is
often followed by adenylation by the enzyme DHBA-AMP
ligase (EC 2.7.7.58) to activate (DHB) for a
non-ribosomal peptide synthetase.
Length = 250
Score = 57.3 bits (139), Expect = 2e-09
Identities = 34/143 (23%), Positives = 66/143 (46%), Gaps = 16/143 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKA---NDAISKILTEKPSAQCIAMELN 182
+VTGA GIG+ AR+LA G RV ++D+ + L +L+
Sbjct: 1 VLVTGAAQGIGYAVARALAEAGARVA----AVDRNFEQLLELVADLRRYGY-PFATYKLD 55
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVNHLAHFYLTL 240
+ +V + + ++++ +++LV AG+ LG +++ ++ TF VN F ++
Sbjct: 56 VADSAAVDEVVQRLEREYGPIDVLVNVAGILRLGAIDSLSDEDWQATFAVNTFGVFNVS- 114
Query: 241 QLENALIKGAKLFARQQGAATSI 263
A+ K R+ GA ++
Sbjct: 115 ---QAVSPRMK--RRRSGAIVTV 132
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 56.9 bits (138), Expect = 2e-09
Identities = 22/92 (23%), Positives = 43/92 (46%), Gaps = 3/92 (3%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TG + GIGF A +L G +V + R + +A +++ + +
Sbjct: 4 LKGKVALITGGSKGIGFAIAEALLAEGYKVAITARDQKELEEAAAEL---NNKGNVLGLA 60
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ V++ + F L++L+ NAGV
Sbjct: 61 ADVRDEADVQRAVDAIVAAFGGLDVLIANAGV 92
>gnl|CDD|187615 cd05357, PR_SDR_c, pteridine reductase (PR), classical (c) SDRs.
Pteridine reductases (PRs), members of the SDR family,
catalyzes the NAD-dependent reduction of folic acid,
dihydrofolate and related compounds. In Leishmania,
pteridine reductase (PTR1) acts to circumvent the
anti-protozoan drugs that attack dihydrofolate reductase
activity. Proteins in this subgroup have an N-terminal
NAD-binding motif and a YxxxK active site motif, but
have an Asp instead of the usual upstream catalytic Ser.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 234
Score = 56.5 bits (137), Expect = 3e-09
Identities = 29/129 (22%), Positives = 48/129 (37%), Gaps = 5/129 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACR-SLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VTGA IG A +LA G RV++ S +A ++ + ++ +L
Sbjct: 3 ALVTGAAKRIGRAIAEALAAEGYRVVVHYNRSEAEAQRLKDEL--NALRNSAVLVQADLS 60
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYLTLQL 242
+ + F ++LV NA F +ED + F +N A + L
Sbjct: 61 DFAACADLVAAAFRAFGRCDVLVNNASAFYPTPLGQGSEDAWAELFGINLKAPYLLIQAF 120
Query: 243 ENALIKGAK 251
L
Sbjct: 121 ARRLAGSRN 129
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 56.2 bits (136), Expect = 4e-09
Identities = 33/122 (27%), Positives = 54/122 (44%), Gaps = 7/122 (5%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
+ L +VTG +GIG A + A G RV + D + A++ P A+ A
Sbjct: 7 KPLDGLRVLVTGGASGIGRAIAEAFAEAGARVHVC----DVSEAALAATAARLPGAKVTA 62
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF---SHTEDGFETTFQVNHLAH 235
++ V++ + ++F L++LV NAG+ G T + +E T VN
Sbjct: 63 TVADVADPAQVERVFDTAVERFGGLDVLVNNAGIAGPTGGIDEITPEQWEQTLAVNLNGQ 122
Query: 236 FY 237
FY
Sbjct: 123 FY 124
>gnl|CDD|187640 cd08935, mannonate_red_SDR_c, putative D-mannonate oxidoreductase,
classical (c) SDR. D-mannonate oxidoreductase catalyzes
the NAD-dependent interconversion of D-mannonate and
D-fructuronate. This subgroup includes Bacillus
subtitils UxuB/YjmF, a putative D-mannonate
oxidoreductase; the B. subtilis UxuB gene is part of a
putative ten-gene operon (the Yjm operon) involved in
hexuronate catabolism. Escherichia coli UxuB does not
belong to this subgroup. This subgroup has a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 271
Score = 56.3 bits (136), Expect = 4e-09
Identities = 35/150 (23%), Positives = 64/150 (42%), Gaps = 26/150 (17%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L N A++TG +G AR+LA G +V R+ +K D ++K +T + IA+
Sbjct: 2 SLKNKVAVITGGTGVLGGAMARALAQAGAKVAALGRNQEKG-DKVAKEITALG-GRAIAL 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG--------------------VFGLGFSH 219
++ S+++ EE +F +++IL+ AG F L
Sbjct: 60 AADVLDRASLERAREEIVAQFGTVDILINGAGGNHPDATTDPEHYEPETEQNFFDL---- 115
Query: 220 TEDGFETTFQVNHLAHFYLTLQLENALIKG 249
E+G+E F +N F + +++
Sbjct: 116 DEEGWEFVFDLNLNGSFLPSQVFGKDMLEQ 145
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 55.7 bits (135), Expect = 5e-09
Identities = 43/194 (22%), Positives = 78/194 (40%), Gaps = 25/194 (12%)
Query: 126 AIVTGANTGIGFETARSLALHGCRV-ILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VTG GIG AR+LA G + I ++ ++ + I ++
Sbjct: 5 ALVTGGRRGIGLGIARALAAAGFDLAINDRPDDEELAATQQELRAL--GVEVIFFPADVA 62
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH-------TEDGFETTFQVNHLAHFY 237
L + + + Q + ++ LV NAGV G T + F+ +N F+
Sbjct: 63 DLSAHEAMLDAAQAAWGRIDCLVNNAGV---GVKVRGDLLDLTPESFDRVLAINLRGPFF 119
Query: 238 LTLQLENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEAL 297
LT + ++ + + + ++ +S P G Y C SKA ++
Sbjct: 120 LTQAVAKRMLAQPEPEELPHRSIVFVSSVNAIMVS-PNRGEY---CI----SKAGL--SM 169
Query: 298 ATKLW--KLSEEMI 309
A +L+ +L+EE I
Sbjct: 170 AAQLFAARLAEEGI 183
>gnl|CDD|187648 cd08944, SDR_c12, classical (c) SDR, subgroup 12. These are
classical SDRs, with the canonical active site tetrad
and glycine-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 246
Score = 55.6 bits (134), Expect = 6e-09
Identities = 29/90 (32%), Positives = 45/90 (50%), Gaps = 5/90 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVTGA GIG A LA G RV++A A +++I + +A+ +++
Sbjct: 6 AIVTGAGAGIGAACAARLAREGARVVVADIDGGAAQAVVAQI-----AGGALALRVDVTD 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGL 215
+ V E ++F L++LV NAG L
Sbjct: 61 EQQVAALFERAVEEFGGLDLLVNNAGAMHL 90
>gnl|CDD|211705 TIGR01963, PHB_DH, 3-hydroxybutyrate dehydrogenase. This model
represents a subfamily of the short chain
dehydrogenases. Characterized members so far as
3-hydroxybutyrate dehydrogenases and are found in
species that accumulate ester polmers called
polyhydroxyalkanoic acids (PHAs) under certain
conditions. Several members of the family are from
species not known to accumulate PHAs, including
Oceanobacillus iheyensis and Bacillus subtilis. However,
polymer formation is not required for there be a role
for 3-hydroxybutyrate dehydrogenase; it may be members
of this family have the same function in those species.
Length = 255
Score = 55.5 bits (134), Expect = 6e-09
Identities = 26/87 (29%), Positives = 43/87 (49%), Gaps = 2/87 (2%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA +GIG AR+LA G V++ + A A +K+ + I + ++ +
Sbjct: 4 ALVTGAASGIGLAIARALAAAGANVVVNDFGEEGAE-AAAKVAGDA-GGSVIYLPADVTK 61
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ +F L+ILV NAG+
Sbjct: 62 EDEIADMIAAAAAEFGGLDILVNNAGI 88
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 55.4 bits (134), Expect = 6e-09
Identities = 31/122 (25%), Positives = 54/122 (44%), Gaps = 7/122 (5%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DLS A+VTG +GIG A A G RV L R ++ ++++ + +
Sbjct: 12 DLSGKVAVVTGGASGIGHAIAELFAAKGARVALLDR-----SEDVAEVAAQLLGGNAKGL 66
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGL--GFSHTEDGFETTFQVNHLAHFY 237
++ +SV+ F ++ILV +AGV L +E+ ++ T +N F
Sbjct: 67 VCDVSDSQSVEAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWDKTIDINLKGSFL 126
Query: 238 LT 239
+
Sbjct: 127 MA 128
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 55.2 bits (133), Expect = 9e-09
Identities = 30/108 (27%), Positives = 50/108 (46%), Gaps = 5/108 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A++TGA GIG AR A HG +IL S + ++ +C A+ ++
Sbjct: 9 ALITGALQGIGEGIARVFARHGANLILLDIS-PEIEKLADELCG--RGHRCTAVVADVRD 65
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
SV + ++K ++ILV NAGV LG +++ + +N
Sbjct: 66 PASVAAAIKRAKEKEGRIDILVNNAGVCRLGSFLDMSDEDRDFHIDIN 113
>gnl|CDD|236056 PRK07576, PRK07576, short chain dehydrogenase; Provisional.
Length = 264
Score = 55.0 bits (133), Expect = 9e-09
Identities = 33/132 (25%), Positives = 59/132 (44%), Gaps = 16/132 (12%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
D + N +V G +GI A++ A G V +A RS +K + A++++ P + +
Sbjct: 6 DFAGKNVVVVGGTSGINLGIAQAFARAGANVAVASRSQEKVDAAVAQLQQAGPEG--LGV 63
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLN-AGVF---GLGFSHTEDGFET--------T 227
++ +V+ + +F +++LV AG F G S +GF+T T
Sbjct: 64 SADVRDYAAVEAAFAQIADEFGPIDVLVSGAAGNFPAPAAGMS--ANGFKTVVDIDLLGT 121
Query: 228 FQVNHLAHFYLT 239
F V A+ L
Sbjct: 122 FNVLKAAYPLLR 133
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 54.6 bits (132), Expect = 1e-08
Identities = 42/159 (26%), Positives = 64/159 (40%), Gaps = 21/159 (13%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACR---SLDKANDAI-SKILTEKPSAQC 176
L A++TG +GIG ETAR G RV + R SL+ A + L + A
Sbjct: 4 LQGKTALITGGTSGIGLETARQFLAEGARVAITGRDPASLEAARAELGESALVIRADAGD 63
Query: 177 IAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLA 234
+A + K A+ + F L+ + +NAGV F E F+ +F N
Sbjct: 64 VA---------AQKALAQALAEAFGRLDAVFINAGVAKFAPLEDWDEAMFDRSFNTNVKG 114
Query: 235 HFYLTLQLENALIKGAKLF------ARQQGAATSIYCAT 267
++L L L A + A +S+Y A+
Sbjct: 115 PYFLIQALLPLLANPASIVLNGSINAHIGMPNSSVYAAS 153
>gnl|CDD|187612 cd05354, SDR_c7, classical (c) SDR, subgroup 7. These proteins are
members of the classical SDR family, with a canonical
active site triad (and also an active site Asn) and a
typical Gly-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 235
Score = 54.0 bits (130), Expect = 2e-08
Identities = 43/173 (24%), Positives = 72/173 (41%), Gaps = 21/173 (12%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAM 179
+ + +VTGAN GIG SL HG +V A R A L K + + +
Sbjct: 1 IKDKTVLVTGANRGIGKAFVESLLAHGAKKVYAAVRDPGSAAH-----LVAKYGDKVVPL 55
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLT 239
L++ +S+K A + + +++++ NAGV + E+G + + +
Sbjct: 56 RLDVTDPESIKAAAA----QAKDVDVVINNAGVLKPA-TLLEEGALEALKQEMDVNVFGL 110
Query: 240 LQLENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAA 292
L+L A K A GA ++ SL + P G+Y SK+A
Sbjct: 111 LRLAQAFAPVLK--ANGGGAIVNLNSVASL-KNFPAMGTY-------SASKSA 153
>gnl|CDD|187639 cd08934, CAD_SDR_c, clavulanic acid dehydrogenase (CAD), classical
(c) SDR. CAD catalyzes the NADP-dependent reduction of
clavulanate-9-aldehyde to clavulanic acid, a
beta-lactamase inhibitor. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 243
Score = 54.1 bits (130), Expect = 2e-08
Identities = 38/116 (32%), Positives = 57/116 (49%), Gaps = 4/116 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA++GIG TAR+LA G V +A R +D+ ++ E + + +EL++
Sbjct: 6 ALVTGASSGIGEATARALAAEGAAVAIAARRVDRLEALADEL--EAEGGKALVLELDVTD 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETT--FQVNHLAHFYLT 239
+ V E + L+ILV NAG+ LG D + T N L Y T
Sbjct: 64 EQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLLGLMYTT 119
>gnl|CDD|187601 cd05343, Mgc4172-like_SDR_c, human Mgc4172-like, classical (c)
SDRs. Human Mgc4172-like proteins, putative SDRs. These
proteins are members of the SDR family, with a canonical
active site tetrad and a typical Gly-rich NAD-binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 54.1 bits (130), Expect = 2e-08
Identities = 29/116 (25%), Positives = 53/116 (45%), Gaps = 3/116 (2%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
A+VTGA+ GIG AR+L HG +V+ R +DK +A++ +
Sbjct: 4 WRGRVALVTGASVGIGAAVARALVQHGMKVVGCARRVDKI-EALAAECQSAGYPTLFPYQ 62
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF--SHTEDGFETTFQVNHLA 234
+L + + + + + +++ + NAG+ S +G++ F VN LA
Sbjct: 63 CDLSNEEQILSMFSAIRTQHQGVDVCINNAGLARPEPLLSGKTEGWKEMFDVNVLA 118
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 53.9 bits (130), Expect = 2e-08
Identities = 30/120 (25%), Positives = 49/120 (40%), Gaps = 14/120 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+V G +G LA G RV +A + +KA + +I E +
Sbjct: 5 AVVIGGGQTLGAFLCHGLAEEGYRVAVADINSEKAANVAQEINAEYGEGMAYGFGADATS 64
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV--------FGLGFSHTEDGFETTFQVNHLAHFY 237
+SV + + F +++LV NAG+ F LG F+ + QVN + +F
Sbjct: 65 EQSVLALSRGVDEIFGRVDLLVYNAGIAKAAFITDFQLG------DFDRSLQVNLVGYFL 118
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 53.8 bits (130), Expect = 3e-08
Identities = 32/117 (27%), Positives = 59/117 (50%), Gaps = 5/117 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TGA+ GIG A LA G +++LA R+ + ++++ L + + + + ++
Sbjct: 4 VIITGASEGIGRALAVRLARAGAQLVLAARNETRL-ASLAQELADHGG-EALVVPTDVSD 61
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG-FSHTED--GFETTFQVNHLAHFYLT 239
++ ++ E +F ++ILV NAG+ F D FE +VN+L Y T
Sbjct: 62 AEACERLIEAAVARFGGIDILVNNAGITMWSRFDELTDLSVFERVMRVNYLGAVYCT 118
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 53.4 bits (129), Expect = 3e-08
Identities = 43/166 (25%), Positives = 70/166 (42%), Gaps = 30/166 (18%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL + ++TGA+ GIG A +LA G R++L R+ +K +A++ L + +
Sbjct: 2 DLKDKRVLLTGASGGIGQALAEALAAAGARLLLVGRNAEKL-EALAARLPYPGRHRWVVA 60
Query: 180 EL-NLCRLKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLAHF 236
+L + ++V A E +N+L+ NAGV F L + E +N A
Sbjct: 61 DLTSEAGREAVLARAREMGG----INVLINNAGVNHFALLEDQDPEAIERLLALNLTA-- 114
Query: 237 YLTLQLENALIKGAKLFARQQGAAT---------------SIYCAT 267
+QL AL+ L Q A + YCA+
Sbjct: 115 --PMQLTRALL---PLLRAQPSAMVVNVGSTFGSIGYPGYASYCAS 155
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 53.0 bits (128), Expect = 3e-08
Identities = 45/178 (25%), Positives = 67/178 (37%), Gaps = 33/178 (18%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCR-VILACRSLDKANDAISKILTEKPSAQCIA 178
D+ +VTGAN GIG L G V A R + D ++ +
Sbjct: 3 DIKGKVVLVTGANRGIGRAFVEQLLARGAAKVYAAARDPESVTDLGPRV---------VP 53
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAH 235
++L++ SV AE + ILV NAG+F L ED + N
Sbjct: 54 LQLDVTDPASVAAAAE----AASDVTILVNNAGIFRTGSLLLEGDEDALRAEMETN---- 105
Query: 236 FYLTLQLENALIKGAKLFARQQGAA-TSIYCATSLDLSLPVSGSYFNNCCRCPPSKAA 292
++ L + A A + A G A ++ S ++ P G+Y SKAA
Sbjct: 106 YFGPLAMARAF---APVLAANGGGAIVNVLSVLSW-VNFPNLGTY-------SASKAA 152
>gnl|CDD|187603 cd05345, BKR_3_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP] reductase (BKR), subgroup 3, classical (c) SDR.
This subgroup includes the putative Brucella melitensis
biovar Abortus 2308 BKR, FabG, Mesorhizobium loti
MAFF303099 FabG, and other classical SDRs. BKR, a member
of the SDR family, catalyzes the NADPH-dependent
reduction of acyl carrier protein in the first reductive
step of de novo fatty acid synthesis (FAS). FAS
consists of 4 elongation steps, which are repeated to
extend the fatty acid chain thru the addition of
two-carbo units from malonyl acyl-carrier protein (ACP):
condensation, reduction, dehydration, and final
reduction. Type II FAS, typical of plants and many
bacteria, maintains these activities on discrete
polypeptides, while type I Fas utilizes one or 2
multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 248
Score = 52.8 bits (127), Expect = 4e-08
Identities = 38/125 (30%), Positives = 55/125 (44%), Gaps = 18/125 (14%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVTGA +G G AR A G RV++A + D A + I IA++ ++ +
Sbjct: 8 AIVTGAGSGFGEGIARRFAQEGARVVIADINADGAERVAADI-----GEAAIAIQADVTK 62
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--------TEDGFETTFQVNHLAHFY 237
V+ E KF L+ILV NA G +H E+ F+ F VN + +
Sbjct: 63 RADVEAMVEAALSKFGRLDILVNNA-----GITHRNKPMLEVDEEEFDRVFAVNVKSIYL 117
Query: 238 LTLQL 242
L
Sbjct: 118 SAQAL 122
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 52.8 bits (127), Expect = 4e-08
Identities = 37/142 (26%), Positives = 71/142 (50%), Gaps = 10/142 (7%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+L A+VTGA++G+G A+ LA G +V+LA R +++ + ++I E +A +
Sbjct: 6 NLEGKVALVTGASSGLGARFAQVLAQAGAKVVLASRRVERLKELRAEIEAEGGAAHVV-- 63
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFY 237
L++ +S+K + + +++ILV N+GV T F+ F N F+
Sbjct: 64 SLDVTDYQSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPADFDFVFDTNTRGAFF 123
Query: 238 LTLQLENALIKGAKLFARQQGA 259
+ ++ ++ AR +GA
Sbjct: 124 VAQEV------AKRMIARAKGA 139
>gnl|CDD|187608 cd05350, SDR_c6, classical (c) SDR, subgroup 6. These proteins are
members of the classical SDR family, with a canonical
active site tetrad and a fairly well conserved typical
Gly-rich NAD-binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 239
Score = 52.7 bits (127), Expect = 5e-08
Identities = 35/126 (27%), Positives = 58/126 (46%), Gaps = 13/126 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TGA++GIG AR A G V LA R D+ ++ +++L PS + L++
Sbjct: 1 VLITGASSGIGRALAREFAKAGYNVALAARRTDRLDELKAELLNPNPSVE--VEILDVTD 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHT-EDG----FETTFQVNHLAHFYLTL 240
+ + E + + L+++++NAGV G + D F T N L
Sbjct: 59 EERNQLVIAELEAELGGLDLVIINAGV---GKGTSLGDLSFKAFRETIDTNLLGAAA--- 112
Query: 241 QLENAL 246
LE AL
Sbjct: 113 ILEAAL 118
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 52.2 bits (126), Expect = 7e-08
Identities = 32/143 (22%), Positives = 55/143 (38%), Gaps = 20/143 (13%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
D S VTGA GIG+ A + G +VI ++ D
Sbjct: 5 DFSGKTVWVTGAAQGIGYAVALAFVEAGAKVIGFDQAFLTQEDYPFATFV---------- 54
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHT--EDGFETTFQVNHLAHFY 237
L++ +V + + + L++LV AG+ +G + + ++ ++ TF VN F
Sbjct: 55 -LDVSDAAAVAQVCQRLLAETGPLDVLVNAAGILRMGATDSLSDEDWQQTFAVNAGGAFN 113
Query: 238 LTLQLENALIKGAKLFARQQGAA 260
L + F RQ+ A
Sbjct: 114 LFRAV-------MPQFRRQRSGA 129
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 52.0 bits (125), Expect = 8e-08
Identities = 47/175 (26%), Positives = 75/175 (42%), Gaps = 20/175 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILA-CRSLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VTG++ GIG A LA G + + RS A + +I E + +A++ N+
Sbjct: 7 ALVTGSSRGIGKAIALRLAEEGYDIAVNYARSRKAAEETAEEI--EALGRKALAVKANVG 64
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNA--GVFGLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
++ +K+ + ++F L++ V NA GV E ++ T +N A + +
Sbjct: 65 DVEKIKEMFAQIDEEFGRLDVFVNNAASGVLRPAMELEESHWDWTMNINAKALLFCAQE- 123
Query: 243 ENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEAL 297
AKL + G I +SL S Y N SKAA EAL
Sbjct: 124 ------AAKLMEKVGGGK--IISLSSLG-----SIRYLENYTTVGVSKAAL-EAL 164
>gnl|CDD|187596 cd05337, BKR_1_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP] reductase (BKR), subgroup 1, classical (c) SDR.
This subgroup includes Escherichia coli CFT073 FabG. The
Escherichai coli K12 BKR, FabG, belongs to a different
subgroup. BKR catalyzes the NADPH-dependent reduction of
ACP in the first reductive step of de novo fatty acid
synthesis (FAS). FAS consists of four elongation steps,
which are repeated to extend the fatty acid chain
through the addition of two-carbo units from malonyl
acyl-carrier protein (ACP): condensation, reduction,
dehydration, and a final reduction. Type II FAS, typical
of plants and many bacteria, maintains these activities
on discrete polypeptides, while type I FAS utilizes one
or two multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet) NAD(P)(H) binding
region and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H) binding
pattern: TGxxxGxG in classical SDRs. Extended SDRs have
additional elements in the C-terminal region, and
typically have a TGXXGXXG cofactor binding motif.
Complex (multidomain) SDRs such as ketoreductase domains
of fatty acid synthase have a GGXGXXG NAD(P) binding
motif and an altered active site motif (YXXXN). Fungal
type type ketoacyl reductases have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P) binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr-151 and
Lys-155, and well as Asn-111 (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 255
Score = 52.1 bits (125), Expect = 8e-08
Identities = 51/193 (26%), Positives = 77/193 (39%), Gaps = 21/193 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVTGA+ GIG A LA G I D + I + ++
Sbjct: 4 AIVTGASRGIGRAIATELAARG-FDIAINDLPDDDQATEVVAEVLAAGRRAIYFQADIGE 62
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG----FSHTEDGFETTFQVNHLAHFYLTLQ 241
L + ++ + F L+ LV NAG+ TED F+ +N F+LT
Sbjct: 63 LSDHEALLDQAWEDFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIAINLRGPFFLTQA 122
Query: 242 LENALIKGAKLFARQQGAATSIYCATSLD--LSLPVSGSYFNNCCRCPPSKAAQDEALAT 299
+ +++ F SI TS++ L P G Y C SKA ++AT
Sbjct: 123 VARRMVEQPDRFDGPHR---SIIFVTSINAYLVSPNRGEY---CI----SKAGL--SMAT 170
Query: 300 KLW--KLSEEMIQ 310
+L +L++E I
Sbjct: 171 RLLAYRLADEGIA 183
>gnl|CDD|187618 cd05360, SDR_c3, classical (c) SDR, subgroup 3. These proteins are
members of the classical SDR family, with a canonical
active site triad (and also active site Asn) and a
typical Gly-rich NAD-binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 233
Score = 51.6 bits (124), Expect = 9e-08
Identities = 44/150 (29%), Positives = 72/150 (48%), Gaps = 12/150 (8%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TGA++GIG TA + A G +V+LA RS +A +++ + E + IA+ ++
Sbjct: 4 VITGASSGIGRATALAFAERGAKVVLAARS-AEALHELAREVREL-GGEAIAVVADVADA 61
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLAHFY------- 237
V++ A+ ++F ++ V NAGV FG T + F F VN+L H Y
Sbjct: 62 AQVERAADTAVERFGRIDTWVNNAGVAVFGRFEDVTPEEFRRVFDVNYLGHVYGTLAALP 121
Query: 238 -LTLQLENALIKGAKLFARQQGAATSIYCA 266
L + ALI L + + Y A
Sbjct: 122 HLRRRGGGALINVGSLLGYRSAPLQAAYSA 151
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A; Provisional.
Length = 256
Score = 51.9 bits (125), Expect = 1e-07
Identities = 35/152 (23%), Positives = 62/152 (40%), Gaps = 14/152 (9%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L ++TGA IG +++ G VI A + N+ + + E S + +E
Sbjct: 2 LKGKTILITGAGGLIGSALVKAILEAGGIVIAADIDKEALNELLESLGKEFKSKKLSLVE 61
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF-SHTEDGFETTFQVN---HLAHF 236
L++ +S+++F + +K+ ++ V A + D F N HL
Sbjct: 62 LDITDQESLEEFLSKSAEKYGKIDGAVNCAYPRNKDYGKKFFDVSLDDFNENLSLHLGSS 121
Query: 237 YLTLQLENALIKGAKLFARQQGAA----TSIY 264
+L Q + AK F +Q G +SIY
Sbjct: 122 FLFSQ------QFAKYFKKQGGGNLVNISSIY 147
>gnl|CDD|187621 cd05363, SDH_SDR_c, Sorbitol dehydrogenase (SDH), classical (c)
SDR. This bacterial subgroup includes Rhodobacter
sphaeroides SDH, and other SDHs. SDH preferentially
interconverts D-sorbitol (D-glucitol) and D-fructose,
but also interconverts L-iditol/L-sorbose and
galactitol/D-tagatose. SDH is NAD-dependent and is a
dimeric member of the SDR family. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 254
Score = 51.8 bits (124), Expect = 1e-07
Identities = 42/158 (26%), Positives = 75/158 (47%), Gaps = 16/158 (10%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TG+ GIG A++ G RV +A +L+ A ++I P+A I+++
Sbjct: 1 LDGKTALITGSARGIGRAFAQAYVREGARVAIADINLEAARATAAEI---GPAACAISLD 57
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYL 238
+ S+ + ++ S++ILV NA +F L T + ++ F +N ++
Sbjct: 58 VT--DQASIDRCVAALVDRWGSIDILVNNAALFDLAPIVDITRESYDRLFAINVSGTLFM 115
Query: 239 TLQLENALI---KGAKL--FARQQG----AATSIYCAT 267
+ A+I +G K+ A Q G A +YCAT
Sbjct: 116 MQAVARAMIAQGRGGKIINMASQAGRRGEALVGVYCAT 153
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 51.6 bits (124), Expect = 1e-07
Identities = 32/124 (25%), Positives = 54/124 (43%), Gaps = 4/124 (3%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI 177
+ L NA++TGA GIG A +LA G V L R+ + ++
Sbjct: 2 AQSLQGKNALITGAGRGIGRAVAIALAKEGVNVGLLARTEENLKAVAEEVEAYGVKVVIA 61
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLAH 235
+++ + V E+ + + S++IL+ NAG+ FG +E QVN +
Sbjct: 62 TADVS--DYEEVTAAIEQLKNELGSIDILINNAGISKFGKFLELDPAEWEKIIQVNLMGV 119
Query: 236 FYLT 239
+Y T
Sbjct: 120 YYAT 123
>gnl|CDD|187624 cd05366, meso-BDH-like_SDR_c, meso-2,3-butanediol
dehydrogenase-like, classical (c) SDRs. 2,3-butanediol
dehydrogenases (BDHs) catalyze the NAD+ dependent
conversion of 2,3-butanediol to acetonin; BDHs are
classified into types according to their
stereospecificity as to substrates and products.
Included in this subgroup are Klebsiella pneumonia
meso-BDH which catalyzes meso-2,3-butanediol to
D(-)-acetonin, and Corynebacterium glutamicum L-BDH
which catalyzes lX+)-2,3-butanediol to L(+)-acetonin.
This subgroup is comprised of classical SDRs with the
characteristic catalytic triad and NAD-binding motif.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 51.6 bits (124), Expect = 1e-07
Identities = 30/108 (27%), Positives = 57/108 (52%), Gaps = 3/108 (2%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AI+TGA GIG A LA G ++LA +L++A + + ++E +A+ ++
Sbjct: 5 AIITGAAQGIGRAIAERLAADGFNIVLADLNLEEAAKSTIQEISEA-GYNAVAVGADVTD 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
V+ ++ +KF S +++V NAG+ + + TE+ + + VN
Sbjct: 64 KDDVEALIDQAVEKFGSFDVMVNNAGIAPITPLLTITEEDLKKVYAVN 111
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 51.6 bits (124), Expect = 1e-07
Identities = 34/128 (26%), Positives = 58/128 (45%), Gaps = 16/128 (12%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDA-ISKILTEKPSAQCIAM 179
L A++TG ++GIG A A G + + LD+ DA +K EK +C+ +
Sbjct: 44 LKGKVALITGGDSGIGRAVAVLFAKEGADIAIV--YLDEHEDANETKQRVEKEGVKCLLI 101
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--------TEDGFETTFQVN 231
++ K EE ++ L+ILV NA F + T + + TF+ N
Sbjct: 102 PGDVSDEAFCKDAVEETVRELGRLDILVNNA-----AFQYPQQSLEDITAEQLDKTFKTN 156
Query: 232 HLAHFYLT 239
++F++T
Sbjct: 157 IYSYFHMT 164
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 51.3 bits (123), Expect = 2e-07
Identities = 36/139 (25%), Positives = 67/139 (48%), Gaps = 12/139 (8%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L AIVTG NTG+G A +LA G +I+ N ++ L EK + +
Sbjct: 12 SLDGKVAIVTGGNTGLGQGYAVALAKAGADIIITTH---GTNWDETRRLIEKEGRKVTFV 68
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFY 237
+++L + +S +K +E ++F ++ILV NAG + ++ + +N + ++
Sbjct: 69 QVDLTKPESAEKVVKEALEEFGKIDILVNNAGTIRRAPLLEYKDEDWNAVMDINLNSVYH 128
Query: 238 LTLQLENALIKGAKLFARQ 256
L+ + AK+ A+Q
Sbjct: 129 LSQAV-------AKVMAKQ 140
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 51.1 bits (123), Expect = 2e-07
Identities = 33/128 (25%), Positives = 56/128 (43%), Gaps = 21/128 (16%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L+ AI+TGA++GIG A+ A G +V++ R + + +++I E A +A +
Sbjct: 4 LNGKVAIITGASSGIGRAAAKLFAREGAKVVVGARRQAELDQLVAEIRAEGGEAVALAGD 63
Query: 181 LNLCRLKSVKKFAEEYQK--------KFRSLNILVLNAGVFG-LGFSH--TEDGFETTFQ 229
+ E Y K +F L+I NAG G +G + +G+ T
Sbjct: 64 VR----------DEAYAKALVALAVERFGGLDIAFNNAGTLGEMGPVAEMSLEGWRETLA 113
Query: 230 VNHLAHFY 237
N + F
Sbjct: 114 TNLTSAFL 121
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 50.7 bits (121), Expect = 2e-07
Identities = 41/131 (31%), Positives = 67/131 (51%), Gaps = 7/131 (5%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DLS A+VTGA+ GIG E AR L G V L ++K +A++ L E+
Sbjct: 3 DLSGRKALVTGASGGIGEEIARLLHAQGAIVGLHGTRVEKL-EALAAELGERVK----IF 57
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNHLAHFY 237
NL VK ++ + ++ILV NAG+ GL +++ +++ +VN A F
Sbjct: 58 PANLSDRDEVKALGQKAEADLEGVDILVNNAGITKDGLFVRMSDEDWDSVLEVNLTATFR 117
Query: 238 LTLQLENALIK 248
LT +L + +++
Sbjct: 118 LTRELTHPMMR 128
>gnl|CDD|226476 COG3967, DltE, Short-chain dehydrogenase involved in D-alanine
esterification of lipoteichoic acid and wall teichoic
acid (D-alanine transfer protein) [Cell envelope
biogenesis, outer membrane].
Length = 245
Score = 50.9 bits (122), Expect = 2e-07
Identities = 42/156 (26%), Positives = 67/156 (42%), Gaps = 24/156 (15%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILTEKPSAQCIAMELNL 183
++TG +GIG A+ G VI+ R+ L +A +I TE C + +
Sbjct: 9 LITGGASGIGLALAKRFLELGNTVIICGRNEERLAEAKAENPEIHTE----VCDVADRD- 63
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGV-FGLGFSHTEDGFET---TFQVNHLAHFYLT 239
S ++ E +K++ +LN+L+ NAG+ + ED + N LA LT
Sbjct: 64 ----SRRELVEWLKKEYPNLNVLINNAGIQRNEDLTGAEDLLDDAEQEIATNLLAPIRLT 119
Query: 240 L--------QLENALIKGAKLFARQQGAATSIYCAT 267
Q E +I + A A+T +YCAT
Sbjct: 120 ALLLPHLLRQPEATIINVSSGLAFVPMASTPVYCAT 155
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 50.5 bits (121), Expect = 3e-07
Identities = 29/92 (31%), Positives = 47/92 (51%), Gaps = 2/92 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL+ A+VTG++ GIG+ A LA G VIL R K A + + SA +A
Sbjct: 7 DLTGRRALVTGSSQGIGYALAEGLAQAGAEVILNGRDPAKLAAAAESLKGQGLSAHALAF 66
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG 211
++ +V+ + ++ + ++ILV NAG
Sbjct: 67 DVT--DHDAVRAAIDAFEAEIGPIDILVNNAG 96
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 50.5 bits (121), Expect = 3e-07
Identities = 27/92 (29%), Positives = 49/92 (53%), Gaps = 2/92 (2%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L+ N ++TG+ GIGF A LA +G +I+ + ++A A++K+ E A A
Sbjct: 7 LAGKNILITGSAQGIGFLLATGLAEYGAEIIINDITAERAELAVAKLRQEGIKA--HAAP 64
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
N+ + V+ E +K +++L+ NAG+
Sbjct: 65 FNVTHKQEVEAAIEHIEKDIGPIDVLINNAGI 96
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 50.3 bits (121), Expect = 3e-07
Identities = 28/93 (30%), Positives = 51/93 (54%), Gaps = 2/93 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DLS A+VTG + G+G + A +L G RV+L+ R ++ +A + + E + +
Sbjct: 9 DLSGKTALVTGGSRGLGLQIAEALGEAGARVVLSARKAEELEEAAAHL--EALGIDALWI 66
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ +++ AEE ++F ++ILV NAG
Sbjct: 67 AADVADEADIERLAEETLERFGHVDILVNNAGA 99
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 50.1 bits (120), Expect = 4e-07
Identities = 28/99 (28%), Positives = 49/99 (49%), Gaps = 2/99 (2%)
Query: 113 LQILHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKP 172
+ IL L+ A+VTG+ G+GFE AR+LA G V++ R+ A++ +
Sbjct: 1 MSILQRFSLAGQVALVTGSARGLGFEIARALAGAGAHVLVNGRNAATLEAAVAALRAAGG 60
Query: 173 SAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG 211
+A+ A+ ++ ++V + L+ILV N G
Sbjct: 61 AAE--ALAFDIADEEAVAAAFARIDAEHGRLDILVNNVG 97
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 50.4 bits (121), Expect = 4e-07
Identities = 30/116 (25%), Positives = 57/116 (49%), Gaps = 8/116 (6%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPS--AQCI 177
D + A++TGA +G G AR A G +++LA D DA+ + + E + A+ +
Sbjct: 3 DFAGKVAVITGAASGFGLAFARIGAALGMKLVLA----DVQQDALDRAVAELRAQGAEVL 58
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF--SHTEDGFETTFQVN 231
+ ++ V+ A+ ++F ++++L NAGV G ++ +E VN
Sbjct: 59 GVRTDVSDAAQVEALADAALERFGAVHLLFNNAGVGAGGLVWENSLADWEWVLGVN 114
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 51.1 bits (123), Expect = 4e-07
Identities = 33/134 (24%), Positives = 55/134 (41%), Gaps = 17/134 (12%)
Query: 116 LHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ 175
L G+ ++TGA++GIG TA +A G V L R+ + ++ +++I
Sbjct: 369 LVGK-----VVLITGASSGIGRATAIKVAEAGATVFLVARNGEALDELVAEI--RAKGGT 421
Query: 176 CIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG-------VFGLGFSHTEDGFETTF 228
A +L +V ++ + ++ LV NAG H D +E T
Sbjct: 422 AHAYTCDLTDSAAVDHTVKDILAEHGHVDYLVNNAGRSIRRSVENSTDRFH--D-YERTM 478
Query: 229 QVNHLAHFYLTLQL 242
VN+ L L L
Sbjct: 479 AVNYFGAVRLILGL 492
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 49.7 bits (119), Expect = 5e-07
Identities = 36/113 (31%), Positives = 54/113 (47%), Gaps = 3/113 (2%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
LSN AIVTGA+ GIG AR LA G V + A D + + E + IA++
Sbjct: 3 LSNKVAIVTGASRGIGAAIARRLAADGFAVAVNYAGSAAAADELVAEI-EAAGGRAIAVQ 61
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
++ +V + + + F +++LV NAGV LG + F+ T N
Sbjct: 62 ADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATN 114
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 49.7 bits (119), Expect = 5e-07
Identities = 29/95 (30%), Positives = 49/95 (51%), Gaps = 2/95 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+ AIVTGA GIG A +LA G V++A + + A +I+ + +A IA+
Sbjct: 3 RFDDKVAIVTGAAGGIGQAYAEALAREGASVVVADINAEGAERVAKQIVADGGTA--IAV 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFG 214
++++ S K A+ F ++ LV NA ++G
Sbjct: 61 QVDVSDPDSAKAMADATVSAFGGIDYLVNNAAIYG 95
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 49.9 bits (119), Expect = 5e-07
Identities = 31/93 (33%), Positives = 51/93 (54%), Gaps = 2/93 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+L+ A+VTGA +GIG E A LA G V +A + D AN +I K + I +
Sbjct: 4 NLNGKTAVVTGAASGIGKEIALELARAGAAVAIADLNQDGANAVADEI--NKAGGKAIGV 61
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+++ +V ++ ++F S++ILV NAG+
Sbjct: 62 AMDVTNEDAVNAGIDKVAERFGSVDILVSNAGI 94
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 49.3 bits (118), Expect = 6e-07
Identities = 27/91 (29%), Positives = 46/91 (50%), Gaps = 1/91 (1%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL A+VTG++ GIG +TA+ LA G V++ R + + + + A+
Sbjct: 3 DLPGKTALVTGSSRGIGADTAKILAGAGAHVVVNYRQKAPRANKVVAEIEAA-GGRASAV 61
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNA 210
+L +SV + +++F L+ LVLNA
Sbjct: 62 GADLTDEESVAALMDTAREEFGGLDALVLNA 92
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 49.4 bits (118), Expect = 6e-07
Identities = 31/124 (25%), Positives = 54/124 (43%), Gaps = 2/124 (1%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TGA+ GIG AR G V++ R D A ++ E P + +
Sbjct: 7 LDGQTALITGASKGIGLAIAREFLGLGADVLIVARDADALAQARDELAEEFPEREVHGLA 66
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYL 238
++ + + + + + L+ILV NAG + +TED + F+ N + F L
Sbjct: 67 ADVSDDEDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAFEL 126
Query: 239 TLQL 242
+
Sbjct: 127 SRYA 130
>gnl|CDD|187617 cd05359, ChcA_like_SDR_c, 1-cyclohexenylcarbonyl_coenzyme
A_reductase (ChcA)_like, classical (c) SDRs. This
subgroup contains classical SDR proteins, including
members identified as 1-cyclohexenylcarbonyl coenzyme A
reductase. ChcA of Streptomyces collinus is implicated
in the final reduction step of shikimic acid to
ansatrienin. ChcA shows sequence similarity to the SDR
family of NAD-binding proteins, but it lacks the
conserved Tyr of the characteristic catalytic site. This
subgroup also contains the NADH-dependent
enoyl-[acyl-carrier-protein(ACP)] reductase FabL from
Bacillus subtilis. This enzyme participates in bacterial
fatty acid synthesis, in type II fatty-acid synthases
and catalyzes the last step in each elongation cycle.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 242
Score = 49.3 bits (118), Expect = 7e-07
Identities = 35/136 (25%), Positives = 61/136 (44%), Gaps = 12/136 (8%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACR-SLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VTG + GIG A LA G V++ R S D A + ++I E+ + + + ++
Sbjct: 1 ALVTGGSRGIGKAIALRLAERGADVVINYRKSKDAAAEVAAEI--EELGGKAVVVRADVS 58
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNA--GVFGLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
+ + V++ +++F L++LV NA G F T ++ N A + Q
Sbjct: 59 QPQDVEEMFAAVKERFGRLDVLVSNAAAGAFRPLSELTPAHWDAKMNTNLKALVHCAQQ- 117
Query: 243 ENALIKGAKLFARQQG 258
AKL + G
Sbjct: 118 ------AAKLMRERGG 127
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 50.0 bits (120), Expect = 9e-07
Identities = 34/134 (25%), Positives = 58/134 (43%), Gaps = 17/134 (12%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
+VTGA +GIG ETA + A G V+ + A I A A +++
Sbjct: 318 VVVTGAGSGIGRETALAFAREGAEVVASDIDEAAAERTAELI--RAAGAVAHAYRVDVSD 375
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG---FSHTEDGFETTFQVNHLAHFYLTLQL 242
+++ FAE + + +I+V NAG+ G+ + + ++ VN +
Sbjct: 376 ADAMEAFAEWVRAEHGVPDIVVNNAGI-GMAGGFLDTSAEDWDRVLDVN----LW----- 425
Query: 243 ENALIKGAKLFARQ 256
+I G +LF RQ
Sbjct: 426 --GVIHGCRLFGRQ 437
>gnl|CDD|187587 cd05326, secoisolariciresinol-DH_like_SDR_c, secoisolariciresinol
dehydrogenase (secoisolariciresinol-DH)-like, classical
(c) SDRs. Podophyllum secoisolariciresinol-DH is a homo
tetrameric, classical SDR that catalyzes the
NAD-dependent conversion of (-)-secoisolariciresinol to
(-)-matairesinol via a (-)-lactol intermediate.
(-)-Matairesinol is an intermediate to various
8'-lignans, including the cancer-preventive mammalian
lignan, and those involved in vascular plant defense.
This subgroup also includes rice momilactone A synthase
which catalyzes the conversion of
3beta-hydroxy-9betaH-pimara-7,15-dien-19,6beta-olide
into momilactone A, Arabidopsis ABA2 which during
abscisic acid (ABA) biosynthesis, catalyzes the
conversion of xanthoxin to abscisic aldehyde and, maize
Tasselseed2 which participate in the maize sex
determination pathway. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering). In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering)
contributing to the active site; while substrate binding
is in the C-terminal region, which determines
specificity. The standard reaction mechanism is a
4-pro-S hydride transfer and proton relay involving the
conserved Tyr and Lys, a water molecule stabilized by
Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 249
Score = 49.0 bits (117), Expect = 1e-06
Identities = 40/132 (30%), Positives = 55/132 (41%), Gaps = 12/132 (9%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AI+TG +GIG TAR A HG RV++A D +DA + E + ++
Sbjct: 7 AIITGGASGIGEATARLFAKHGARVVIA----DIDDDAGQAVAAELGDPDISFVHCDVTV 62
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFG------LGFSHTEDGFETTFQVNHLAHFYLT 239
V+ + +F L+I+ NAGV G L S E FE VN F T
Sbjct: 63 EADVRAAVDTAVARFGRLDIMFNNAGVLGAPCYSILETSLEE--FERVLDVNVYGAFLGT 120
Query: 240 LQLENALIKGAK 251
+I K
Sbjct: 121 KHAARVMIPAKK 132
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 49.1 bits (117), Expect = 1e-06
Identities = 34/117 (29%), Positives = 55/117 (47%), Gaps = 7/117 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AI+TGA GIG E A + A G V+++ + D AN + +I Q A ++
Sbjct: 14 AIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQL--GGQAFACRCDITS 71
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG---FSHTEDGFETTFQVNHLAHFYLT 239
+ + A+ K ++ILV NAG G G F F +++N + F+L+
Sbjct: 72 EQELSALADFALSKLGKVDILVNNAG--GGGPKPFDMPMADFRRAYELNVFSFFHLS 126
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 48.6 bits (116), Expect = 1e-06
Identities = 32/108 (29%), Positives = 52/108 (48%), Gaps = 4/108 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA GIGF A+ L G +V + + + A A K+ K + IA++ ++
Sbjct: 5 ALVTGAGQGIGFAIAKRLVEDGFKVAIVDYNEETAQAAADKL--SKDGGKAIAVKADVSD 62
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVN 231
V + F LN++V NAGV + TE+ F+ + +N
Sbjct: 63 RDQVFAAVRQVVDTFGDLNVVVNNAGVAPTTPIETITEEQFDKVYNIN 110
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 48.5 bits (115), Expect = 2e-06
Identities = 43/132 (32%), Positives = 65/132 (49%), Gaps = 11/132 (8%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRV-ILACRSLDKANDAISKILTEKPSAQCI 177
++L A+VTGA+ GIG A LA G V I R+ A++ I +I + A I
Sbjct: 2 KNLDGKVALVTGASRGIGRAIAMRLANDGALVAIHYGRNKQAADETIREIESNGGKAFLI 61
Query: 178 AMELNLCRLKSVKKFAEEYQKKFR------SLNILVLNAGVFGLGF--SHTEDGFETTFQ 229
+LN + VKK E+ + + + ++ILV NAG+ G + TE+ F+
Sbjct: 62 EADLN--SIDGVKKLVEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIMA 119
Query: 230 VNHLAHFYLTLQ 241
VN A F+L Q
Sbjct: 120 VNIKAPFFLIQQ 131
>gnl|CDD|187609 cd05351, XR_like_SDR_c, xylulose reductase-like, classical (c)
SDRs. Members of this subgroup include proteins
identified as L-xylulose reductase (XR) and carbonyl
reductase; they are members of the SDR family. XR,
catalyzes the NADP-dependent reduction of L-xyulose and
other sugars. Tetrameric mouse carbonyl reductase is
involved in the metabolism of biogenic and xenobiotic
carbonyl compounds. This subgroup also includes
tetrameric chicken liver D-erythrulose reductase, which
catalyzes the reduction of D-erythrulose to D-threitol.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser).
Length = 244
Score = 47.9 bits (114), Expect = 2e-06
Identities = 41/165 (24%), Positives = 74/165 (44%), Gaps = 23/165 (13%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
D + A+VTGA GIG T ++LA G RV+ R+ + ++ E P + + +
Sbjct: 4 DFAGKRALVTGAGKGIGRATVKALAKAGARVVAVSRT----QADLDSLVRECPGIEPVCV 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFY 237
+L S EE +++LV NA V L T++ F+ +F VN A +
Sbjct: 60 DL------SDWDATEEALGSVGPVDLLVNNAAVAILQPFLEVTKEAFDRSFDVNVRAVIH 113
Query: 238 LTL----QLENALIKGAKLFARQQGAAT-----SIYCAT--SLDL 271
++ + + G+ + Q + ++YC+T +LD+
Sbjct: 114 VSQIVARGMIARGVPGSIVNVSSQASQRALTNHTVYCSTKAALDM 158
>gnl|CDD|187634 cd08929, SDR_c4, classical (c) SDR, subgroup 4. This subgroup has
a canonical active site tetrad and a typical Gly-rich
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 226
Score = 47.5 bits (113), Expect = 2e-06
Identities = 37/143 (25%), Positives = 54/143 (37%), Gaps = 19/143 (13%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILTEKPSAQCIAMELN 182
A+VTGA+ GIG TAR L G RV + R L A E +A ++
Sbjct: 3 ALVTGASRGIGEATARLLHAEGYRVGICARDEARLAAAAAQ------ELEGVLGLAGDVR 56
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQV--NHLAHFYLTL 240
V++ + ++ F L+ LV NAGV + E + N FY
Sbjct: 57 --DEADVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEELTPEEWRLVLDTNLTGAFYCIH 114
Query: 241 QLENALIKGAKLFARQQGAATSI 263
+ A L R G ++
Sbjct: 115 K---AAP---ALLRRGGGTIVNV 131
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 47.8 bits (114), Expect = 2e-06
Identities = 27/124 (21%), Positives = 57/124 (45%), Gaps = 7/124 (5%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVIL-ACRSLDKANDAISKILTEKPSAQCIA 178
L + +VTG+ GIG A LA G V++ A + ++ N+ + + ++ + I
Sbjct: 3 SLKDKVVVVTGSGRGIGRAIAVRLAKEGSLVVVNAKKRAEEMNETLKMV--KENGGEGIG 60
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGF-ETTFQVNHLAH 235
+ ++ + + A+ ++ +ILV NAG+ GL F + +D + + +
Sbjct: 61 VLADVSTREGCETLAKATIDRYGVADILVNNAGL-GLFSPFLNVDDKLIDKHISTDFKSV 119
Query: 236 FYLT 239
Y +
Sbjct: 120 IYCS 123
>gnl|CDD|187647 cd08943, R1PA_ADH_SDR_c, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase, classical (c) SDRs. This family has
bifunctional proteins with an N-terminal aldolase and a
C-terminal classical SDR domain. One member is
identified as a rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase. The SDR domain has a canonical SDR
glycine-rich NAD(P) binding motif and a match to the
characteristic active site triad. However, it lacks an
upstream active site Asn typical of SDRs. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 47.8 bits (114), Expect = 2e-06
Identities = 23/88 (26%), Positives = 42/88 (47%), Gaps = 3/88 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTG +GIG A+ LA G V++A +D + + + ++ ++
Sbjct: 4 ALVTGGASGIGLAIAKRLAAEGAAVVVA--DIDPEIAEKVAEAAQGGP-RALGVQCDVTS 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVF 213
V+ E+ +F L+I+V NAG+
Sbjct: 61 EAQVQSAFEQAVLEFGGLDIVVSNAGIA 88
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 47.7 bits (113), Expect = 3e-06
Identities = 26/87 (29%), Positives = 44/87 (50%), Gaps = 1/87 (1%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVTG GIG +LA G +V++ S +A + + L K A++ ++ +
Sbjct: 9 AIVTGGAKGIGKAITVALAQEGAKVVINYNSSKEAAENLVNEL-GKEGHDVYAVQADVSK 67
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ + EE F ++ILV NAG+
Sbjct: 68 VEDANRLVEEAVNHFGKVDILVNNAGI 94
>gnl|CDD|187614 cd05356, 17beta-HSD1_like_SDR_c, 17-beta-hydroxysteroid
dehydrogenases (17beta-HSDs) types -1, -3, and -12,
-like, classical (c) SDRs. This subgroup includes
various 17-beta-hydroxysteroid dehydrogenases and
3-ketoacyl-CoA reductase, these are members of the SDR
family, and contain the canonical active site tetrad and
glycine-rich NAD-binding motif of the classical SDRs.
3-ketoacyl-CoA reductase (KAR, aka 17beta-HSD type 12,
encoded by HSD17B12) acts in fatty acid elongation;
17beta- hydroxysteroid dehydrogenases are isozymes that
catalyze activation and inactivation of estrogen and
androgens, and include members of the SDR family.
17beta-estradiol dehydrogenase (aka 17beta-HSD type 1,
encoded by HSD17B1) converts estrone to estradiol.
Estradiol is the predominant female sex hormone.
17beta-HSD type 3 (aka testosterone
17-beta-dehydrogenase 3, encoded by HSD17B3) catalyses
the reduction of androstenedione to testosterone, it
also accepts estrogens as substrates. This subgroup also
contains a putative steroid dehydrogenase let-767 from
Caenorhabditis elegans, mutation in which results in
hypersensitivity to cholesterol limitation. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 239
Score = 47.6 bits (114), Expect = 3e-06
Identities = 29/95 (30%), Positives = 42/95 (44%), Gaps = 16/95 (16%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ--CIAMELNL 183
A+VTGA GIG A LA G VIL R+ +K + +I EK + IA + +
Sbjct: 4 AVVTGATDGIGKAYAEELAKRGFNVILISRTQEKLDAVAKEIE-EKYGVETKTIAADFS- 61
Query: 184 CRLKSVKKFAEEYQKKFRSLN-----ILVLNAGVF 213
+ Y++ + L ILV N G+
Sbjct: 62 -------AGDDIYERIEKELEGLDIGILVNNVGIS 89
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 47.3 bits (113), Expect = 3e-06
Identities = 23/87 (26%), Positives = 45/87 (51%), Gaps = 2/87 (2%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A++TGA++GIG TA + A G + L RS D +++ + A ++ +L
Sbjct: 9 ALITGASSGIGKATALAFAKAGWDLALVARSQDALEALAAELRSTGVKAAAYSI--DLSN 66
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
+++ E ++F ++L+ NAG+
Sbjct: 67 PEAIAPGIAELLEQFGCPDVLINNAGM 93
>gnl|CDD|187629 cd05371, HSD10-like_SDR_c, 17hydroxysteroid dehydrogenase type 10
(HSD10)-like, classical (c) SDRs. HSD10, also known as
amyloid-peptide-binding alcohol dehydrogenase (ABAD),
was previously identified as a L-3-hydroxyacyl-CoA
dehydrogenase, HADH2. In fatty acid metabolism, HADH2
catalyzes the third step of beta-oxidation, the
conversion of a hydroxyl to a keto group in the
NAD-dependent oxidation of L-3-hydroxyacyl CoA. In
addition to alcohol dehydrogenase and HADH2 activites,
HSD10 has steroid dehydrogenase activity. Although the
mechanism is unclear, HSD10 is implicated in the
formation of amyloid beta-petide in the brain (which is
linked to the development of Alzheimer's disease).
Although HSD10 is normally concentrated in the
mitochondria, in the presence of amyloid beta-peptide it
translocates into the plasma membrane, where it's action
may generate cytotoxic aldehydes and may lower estrogen
levels through its use of 17-beta-estradiol as a
substrate. HSD10 is a member of the SRD family, but
differs from other SDRs by the presence of two
insertions of unknown function. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 252
Score = 47.3 bits (113), Expect = 3e-06
Identities = 22/87 (25%), Positives = 36/87 (41%), Gaps = 6/87 (6%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTG +G+G T L G +V++ K C + +++
Sbjct: 5 AVVTGGASGLGLATVERLLAQGAKVVILDLPNSPGETV------AKLGDNCRFVPVDVTS 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
K VK + KF L+I+V AG+
Sbjct: 59 EKDVKAALALAKAKFGRLDIVVNCAGI 85
>gnl|CDD|187592 cd05331, DH-DHB-DH_SDR_c, 2,3 dihydro-2,3 dihydrozybenzoate
dehydrogenases, classical (c) SDRs. 2,3 dihydro-2,3
dihydrozybenzoate dehydrogenase shares the
characteristics of the classical SDRs. This subgroup
includes Escherichai coli EntA which catalyzes the
NAD+-dependent oxidation of
2,3-dihydro-2,3-dihydroxybenzoate to
2,3-dihydroxybenzoate during biosynthesis of the
siderophore Enterobactin. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 47.1 bits (112), Expect = 4e-06
Identities = 37/137 (27%), Positives = 50/137 (36%), Gaps = 19/137 (13%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
IVTGA GIG AR L G VI L P L++
Sbjct: 1 VIVTGAAQGIGRAVARHLLQAGATVIALDLPFVLL-LEYGDPLRLTP--------LDVAD 51
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH---TEDGFETTFQVNHLAHFYLTLQL 242
+V++ + ++ LV AGV G + TED +E TF VN F L +
Sbjct: 52 AAAVREVCSRLLAEHGPIDALVNCAGVLRPGATDPLSTED-WEQTFAVNVTGVFNLLQAV 110
Query: 243 ENALIKGAKLFARQQGA 259
+ R+ GA
Sbjct: 111 APHMK------DRRTGA 121
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 47.3 bits (113), Expect = 4e-06
Identities = 29/90 (32%), Positives = 45/90 (50%), Gaps = 9/90 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA++GIG TAR LA G V A R +DK + + S + L++
Sbjct: 6 ALVTGASSGIGKATARRLAAQGYTVYGAARRVDK--------MEDLASLGVHPLSLDVTD 57
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGL 215
S+K + + +++LV NAG +G
Sbjct: 58 EASIKAAVDTIIAEEGRIDVLVNNAG-YGS 86
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 47.3 bits (113), Expect = 4e-06
Identities = 26/92 (28%), Positives = 42/92 (45%), Gaps = 5/92 (5%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L+ ++TGA+ GIG A + A GC + L R D +A++ L
Sbjct: 4 HLAGKRVLITGASKGIGAAAAEAFAAEGCHLHLVARDADAL-EALAADLRAAHGVDVAVH 62
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG 211
L+L ++ ++ A E ++ILV NAG
Sbjct: 63 ALDLSSPEAREQLAAEAG----DIDILVNNAG 90
>gnl|CDD|187625 cd05367, SPR-like_SDR_c, sepiapterin reductase (SPR)-like,
classical (c) SDRs. Human SPR, a member of the SDR
family, catalyzes the NADP-dependent reduction of
sepiaptern to 7,8-dihydrobiopterin (BH2). In addition to
SPRs, this subgroup also contains Bacillus cereus yueD,
a benzil reductase, which catalyzes the stereospecific
reduction of benzil to (S)-benzoin. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 241
Score = 46.9 bits (112), Expect = 4e-06
Identities = 27/127 (21%), Positives = 47/127 (37%), Gaps = 12/127 (9%)
Query: 127 IVTGANTGIGFETARSLA--LHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
I+TGA+ GIG A L V+L RS + + + L + +L
Sbjct: 3 ILTGASRGIGRALAEELLKRGSPSVVVLLARSEEPLQ-ELKEELRPGLRVTTVK--ADLS 59
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGV---FGLGFSHTEDGFETTFQVNHLAHFYLTLQ 241
V++ E +K ++L+ NAG D + F +N +
Sbjct: 60 DAAGVEQLLEAIRKLDGERDLLINNAGSLGPVSKIEFIDLDELQKYFDLN----LTSPVC 115
Query: 242 LENALIK 248
L + L++
Sbjct: 116 LTSTLLR 122
>gnl|CDD|187641 cd08936, CR_SDR_c, Porcine peroxisomal carbonyl reductase like,
classical (c) SDR. This subgroup contains porcine
peroxisomal carbonyl reductase and similar proteins. The
porcine enzyme efficiently reduces retinals. This
subgroup also includes human dehydrogenase/reductase
(SDR family) member 4 (DHRS4), and human DHRS4L1. DHRS4
is a peroxisomal enzyme with 3beta-hydroxysteroid
dehydrogenase activity; it catalyzes the reduction of
3-keto-C19/C21-steroids into 3beta-hydroxysteroids more
efficiently than it does the retinal reduction. The
human DHRS4 gene cluster contains DHRS4, DHRS4L2 and
DHRS4L1. DHRS4L2 and DHRS4L1 are paralogs of DHRS4,
DHRS4L2 being the most recent member. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 47.2 bits (112), Expect = 4e-06
Identities = 34/131 (25%), Positives = 59/131 (45%), Gaps = 12/131 (9%)
Query: 116 LHGRD-LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA 174
+ RD L+N A+VT + GIG AR LA G V+++ R + A++ + E
Sbjct: 2 VTRRDPLANKVALVTASTDGIGLAIARRLAQDGAHVVVSSRKQQNVDRAVATLQGEG--- 58
Query: 175 QCIAMELNLC---RLKSVKKFAEEYQKKFRSLNILVLNAGV---FGLGFSHTEDGFETTF 228
+++ +C + + ++ ++ILV NA V FG TE+ ++
Sbjct: 59 --LSVTGTVCHVGKAEDRERLVATAVNLHGGVDILVSNAAVNPFFGNILDSTEEVWDKIL 116
Query: 229 QVNHLAHFYLT 239
VN A +T
Sbjct: 117 DVNVKATALMT 127
>gnl|CDD|187644 cd08940, HBDH_SDR_c, d-3-hydroxybutyrate dehydrogenase (HBDH),
classical (c) SDRs. DHBDH, an NAD+ -dependent enzyme,
catalyzes the interconversion of D-3-hydroxybutyrate and
acetoacetate. It is a classical SDR, with the canonical
NAD-binding motif and active site tetrad. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 47.1 bits (112), Expect = 4e-06
Identities = 30/121 (24%), Positives = 55/121 (45%), Gaps = 12/121 (9%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTG+ +GIG AR+LA G ++L +A+ L K + + +L +
Sbjct: 5 ALVTGSTSGIGLGIARALAAAGANIVLNGFGDAAEIEAVRAGLAAKHGVKVLYHGADLSK 64
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTE-------DGFETTFQVNHLAHFYL 238
+++ Q++F ++ILV NAG+ H + ++ +N A F+
Sbjct: 65 PAAIEDMVAYAQRQFGGVDILVNNAGI-----QHVAPIEDFPTEKWDAIIALNLSAVFHT 119
Query: 239 T 239
T
Sbjct: 120 T 120
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 47.1 bits (112), Expect = 4e-06
Identities = 31/115 (26%), Positives = 56/115 (48%), Gaps = 7/115 (6%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE-KPSAQCIA 178
L+ AIVTGA +GIG TA+ A G RV++A D+ +A ++ + A
Sbjct: 2 RLAGRVAIVTGAGSGIGRATAKLFAREGARVVVA----DRDAEAAERVAAAIAAGGRAFA 57
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
+ ++ ++V+ + ++ L++LV NAG G + E ++ +VN
Sbjct: 58 RQGDVGSAEAVEALVDFVAARWGRLDVLVNNAGFGCGGTVVTTDEADWDAVMRVN 112
>gnl|CDD|188170 TIGR01832, kduD, 2-deoxy-D-gluconate 3-dehydrogenase. This model
describes 2-deoxy-D-gluconate 3-dehydrogenase (also
called 2-keto-3-deoxygluconate oxidoreductase), a member
of the family of short-chain-alcohol dehydrogenases
(pfam00106). This protein has been characterized in
Erwinia chrysanthemi as an enzyme of pectin degradation
[Energy metabolism, Biosynthesis and degradation of
polysaccharides].
Length = 248
Score = 47.1 bits (112), Expect = 4e-06
Identities = 36/133 (27%), Positives = 65/133 (48%), Gaps = 10/133 (7%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A+VTGANTG+G A LA G ++ A RS + ++ ++ E + +++
Sbjct: 2 SLEGKVALVTGANTGLGQGIAVGLAEAGADIVGAGRS--EPSETQQQV--EALGRRFLSL 57
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF----GLGFSHTEDGFETTFQVNHLAH 235
+L ++++K + ++F ++ILV NAG+ FS E ++ VN +
Sbjct: 58 TADLSDIEAIKALVDSAVEEFGHIDILVNNAGIIRRADAEEFS--EKDWDDVMNVNLKSV 115
Query: 236 FYLTLQLENALIK 248
F+LT +K
Sbjct: 116 FFLTQAAAKHFLK 128
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 47.2 bits (113), Expect = 4e-06
Identities = 29/87 (33%), Positives = 43/87 (49%), Gaps = 10/87 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA++GIG TA LA G RV R+ +A P +EL++
Sbjct: 7 ALVTGASSGIGRATAEKLARAGYRVFGTSRNPARA----------APIPGVELLELDVTD 56
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
SV+ +E + +++LV NAGV
Sbjct: 57 DASVQAAVDEVIARAGRIDVLVNNAGV 83
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 46.9 bits (112), Expect = 5e-06
Identities = 31/123 (25%), Positives = 57/123 (46%), Gaps = 5/123 (4%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILAC-RSLDKANDAISKILTEKPSAQCI 177
L A+VTG G+G AR+ A G ++ C R+ +K +++ E A+ +
Sbjct: 2 GRLDGKVALVTGGTQGLGAAIARAFAERGAAGLVICGRNAEKGEAQAAEL--EALGAKAV 59
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAH 235
++ +L ++ ++ + F L+ LV AG+ G + + F+ F VN A
Sbjct: 60 FVQADLSDVEDCRRVVAAADEAFGRLDALVNAAGLTDRGTILDTSPELFDRHFAVNVRAP 119
Query: 236 FYL 238
F+L
Sbjct: 120 FFL 122
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 46.8 bits (112), Expect = 5e-06
Identities = 34/162 (20%), Positives = 65/162 (40%), Gaps = 34/162 (20%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A++TG +G A+ LA G +V + R+ +KA +++I + + +A+
Sbjct: 7 SLKGKVAVITGGGGVLGGAMAKELARAGAKVAILDRNQEKAEAVVAEI--KAAGGEALAV 64
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG---------------------VFGLGFS 218
+ ++ +S+++ ++ + F +IL+ AG F L
Sbjct: 65 KADVLDKESLEQARQQILEDFGPCDILINGAGGNHPKATTDNEFHELIEPTKTFFDL--- 121
Query: 219 HTEDGFETTFQVNHLAHFYLTLQLENALIKGAKLFARQQGAA 260
E+GFE F +N L T AK ++G
Sbjct: 122 -DEEGFEFVFDLNLLGTLLPTQVF-------AKDMVGRKGGN 155
>gnl|CDD|187597 cd05338, DHRS1_HSDL2-like_SDR_c, human dehydrogenase/reductase (SDR
family) member 1 (DHRS1) and human hydroxysteroid
dehydrogenase-like protein 2 (HSDL2), classical (c)
SDRs. This subgroup includes human DHRS1 and human
HSDL2 and related proteins. These are members of the
classical SDR family, with a canonical Gly-rich
NAD-binding motif and the typical YXXXK active site
motif. However, the rest of the catalytic tetrad is not
strongly conserved. DHRS1 mRNA has been detected in many
tissues, liver, heart, skeletal muscle, kidney and
pancreas; a longer transcript is predominantly expressed
in the liver , a shorter one in the heart. HSDL2 may
play a part in fatty acid metabolism, as it is found in
peroxisomes. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 246
Score = 46.6 bits (111), Expect = 6e-06
Identities = 37/133 (27%), Positives = 59/133 (44%), Gaps = 16/133 (12%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKIL----------TE 170
LS A VTGA+ GIG A LA G V++A ++ + ++ +K L E
Sbjct: 1 LSGKVAFVTGASRGIGRAIALRLAKAGATVVVAAKTASEGDNGSAKSLPGTIEETAEEIE 60
Query: 171 KPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDG----FET 226
Q + + +++ V+ E +F L+ILV NAG + S ED F+
Sbjct: 61 AAGGQALPIVVDVRDEDQVRALVEATVDQFGRLDILVNNAGA--IWLSLVEDTPAKRFDL 118
Query: 227 TFQVNHLAHFYLT 239
+VN + L+
Sbjct: 119 MQRVNLRGTYLLS 131
>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
Length = 259
Score = 46.7 bits (111), Expect = 6e-06
Identities = 25/87 (28%), Positives = 45/87 (51%), Gaps = 3/87 (3%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
N +VT ++ GIGF AR L G RV+++ R+ + A+ ++ K + A++ +L
Sbjct: 2 NVLVTASSRGIGFNVARELLKKGARVVISSRNEENLEKALKEL---KEYGEVYAVKADLS 58
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAG 211
+K +E + ++ LV NAG
Sbjct: 59 DKDDLKNLVKEAWELLGGIDALVWNAG 85
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 46.3 bits (110), Expect = 6e-06
Identities = 29/114 (25%), Positives = 46/114 (40%), Gaps = 6/114 (5%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L +TG G+G TA LA G RV L R + L P+
Sbjct: 4 SLQGKVVAITGGFGGLGRATAAWLAARGARVALIGRGAAPLSQT----LPGVPADALRIG 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
++L ++ ++ +E ++F L+ LV AG F G D ++ + VN
Sbjct: 60 GIDLVDPQAARRAVDEVNRQFGRLDALVNIAGAFVWGTIADGDADTWDRMYGVN 113
>gnl|CDD|187584 cd05323, ADH_SDR_c_like, insect type alcohol dehydrogenase
(ADH)-like, classical (c) SDRs. This subgroup contains
insect type ADH, and 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) type I; these proteins are
classical SDRs. ADH catalyzes the NAD+-dependent
oxidation of alcohols to aldehydes/ketones. This
subgroup is distinct from the zinc-dependent alcohol
dehydrogenases of the medium chain
dehydrogenase/reductase family, and evolved in fruit
flies to allow the digestion of fermenting fruit.
15-PGDH catalyzes the NAD-dependent interconversion of
(5Z,13E)-(15S)-11alpha,15-dihydroxy-9-oxoprost-13-enoate
and (5Z,13E)-11alpha-hydroxy-9,15-dioxoprost-13-enoate,
and has a typical SDR glycine-rich NAD-binding motif,
which is not fully present in ADH. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 244
Score = 46.1 bits (110), Expect = 7e-06
Identities = 26/111 (23%), Positives = 51/111 (45%), Gaps = 6/111 (5%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
AI+TG +GIG TA+ L G +V + ++ A +++ P + ++ ++
Sbjct: 2 VAIITGGASGIGLATAKLLLKKGAKVAIL--DRNENPGAAAELQAINPKVKATFVQCDVT 59
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFG----LGFSHTEDGFETTFQVN 231
+ + ++ +KF ++IL+ NAG+ L +E T VN
Sbjct: 60 SWEQLAAAFKKAIEKFGRVDILINNAGILDEKSYLFAGKLPPPWEKTIDVN 110
>gnl|CDD|227435 COG5104, PRP40, Splicing factor [RNA processing and modification].
Length = 590
Score = 47.0 bits (111), Expect = 8e-06
Identities = 26/95 (27%), Positives = 41/95 (43%), Gaps = 11/95 (11%)
Query: 21 WEERVTADGCVYYVNHATEGTQWTHPR---TGVKKKVSGDLPLGWEKSVSEDGKITFYNK 77
WEE DG +YY N T + W P+ G ++ + D W++ + DGK+ +YN
Sbjct: 17 WEELKAPDGRIYYYNKRTGKSSWEKPKELLKGSEEDLDVD---PWKECRTADGKVYYYNS 73
Query: 78 DTHVKTYTDPRIVFAKEEKENPLDIRQKYDHSTKA 112
T + P E K+ QK+D +
Sbjct: 74 ITRESRWKIP-----PERKKVEPIAEQKHDERSMI 103
Score = 33.1 bits (75), Expect = 0.22
Identities = 16/37 (43%), Positives = 21/37 (56%), Gaps = 1/37 (2%)
Query: 11 SDSEDELPP-GWEERVTADGCVYYVNHATEGTQWTHP 46
SE++L W+E TADG VYY N T ++W P
Sbjct: 47 KGSEEDLDVDPWKECRTADGKVYYYNSITRESRWKIP 83
Score = 30.8 bits (69), Expect = 1.2
Identities = 13/42 (30%), Positives = 23/42 (54%)
Query: 55 SGDLPLGWEKSVSEDGKITFYNKDTHVKTYTDPRIVFAKEEK 96
SG+ WE+ + DG+I +YNK T ++ P+ + E+
Sbjct: 10 SGEARSEWEELKAPDGRIYYYNKRTGKSSWEKPKELLKGSEE 51
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 46.5 bits (111), Expect = 8e-06
Identities = 28/116 (24%), Positives = 53/116 (45%), Gaps = 5/116 (4%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI 177
L+ +VTGA GIG E AR L G ++ L + +++ + +
Sbjct: 4 MTSLAGKVVVVTGAARGIGAELARRLHARGAKLALVDLEEAELAALAAEL---GGDDRVL 60
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG-FSHTE-DGFETTFQVN 231
+ ++ L +++ AEE ++F ++++V NAG+ G + + D F VN
Sbjct: 61 TVVADVTDLAAMQAAAEEAVERFGGIDVVVANAGIASGGSVAQVDPDAFRRVIDVN 116
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 46.1 bits (110), Expect = 9e-06
Identities = 26/98 (26%), Positives = 42/98 (42%), Gaps = 6/98 (6%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
DL +TG GIG TAR+LA G RV + A + +++ +
Sbjct: 1 DDLRGKVVAITGGARGIGLATARALAALGARVAIGDLDEALAKETAAEL------GLVVG 54
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG 216
L++ S F + + +++LV NAGV +G
Sbjct: 55 GPLDVTDPASFAAFLDAVEADLGPIDVLVNNAGVMPVG 92
>gnl|CDD|169556 PRK08703, PRK08703, short chain dehydrogenase; Provisional.
Length = 239
Score = 45.7 bits (108), Expect = 1e-05
Identities = 36/121 (29%), Positives = 58/121 (47%), Gaps = 11/121 (9%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILTEKPSAQCIAMELNL 183
+VTGA+ G+G + A++ A G VIL R L+K DAI + +P A I +L
Sbjct: 10 LVTGASQGLGEQVAKAYAAAGATVILVARHQKKLEKVYDAIVEAGHPEPFA--IRFDLMS 67
Query: 184 CRLKSVKKFAEEYQKKFRS-LNILVLNAGVF----GLGFSHTEDGFETTFQVNHLAHFYL 238
K ++FA + + L+ +V AG F L F + + +++N +A L
Sbjct: 68 AEEKEFEQFAATIAEATQGKLDGIVHCAGYFYALSPLDFQTVAE-WVNQYRINTVAPMGL 126
Query: 239 T 239
T
Sbjct: 127 T 127
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 45.9 bits (109), Expect = 1e-05
Identities = 25/95 (26%), Positives = 49/95 (51%), Gaps = 3/95 (3%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDK-ANDAISKILTEKPSAQCI 177
DL ++TG +TG+G A +V++ RS ++ AND +I +K + I
Sbjct: 3 SDLEGKVVVITGGSTGLGRAMAVRFGKEKAKVVINYRSDEEEANDVAEEI--KKAGGEAI 60
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
A++ ++ V + K+F +L++++ NAG+
Sbjct: 61 AVKGDVTVESDVVNLIQTAVKEFGTLDVMINNAGI 95
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 45.7 bits (109), Expect = 1e-05
Identities = 22/93 (23%), Positives = 42/93 (45%), Gaps = 2/93 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL + ++TG G+G A LA G ++ L + +K +A+++ +
Sbjct: 2 DLKDKVIVITGGAQGLGRAMAEYLAQKGAKLALIDLNQEKLEEAVAEC--GALGTEVRGY 59
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
N+ + V+ + + F LN L+ NAG+
Sbjct: 60 AANVTDEEDVEATFAQIAEDFGQLNGLINNAGI 92
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 45.7 bits (109), Expect = 1e-05
Identities = 38/152 (25%), Positives = 61/152 (40%), Gaps = 24/152 (15%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
+L+ A+VTG GIG T L G RV+ RS + +A
Sbjct: 5 LELAGKRALVTGGTKGIGAATVARLLEAGARVVTTARSRPDDLPE---------GVEFVA 55
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG---VFGLGFSH-TEDGFETTFQVNHLA 234
+L + A ++ ++ILV G GF+ T++ ++ +N LA
Sbjct: 56 A--DLTTAEGCAAVARAVLERLGGVDILVHVLGGSSAPAGGFAALTDEEWQDELNLNLLA 113
Query: 235 HFYLTLQLENALIKGAKLFARQQGAA---TSI 263
++L+ AL+ G + AR G TSI
Sbjct: 114 ----AVRLDRALLPG--MIARGSGVIIHVTSI 139
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 46.4 bits (110), Expect = 2e-05
Identities = 29/95 (30%), Positives = 53/95 (55%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
+ L+ A VTG GIG ETAR LA G V+LA +L+ A ++I + + + +A
Sbjct: 410 KTLARRVAFVTGGAGGIGRETARRLAAEGAHVVLADLNLEAAEAVAAEINGQFGAGRAVA 469
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF 213
+++++ ++VK + + ++I+V NAG+
Sbjct: 470 LKMDVTDEQAVKAAFADVALAYGGVDIVVNNAGIA 504
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 45.4 bits (108), Expect = 2e-05
Identities = 31/110 (28%), Positives = 50/110 (45%), Gaps = 7/110 (6%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVTGA++G G T LA G VI R+ +K + +S+ +L++
Sbjct: 6 AIVTGASSGFGLLTTLELAKKGYLVIATMRNPEKQENLLSQATQLNLQQNIKVQQLDVTD 65
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED----GFETTFQVN 231
S+ F + K+ +++LV NAG GF E+ + F+ N
Sbjct: 66 QNSIHNF-QLVLKEIGRIDLLVNNAGYANGGF--VEEIPVEEYRKQFETN 112
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 45.2 bits (107), Expect = 2e-05
Identities = 33/129 (25%), Positives = 56/129 (43%), Gaps = 12/129 (9%)
Query: 116 LHGRDLSNYNAIVTGANTGIGFETARSLALHGCRV-ILACRSLDKANDAISKILTEKPSA 174
R A++TG GIG A + G +V +L + ++A K L EK
Sbjct: 1 YSMR-FKGKVALITGGTRGIGRAIAEAFLREGAKVAVLYNSAENEA-----KELREKGV- 53
Query: 175 QCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGL-GFSH-TEDGFETTFQVNH 232
++ ++ VKK E +K+F +++LV NAG+ L F E+ + ++N
Sbjct: 54 --FTIKCDVGNRDQVKKSKEVVEKEFGRVDVLVNNAGIMYLMPFEEFDEEKYNKMIKINL 111
Query: 233 LAHFYLTLQ 241
Y T +
Sbjct: 112 NGAIYTTYE 120
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 45.6 bits (108), Expect = 2e-05
Identities = 24/97 (24%), Positives = 50/97 (51%), Gaps = 5/97 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
+VTGA GIG + A G +V++A R++++A + + + A+ +++
Sbjct: 8 VLVTGAAGGIGRAACQRFARAGDQVVVADRNVERARERADSLGPDH-----HALAMDVSD 62
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED 222
+++ E+ ++F +++LV NAGV + T D
Sbjct: 63 EAQIREGFEQLHREFGRIDVLVNNAGVTDPTMTATLD 99
Score = 42.1 bits (99), Expect = 3e-04
Identities = 38/157 (24%), Positives = 65/157 (41%), Gaps = 17/157 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
+TG GIG A A G R+++ R + A K L E + ++++ ++
Sbjct: 272 VAITGGARGIGRAVADRFAAAGDRLLIIDRDAEGA-----KKLAEALGDEHLSVQADITD 326
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG---VFGLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
+V+ + Q ++ L++LV NAG VF + + F + VN F
Sbjct: 327 EAAVESAFAQIQARWGRLDVLVNNAGIAEVFKPSLEQSAEDFTRVYDVNLSGAF------ 380
Query: 243 ENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSY 279
A + A Q G ++ SL L+LP +Y
Sbjct: 381 --ACARAAARLMSQGGVIVNLGSIASL-LALPPRNAY 414
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 44.8 bits (106), Expect = 2e-05
Identities = 27/94 (28%), Positives = 41/94 (43%), Gaps = 15/94 (15%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI---AMELN 182
A+VTGA GIG AR L G RVI + + +K E+ EL+
Sbjct: 5 ALVTGAKRGIGSAIARELLNDGYRVIAT----YFSGNDCAKDWFEEYGFTEDQVRLKELD 60
Query: 183 LC----RLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ +++ + EE ++ILV NAG+
Sbjct: 61 VTDTEECAEALAEIEEEEG----PVDILVNNAGI 90
>gnl|CDD|187654 cd08951, DR_C-13_KR_SDR_c_like, daunorubicin C-13 ketoreductase
(KR), classical (c)-like SDRs. Daunorubicin is a
clinically important therapeutic compound used in some
cancer treatments. Daunorubicin C-13 ketoreductase is
member of the classical SDR family with a canonical
glycine-rich NAD(P)-binding motif, but lacking a
complete match to the active site tetrad characteristic
of this group. The critical Tyr, plus the Lys and
upstream Asn are present, but the catalytic Ser is
replaced, generally by Gln. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 260
Score = 44.4 bits (105), Expect = 3e-05
Identities = 33/113 (29%), Positives = 50/113 (44%), Gaps = 7/113 (6%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLK 187
+TG++ G+G AR+L G V+L RS +A DA K + I +L L
Sbjct: 12 ITGSSDGLGLAAARTLLHQGHEVVLHARSQKRAADA--KAACPGAAGVLIG---DLSSLA 66
Query: 188 SVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED-GFETTFQVNHLAHFYLT 239
+K A++ + ++ NAG+ T D G VN LA + LT
Sbjct: 67 ETRKLADQVN-AIGRFDAVIHNAGILSGPNRKTPDTGIPAMVAVNVLAPYVLT 118
Score = 33.2 bits (76), Expect = 0.14
Identities = 18/53 (33%), Positives = 26/53 (49%)
Query: 256 QQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQDEALATKLWKLSEEM 308
+QG T ++ A S D SG YF + P A++D L KL + EE+
Sbjct: 203 EQGHLTQVWLAESDDPQALTSGGYFYHRRLQEPHPASEDSRLQEKLVQALEEV 255
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 44.3 bits (105), Expect = 3e-05
Identities = 23/92 (25%), Positives = 36/92 (39%), Gaps = 1/92 (1%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ-CIAMELNLC 184
A +TGA G+G AR +A G +V L + DA + + A ++
Sbjct: 2 AFITGAAGGLGRAIARRMAEQGAKVFLTDINDAAGLDAFAAEINAAHGEGVAFAAVQDVT 61
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG 216
+ + L++LV NAGV G
Sbjct: 62 DEAQWQALLAQAADAMGGLSVLVNNAGVGSFG 93
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 44.5 bits (106), Expect = 3e-05
Identities = 29/117 (24%), Positives = 57/117 (48%), Gaps = 4/117 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TGA+ G+G TAR+ A G +V+L R + ++I + +A+ ++
Sbjct: 11 VVITGASAGVGRATARAFARRGAKVVLLARGEEGLEALAAEI--RAAGGEALAVVADVAD 68
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQVNHLAHFYLTL 240
++V+ A+ +++ ++ V NA V FG T + F +V +L + TL
Sbjct: 69 AEAVQAAADRAEEELGPIDTWVNNAMVTVFGPFEDVTPEEFRRVTEVTYLGVVHGTL 125
>gnl|CDD|131468 TIGR02415, 23BDH, acetoin reductases. One member of this family,
as characterized in Klebsiella terrigena, is described
as able to interconvert acetoin + NADH with
meso-2,3-butanediol + NAD(+). It is also called capable
of irreversible reduction of diacetyl with NADH to
acetoin. Blomqvist, et al. decline to specify either EC
1.1.1.4 which is (R,R)-butanediol dehydrogenase, or EC
1.1.1.5, which is acetoin dehydrogenase without a
specified stereochemistry, for this enzyme. This enzyme
is a homotetramer in the family of short chain
dehydrogenases (pfam00106). Another member of this
family, from Corynebacterium glutamicum, is called
L-2,3-butanediol dehydrogenase (PMID:11577733) [Energy
metabolism, Fermentation].
Length = 254
Score = 44.4 bits (105), Expect = 3e-05
Identities = 29/111 (26%), Positives = 50/111 (45%), Gaps = 10/111 (9%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTG GIG A LA G V +A + + A + +I + + +A +L++
Sbjct: 3 ALVTGGAQGIGKGIAERLAKDGFAVAVADLNEETAKETAKEI--NQAGGKAVAYKLDVSD 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH-----TEDGFETTFQVN 231
V ++ +KF +++V NAGV TE+ + + VN
Sbjct: 61 KDQVFSAIDQAAEKFGGFDVMVNNAGV---APITPILEITEEELKKVYNVN 108
>gnl|CDD|181668 PRK09135, PRK09135, pteridine reductase; Provisional.
Length = 249
Score = 44.1 bits (105), Expect = 3e-05
Identities = 39/143 (27%), Positives = 58/143 (40%), Gaps = 15/143 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKIL--TEKPSAQCIAMELNL 183
A++TG IG AR+L G RV + DA++ L SA + +L
Sbjct: 9 ALITGGARRIGAAIARTLHAAGYRVAIHYHRSAAEADALAAELNALRPGSAAALQADLL- 67
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAHFYLTL 240
++ + F L+ LV NA F LG S TE ++ F N A F+L+
Sbjct: 68 -DPDALPELVAACVAAFGRLDALVNNASSFYPTPLG-SITEAQWDDLFASNLKAPFFLSQ 125
Query: 241 QLENALIKGAKLFARQQGAATSI 263
A +Q+GA +I
Sbjct: 126 AA-------APQLRKQRGAIVNI 141
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 43.8 bits (104), Expect = 4e-05
Identities = 39/153 (25%), Positives = 68/153 (44%), Gaps = 21/153 (13%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELN---L 183
IVTG +GIG + LA G ++ RS ++ ++ +P A+ + ++L
Sbjct: 11 IVTGGASGIGAAISLRLAEEGAIPVIFGRS-APDDEFAEELRALQPRAEFVQVDLTDDAQ 69
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVF-GLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
CR +V++ ++ + ++ LV NAGV G+G + F + + N L H+Y+
Sbjct: 70 CR-DAVEQTVAKFGR----IDGLVNNAGVNDGVGLEAGREAFVASLERN-LIHYYVMAHY 123
Query: 243 ENALIK---------GAKLFARQQGAATSIYCA 266
+K +K QG TS Y A
Sbjct: 124 CLPHLKASRGAIVNISSKTALTGQG-GTSGYAA 155
>gnl|CDD|187591 cd05330, cyclohexanol_reductase_SDR_c, cyclohexanol reductases,
including levodione reductase, classical (c) SDRs.
Cyloclohexanol reductases,including
(6R)-2,2,6-trimethyl-1,4-cyclohexanedione (levodione)
reductase of Corynebacterium aquaticum, catalyze the
reversible oxidoreduction of hydroxycyclohexanone
derivatives. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 43.7 bits (103), Expect = 5e-05
Identities = 26/114 (22%), Positives = 52/114 (45%), Gaps = 3/114 (2%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TG +G+G TA LA G ++ L + + A + +L P A+ + ++ ++
Sbjct: 7 LITGGGSGLGLATAVRLAKEGAKLSLVDLNEEGLEAAKAALLEIAPDAEVLLIKADVSDE 66
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFG---LGFSHTEDGFETTFQVNHLAHFY 237
V+ + + ++F ++ NAG+ G L D F+ +N FY
Sbjct: 67 AQVEAYVDATVEQFGRIDGFFNNAGIEGKQNLTEDFGADEFDKVVSINLRGVFY 120
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 44.1 bits (105), Expect = 6e-05
Identities = 28/92 (30%), Positives = 45/92 (48%), Gaps = 15/92 (16%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLD--KANDAISKILTEKPSAQCI---AME 180
A+VTGA GIG A LA G V+ LD A +A++ + A + A+
Sbjct: 213 ALVTGAARGIGAAIAEVLARDGAHVVC----LDVPAAGEALAAV------ANRVGGTALA 262
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
L++ + + AE ++ L+I+V NAG+
Sbjct: 263 LDITAPDAPARIAEHLAERHGGLDIVVHNAGI 294
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 43.1 bits (102), Expect = 9e-05
Identities = 28/105 (26%), Positives = 47/105 (44%), Gaps = 12/105 (11%)
Query: 114 QILHGRDLSNYNAIVTGA-NTGIGFETARSLALHGCRVILA---CRSLDKANDAISKILT 169
+L G+ +VT A TGIG TAR G RV+++ R L + D ++
Sbjct: 13 GLLAGK-----VVLVTAAAGTGIGSATARRALEEGARVVISDIHERRLGETADELAA--- 64
Query: 170 EKPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFG 214
E + A+ ++ V + ++ L++LV NAG+ G
Sbjct: 65 ELGLGRVEAVVCDVTSEAQVDALIDAAVERLGRLDVLVNNAGLGG 109
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 42.6 bits (101), Expect = 9e-05
Identities = 38/123 (30%), Positives = 59/123 (47%), Gaps = 13/123 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A++TGA+ GIG AR LA ++L R ++ + ++ E P A ++L
Sbjct: 6 ALITGASRGIGAAIARELAPTH-TLLLGGRPAERLD----ELAAELPGAT--PFPVDLTD 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYLTLQLE 243
+++ E+ L++LV NAGV LG T D + T +VN +A LT L
Sbjct: 59 PEAIAAAVEQ----LGRLDVLVHNAGVADLGPVAESTVDEWRATLEVNVVAPAELTRLLL 114
Query: 244 NAL 246
AL
Sbjct: 115 PAL 117
>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 = 42.4 bits (100), Expect = 1e-04
Identities = 35/127 (27%), Positives = 57/127 (44%), Gaps = 14/127 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILTEKPSAQCIAMELN 182
A+VTGA+ GIG E AR+LA G RV L R+ L + + + A+ +
Sbjct: 3 ALVTGASRGIGIEIARALARDGYRVSLGLRNPEDLAALSASGGDVE---------AVPYD 53
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYLTL 240
+ + + + +F +++LV NAG+ ++ E F +N +A LT
Sbjct: 54 ARDPEDARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSINVIAPAELTR 113
Query: 241 QLENALI 247
L AL
Sbjct: 114 ALLPALR 120
>gnl|CDD|187665 cd09805, type2_17beta_HSD-like_SDR_c, human 17beta-hydroxysteroid
dehydrogenase type 2 (type 2 17beta-HSD)-like, classical
(c) SDRs. 17beta-hydroxysteroid dehydrogenases are a
group of isozymes that catalyze activation and
inactivation of estrogen and androgens. This
classical-SDR subgroup includes the human proteins: type
2 17beta-HSD, type 6 17beta-HSD, type 2 11beta-HSD,
dehydrogenase/reductase SDR family member 9,
short-chain dehydrogenase/reductase family 9C member 7,
3-hydroxybutyrate dehydrogenase type 1, and retinol
dehydrogenase 5. SDRs are a functionally diverse family
of oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 281
Score = 42.7 bits (101), Expect = 1e-04
Identities = 39/177 (22%), Positives = 69/177 (38%), Gaps = 31/177 (17%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TG ++G G A+ L G V+ C L K +K L S + ++L++ +
Sbjct: 4 LITGCDSGFGNLLAKKLDSLGFTVLAGC--LTKNGPG-AKELRRVCSDRLRTLQLDVTKP 60
Query: 187 KSVKKFAEEYQKKF--RSLNILVLNAGVFGLGFSHTEDGFETTF-------QVNHLAHFY 237
+ +K+ A+ ++ + L LV NAG+ G G D +VN
Sbjct: 61 EQIKRAAQWVKEHVGEKGLWGLVNNAGILGFG----GDEELLPMDDYRKCMEVNLFGTVE 116
Query: 238 LTLQLENALIKGAK--------LFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRC 286
+T L++ AK + R A YCA+ + F++ R
Sbjct: 117 VTKAFL-PLLRRAKGRVVNVSSMGGRVPFPAGGAYCASKAAVEA------FSDSLRR 166
>gnl|CDD|187590 cd05329, TR_SDR_c, tropinone reductase-I and II (TR-1, and
TR-II)-like, classical (c) SDRs. This subgroup includes
TR-I and TR-II; these proteins are members of the SDR
family. TRs catalyze the NADPH-dependent reductions of
the 3-carbonyl group of tropinone, to a beta-hydroxyl
group. TR-I and TR-II produce different stereoisomers
from tropinone, TR-I produces tropine
(3alpha-hydroxytropane), and TR-II, produces
pseudotropine (sigma-tropine, 3beta-hydroxytropane).
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 251
Score = 42.1 bits (99), Expect = 2e-04
Identities = 33/126 (26%), Positives = 52/126 (41%), Gaps = 6/126 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTG GIG+ LA G V R+ K D EK + ++
Sbjct: 9 ALVTGGTKGIGYAIVEELAGLGAEVYTCARN-QKELDECLTEWREK-GFKVEGSVCDVSS 66
Query: 186 LKSVKKFAEEYQKKFRS-LNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYLTLQL 242
++ + F LNILV NAG + +TE+ + N A ++L+ +L
Sbjct: 67 RSERQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEAAYHLS-RL 125
Query: 243 ENALIK 248
+ L+K
Sbjct: 126 AHPLLK 131
>gnl|CDD|169389 PRK08339, PRK08339, short chain dehydrogenase; Provisional.
Length = 263
Score = 42.1 bits (99), Expect = 2e-04
Identities = 22/53 (41%), Positives = 27/53 (50%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKP 172
DLS A T ++ GIGF AR LA G VIL R+ + A KI +E
Sbjct: 5 DLSGKLAFTTASSKGIGFGVARVLARAGADVILLSRNEENLKKAREKIKSESN 57
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 41.9 bits (98), Expect = 2e-04
Identities = 39/142 (27%), Positives = 66/142 (46%), Gaps = 12/142 (8%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI 177
GR L + A+VTG ++GIG A + A G V ++ +++ + K + E+ + +
Sbjct: 45 GR-LKDRKALVTGGDSGIGRAAAIAYAREGADVAISYLPVEEEDAQDVKKIIEECGRKAV 103
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAG-------VFGLGFSHTEDGFETTFQV 230
+ +L K + E K L+I+ L AG + L T + F+ TF +
Sbjct: 104 LLPGDLSDEKFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADL----TSEQFQKTFAI 159
Query: 231 NHLAHFYLTLQLENALIKGAKL 252
N A F+LT + L KGA +
Sbjct: 160 NVFALFWLTQEAIPLLPKGASI 181
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 41.8 bits (98), Expect = 2e-04
Identities = 44/159 (27%), Positives = 76/159 (47%), Gaps = 10/159 (6%)
Query: 87 PRIVFAKEEKENP---LDIRQKYDHSTKALQILHGRDLSNYNAIVTGANTGIGFETARSL 143
P+ F ++ +E P +++ K DH ++ + GR L A++TGA++GIG TA +
Sbjct: 18 PQPPFPEQTQEAPGTIHEMQPKPDHGEQSYKGF-GR-LQGRKALITGADSGIGRATAIAF 75
Query: 144 ALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSL 203
A G + L ++ + A L + + +A+ +L ++ E K+ L
Sbjct: 76 AREGADIALNYLPEEEQDAAEVVQLIQAEGRKAVALPGDLKDEAFCRQLVERAVKELGGL 135
Query: 204 NILVLNAG----VFGLGFSHTEDGFETTFQVNHLAHFYL 238
+ILV AG V + TE F+ TF+ N A F+L
Sbjct: 136 DILVNIAGKQTAVKDIADITTEQ-FDATFKTNVYAMFWL 173
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 41.7 bits (98), Expect = 2e-04
Identities = 36/151 (23%), Positives = 61/151 (40%), Gaps = 20/151 (13%)
Query: 121 LSNYNAIVTGAN--TGIGFETARSLALHGCRVILAC-----RSLDKANDAISKIL----T 169
L N A+VTG + GIG + LA G + + + D +I
Sbjct: 4 LKNKVAVVTGVSRLDGIGAAICKELAEAGADIFFTYWTAYDKEMPWGVDQDEQIQLQEEL 63
Query: 170 EKPSAQCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV-FGLGFSH-TEDGFETT 227
K + +MEL+L + + K+ + ++ +ILV NA FS+ T + +
Sbjct: 64 LKNGVKVSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNAAYSTNNDFSNLTAEELDKH 123
Query: 228 FQVNHLAHFYLTLQLENALIKGAKLFARQQG 258
+ VN A L+ Q A+ F ++ G
Sbjct: 124 YMVNVRATTLLSSQF-------ARGFDKKSG 147
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 41.6 bits (98), Expect = 3e-04
Identities = 21/93 (22%), Positives = 42/93 (45%), Gaps = 2/93 (2%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
L A++TGA+ GIGF A++ A G ++ + + + ++ A
Sbjct: 7 SLKGKIALITGASYGIGFAIAKAYAKAGATIVFNDINQELVDKGLAAYRELGIEAH--GY 64
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ V+ + +K+ ++ILV NAG+
Sbjct: 65 VCDVTDEDGVQAMVSQIEKEVGVIDILVNNAGI 97
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 41.2 bits (96), Expect = 3e-04
Identities = 25/96 (26%), Positives = 46/96 (47%), Gaps = 8/96 (8%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACR---SLDKANDAISKILTEKPSAQC 176
DL A++TGA+TGIG A + G +V +A R +L+K D I +
Sbjct: 6 DLHGKRALITGASTGIGKRVALAYVEAGAQVAIAARHLDALEKLADEIGTS-----GGKV 60
Query: 177 IAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ + ++ + + V ++ + ++I V NAG+
Sbjct: 61 VPVCCDVSQHQQVTSMLDQVTAELGGIDIAVCNAGI 96
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 41.2 bits (97), Expect = 3e-04
Identities = 37/154 (24%), Positives = 59/154 (38%), Gaps = 27/154 (17%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
D S + +VTGA++GIG A +LA G RV+ A R + + C +
Sbjct: 6 DFSGKSVLVTGASSGIGRACAVALAQRGARVVAAAR-------NAAALDRLAGETGCEPL 58
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGL--GFSHTEDGFETTFQVNHLAHFY 237
L++ +++ + + LV AG+ L T +GF+ VN
Sbjct: 59 RLDVGDDAAIRAALAAAG----AFDGLVNCAGIASLESALDMTAEGFDRVMAVN------ 108
Query: 238 LTLQLENALIKGAKLFAR---QQGAATSIYCATS 268
A + A+ AR G SI +S
Sbjct: 109 ----ARGAAL-VARHVARAMIAAGRGGSIVNVSS 137
>gnl|CDD|187600 cd05341, 3beta-17beta-HSD_like_SDR_c, 3beta17beta hydroxysteroid
dehydrogenase-like, classical (c) SDRs. This subgroup
includes members identified as 3beta17beta
hydroxysteroid dehydrogenase, 20beta hydroxysteroid
dehydrogenase, and R-alcohol dehydrogenase. These
proteins exhibit the canonical active site tetrad and
glycine rich NAD(P)-binding motif of the classical SDRs.
17beta-dehydrogenases are a group of isozymes that
catalyze activation and inactivation of estrogen and
androgens, and include members of the SDR family. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 247
Score = 40.8 bits (96), Expect = 4e-04
Identities = 30/121 (24%), Positives = 45/121 (37%), Gaps = 21/121 (17%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE--KPSAQCI 177
L AIVTG G+G AR L G +V+L S IL E + +A +
Sbjct: 2 RLKGKVAIVTGGARGLGLAHARLLVAEGAKVVL------------SDILDEEGQAAAAEL 49
Query: 178 AMELNLCRLKSV-----KKFAEEYQKKFRSLNILVLNAGVFGLGFSHTE--DGFETTFQV 230
L + ++ F L++LV NAG+ G T + + +
Sbjct: 50 GDAARFFHLDVTDEDGWTAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDI 109
Query: 231 N 231
N
Sbjct: 110 N 110
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 40.6 bits (95), Expect = 5e-04
Identities = 22/94 (23%), Positives = 37/94 (39%), Gaps = 13/94 (13%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
L + AIVTG + GIG L G VI + + +
Sbjct: 2 LGLKDKVAIVTGGSQGIGKAVVNRLKEEGSNVINF--DIKEPSYNDVDYF---------- 49
Query: 179 MELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
++++ + V K + K+ ++ILV NAG+
Sbjct: 50 -KVDVSNKEQVIKGIDYVISKYGRIDILVNNAGI 82
>gnl|CDD|187649 cd08945, PKR_SDR_c, Polyketide ketoreductase, classical (c) SDR.
Polyketide ketoreductase (KR) is a classical SDR with a
characteristic NAD-binding pattern and active site
tetrad. Aromatic polyketides include various aromatic
compounds of pharmaceutical interest. Polyketide KR,
part of the type II polyketide synthase (PKS) complex,
is comprised of stand-alone domains that resemble the
domains found in fatty acid synthase and multidomain
type I PKS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 258
Score = 40.6 bits (95), Expect = 6e-04
Identities = 25/94 (26%), Positives = 41/94 (43%), Gaps = 8/94 (8%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA +GIG AR L G RV + R + + ++ A C
Sbjct: 6 ALVTGATSGIGLAIARRLGKEGLRVFVCARGEEGLATTVKELREAGVEADGRT-----CD 60
Query: 186 LKS---VKKFAEEYQKKFRSLNILVLNAGVFGLG 216
++S ++ ++ +++LV NAG G G
Sbjct: 61 VRSVPEIEALVAAAVARYGPIDVLVNNAGRSGGG 94
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 40.3 bits (95), Expect = 6e-04
Identities = 21/86 (24%), Positives = 39/86 (45%), Gaps = 3/86 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
+VTGA GIG A A G RV+L RS + ++ +++ + +A+ +L
Sbjct: 11 VVVTGAAQGIGRGVALRAAAEGARVVLVDRS-ELVHEVAAEL--RAAGGEALALTADLET 67
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG 211
+ + F +++L+ N G
Sbjct: 68 YAGAQAAMAAAVEAFGRIDVLINNVG 93
>gnl|CDD|133446 cd01078, NAD_bind_H4MPT_DH, NADP binding domain of methylene
tetrahydromethanopterin dehydrogenase. Methylene
Tetrahydromethanopterin Dehydrogenase (H4MPT DH) NADP
binding domain. NADP-dependent H4MPT DH catalyzes the
dehydrogenation of methylene- H4MPT and
methylene-tetrahydrofolate (H4F) with NADP+ as cofactor.
H4F and H4MPT are both cofactors that carry the
one-carbon units between the formyl and methyl oxidation
level. H4F and H4MPT are structurally analogous to each
other with respect to the pterin moiety, but each has
distinct side chain. H4MPT is present only in anaerobic
methanogenic archaea and aerobic methylotrophic
proteobacteria. H4MPT seems to have evolved
independently from H4F and functions as a distinct
carrier in C1 metabolism. Amino acid DH-like
NAD(P)-binding domains are members of the Rossmann fold
superfamily and include glutamate, leucine, and
phenylalanine DHs, methylene tetrahydrofolate DH,
methylene-tetrahydromethanopterin DH,
methylene-tetrahydropholate DH/cyclohydrolase, Shikimate
DH-like proteins, malate oxidoreductases, and glutamyl
tRNA reductase. Amino acid DHs catalyze the deamination
of amino acids to keto acids with NAD(P)+ as a cofactor.
The NAD(P)-binding Rossmann fold superfamily includes a
wide variety of protein families including NAD(P)-
binding domains of alcohol DHs, tyrosine-dependent
oxidoreductases, glyceraldehyde-3-phosphate DH,
lactate/malate DHs, formate/glycerate DHs, siroheme
synthases, 6-phosphogluconate DH, amino acid DHs,
repressor rex, NAD-binding potassium channel domain,
CoA-binding, and ornithine cyclodeaminase-like domains.
These domains have an alpha-beta-alpha configuration.
NAD binding involves numerous hydrogen and van der Waals
contacts.
Length = 194
Score = 39.7 bits (93), Expect = 8e-04
Identities = 22/53 (41%), Positives = 29/53 (54%), Gaps = 1/53 (1%)
Query: 111 KALQILHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDA 163
KAL+ L G+DL A+V G +G A LA G RV+L R L++A A
Sbjct: 17 KALE-LMGKDLKGKTAVVLGGTGPVGQRAAVLLAREGARVVLVGRDLERAQKA 68
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 39.9 bits (93), Expect = 8e-04
Identities = 25/98 (25%), Positives = 48/98 (48%), Gaps = 4/98 (4%)
Query: 115 ILHGRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA 174
IL L A+VTG +TG+G A LA GC ++ ++ + + I ++
Sbjct: 2 ILDAFSLEGKVAVVTGCDTGLGQGMALGLAEAGCDIVGI--NIVEPTETIEQV--TALGR 57
Query: 175 QCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ +++ +L ++ + E +F ++ILV NAG+
Sbjct: 58 RFLSLTADLRKIDGIPALLERAVAEFGHIDILVNNAGL 95
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 39.6 bits (93), Expect = 0.001
Identities = 22/89 (24%), Positives = 36/89 (40%), Gaps = 3/89 (3%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME-LNL 183
VTGA +GIG TA LA G + L R D ++ L++
Sbjct: 2 RCFVTGAASGIGRATALRLAAQGAELFLTDRDADGLAQTVADARAL--GGTVPEHRALDI 59
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+V FA + S+++++ AG+
Sbjct: 60 SDYDAVAAFAADIHAAHGSMDVVMNIAGI 88
>gnl|CDD|187642 cd08937, DHB_DH-like_SDR_c,
1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase (DHB DH)-like, classical (c) SDR. DHB DH
(aka 1,2-dihydroxycyclohexa-3,5-diene-1-carboxylate
dehydrogenase) catalyzes the NAD-dependent conversion of
1,2-dihydroxycyclohexa-3,4-diene carboxylate to a
catechol. This subgroup also contains Pseudomonas putida
F1 CmtB, 2,3-dihydroxy-2,3-dihydro-p-cumate
dehydrogenase, the second enzyme in the pathway for
catabolism of p-cumate catabolism. This subgroup shares
the glycine-rich NAD-binding motif of the classical SDRs
and shares the same catalytic triad; however, the
upstream Asn implicated in cofactor binding or catalysis
in other SDRs is generally substituted by a Ser. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 256
Score = 39.4 bits (92), Expect = 0.001
Identities = 34/142 (23%), Positives = 59/142 (41%), Gaps = 14/142 (9%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA--QCIAMELNL 183
+VTGA GIG A LA G RV+L RS + + ++L E +A +L
Sbjct: 7 VVVTGAAQGIGRGVAERLAGEGARVLLVDRS-----ELVHEVLAEILAAGDAAHVHTADL 61
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDGFETTFQVNHLAHFYLTLQ 241
+ ++F +++L+ N G ++ + H E E + + TL
Sbjct: 62 ETYAGAQGVVRAAVERFGRVDVLINNVGGTIWAKPYEHYE---EEQIEAEIRRSLFPTLW 118
Query: 242 LENALIKGAKLFARQQGAATSI 263
A++ + RQQG ++
Sbjct: 119 CCRAVL--PHMLERQQGVIVNV 138
>gnl|CDD|180343 PRK05993, PRK05993, short chain dehydrogenase; Provisional.
Length = 277
Score = 39.6 bits (93), Expect = 0.001
Identities = 13/32 (40%), Positives = 19/32 (59%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLD 158
++TG ++GIG AR+L G RV CR +
Sbjct: 8 LITGCSSGIGAYCARALQSDGWRVFATCRKEE 39
>gnl|CDD|227632 COG5322, COG5322, Predicted dehydrogenase [General function
prediction only].
Length = 351
Score = 39.9 bits (93), Expect = 0.001
Identities = 17/60 (28%), Positives = 21/60 (35%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCI 177
G DLS + GA I AR LA L R + N +L E+ I
Sbjct: 162 GIDLSQATVAIVGATGDIASAIARWLAPKVGVKELLLRDAEARNRQRLTLLQEELGRGKI 221
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 39.1 bits (92), Expect = 0.002
Identities = 36/141 (25%), Positives = 65/141 (46%), Gaps = 18/141 (12%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
++TGA++G+G AR A G + L R D+ + +++L P + L++
Sbjct: 4 KILITGASSGLGAGMAREFAAKGRDLALCARRTDRLEELKAELLARYPGIKVAVAALDVN 63
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGV-----FGLGFSHT-EDGFETTFQVNHLAHFYL 238
V + E++ + L+ +++NAG+ G G + ET F V LA
Sbjct: 64 DHDQVFEVFAEFRDELGGLDRVIVNAGIGKGARLGTGKFWANKATAETNF-VAALA---- 118
Query: 239 TLQLENALIKGAKLFARQQGA 259
Q E A+ ++F R+QG+
Sbjct: 119 --QCEAAM----EIF-REQGS 132
>gnl|CDD|234422 TIGR03971, SDR_subfam_1, oxidoreductase, SDR family. Members of
this protein subfamily are putative oxidoreductases
belonging to the larger SDR family. Members of the
present subfamily may occur several to a genome and are
largely restricted to genomes that contain members of
families TIGR03962, TIGR03967, and TIGR03969. Many
members have been annotated by homology as carveol
dehydrogenases.
Length = 265
Score = 39.1 bits (91), Expect = 0.002
Identities = 31/119 (26%), Positives = 53/119 (44%), Gaps = 13/119 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVIL--ACRSLD---------KANDAISKILTEKPSA 174
A +TGA G G A LA G +I C L + + + L E
Sbjct: 6 AFITGAARGQGRAHAVRLAAEGADIIAIDLCAPLSDYPTYPLATREDLDETARLVEALGR 65
Query: 175 QCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVN 231
+ +A + ++ L V+ E+ ++F L+++V NAGV G S +E+ ++T +N
Sbjct: 66 KVLARKADVRDLAEVRAVVEDGVEQFGRLDVVVANAGVLSYGRSWELSEEQWDTVLDIN 124
>gnl|CDD|187626 cd05368, DHRS6_like_SDR_c, human DHRS6-like, classical (c) SDRs.
Human DHRS6, and similar proteins. These proteins are
classical SDRs, with a canonical active site tetrad and
a close match to the typical Gly-rich NAD-binding motif.
Human DHRS6 is a cytosolic type 2 (R)-hydroxybutyrate
dehydrogenase, which catalyses the conversion of
(R)-hydroxybutyrate to acetoacetate. Also included in
this subgroup is Escherichia coli UcpA (upstream cys P).
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction. Note: removed :
needed to make this chiodl smaller when drew final
trees: rmeoved text form description: Other proteins in
this subgroup include Thermoplasma acidophilum
aldohexose dehydrogenase, which has high dehydrogenase
activity against D-mannose, Bacillus subtilis BacC
involved in the biosynthesis of the dipeptide bacilysin
and its antibiotic moiety anticapsin, Sphingomonas
paucimobilis strain B90 LinC, involved in the
degradation of hexachlorocyclohexane isomers...... P).
Length = 241
Score = 39.0 bits (91), Expect = 0.002
Identities = 25/108 (23%), Positives = 40/108 (37%), Gaps = 13/108 (12%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A++T A GIG A + A G VI N+ K L P L++
Sbjct: 5 ALITAAAQGIGRAIALAFAREGANVIAT-----DINEEKLKELERGP--GITTRVLDVTD 57
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVN 231
+ V A+E +++L AG G +D ++ +N
Sbjct: 58 KEQVAALAKE----EGRIDVLFNCAGFVHHGSILDCEDDDWDFAMNLN 101
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 38.9 bits (91), Expect = 0.002
Identities = 23/90 (25%), Positives = 43/90 (47%), Gaps = 2/90 (2%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLK 187
+TGA +G+G A A G R+ LA + ++ + K+L E ++
Sbjct: 5 ITGAASGLGRAIALRWAREGWRLALADVN-EEGGEETLKLLRE-AGGDGFYQRCDVRDYS 62
Query: 188 SVKKFAEEYQKKFRSLNILVLNAGVFGLGF 217
+ A+ ++K+ ++++V NAGV GF
Sbjct: 63 QLTALAQACEEKWGGIDVIVNNAGVASGGF 92
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 39.0 bits (91), Expect = 0.002
Identities = 24/87 (27%), Positives = 41/87 (47%), Gaps = 1/87 (1%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TGA+ GIG TA A G V L A +A+ + + + + +A+ ++
Sbjct: 5 MIITGASRGIGAATALLAAERGYAVCLNYLRNRDAAEAVVQAIRRQ-GGEALAVAADVAD 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
V + E ++ L+ LV NAG+
Sbjct: 64 EADVLRLFEAVDRELGRLDALVNNAGI 90
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 38.8 bits (91), Expect = 0.002
Identities = 16/43 (37%), Positives = 19/43 (44%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKAN 161
L+ AIVTG T IG AR+L G RV + D
Sbjct: 2 IGLAGKVAIVTGGATLIGAAVARALVAAGARVAIVDIDADNGA 44
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 38.9 bits (91), Expect = 0.002
Identities = 20/87 (22%), Positives = 40/87 (45%), Gaps = 1/87 (1%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
AIVT +++GIG A LA G + + S ++ ++ + +L+L
Sbjct: 5 AIVTASDSGIGKACALLLAQQGFDIGITWHSDEEGAKETAE-EVRSHGVRAEIRQLDLSD 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV 212
L + ++ ++ +++LV NAG
Sbjct: 64 LPEGAQALDKLIQRLGRIDVLVNNAGA 90
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 38.9 bits (91), Expect = 0.002
Identities = 27/106 (25%), Positives = 40/106 (37%), Gaps = 7/106 (6%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLK 187
+TGA+ G G + G RV+ R D L EK + + + L++
Sbjct: 8 ITGASRGFGRAWTEAALERGDRVVATARDTATLAD-----LAEKYGDRLLPLALDVTDRA 62
Query: 188 SVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH--TEDGFETTFQVN 231
+V E + F L+I+V NAG G TE N
Sbjct: 63 AVFAAVETAVEHFGRLDIVVNNAGYGLFGMIEEVTESEARAQIDTN 108
>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 = 38.9 bits (91), Expect = 0.003
Identities = 27/109 (24%), Positives = 53/109 (48%), Gaps = 6/109 (5%)
Query: 128 VTGANTGIGFETARSLA-LHGCRVILACRS-LDKANDAISKILTE--KPSAQCIAMELNL 183
VTG GIG AR+LA +G R++L RS L + ++ L A+ + + ++
Sbjct: 210 VTGGAGGIGRALARALARRYGARLVLLGRSPLPPEEEWKAQTLAALEALGARVLYISADV 269
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQV 230
+V++ E+ ++++ +++ ++ AGV L T + FE
Sbjct: 270 TDAAAVRRLLEKVRERYGAIDGVIHAAGVLRDALLAQKTAEDFEAVLAP 318
>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 = 38.9 bits (91), Expect = 0.003
Identities = 23/106 (21%), Positives = 36/106 (33%), Gaps = 4/106 (3%)
Query: 127 IVTGANTGIGFETARSLALHGCR-VILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TG G+G AR LA G R ++L R A L A+ + ++
Sbjct: 154 LITGGLGGLGLLVARWLAARGARHLVLLSRRGPAPRAAARAALLRAGGARVSVVRCDVTD 213
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV--FGLGFSHTEDGFETTFQ 229
++ E L ++ AGV L T F
Sbjct: 214 PAALAALLAELA-AGGPLAGVIHAAGVLRDALLAELTPAAFAAVLA 258
>gnl|CDD|132250 TIGR03206, benzo_BadH, 2-hydroxycyclohexanecarboxyl-CoA
dehydrogenase. Members of this protein family are the
enzyme 2-hydroxycyclohexanecarboxyl-CoA dehydrogenase.
The enzymatic properties were confirmed experimentally
in Rhodopseudomonas palustris; the enzyme is
homotetrameric, and not sensitive to oxygen. This enzyme
is part of proposed pathway for degradation of
benzoyl-CoA to 3-hydroxypimeloyl-CoA that differs from
the analogous in Thauera aromatica. It also may occur in
degradation of the non-aromatic compound
cyclohexane-1-carboxylate.
Length = 250
Score = 38.4 bits (89), Expect = 0.003
Identities = 39/146 (26%), Positives = 63/146 (43%), Gaps = 12/146 (8%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L + AIVTG GIG T R A G +V + + + A + I + +AQ A +
Sbjct: 1 LKDKTAIVTGGGGGIGGATCRRFAEEGAKVAVFDLNREAAEKVAADIRAKGGNAQAFACD 60
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAG--VFGLGFSHTEDG-FETTFQVNHLAHFY 237
+ SV ++ +++LV NAG FG F+ TE +E +N
Sbjct: 61 IT--DRDSVDTAVAAAEQALGPVDVLVNNAGWDKFG-PFTKTEPPLWERLIAIN----LT 113
Query: 238 LTLQLENALIKGAKLFARQQGAATSI 263
L + +A++ G + R G +I
Sbjct: 114 GALHMHHAVLPG--MVERGAGRIVNI 137
>gnl|CDD|187664 cd09763, DHRS1-like_SDR_c, human dehydrogenase/reductase (SDR
family) member 1 (DHRS1) -like, classical (c) SDRs.
This subgroup includes human DHRS1 and related proteins.
These are members of the classical SDR family, with a
canonical Gly-rich NAD-binding motif and the typical
YXXXK active site motif. However, the rest of the
catalytic tetrad is not strongly conserved. DHRS1 mRNA
has been detected in many tissues, liver, heart,
skeletal muscle, kidney and pancreas; a longer
transcript is predominantly expressed in the liver , a
shorter one in the heart. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRS are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes have a 3-glycine N-terminal
NAD(P)(H)-binding pattern (typically, TGxxxGxG in
classical SDRs and TGxxGxxG in extended SDRs), while
substrate binding is in the C-terminal region. A
critical catalytic Tyr residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering), is often found in a conserved YXXXK pattern.
In addition to the Tyr and Lys, there is often an
upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn
(Asn-107, 15-PGDH numbering) or additional Ser,
contributing to the active site. Substrates for these
enzymes include sugars, steroids, alcohols, and aromatic
compounds. The standard reaction mechanism is a proton
relay involving the conserved Tyr and Lys, as well as
Asn (or Ser). Some SDR family members, including 17
beta-hydroxysteroid dehydrogenase contain an additional
helix-turn-helix motif that is not generally found among
SDRs.
Length = 265
Score = 38.2 bits (89), Expect = 0.003
Identities = 32/110 (29%), Positives = 44/110 (40%), Gaps = 11/110 (10%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRS-LDKANDAISKILTEKPSAQCIAM 179
LS A+VTGA+ GIG A L G V + R+ L + +I E +CI +
Sbjct: 1 LSGKIALVTGASRGIGRGIALQLGEAGATVYITGRTILPQLPGTAEEI--EARGGKCIPV 58
Query: 180 ELNLCRLKSVKKF----AEEYQKKFRSLNILVLNA-GVFGLGFSHTEDGF 224
+ V+ A E Q + L+ILV NA L F
Sbjct: 59 RCDHSDDDEVEALFERVAREQQGR---LDILVNNAYAAVQLILVGVAKPF 105
>gnl|CDD|187607 cd05349, BKR_2_SDR_c, putative beta-ketoacyl acyl carrier protein
[ACP]reductase (BKR), subgroup 2, classical (c) SDR.
This subgroup includes Rhizobium sp. NGR234 FabG1. The
Escherichai coli K12 BKR, FabG, belongs to a different
subgroup. BKR catalyzes the NADPH-dependent reduction of
ACP in the first reductive step of de novo fatty acid
synthesis (FAS). FAS consists of four elongation steps,
which are repeated to extend the fatty acid chain
through the addition of two-carbo units from malonyl
acyl-carrier protein (ACP): condensation, reduction,
dehydration, and a final reduction. Type II FAS, typical
of plants and many bacteria, maintains these activities
on discrete polypeptides, while type I FAS utilizes one
or two multifunctional polypeptides. BKR resembles enoyl
reductase, which catalyzes the second reduction step in
FAS. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 246
Score = 38.2 bits (89), Expect = 0.004
Identities = 23/85 (27%), Positives = 44/85 (51%), Gaps = 4/85 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
+VTGA+ G+G ARS A G RV++ ++ +A++ + + IA++ ++
Sbjct: 3 VLVTGASRGLGAAIARSFAREGARVVVNYYRSTESAEAVA----AEAGERAIAIQADVRD 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNA 210
V+ EE + F ++ +V NA
Sbjct: 59 RDQVQAMIEEAKNHFGPVDTIVNNA 83
>gnl|CDD|187631 cd05373, SDR_c10, classical (c) SDR, subgroup 10. This subgroup
resembles the classical SDRs, but has an incomplete
match to the canonical glycine rich NAD-binding motif
and lacks the typical active site tetrad (instead of the
critical active site Tyr, it has Phe, but contains the
nearby Lys). SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 238
Score = 37.7 bits (88), Expect = 0.004
Identities = 24/86 (27%), Positives = 35/86 (40%), Gaps = 1/86 (1%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A V GA G+G AR A G V LA R K +A+ + A+ +
Sbjct: 2 AAVVGAGDGLGAAIARRFAAEGFSVALAARREAKL-EALLVDIIRDAGGSAKAVPTDARD 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG 211
V + +++ L +LV NAG
Sbjct: 61 EDEVIALFDLIEEEIGPLEVLVYNAG 86
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 37.8 bits (88), Expect = 0.004
Identities = 15/36 (41%), Positives = 20/36 (55%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRS 156
+S+ +VTGA GIG + LA G +VI RS
Sbjct: 1 MSSRTVLVTGATKGIGLALSLRLANLGHQVIGIARS 36
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 37.9 bits (88), Expect = 0.005
Identities = 33/114 (28%), Positives = 49/114 (42%), Gaps = 15/114 (13%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA---QC-IAMEL 181
A+VTG TGIG R HG +V + D + L +P+ C + +E
Sbjct: 21 ALVTGGATGIGESIVRLFHKHGAKVCIVDLQ-DDLGQNVCDSLGGEPNVCFFHCDVTVED 79
Query: 182 NLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED----GFETTFQVN 231
++ R F + KF +L+I+V NAG+ G + FE F VN
Sbjct: 80 DVSR---AVDFTVD---KFGTLDIMVNNAGLTGPPCPDIRNVELSEFEKVFDVN 127
>gnl|CDD|235914 PRK07041, PRK07041, short chain dehydrogenase; Provisional.
Length = 230
Score = 37.7 bits (88), Expect = 0.005
Identities = 16/37 (43%), Positives = 22/37 (59%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDA 163
+V G ++GIG AR+ A G RV +A RS D+ A
Sbjct: 1 LVVGGSSGIGLALARAFAAEGARVTIASRSRDRLAAA 37
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 37.6 bits (88), Expect = 0.005
Identities = 13/74 (17%), Positives = 32/74 (43%), Gaps = 3/74 (4%)
Query: 134 GIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLKSVKKFA 193
I + A++ A G V+L A+ ++ E P+ + L++ + + +
Sbjct: 7 SIAWAIAKAAAEEGAEVVLTTWPPALRMGAVDELAKELPAD---VIPLDVTSDEDIDELF 63
Query: 194 EEYQKKFRSLNILV 207
E+ ++ ++ LV
Sbjct: 64 EKVKEDGGKIDFLV 77
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 37.4 bits (87), Expect = 0.005
Identities = 23/96 (23%), Positives = 36/96 (37%), Gaps = 11/96 (11%)
Query: 126 AIVTGAN--TGIGFETARSLALHGCRVILA-CRSLDKANDAISKILT--------EKPSA 174
A+VTGA+ GIG R LA G + DK E
Sbjct: 8 ALVTGASRLNGIGAAVCRRLAAKGIDIFFTYWSPYDKTMPWGMHDKEPVLLKEEIESYGV 67
Query: 175 QCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNA 210
+C ME++L + + + ++ +IL+ NA
Sbjct: 68 RCEHMEIDLSQPYAPNRVFYAVSERLGDPSILINNA 103
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 37.6 bits (87), Expect = 0.006
Identities = 44/192 (22%), Positives = 74/192 (38%), Gaps = 32/192 (16%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
DL+ AI+TG NTG+G A LA G ++ + A ++ E + +
Sbjct: 5 DLNGKVAIITGCNTGLGQGMAIGLAKAGADIV----GVGVAEAPETQAQVEALGRKFHFI 60
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF----GLGFSHTEDGFETTFQVNHLAH 235
+L + K + + + ++IL+ NAG+ L F ++ +N
Sbjct: 61 TADLIQQKDIDSIVSQAVEVMGHIDILINNAGIIRRQDLLEFG--NKDWDDVININQKTV 118
Query: 236 FYLTLQLENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAAQD- 294
F+L+ + AK F +Q I A+ L F R P A++
Sbjct: 119 FFLSQAV-------AKQFVKQGNGGKIINIASMLS---------FQGGIRVPSYTASKSA 162
Query: 295 -----EALATKL 301
ALAT+L
Sbjct: 163 VMGLTRALATEL 174
>gnl|CDD|187583 cd05322, SDH_SDR_c_like, Sorbitol 6-phosphate dehydrogenase (SDH),
classical (c) SDRs. Sorbitol 6-phosphate dehydrogenase
(SDH, aka glucitol 6-phosphate dehydrogenase) catalyzes
the NAD-dependent interconversion of D-fructose
6-phosphate to D-sorbitol 6-phosphate. SDH is a member
of the classical SDRs, with the characteristic catalytic
tetrad, but without a complete match to the typical
NAD-binding motif. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 37.4 bits (87), Expect = 0.006
Identities = 28/131 (21%), Positives = 53/131 (40%), Gaps = 15/131 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+V G +G LA G V +A + + A +I E + +
Sbjct: 5 AVVIGGGQTLGEFLCHGLAEAGYDVAVADINSENAEKVADEINAEY-GEKAYGFGADATN 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGV--------FGLGFSHTEDGFETTFQVNHLAHFY 237
+SV ++ + F+ +++LV +AG+ F LG F+ + QVN + +F
Sbjct: 64 EQSVIALSKGVDEIFKRVDLLVYSAGIAKSAKITDFELG------DFDRSLQVNLVGYFL 117
Query: 238 LTLQLENALIK 248
+ +I+
Sbjct: 118 CAREFSKLMIR 128
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 37.4 bits (87), Expect = 0.007
Identities = 30/114 (26%), Positives = 53/114 (46%), Gaps = 8/114 (7%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE--KPSAQCIAMELNLC 184
++TGA++GIG TA + A G R++LA R +A+ + E A+ + + ++
Sbjct: 11 VITGASSGIGQATAEAFARRGARLVLAARD----EEALQAVAEECRALGAEVLVVPTDVT 66
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG-FSHTE-DGFETTFQVNHLAHF 236
VK A + +++ V N GV +G F T + E Q N + +
Sbjct: 67 DADQVKALATQAASFGGRIDVWVNNVGVGAVGRFEETPIEAHEQVIQTNLIGYM 120
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 36.8 bits (86), Expect = 0.010
Identities = 20/124 (16%), Positives = 46/124 (37%), Gaps = 18/124 (14%)
Query: 120 DLSNYNAIVTG--ANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE--KPSAQ 175
L ++ G N I + A++LA G + + + K + E +
Sbjct: 3 LLEGKRILIMGVANNRSIAWGIAKALAEQGAELAFTY-----QGERLEKRVEELAEELGS 57
Query: 176 CIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDG----FETTFQVN 231
+ + ++ +S+ +KK+ L+ L V + F+ E+ +T+ +
Sbjct: 58 DLVLPCDVTNDESIDALFATIKKKWGKLDGL-----VHSIAFAPKEELKGDYLDTSREGF 112
Query: 232 HLAH 235
+A
Sbjct: 113 LIAM 116
>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 = 36.0 bits (84), Expect = 0.010
Identities = 16/42 (38%), Positives = 23/42 (54%), Gaps = 1/42 (2%)
Query: 127 IVTGANTGIGFETARSLALHGCR-VILACRSLDKANDAISKI 167
+VTG G+G E AR LA G R ++L RS +A + +
Sbjct: 4 LVTGGLGGLGLELARWLAERGARHLVLLSRSGAPDPEAEALL 45
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 36.5 bits (85), Expect = 0.011
Identities = 22/89 (24%), Positives = 35/89 (39%), Gaps = 11/89 (12%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLK 187
+TGA +GIG TA A G RV D ++ + E + L++
Sbjct: 6 ITGAASGIGRATALLFAAEGWRVGAY----DINEAGLAALAAELGAGNAWTGALDVTDRA 61
Query: 188 SVKK----FAEEYQKKFRSLNILVLNAGV 212
+ FA + L++L NAG+
Sbjct: 62 AWDAALADFAAATGGR---LDVLFNNAGI 87
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 36.3 bits (84), Expect = 0.014
Identities = 34/127 (26%), Positives = 59/127 (46%), Gaps = 10/127 (7%)
Query: 118 GRDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKA-NDAISKILTEKPSA-- 174
DLS A+VTGA G+G A LA G V++ D A S +L E +A
Sbjct: 7 TTDLSGKVAVVTGAAAGLGRAEALGLARLGATVVVN----DVASALDASDVLDEIRAAGA 62
Query: 175 QCIAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVF--GLGFSHTEDGFETTFQVNH 232
+ +A+ ++ + + + L+I+V NAG+ + F+ +++ ++ V+
Sbjct: 63 KAVAVAGDISQRATADELVATAV-GLGGLDIVVNNAGITRDRMLFNMSDEEWDAVIAVHL 121
Query: 233 LAHFYLT 239
HF LT
Sbjct: 122 RGHFLLT 128
>gnl|CDD|187589 cd05328, 3alpha_HSD_SDR_c, alpha hydroxysteroid dehydrogenase
(3alpha_HSD), classical (c) SDRs. Bacterial
3-alpha_HSD, which catalyzes the NAD-dependent
oxidoreduction of hydroxysteroids, is a dimeric member
of the classical SDR family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 35.9 bits (83), Expect = 0.015
Identities = 37/138 (26%), Positives = 49/138 (35%), Gaps = 32/138 (23%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLD-KANDAISKILTEKPSAQCIAMELNLCR 185
++TGA +GIG TA L G VI +D + D I+ + T + A IA L C
Sbjct: 3 VITGAASGIGAATAELLEDAGHTVI----GIDLREADVIADLSTPEGRAAAIADVLARCS 58
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLENA 245
L+ LV AGV T +VN+ L L
Sbjct: 59 ---------------GVLDGLVNCAGV-----GGTT-VAGLVLKVNYFGLRALMEALLPR 97
Query: 246 LIKGAKLFARQQGAATSI 263
L KG AA +
Sbjct: 98 LRKG------HGPAAVVV 109
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 35.9 bits (83), Expect = 0.016
Identities = 28/115 (24%), Positives = 48/115 (41%), Gaps = 5/115 (4%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
S A+VTG GIG TA + A G +V++A R + ++ I + + + +
Sbjct: 4 TFSGKVALVTGGAAGIGRATALAFAREGAKVVVADRDAAGGEETVALI--REAGGEALFV 61
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFS---HTEDGFETTFQVN 231
++ R VK E+ + L+ NAG+ +E F+ VN
Sbjct: 62 ACDVTRDAEVKALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEGSEAEFDAIMGVN 116
>gnl|CDD|187630 cd05372, ENR_SDR, Enoyl acyl carrier protein (ACP) reductase (ENR),
divergent SDR. This bacterial subgroup of ENRs includes
Escherichia coli ENR. ENR catalyzes the
NAD(P)H-dependent reduction of enoyl-ACP in the last
step of fatty acid biosynthesis. De novo fatty acid
biosynthesis is catalyzed by the fatty acid synthetase
complex, through the serial addition of 2-carbon
subunits. In bacteria and plants,ENR catalyzes one of
six synthetic steps in this process. Oilseed rape ENR,
and also apparently the NADH-specific form of
Escherichia coli ENR, is tetrameric. Although similar
to the classical SDRs, this group does not have the
canonical catalytic tetrad, nor does it have the typical
Gly-rich NAD-binding pattern. Such so-called divergent
SDRs have a GXXXXXSXA NAD-binding motif and a YXXMXXXK
(or YXXXMXXXK) active site motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 250
Score = 36.0 bits (84), Expect = 0.017
Identities = 17/110 (15%), Positives = 42/110 (38%), Gaps = 13/110 (11%)
Query: 126 AIVTG-ANT-GIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNL 183
++TG AN I + A++L G + + + + K+ + + ++
Sbjct: 4 ILITGIANDRSIAWGIAKALHEAGAELAFTYQP-EALRKRVEKLAERLG-ESALVLPCDV 61
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDG----FETTFQ 229
+ +K+ E +K + L+ L V + F+ +T+ +
Sbjct: 62 SNDEEIKELFAEVKKDWGKLDGL-----VHSIAFAPKVQLKGPFLDTSRK 106
>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 = 35.5 bits (83), Expect = 0.018
Identities = 13/31 (41%), Positives = 18/31 (58%), Gaps = 1/31 (3%)
Query: 127 IVTGANTGIGFETARSLALHGCR-VILACRS 156
++TG G+G AR LA G R ++L RS
Sbjct: 4 LITGGLGGLGRALARWLAERGARRLVLLSRS 34
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 35.9 bits (83), Expect = 0.019
Identities = 13/28 (46%), Positives = 18/28 (64%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILA 153
A++TG +GIG TAR LA G V++
Sbjct: 10 AVITGGGSGIGLATARRLAAEGATVVVG 37
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 35.7 bits (83), Expect = 0.020
Identities = 25/123 (20%), Positives = 45/123 (36%), Gaps = 12/123 (9%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME 180
L A++TG +GIG G RV + RS +K + + + E
Sbjct: 4 LHGQVALITGGGSGIGRALVERFLAEGARVAVLERSAEKL----ASLRQRFGDHVLVV-E 58
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFS-------HTEDGFETTFQVNHL 233
++ ++ ++ F L+ V NAG++ S + F+ F VN
Sbjct: 59 GDVTSYADNQRAVDQTVDAFGKLDCFVGNAGIWDYNTSLVDIPAETLDTAFDEIFNVNVK 118
Query: 234 AHF 236
+
Sbjct: 119 GYL 121
>gnl|CDD|187666 cd09806, type1_17beta-HSD-like_SDR_c, human estrogenic
17beta-hydroxysteroid dehydrogenase type 1 (type 1
17beta-HSD)-like, classical (c) SDRs.
17beta-hydroxysteroid dehydrogenases are a group of
isozymes that catalyze activation and inactivation of
estrogen and androgens. This classical SDR subgroup
includes human type 1 17beta-HSD, human retinol
dehydrogenase 8, zebrafish photoreceptor associated
retinol dehydrogenase type 2, and a chicken
ovary-specific 17beta-hydroxysteroid dehydrogenase. SDRs
are a functionally diverse family of oxidoreductases
that have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRs are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes catalyze a
wide range of activities including the metabolism of
steroids, cofactors, carbohydrates, lipids, aromatic
compounds, and amino acids, and act in redox sensing.
Classical SDRs have an TGXXX[AG]XG cofactor binding
motif and a YXXXK active site motif, with the Tyr
residue of the active site motif serving as a critical
catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase (15-PGDH)
numbering). In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) contributing
to the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 258
Score = 35.9 bits (83), Expect = 0.020
Identities = 40/141 (28%), Positives = 61/141 (43%), Gaps = 22/141 (15%)
Query: 127 IVTGANTGIGFETARSLALHGCR---VILACRSLDKANDAISKILTEKPSAQC----IAM 179
++TG ++GIG A LA + V R L K L E A +
Sbjct: 4 LITGCSSGIGLHLAVRLASDPSKRFKVYATMRDLKKKGR-----LWEAAGALAGGTLETL 58
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFY 237
+L++C KSV E + R +++LV NAGV LG + +ED + F VN +
Sbjct: 59 QLDVCDSKSVAAAVERVTE--RHVDVLVCNAGVGLLGPLEALSEDAMASVFDVN----VF 112
Query: 238 LTLQLENALIKGAKLFARQQG 258
T+++ A + K R G
Sbjct: 113 GTVRMLQAFLPDMK--RRGSG 131
>gnl|CDD|187662 cd09761, A3DFK9-like_SDR_c, Clostridium thermocellum A3DFK9-like, a
putative carbohydrate or polyalcohol metabolizing SDR,
classical (c) SDRs. This subgroup includes a putative
carbohydrate or polyalcohol metabolizing SDR (A3DFK9)
from Clostridium thermocellum. Its members have a
TGXXXGXG classical-SDR glycine-rich NAD-binding motif,
and some have a canonical SDR active site tetrad (A3DFK9
lacks the upstream Asn). SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 242
Score = 35.6 bits (82), Expect = 0.021
Identities = 31/130 (23%), Positives = 48/130 (36%), Gaps = 15/130 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILA----CRSLDKANDAISKILTEKPSAQCIAMEL 181
AIVTG GIG + G +V+ A R D A E P+ + +
Sbjct: 4 AIVTGGGHGIGKQICLDFLEAGDKVVFADIDEERGADFAE-------AEGPNLFFVHGD- 55
Query: 182 NLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYLT 239
+ VK +K +++LV NA G S + ++ VN + L+
Sbjct: 56 -VADETLVKFVVYAMLEKLGRIDVLVNNAARGSKGILSSLLLEEWDRILSVNLTGPYELS 114
Query: 240 LQLENALIKG 249
+ LIK
Sbjct: 115 RYCRDELIKN 124
>gnl|CDD|180796 PRK07023, PRK07023, short chain dehydrogenase; Provisional.
Length = 243
Score = 35.8 bits (83), Expect = 0.021
Identities = 44/165 (26%), Positives = 62/165 (37%), Gaps = 24/165 (14%)
Query: 123 NYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELN 182
AIVTG + G+G A L G V+ RS + L + +EL+
Sbjct: 1 AVRAIVTGHSRGLGAALAEQLLQPGIAVLGVARSRHPS-------LAAAAGERLAEVELD 53
Query: 183 LCRLKSVKKF-AEEYQKKF---RSLNILVLNAGVFG-LGFSHTEDGFETT--FQVNHLAH 235
L + + A + F S +L+ NAG +G T D +N A
Sbjct: 54 LSDAAAAAAWLAGDLLAAFVDGASRVLLINNAGTVEPIGPLATLDAAAIARAVGLNVAAP 113
Query: 236 FYLTLQLENALIKGA--KLFARQQGAAT------SIYCAT--SLD 270
LT L A A ++ GAA S+YCAT +LD
Sbjct: 114 LMLTAALAQAASDAAERRILHISSGAARNAYAGWSVYCATKAALD 158
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 35.5 bits (82), Expect = 0.023
Identities = 24/86 (27%), Positives = 42/86 (48%), Gaps = 2/86 (2%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA G+G A + A G V++A R+ + ++ +I A +A +L
Sbjct: 13 AVVTGAGRGLGAAIALAFAEAGADVLIAARTESQLDEVAEQIRAAGRRAHVVAADLA--H 70
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG 211
++ A + + F L+I+V N G
Sbjct: 71 PEATAGLAGQAVEAFGRLDIVVNNVG 96
>gnl|CDD|180300 PRK05875, PRK05875, short chain dehydrogenase; Provisional.
Length = 276
Score = 35.5 bits (82), Expect = 0.026
Identities = 16/55 (29%), Positives = 24/55 (43%)
Query: 121 LSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ 175
+ +VTG +GIG A L G V++ R+ DK A +I K +
Sbjct: 5 FQDRTYLVTGGGSGIGKGVAAGLVAAGAAVMIVGRNPDKLAAAAEEIEALKGAGA 59
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 35.4 bits (81), Expect = 0.028
Identities = 43/147 (29%), Positives = 66/147 (44%), Gaps = 12/147 (8%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSL-DKANDAISKILTEKPSAQCIAMELNLC 184
A+VTGA+ GIG A+ LA G V + + ++A + + +I + SA I NL
Sbjct: 7 ALVTGASRGIGRAIAKRLANDGALVAIHYGNRKEEAEETVYEIQSNGGSAFSIGA--NLE 64
Query: 185 RLKSVKKFAE----EYQKKFRS--LNILVLNAGVFGLGF--SHTEDGFETTFQVNHLAHF 236
L V+ E Q + S +IL+ NAG+ F TE F+ VN A F
Sbjct: 65 SLHGVEALYSSLDNELQNRTGSTKFDILINNAGIGPGAFIEETTEQFFDRMVSVNAKAPF 124
Query: 237 YLTLQLENALIKGAKLFARQQGAATSI 263
++ +Q + ++ AAT I
Sbjct: 125 FI-IQQALSRLRDNSRIINISSAATRI 150
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 34.8 bits (80), Expect = 0.038
Identities = 31/132 (23%), Positives = 55/132 (41%), Gaps = 8/132 (6%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILT--EKPSAQCI 177
DL A VTGA +GIG A LA G V A L + +D +++ E + I
Sbjct: 5 DLDGQVAFVTGAGSGIGQRIAIGLAQAGADV--ALFDL-RTDDGLAETAEHIEAAGRRAI 61
Query: 178 AMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGL--GFSHTEDGFETTFQVNHLAH 235
+ ++ ++ + + +L + V AG+ E+ ++T +N L
Sbjct: 62 QIAADVTSKADLRAAVARTEAELGALTLAVNAAGIANANPAEEMEEEQWQTVMDIN-LTG 120
Query: 236 FYLTLQLENALI 247
+L+ Q E +
Sbjct: 121 VFLSCQAEARAM 132
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 34.9 bits (80), Expect = 0.038
Identities = 31/88 (35%), Positives = 44/88 (50%), Gaps = 7/88 (7%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDA-ISKILTEKPSAQCIAMELNLC 184
A+VTGA GIG A L G +V+LA LD+ + ++K L E +A IAM+ +
Sbjct: 13 ALVTGAARGIGLGIAAWLIAEGWQVVLA--DLDRERGSKVAKALGE--NAWFIAMD--VA 66
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGV 212
V E +F L+ LV NA +
Sbjct: 67 DEAQVAAGVAEVLGQFGRLDALVCNAAI 94
>gnl|CDD|187638 cd08933, RDH_SDR_c, retinal dehydrogenase-like, classical (c) SDR.
These classical SDRs includes members identified as
retinol dehydrogenases, which convert retinol to
retinal, a property that overlaps with 17betaHSD
activity. 17beta-dehydrogenases are a group of isozymes
that catalyze activation and inactivation of estrogen
and androgens, and include members of the short-chain
dehydrogenases/reductase family. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 261
Score = 34.8 bits (80), Expect = 0.043
Identities = 26/122 (21%), Positives = 49/122 (40%), Gaps = 16/122 (13%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
IVTG + GIG R+ +G +V+ C + A A+ L C + ++ +
Sbjct: 13 IVTGGSRGIGRGIVRAFVENGAKVVF-CARGEAAGQALESELNRAGPGSCKFVPCDVTKE 71
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSH---------TEDGFETTFQVNHLAHFY 237
+ +K ++F ++ LV NAG H + F +N +++F
Sbjct: 72 EDIKTLISVTVERFGRIDCLVNNAGW------HPPHQTTDETSAQEFRDLLNLNLISYFL 125
Query: 238 LT 239
+
Sbjct: 126 AS 127
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 34.7 bits (80), Expect = 0.044
Identities = 23/86 (26%), Positives = 36/86 (41%), Gaps = 4/86 (4%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A+VTGA GIG AR G RV+ D A++ A+ + + +L
Sbjct: 5 ALVTGAAGGIGQALARRFLAAGDRVLAL----DIDAAALAAFADALGDARFVPVACDLTD 60
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAG 211
S+ + +++LV NAG
Sbjct: 61 AASLAAALANAAAERGPVDVLVANAG 86
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 34.6 bits (80), Expect = 0.051
Identities = 10/32 (31%), Positives = 16/32 (50%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVI 151
+ ++TGA +GIG AR+ G +V
Sbjct: 2 EFMTKTVLITGAASGIGLAQARAFLAQGAQVY 33
>gnl|CDD|188169 TIGR01829, AcAcCoA_reduct, acetoacetyl-CoA reductase. This model
represent acetoacetyl-CoA reductase, a member of the
family short-chain-alcohol dehydrogenases. Note that,
despite the precision implied by the enzyme name, the
reaction of EC 1.1.1.36 is defined more generally as
(R)-3-hydroxyacyl-CoA + NADP+ = 3-oxoacyl-CoA + NADPH.
Members of this family may act in the biosynthesis of
poly-beta-hydroxybutyrate (e.g. Rhizobium meliloti) and
related poly-beta-hydroxyalkanoates. Note that the
member of this family from Azospirillum brasilense,
designated NodG, appears to lack acetoacetyl-CoA
reductase activity and to act instead in the production
of nodulation factor. This family is downgraded to
subfamily for this NodG. Other proteins designated NodG,
as from Rhizobium, belong to related but distinct
protein families.
Length = 242
Score = 34.3 bits (79), Expect = 0.054
Identities = 23/90 (25%), Positives = 41/90 (45%), Gaps = 7/90 (7%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ---CIAMELN 182
A+VTG GIG + LA G RV C N+ ++ ++ A +E +
Sbjct: 3 ALVTGGMGGIGTAICQRLAKDGYRVAANCG----PNEERAEAWLQEQGALGFDFRVVEGD 58
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ +S K + + + +++LV NAG+
Sbjct: 59 VSSFESCKAAVAKVEAELGPIDVLVNNAGI 88
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 34.3 bits (79), Expect = 0.064
Identities = 16/36 (44%), Positives = 22/36 (61%), Gaps = 3/36 (8%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKAND 162
++TG ++GIG E A L G RV+ ACR K +D
Sbjct: 6 LITGCSSGIGLEAALELKRRGYRVLAACR---KPDD 38
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 34.1 bits (79), Expect = 0.069
Identities = 12/37 (32%), Positives = 19/37 (51%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRS 156
LS +TGA+ GIG A A G +++A ++
Sbjct: 3 SLSGKTLFITGASRGIGLAIALRAARDGANIVIAAKT 39
>gnl|CDD|180774 PRK06953, PRK06953, short chain dehydrogenase; Provisional.
Length = 222
Score = 33.9 bits (78), Expect = 0.075
Identities = 26/89 (29%), Positives = 39/89 (43%), Gaps = 10/89 (11%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++ GA+ GIG E R G RVI R A A+ + E A+ L++
Sbjct: 4 VLIVGASRGIGREFVRQYRADGWRVIATARD-AAALAALQALGAE-------ALALDVAD 55
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFG 214
SV A ++ +L+ V AGV+G
Sbjct: 56 PASVAGLA--WKLDGEALDAAVYVAGVYG 82
>gnl|CDD|187636 cd08931, SDR_c9, classical (c) SDR, subgroup 9. This subgroup has
the canonical active site tetrad and NAD-binding motif
of the classical SDRs. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 227
Score = 34.0 bits (78), Expect = 0.077
Identities = 26/89 (29%), Positives = 40/89 (44%), Gaps = 11/89 (12%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR-- 185
+TGA +GIG ETA A +G V L D D ++ + E + +A L++
Sbjct: 5 ITGAASGIGRETALLFARNGWFVGL----YDIDEDGLAALAAELGAENVVAGALDVTDRA 60
Query: 186 --LKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ FA + L+ L NAGV
Sbjct: 61 AWAAALADFAAATGGR---LDALFNNAGV 86
>gnl|CDD|187540 cd05229, SDR_a3, atypical (a) SDRs, subgroup 3. These atypical SDR
family members of unknown function have a glycine-rich
NAD(P)-binding motif consensus that is very similar to
the extended SDRs, GXXGXXG. Generally, this group has
poor conservation of the active site tetrad, However,
individual sequences do contain matches to the YXXXK
active site motif, and generally Tyr or Asn in place of
the upstream Ser found in most SDRs. 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 = 302
Score = 33.8 bits (78), Expect = 0.089
Identities = 16/35 (45%), Positives = 17/35 (48%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDK 159
A V GA+ IG E AR L G V L RS K
Sbjct: 1 TAHVLGASGPIGREVARELRRRGWDVRLVSRSGSK 35
>gnl|CDD|166421 PLN02780, PLN02780, ketoreductase/ oxidoreductase.
Length = 320
Score = 33.7 bits (77), Expect = 0.13
Identities = 20/60 (33%), Positives = 28/60 (46%), Gaps = 2/60 (3%)
Query: 118 GRDLSNYN--AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ 175
++L Y A+VTG GIG A LA G ++L R+ DK D I ++ Q
Sbjct: 46 AKNLKKYGSWALVTGPTDGIGKGFAFQLARKGLNLVLVARNPDKLKDVSDSIQSKYSKTQ 105
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 33.2 bits (76), Expect = 0.13
Identities = 27/116 (23%), Positives = 54/116 (46%), Gaps = 8/116 (6%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
+VTGA G G R G +VI R ++ + L ++ +L++
Sbjct: 4 LVTGATAGFGECITRRFIQQGHKVIATGRRQERLQE-----LKDELGDNLYIAQLDVRNR 58
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGV-FGLGFSH--TEDGFETTFQVNHLAHFYLT 239
++++ ++R++++LV NAG+ GL +H + + +ET N+ Y+T
Sbjct: 59 AAIEEMLASLPAEWRNIDVLVNNAGLALGLEPAHKASVEDWETMIDTNNKGLVYMT 114
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 33.0 bits (76), Expect = 0.15
Identities = 19/85 (22%), Positives = 37/85 (43%), Gaps = 5/85 (5%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TG ++G G A++ G RV+ RS D + +A L++
Sbjct: 8 LITGVSSGFGRALAQAALAAGHRVVGTVRSEAARAD-----FEALHPDRALARLLDVTDF 62
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAG 211
++ + + F +++LV NAG
Sbjct: 63 DAIDAVVADAEATFGPIDVLVNNAG 87
>gnl|CDD|224662 COG1748, LYS9, Saccharopine dehydrogenase and related proteins
[Amino acid transport and metabolism].
Length = 389
Score = 33.5 bits (77), Expect = 0.15
Identities = 17/57 (29%), Positives = 25/57 (43%), Gaps = 2/57 (3%)
Query: 125 NAIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSAQCIAME 180
+V GA G+G A LA +G V +A RS +K I + + Q A +
Sbjct: 3 KILVIGAG-GVGSVVAHKLAQNGDGEVTIADRSKEKCARIAELIGGKVEALQVDAAD 58
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 33.0 bits (75), Expect = 0.16
Identities = 22/89 (24%), Positives = 41/89 (46%), Gaps = 6/89 (6%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKA--NDAISKILTEKPSAQCIAMELNL 183
A++TG +GIG T A G RV+L +DK A++ + E + ++
Sbjct: 9 AVITGGASGIGLATGTEFARRGARVVLG--DVDKPGLRQAVNHLRAEGFDVHGVMCDVR- 65
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
+ V A+E + ++++ NAG+
Sbjct: 66 -HREEVTHLADEAFRLLGHVDVVFSNAGI 93
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 33.1 bits (76), Expect = 0.17
Identities = 30/123 (24%), Positives = 50/123 (40%), Gaps = 15/123 (12%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVIL---------ACRSLDKANDAISKILTEKPSAQC 176
IVTGA GIG A + A G RV++ + A + +I+ A
Sbjct: 9 VIVTGAGGGIGRAHALAFAAEGARVVVNDIGVGLDGSASGGSAAQAVVDEIVAAGGEA-- 66
Query: 177 IAMELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGF--SHTEDGFETTFQVNHL- 233
+A ++ + + F L++LV NAG+ + +E+ ++ V HL
Sbjct: 67 VANGDDIADWDGAANLVDAAVETFGGLDVLVNNAGILRDRMIANMSEEEWDAVIAV-HLK 125
Query: 234 AHF 236
HF
Sbjct: 126 GHF 128
>gnl|CDD|187663 cd09762, HSDL2_SDR_c, human hydroxysteroid dehydrogenase-like
protein 2 (HSDL2), classical (c) SDRs. This subgroup
includes human HSDL2 and related protens. These are
members of the classical SDR family, with a canonical
Gly-rich NAD-binding motif and the typical YXXXK active
site motif. However, the rest of the catalytic tetrad is
not strongly conserved. HSDL2 may play a part in fatty
acid metabolism, as it is found in peroxisomes. SDRs are
a functionally diverse family of oxidoreductases that
have a single domain with a structurally conserved
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet), an NAD(P)(H)-binding region, and a
structurally diverse C-terminal region. Classical SDRs
are typically about 250 residues long, while extended
SDRS are approximately 350 residues. Sequence identity
between different SDR enzymes are typically in the
15-30% range, but the enzymes share the Rossmann fold
NAD-binding motif and characteristic NAD-binding and
catalytic sequence patterns. These enzymes have a
3-glycine N-terminal NAD(P)(H)-binding pattern
(typically, TGxxxGxG in classical SDRs and TGxxGxxG in
extended SDRs), while substrate binding is in the
C-terminal region. A critical catalytic Tyr residue
(Tyr-151, human 15-hydroxyprostaglandin dehydrogenase
(15-PGDH) numbering), is often found in a conserved
YXXXK pattern. In addition to the Tyr and Lys, there is
often an upstream Ser (Ser-138, 15-PGDH numbering)
and/or an Asn (Asn-107, 15-PGDH numbering) or additional
Ser, contributing to the active site. Substrates for
these enzymes include sugars, steroids, alcohols, and
aromatic compounds. The standard reaction mechanism is a
proton relay involving the conserved Tyr and Lys, as
well as Asn (or Ser). Some SDR family members, including
17 beta-hydroxysteroid dehydrogenase contain an
additional helix-turn-helix motif that is not generally
found among SDRs.
Length = 243
Score = 32.8 bits (75), Expect = 0.17
Identities = 24/94 (25%), Positives = 41/94 (43%), Gaps = 5/94 (5%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILT-----EKPSAQCIAMELN 182
+TGA+ GIG A A G V++A ++ + I T E + + ++
Sbjct: 8 ITGASRGIGKAIALKAARDGANVVIAAKTAEPHPKLPGTIYTAAEEIEAAGGKALPCIVD 67
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG 216
+ V+ E+ +KF ++ILV NA L
Sbjct: 68 IRDEDQVRAAVEKAVEKFGGIDILVNNASAISLT 101
>gnl|CDD|176220 cd08259, Zn_ADH5, Alcohol dehydrogenases of the MDR family.
NAD(P)(H)-dependent oxidoreductases are the major
enzymes in the interconversion of alcohols and
aldehydes, or ketones. This group contains proteins that
share the characteristic catalytic and structural
zinc-binding sites of the zinc-dependent alcohol
dehydrogenase family. Alcohol dehydrogenase in the
liver converts ethanol and NAD+ to acetaldehyde and
NADH, while in yeast and some other microorganisms ADH
catalyzes the conversion acetaldehyde to ethanol in
alcoholic fermentation. ADH is a member of the medium
chain alcohol dehydrogenase family (MDR), which have a
NAD(P)(H)-binding domain in a Rossmann fold of a
beta-alpha form. The NAD(H)-binding region is comprised
of 2 structurally similar halves, each of which contacts
a mononucleotide. A GxGxxG motif after the first
mononucleotide contact half allows the close contact of
the coenzyme with the ADH backbone. The N-terminal
catalytic domain has a distant homology to GroES. These
proteins typically form dimers (typically higher plants,
mammals) or tetramers (yeast, bacteria), and have 2
tightly bound zinc atoms per subunit, a catalytic zinc
at the active site and a structural zinc in a lobe of
the catalytic domain. NAD(H)-binding occurs in the cleft
between the catalytic and coenzyme-binding domains at
the active site, and coenzyme binding induces a
conformational closing of this cleft. Coenzyme binding
typically precedes and contributes to substrate binding.
In human ADH catalysis, the zinc ion helps coordinate
the alcohol, followed by deprotonation of a histidine
(His-51), the ribose of NAD, a serine (Ser-48), then the
alcohol, which allows the transfer of a hydride to NAD+,
creating NADH and a zinc-bound aldehyde or ketone. In
yeast and some bacteria, the active site zinc binds an
aldehyde, polarizing it, and leading to the reverse
reaction.
Length = 332
Score = 32.7 bits (75), Expect = 0.20
Identities = 13/34 (38%), Positives = 17/34 (50%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKA 160
+VTGA G+G + G RVI RS +K
Sbjct: 167 LVTGAGGGVGIHAIQLAKALGARVIAVTRSPEKL 200
>gnl|CDD|212497 cd11731, Lin1944_like_SDR_c, Lin1944 and related proteins,
classical (c) SDRs. Lin1944 protein from Listeria
Innocua is a classical SDR, it contains a glycine-rich
motif similar to the canonical motif of the SDR
NAD(P)-binding site. However, the typical SDR active
site residues are absent in this subgroup of proteins of
undetermined function. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type ketoacyl reductases have a
TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 198
Score = 32.2 bits (74), Expect = 0.22
Identities = 15/31 (48%), Positives = 17/31 (54%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRS 156
IV GA IG A+ L+ HG VI A RS
Sbjct: 1 IIVIGATGTIGLAVAQLLSAHGHEVITAGRS 31
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 32.4 bits (74), Expect = 0.24
Identities = 18/88 (20%), Positives = 39/88 (44%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
+++G GIG A G + S + + I++ L +K + A LN+
Sbjct: 12 VISGGTRGIGKAIVYEFAQSGVNIAFTYNSNVEEANKIAEDLEQKYGIKAKAYPLNILEP 71
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVFG 214
++ K+ ++ + F ++ + NA + G
Sbjct: 72 ETYKELFKKIDEDFDRVDFFISNAIISG 99
>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 = 31.7 bits (72), Expect = 0.28
Identities = 27/100 (27%), Positives = 43/100 (43%), Gaps = 7/100 (7%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKA--NDAIS---KILTEKPSAQCIAME 180
+VTG + GIG AR LA G +L D N AI +++ S A+
Sbjct: 1 VLVTGGSGGIGGAIARWLASRGSPKVLVVSRRDVVVHNAAILDDGRLIDLTGSRIERAIR 60
Query: 181 LNLCRLKSVKKFAEEYQKKFRSLNILVLN--AGVFGLGFS 218
N+ + + + A E K R ++++ AG+FG
Sbjct: 61 ANVVGTRRLLEAARELMKAKRLGRFILISSVAGLFGAPGL 100
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 32.1 bits (73), Expect = 0.29
Identities = 23/88 (26%), Positives = 39/88 (44%), Gaps = 3/88 (3%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILA-CRSLDKANDAISKILTEKPSAQCIAMELNLC 184
A+VTG + GIG TA LA G V + ++L A + ++ I + + ++ ++
Sbjct: 4 ALVTGGSRGIGRATALLLAQEGYTVAVNYQQNLHAAQEVVNLI--TQAGGKAFVLQADIS 61
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGV 212
V + L LV NAG+
Sbjct: 62 DENQVVAMFTAIDQHDEPLAALVNNAGI 89
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 32.0 bits (73), Expect = 0.31
Identities = 22/84 (26%), Positives = 43/84 (51%), Gaps = 2/84 (2%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
I+TG ++G+G A+ A G V++ R+ +K +A +I + M++
Sbjct: 5 IITGGSSGMGKAMAKRFAEEGANVVITGRTKEKLEEAKLEIEQFPGQVLTVQMDVR--NP 62
Query: 187 KSVKKFAEEYQKKFRSLNILVLNA 210
+ V+K E+ +KF ++ L+ NA
Sbjct: 63 EDVQKMVEQIDEKFGRIDALINNA 86
>gnl|CDD|223523 COG0446, HcaD, Uncharacterized NAD(FAD)-dependent dehydrogenases
[General function prediction only].
Length = 415
Score = 32.2 bits (73), Expect = 0.34
Identities = 17/81 (20%), Positives = 28/81 (34%), Gaps = 25/81 (30%)
Query: 135 IGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLKSVKKFAE 194
IG E A + A G +V L ++ A+ ++L + AE
Sbjct: 147 IGLEAAEAAAKRGKKVTL----IEAADRLGGQLLDP--------------------EVAE 182
Query: 195 EYQKKFRSLNI-LVLNAGVFG 214
E + + L+L V G
Sbjct: 183 ELAELLEKYGVELLLGTKVVG 203
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 31.9 bits (73), Expect = 0.36
Identities = 35/155 (22%), Positives = 61/155 (39%), Gaps = 26/155 (16%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAME---LNL 183
++TGA +G G E A LA G VI + + L + + + +A+ L+L
Sbjct: 6 LITGAGSGFGREVALRLARKGHNVIAGVQIAPQVTA-----LRAEAARRGLALRVEKLDL 60
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTE---DGFETTFQVNHLAHFYLTL 240
+ A E+ +++L+ NAG+ G + + + F+ N LT
Sbjct: 61 TDAIDRAQ-AAEWD-----VDVLLNNAGI-GEAGAVVDIPVELVRELFETNVFGPLELTQ 113
Query: 241 QLENALI---KGAKLFAR-----QQGAATSIYCAT 267
++ KG +F G T YCA+
Sbjct: 114 GFVRKMVARGKGKVVFTSSMAGLITGPFTGAYCAS 148
>gnl|CDD|173798 cd05562, Peptidases_S53_like, Peptidase domain in the S53 family.
Members of the peptidase S53 (sedolisin) family include
endopeptidases and exopeptidases. The S53 family
contains a catalytic triad Glu/Asp/Ser with an
additional acidic residue Asp in the oxyanion hole,
similar to that of Asn in subtilisin. The stability of
these enzymes may be enhanced by calcium, some members
have been shown to bind up to 4 ions via binding sites
with different affinity. Some members of this clan
contain disulfide bonds. These enzymes can be intra- and
extracellular, some function at extreme temperatures and
pH values. Characterized sedolisins include Kumamolisin,
an extracellular calcium-dependent thermostable
endopeptidase from Bacillus. The enzyme is synthesized
with a 188 amino acid N-terminal preprotein region which
is cleaved after the extraction into the extracellular
space with low pH. One kumamolysin paralog,
kumamolisin-As, is believed to be a collagenase. TPP1 is
a serine protease that functions as a tripeptidyl
exopeptidase as well as an endopeptidase. Less is known
about PSCP from Pseudomonas which is thought to be an
aspartic proteinase.
Length = 275
Score = 31.9 bits (73), Expect = 0.39
Identities = 15/50 (30%), Positives = 21/50 (42%), Gaps = 9/50 (18%)
Query: 107 DHSTKALQILH----GRDLSNYNAIVTGANTGIGFETA-RSLALHGCRVI 151
D L+I+H G +L A T + F A R+LA G +I
Sbjct: 49 DEGRAMLEIIHDIAPGAEL----AFHTAGGGELDFAAAIRALAAAGADII 94
>gnl|CDD|233441 TIGR01500, sepiapter_red, sepiapterin reductase. This model
describes sepiapterin reductase, a member of the short
chain dehydrogenase/reductase family. The enzyme
catalyzes the last step in the biosynthesis of
tetrahydrobiopterin. A similar enzyme in Bacillus cereus
was isolated for its ability to convert benzil to
(S)-benzoin, a property sepiapterin reductase also
shares. Cutoff scores for this model are set such that
benzil reductase scores between trusted and noise
cutoffs.
Length = 256
Score = 31.8 bits (72), Expect = 0.44
Identities = 27/127 (21%), Positives = 51/127 (40%), Gaps = 19/127 (14%)
Query: 126 AIVTGANTGIGFETARSLAL----HGCRVILACRSLDKANDAISKILTEKPSAQCIAMEL 181
+VTGA+ G G A+ LA G ++L+ R+ + ++I E+ + + + L
Sbjct: 3 CLVTGASRGFGRTIAQELAKCLKSPGSVLVLSARNDEALRQLKAEIGAERSGLRVVRVSL 62
Query: 182 NLCRLKSVKKFA---------EEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNH 232
+L +++ + Q+ +L+ NAG G S + QV +
Sbjct: 63 DLGAEAGLEQLLKALRELPRPKGLQRL-----LLINNAGTLG-DVSKGFVDLSDSTQVQN 116
Query: 233 LAHFYLT 239
LT
Sbjct: 117 YWALNLT 123
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 31.6 bits (72), Expect = 0.45
Identities = 22/93 (23%), Positives = 45/93 (48%), Gaps = 5/93 (5%)
Query: 119 RDLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIA 178
+S +VTG + G+G AR+ A G RV++ + A +A++ L + + IA
Sbjct: 1 MQISEQTVLVTGGSRGLGAAIARAFAREGARVVVNYHQSEDAAEALADELGD----RAIA 56
Query: 179 MELNLCRLKSVKKFAEEYQKKF-RSLNILVLNA 210
++ ++ + V+ + F + + +V NA
Sbjct: 57 LQADVTDREQVQAMFATATEHFGKPITTVVNNA 89
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 31.4 bits (72), Expect = 0.48
Identities = 31/127 (24%), Positives = 51/127 (40%), Gaps = 11/127 (8%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
++TGA IG A L G VI++ R+ A D + + AQCI + +
Sbjct: 6 LITGAGQRIGLALAWHLLAQGQPVIVSYRTHYPAIDGL-----RQAGAQCI--QADFSTN 58
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGVF---GLGFSHTEDGFETTFQVNHLAHFYLTLQLE 243
+ F +E ++ L ++ NA + G D Q++ A + L L LE
Sbjct: 59 AGIMAFIDELKQHTDGLRAIIHNASDWLAEKPGAP-LADVLARMMQIHVNAPYLLNLALE 117
Query: 244 NALIKGA 250
+ L
Sbjct: 118 DLLRGHG 124
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 31.3 bits (71), Expect = 0.56
Identities = 42/170 (24%), Positives = 71/170 (41%), Gaps = 25/170 (14%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
++TG ++GIG A + G V R KA D + +A A++L++
Sbjct: 3 VVLITGCSSGIGRALADAFKAAGYEVWATAR---KAED-----VEALAAAGFTAVQLDVN 54
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFGLG--FSHTEDGFETTFQVNHLAHFYLTLQL 242
++ + AEE + + L++L+ NAG +G + F+ N A +T L
Sbjct: 55 DGAALARLAEELEAEHGGLDVLINNAGYGAMGPLLDGGVEAMRRQFETNVFAVVGVTRAL 114
Query: 243 ENALIKGAKLFARQQGAATSIYCATSLDLSLPVSGSYFNNCCRCPPSKAA 292
L R +G +I + + L P +G+Y C SKAA
Sbjct: 115 -------FPLLRRSRGLVVNIGSVSGV-LVTPFAGAY---CA----SKAA 149
>gnl|CDD|227354 COG5021, HUL4, Ubiquitin-protein ligase [Posttranslational
modification, protein turnover, chaperones].
Length = 872
Score = 31.3 bits (71), Expect = 0.76
Identities = 13/50 (26%), Positives = 19/50 (38%)
Query: 2 SANNVALPDSDSEDELPPGWEERVTADGCVYYVNHATEGTQWTHPRTGVK 51
A+NV + E L GW+ R+ Y+V H + R G
Sbjct: 432 VASNVQQQRASREGPLLSGWKTRLNNLYRFYFVEHRKKTLTKNDSRLGSF 481
>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 = 31.1 bits (71), Expect = 0.78
Identities = 12/36 (33%), Positives = 14/36 (38%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKA 160
V GA IG LA G +VI+ R A
Sbjct: 2 VVTVFGATGFIGRYVVNRLAKRGSQVIVPYRCEAYA 37
>gnl|CDD|236173 PRK08177, PRK08177, short chain dehydrogenase; Provisional.
Length = 225
Score = 30.8 bits (70), Expect = 0.83
Identities = 19/90 (21%), Positives = 35/90 (38%), Gaps = 9/90 (10%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLC 184
A++ GA+ G+G L G +V R L P +++N
Sbjct: 3 TALIIGASRGLGLGLVDRLLERGWQVTATVR-----GPQQDTALQALPGVHIEKLDMN-- 55
Query: 185 RLKSVKKFAEEYQKKFRSLNILVLNAGVFG 214
S+ + + Q + ++L +NAG+ G
Sbjct: 56 DPASLDQLLQRLQG--QRFDLLFVNAGISG 83
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 30.7 bits (70), Expect = 0.91
Identities = 21/108 (19%), Positives = 44/108 (40%), Gaps = 9/108 (8%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRL 186
+V+G G+G A A G V+LA R+ ++ ++ ++I + + +A+ ++
Sbjct: 9 VVSGVGPGLGRTLAVRAARAGADVVLAARTAERLDEVAAEI--DDLGRRALAVPTDITDE 66
Query: 187 KSVKKFAEEYQKKFRSLNILVLNA-------GVFGLGFSHTEDGFETT 227
++F ++ LV NA + F+H E
Sbjct: 67 DQCANLVALALERFGRVDALVNNAFRVPSMKPLADADFAHWRAVIELN 114
>gnl|CDD|183714 PRK12742, PRK12742, oxidoreductase; Provisional.
Length = 237
Score = 30.5 bits (69), Expect = 0.93
Identities = 22/103 (21%), Positives = 40/103 (38%), Gaps = 10/103 (9%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+ +V G + GIG R G V + + DA ++ E + A+
Sbjct: 3 AFTGKKVLVLGGSRGIGAAIVRRFVTDGANVRF---TYAGSKDAAERLAQETGAT---AV 56
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED 222
+ + +V + +L+ILV+NAG+ G + D
Sbjct: 57 QTDSADRDAVIDVVRKSG----ALDILVVNAGIAVFGDALELD 95
>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 = 30.7 bits (70), Expect = 1.1
Identities = 12/34 (35%), Positives = 15/34 (44%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKA 160
+VTGA I L G +V RSL K+
Sbjct: 3 LVTGATGFIASHIVEQLLKAGYKVRGTVRSLSKS 36
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 30.2 bits (68), Expect = 1.1
Identities = 23/89 (25%), Positives = 35/89 (39%), Gaps = 3/89 (3%)
Query: 127 IVTGANTGIGFETARSLALHGCRV-ILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
++TGA+ GIG TA A G V I R A + + + + ++
Sbjct: 6 LITGASRGIGRATAVLAAARGWSVGINYARDAAAAEETADAV--RAAGGRACVVAGDVAN 63
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVFG 214
V + Q F L+ LV NAG+
Sbjct: 64 EADVIAMFDAVQSAFGRLDALVNNAGIVA 92
>gnl|CDD|223774 COG0702, COG0702, Predicted nucleoside-diphosphate-sugar epimerases
[Cell envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 275
Score = 30.3 bits (68), Expect = 1.1
Identities = 12/36 (33%), Positives = 15/36 (41%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDA 163
VTGA +G R L G V A R+ + A
Sbjct: 5 VTGATGFVGGAVVRELLARGHEVRAAVRNPEAAAAL 40
>gnl|CDD|180669 PRK06720, PRK06720, hypothetical protein; Provisional.
Length = 169
Score = 29.9 bits (67), Expect = 1.2
Identities = 15/27 (55%), Positives = 17/27 (62%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVIL 152
AIVTG GIG TA LA G +VI+
Sbjct: 19 AIVTGGGIGIGRNTALLLAKQGAKVIV 45
>gnl|CDD|187606 cd05348, BphB-like_SDR_c,
cis-biphenyl-2,3-dihydrodiol-2,3-dehydrogenase
(BphB)-like, classical (c) SDRs.
cis-biphenyl-2,3-dihydrodiol-2,3-dehydrogenase (BphB) is
a classical SDR, it is of particular importance for its
role in the degradation of biphenyl/polychlorinated
biphenyls(PCBs); PCBs are a significant source of
environmental contamination. This subgroup also includes
Pseudomonas putida F1
cis-biphenyl-1,2-dihydrodiol-1,2-dehydrogenase (aka
cis-benzene glycol dehydrogenase, encoded by the bnzE
gene), which participates in benzene metabolism. In
addition it includes Pseudomonas sp. C18 putative
1,2-dihydroxy-1,2-dihydronaphthalene dehydrogenase (aka
dibenzothiophene dihydrodiol dehydrogenase, encoded by
the doxE gene) which participates in an upper
naphthalene catabolic pathway. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 257
Score = 30.4 bits (69), Expect = 1.3
Identities = 20/113 (17%), Positives = 50/113 (44%), Gaps = 12/113 (10%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
A++TG +G+G G +V + LD++ + ++++ + A +E ++
Sbjct: 7 ALITGGGSGLGRALVERFVAEGAKVAV----LDRSAEKVAELRADFGDAVV-GVEGDVRS 61
Query: 186 LKSVKKFAEEYQKKFRSLNILVLNAGVF-------GLGFSHTEDGFETTFQVN 231
L ++ ++F L+ + NAG++ + ++ F+ F +N
Sbjct: 62 LADNERAVARCVERFGKLDCFIGNAGIWDYSTSLVDIPEEKLDEAFDELFHIN 114
>gnl|CDD|234703 PRK00258, aroE, shikimate 5-dehydrogenase; Reviewed.
Length = 278
Score = 30.2 bits (69), Expect = 1.4
Identities = 15/61 (24%), Positives = 27/61 (44%), Gaps = 10/61 (16%)
Query: 111 KALQILHGRDLSNYNAIVTGANTGIGFETARS-----LALHGCRVILACRSLDKANDAIS 165
+AL+ G DL ++ GA G G AR+ L L + + R++++A +
Sbjct: 111 RALEERLGVDLKGKRILILGA--G-G--AARAVILPLLDLGVAEITIVNRTVERAEELAK 165
Query: 166 K 166
Sbjct: 166 L 166
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 29.9 bits (68), Expect = 1.5
Identities = 13/37 (35%), Positives = 18/37 (48%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRS 156
DL+ +VTG GIG AR+ G V++ R
Sbjct: 3 DLTGRVVLVTGGTRGIGAGIARAFLAAGATVVVCGRR 39
>gnl|CDD|237079 PRK12367, PRK12367, short chain dehydrogenase; Provisional.
Length = 245
Score = 29.6 bits (67), Expect = 1.8
Identities = 14/51 (27%), Positives = 25/51 (49%), Gaps = 1/51 (1%)
Query: 194 EEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVNHLAHFYLTLQLEN 244
E K+ SL++L+LN G+ G E+ ++N L+ + L E+
Sbjct: 71 ESLDKQLASLDVLILNHGINPGGRQDPEN-INKALEINALSSWRLLELFED 120
>gnl|CDD|203162 pfam05051, COX17, Cytochrome C oxidase copper chaperone (COX17).
Cox17 is essential for the assembly of functional
cytochrome c oxidase (CCO) and for delivery of copper
ions to the mitochondrion for insertion into the enzyme
in yeast. The structure of Cox17 shows the protein to
have an unstructured N-terminal region followed by two
helices and several unstructured C-terminal residues.
The Cu(I) binding site has been modelled as
two-coordinate with ligation by conserved residues Cys23
and Cys26.
Length = 48
Score = 26.8 bits (60), Expect = 2.1
Identities = 8/13 (61%), Positives = 10/13 (76%)
Query: 283 CCRCPPSKAAQDE 295
CC CP +K A+DE
Sbjct: 8 CCACPETKKARDE 20
>gnl|CDD|235724 PRK06178, PRK06178, acyl-CoA synthetase; Validated.
Length = 567
Score = 30.0 bits (68), Expect = 2.1
Identities = 15/43 (34%), Positives = 25/43 (58%)
Query: 189 VKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVN 231
VKK +Y++++R+L VL +G+ +HT D F FQ +
Sbjct: 336 VKKLNPDYRQRWRALTGSVLAEAAWGMTETHTCDTFTAGFQDD 378
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 29.5 bits (67), Expect = 2.3
Identities = 25/111 (22%), Positives = 44/111 (39%), Gaps = 8/111 (7%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKP-SAQCIAMELNLCRL 186
+TGA++GIG AR A G + L R DA+ P +A+ ++
Sbjct: 7 ITGASSGIGQALAREYARQGATLGLVARR----TDALQAFAARLPKAARVSVYAADVRDA 62
Query: 187 KSVKKFAEEYQKKFRSLNILVLNAGV-FGLGFSHTED--GFETTFQVNHLA 234
++ A ++ ++++ NAG+ G ED F N+
Sbjct: 63 DALAAAAADFIAAHGLPDVVIANAGISVGTLTEEREDLAVFREVMDTNYFG 113
>gnl|CDD|217556 pfam03435, Saccharop_dh, Saccharopine dehydrogenase. This family
comprised of three structural domains that can not be
separated in the linear sequence. In some organisms this
enzyme is found as a bifunctional polypeptide with
lysine ketoglutarate reductase. The saccharopine
dehydrogenase can also function as a saccharopine
reductase.
Length = 380
Score = 29.2 bits (66), Expect = 2.8
Identities = 20/81 (24%), Positives = 34/81 (41%), Gaps = 13/81 (16%)
Query: 134 GIGFETARSLALHG-CRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCRLKSVKKF 192
G+G A LA HG + +A RSL+KA + K + IA+ ++ +++
Sbjct: 8 GVGQGVAPLLARHGDLEITVADRSLEKAQ----ALAAPKLGLRFIAIAVDADNYEALVAL 63
Query: 193 AEEYQKKFRSLNILVLNAGVF 213
+E LV+N
Sbjct: 64 LKEGD--------LVINLAPP 76
>gnl|CDD|180838 PRK07102, PRK07102, short chain dehydrogenase; Provisional.
Length = 243
Score = 29.1 bits (66), Expect = 3.0
Identities = 11/35 (31%), Positives = 18/35 (51%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDK 159
++ GA + I AR A G R+ LA R +++
Sbjct: 3 KILIIGATSDIARACARRYAAAGARLYLAARDVER 37
>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 = 28.8 bits (65), Expect = 3.7
Identities = 14/38 (36%), Positives = 18/38 (47%), Gaps = 4/38 (10%)
Query: 125 NAIVTGANTGIGFETARSLALHGCRVILACRSLDKAND 162
+VTGA IGF A+ L G V+ +D ND
Sbjct: 2 KILVTGAAGFIGFHVAKRLLERGDEVV----GIDNLND 35
>gnl|CDD|233635 TIGR01915, npdG, NADPH-dependent F420 reductase. This model
represents a subset of a parent family described by
pfam03807. Unlike the parent family, members of this
family are found only in species with evidence of
coenzyme F420. All members of this family are believed
to act as NADPH-dependent F420 reductase [Energy
metabolism, Electron transport].
Length = 219
Score = 28.2 bits (63), Expect = 4.5
Identities = 16/43 (37%), Positives = 22/43 (51%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTE 170
V G G A LA G ++I+ R L+KA +A +K L E
Sbjct: 5 VLGGTGDQGKGLALRLAKAGNKIIIGSRDLEKAEEAAAKALEE 47
>gnl|CDD|213509 TIGR00134, gatE_arch, glutamyl-tRNA(Gln) amidotransferase, subunit
E. This peptide is found only in the Archaea. It is
paralogous to the gatB-encoded subunit of Glu-tRNA(Gln)
amidotransferase. The GatABC system operates in many
bacteria to convert Glu-tRNA(Gln) into Gln-tRNA(Gln).
However, the homologous system in archaea instead
converts Asp-tRNA(Asn) to Asn-tRNA(Asn). Glu-tRNA(Gln)
is converted to Gln-tRNA(Gln) by a heterodimeric
amidotransferase of GatE (this protein) and GatD. The
Archaea have an Asp-tRNA(Asn) amidotransferase instead
of an Asp--tRNA ligase, but the genes have not been
identified. It is likely that this protein replaces gatB
in Asp-tRNA(Asn) amidotransferase but that both enzymes
share gatA [Protein synthesis, tRNA aminoacylation].
Length = 620
Score = 28.7 bits (64), Expect = 4.5
Identities = 19/49 (38%), Positives = 26/49 (53%), Gaps = 4/49 (8%)
Query: 284 CRCPPSKAAQDEALATKLWKLSEEMIQSVVSTWLEE----TTERGEVVF 328
C C AA+D A KL L+EE I+S++ +EE +ERGE
Sbjct: 541 CMCDEPLAAEDAARKLKLKLLAEEEIESIIQEIIEENLDMISERGEGAM 589
>gnl|CDD|187633 cd08928, KR_fFAS_like_SDR_c_like, ketoacyl reductase (KR) domain of
fungal-type fatty acid synthase (fFAS)-like, classical
(c)-like SDRs. KR domain of FAS, including the
fungal-type multidomain FAS alpha chain, and the single
domain daunorubicin C-13 ketoreductase. Fungal-type FAS
is a heterododecameric FAS composed of alpha and beta
multifunctional polypeptide chains. The KR, an SDR
family member is located centrally in the alpha chain.
KR catalyzes the NADP-dependent reduction of
ketoacyl-ACP to hydroxyacyl-ACP. KR shares the critical
active site Tyr of the classical SDR and has partial
identity of the active site tetrad, but the upstream Asn
is replaced in KR by Met. As in other SDRs, there is a
glycine rich NAD(P)-binding motif, but the pattern found
in KR does not match the classical SDRs, and is not
strictly conserved within this group. Daunorubicin is a
clinically important therapeutic compound used in some
cancer treatments. Single domain daunorubicin C-13
ketoreductase is member of the classical SDR family with
a canonical glycine-rich NAD(P)-binding motif, but
lacking a complete match to the active site tetrad
characteristic of this group. The critical Tyr, plus the
Lys and upstream Asn are present, but the catalytic Ser
is replaced, generally by Gln. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold
(alpha/beta folding pattern with a central beta-sheet),
an NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human prostaglandin dehydrogenase
(PGDH) numbering). In addition to the Tyr and Lys, there
is often an upstream Ser (Ser-138, PGDH numbering)
and/or an Asn (Asn-107, PGDH numbering) contributing to
the active site; while substrate binding is in the
C-terminal region, which determines specificity. The
standard reaction mechanism is a 4-pro-S hydride
transfer and proton relay involving the conserved Tyr
and Lys, a water molecule stabilized by Asn, and
nicotinamide. Extended SDRs have additional elements in
the C-terminal region, and typically have a TGXXGXXG
cofactor binding motif. Complex (multidomain) SDRs such
as ketoreductase domains of fatty acid synthase have a
GGXGXXG NAD(P)-binding motif and an altered active site
motif (YXXXN). Fungal type KRs have a TGXXXGX(1-2)G
NAD(P)-binding motif. Some atypical SDRs have lost
catalytic activity and/or have an unusual NAD(P)-binding
motif and missing or unusual active site residues.
Reactions catalyzed within the SDR family include
isomerization, decarboxylation, epimerization, C=N bond
reduction, dehydratase activity, dehalogenation,
Enoyl-CoA reduction, and carbonyl-alcohol
oxidoreduction.
Length = 248
Score = 28.4 bits (63), Expect = 4.6
Identities = 22/124 (17%), Positives = 40/124 (32%), Gaps = 11/124 (8%)
Query: 126 AIVTGANTG-IGFETARSLALHGCRVILACRSLDK-ANDAISKILTEKPSA--QCIAMEL 181
++TGA G IG E + L G +V + + I +A I +
Sbjct: 1 VLITGAGDGSIGAEVLQGLLNGGAKVYVTTSRFSRQVTKYYQDIYAACGAAGSVLIVVPF 60
Query: 182 NLCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTED---GFETTFQVNHLAHFYL 238
N + V+ A + ++N L F+ + + +AH +
Sbjct: 61 NQGSKQDVEALA-IGI--YDTVNGL-GWDLDLYGPFAAIPETGIEIPAIDSKSEVAHRIM 116
Query: 239 TLQL 242
L
Sbjct: 117 LTNL 120
>gnl|CDD|236016 PRK07424, PRK07424, bifunctional sterol desaturase/short chain
dehydrogenase; Validated.
Length = 406
Score = 28.5 bits (64), Expect = 4.9
Identities = 23/109 (21%), Positives = 43/109 (39%), Gaps = 23/109 (21%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAIS-----KILTEKPSAQCIAMELN 182
VTGA+ +G + L G +V+ +L +D I+ + L K + E
Sbjct: 183 VTGASGTLGQALLKELHQQGAKVV----ALTSNSDKITLEINGEDLPVKTLHWQVGQEAA 238
Query: 183 LCRLKSVKKFAEEYQKKFRSLNILVLNAGVFGLGFSHTEDGFETTFQVN 231
L + ++IL++N G+ G T + +++VN
Sbjct: 239 L-------------AELLEKVDILIINHGINVHG-ERTPEAINKSYEVN 273
>gnl|CDD|223390 COG0313, COG0313, Predicted methyltransferases [General function
prediction only].
Length = 275
Score = 28.3 bits (64), Expect = 5.0
Identities = 15/36 (41%), Positives = 20/36 (55%), Gaps = 3/36 (8%)
Query: 296 ALATKLWKLSEEMI---QSVVSTWLEETTERGEVVF 328
+A +L KL EE+ S + WLEE T +GE V
Sbjct: 186 VVARELTKLFEEIYRGTLSELIEWLEEDTLKGEFVL 221
>gnl|CDD|224346 COG1429, CobN, Cobalamin biosynthesis protein CobN and related
Mg-chelatases [Coenzyme metabolism].
Length = 1388
Score = 28.9 bits (65), Expect = 5.1
Identities = 8/33 (24%), Positives = 13/33 (39%)
Query: 294 DEALATKLWKLSEEMIQSVVSTWLEETTERGEV 326
EA LW +E ++ + + E E G
Sbjct: 1219 LEAARRGLWDADDETLRLLAEVYAELVAENGVA 1251
>gnl|CDD|161904 TIGR00507, aroE, shikimate 5-dehydrogenase. This model finds
proteins from prokaryotes and functionally equivalent
domains from larger, multifunctional proteins of fungi
and plants. Below the trusted cutoff of 180, but above
the noise cutoff of 20, are the putative shikimate
dehydrogenases of Thermotoga maritima and Mycobacterium
tuberculosis, and uncharacterized paralogs of shikimate
dehydrogenase from E. coli and H. influenzae. The
related enzyme quinate 5-dehydrogenase scores below the
noise cutoff. A neighbor-joining tree, constructed with
quinate 5-dehydrogenases as the outgroup, shows the
Clamydial homolog as clustering among the shikimate
dehydrogenases, although the sequence is unusual in the
degree of sequence divergence and the presence of an
additional N-terminal domain [Amino acid biosynthesis,
Aromatic amino acid family].
Length = 270
Score = 28.2 bits (63), Expect = 5.4
Identities = 17/68 (25%), Positives = 28/68 (41%), Gaps = 4/68 (5%)
Query: 122 SNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMEL 181
N N ++ GA G A L C VI+A R++ KA + + + + A +
Sbjct: 116 PNQNVLIIGAG-GAAKAVALELLKADCNVIIANRTVSKAEELAERF---QRYGEIQAFSM 171
Query: 182 NLCRLKSV 189
+ L V
Sbjct: 172 DELPLHRV 179
>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 = 28.5 bits (64), Expect = 5.5
Identities = 11/32 (34%), Positives = 14/32 (43%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDK 159
VTGA +G L G +V RS +K
Sbjct: 3 VTGATGYVGGRLVPRLLQEGHQVRALVRSPEK 34
>gnl|CDD|102369 PRK06424, PRK06424, transcription factor; Provisional.
Length = 144
Score = 27.6 bits (61), Expect = 5.5
Identities = 14/43 (32%), Positives = 19/43 (44%)
Query: 64 KSVSEDGKITFYNKDTHVKTYTDPRIVFAKEEKENPLDIRQKY 106
K V ED K+ K V TY + K+ + LDI + Y
Sbjct: 43 KEVKEDIKVKLPEKKIIVPTYKKAYKKYKKKASDEDLDIVEDY 85
>gnl|CDD|240303 PTZ00170, PTZ00170, D-ribulose-5-phosphate 3-epimerase;
Provisional.
Length = 228
Score = 28.0 bits (63), Expect = 6.1
Identities = 16/42 (38%), Positives = 19/42 (45%)
Query: 134 GIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQ 175
GI ET A G VI+A S+ KA D I + S Q
Sbjct: 181 GINLETIDIAADAGANVIVAGSSIFKAKDRKQAIELLRESVQ 222
>gnl|CDD|223528 COG0451, WcaG, Nucleoside-diphosphate-sugar epimerases [Cell
envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 314
Score = 28.4 bits (63), Expect = 6.2
Identities = 11/41 (26%), Positives = 15/41 (36%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKI 167
+VTG IG L G V R D + +S +
Sbjct: 4 LVTGGAGFIGSHLVERLLAAGHDVRGLDRLRDGLDPLLSGV 44
>gnl|CDD|238931 cd01971, Nitrogenase_VnfN_like, Nitrogenase_vnfN_like: VnfN subunit
of the VnfEN complex-like. This group in addition to
VnfN contains a subset of the beta subunit of the
nitrogenase MoFe protein and NifN-like proteins. The
nitrogenase enzyme system catalyzes the ATP-dependent
reduction of dinitrogen to ammonia. NifEN participates
in the synthesis of the iron-molybdenum cofactor
(FeMoco) of MoFe protein of the
molybdenum(Mo)-nitrogenase. NifB-co (an iron and sulfur
containing precursor of the FeMoco) from NifB is
transferred to NifEN where it is further processed to
FeMoco. VnfEN may similarly be a scaffolding protien
for the iron-vanadium cofactor (FeVco) of the
vanadium-dependent (V)-nitrogenase. NifE and NifN are
essential for the Mo-nitrogenase, VnfE and VnfN are not
essential for the V-nitrogenase. NifE and NifN can
substitute when the vnfEN genes are inactivated.
Length = 427
Score = 28.1 bits (63), Expect = 6.4
Identities = 8/52 (15%), Positives = 17/52 (32%), Gaps = 5/52 (9%)
Query: 91 FAKEEKENPLDI-----RQKYDHSTKALQILHGRDLSNYNAIVTGANTGIGF 137
FA EK ++ Y + + + L A++ + +G
Sbjct: 257 FAGIEKAKVEAFIKAEEKRYYHYLERFSDFMARWGLPRRFAVIADSTYALGL 308
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 27.9 bits (62), Expect = 6.5
Identities = 16/46 (34%), Positives = 25/46 (54%), Gaps = 3/46 (6%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRS---LDKANDAISKILT 169
++TGA +GIG + A A G +VI R+ LD+ + + I T
Sbjct: 5 LITGATSGIGKQLALDYAKQGWQVIACGRNQSVLDELHTQSANIFT 50
>gnl|CDD|236524 PRK09454, ugpQ, cytoplasmic glycerophosphodiester
phosphodiesterase; Provisional.
Length = 249
Score = 28.0 bits (63), Expect = 6.5
Identities = 10/23 (43%), Positives = 12/23 (52%), Gaps = 1/23 (4%)
Query: 15 DELPPGWEERVTADGCV-YYVNH 36
DE P W E GCV ++NH
Sbjct: 172 DEWPDDWLELTRRLGCVSLHLNH 194
>gnl|CDD|177858 PLN02208, PLN02208, glycosyltransferase family protein.
Length = 442
Score = 28.1 bits (62), Expect = 6.8
Identities = 16/50 (32%), Positives = 21/50 (42%), Gaps = 17/50 (34%)
Query: 11 SDSEDELPPGWEERVTADGCVY-----------------YVNHATEGTQW 43
S ++ LP G+EERV G V+ +VNH GT W
Sbjct: 294 STVQEGLPEGFEERVKGRGVVWGGWVQQPLILDHPSIGCFVNHCGPGTIW 343
>gnl|CDD|187611 cd05353, hydroxyacyl-CoA-like_DH_SDR_c-like, (3R)-hydroxyacyl-CoA
dehydrogenase-like, classical(c)-like SDRs. Beta
oxidation of fatty acids in eukaryotes occurs by a
four-reaction cycle, that may take place in mitochondria
or in peroxisomes. (3R)-hydroxyacyl-CoA dehydrogenase is
part of rat peroxisomal multifunctional MFE-2, it is a
member of the NAD-dependent SDRs, but contains an
additional small C-terminal domain that completes the
active site pocket and participates in dimerization. The
atypical, additional C-terminal extension allows for
more extensive dimerization contact than other SDRs.
MFE-2 catalyzes the second and third reactions of the
peroxisomal beta oxidation cycle. Proteins in this
subgroup have a typical catalytic triad, but have a His
in place of the usual upstream Asn. This subgroup also
contains members identified as 17-beta-hydroxysteroid
dehydrogenases, including human peroxisomal
17-beta-hydroxysteroid dehydrogenase type 4 (17beta-HSD
type 4, aka MFE-2, encoded by HSD17B4 gene) which is
involved in fatty acid beta-oxidation and steroid
metabolism. This subgroup also includes two SDR domains
of the Neurospora crassa and Saccharomyces cerevisiae
multifunctional beta-oxidation protein (MFP, aka Fox2).
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser). Some SDR family
members, including 17 beta-hydroxysteroid dehydrogenase
contain an additional helix-turn-helix motif that is not
generally found among SDRs.
Length = 250
Score = 27.7 bits (62), Expect = 7.0
Identities = 10/26 (38%), Positives = 15/26 (57%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVI 151
+VTGA G+G A + A G +V+
Sbjct: 8 VLVTGAGGGLGRAYALAFAERGAKVV 33
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 28.1 bits (63), Expect = 7.1
Identities = 23/93 (24%), Positives = 38/93 (40%), Gaps = 11/93 (11%)
Query: 120 DLSNYNAIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAM 179
+L IVTG ++GIG + L +G V N I + + Q +
Sbjct: 6 NLQGKIIIVTGGSSGIGLAIVKELLANGANV---------VNADIHGGDGQHENYQFV-- 54
Query: 180 ELNLCRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
++ + V E +KF ++ LV NAG+
Sbjct: 55 PTDVSSAEEVNHTVAEIIEKFGRIDGLVNNAGI 87
>gnl|CDD|223058 PHA03366, PHA03366, FGAM-synthase; Provisional.
Length = 1304
Score = 28.5 bits (64), Expect = 7.2
Identities = 13/42 (30%), Positives = 17/42 (40%), Gaps = 4/42 (9%)
Query: 200 FRSLNILVLNAGVFG--LGFSHTEDGFETTFQVNHL--AHFY 237
R L VL G LGF + DG E + + A F+
Sbjct: 1183 LRPLRGSVLPCWAQGTHLGFRYPNDGMEYILRNSGQIAATFH 1224
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 27.7 bits (62), Expect = 7.5
Identities = 20/94 (21%), Positives = 36/94 (38%), Gaps = 14/94 (14%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSAQCIAMELNLCR 185
I+TG + G+G A L G VI R+ +K +++ L+
Sbjct: 4 VIITGTSQGLGEAIANQLLEKGTHVISISRTENKELTKLAEQYNSN----LTFHSLD--- 56
Query: 186 LKSVKKFAEEYQKKFRSLNI-------LVLNAGV 212
L+ V + + + S+ L+ NAG+
Sbjct: 57 LQDVHELETNFNEILSSIQEDNVSSIHLINNAGM 90
>gnl|CDD|222146 pfam13460, NAD_binding_10, NADH(P)-binding.
Length = 182
Score = 27.3 bits (61), Expect = 8.2
Identities = 10/42 (23%), Positives = 14/42 (33%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILT 169
V GA G + L G +V R+ KA +
Sbjct: 3 VIGATGKTGRRLVKELLARGHQVTALSRNPSKAPAPGVTPVQ 44
>gnl|CDD|187578 cd05269, TMR_SDR_a, triphenylmethane reductase (TMR)-like proteins,
NMRa-like, atypical (a) SDRs. TMR is an atypical
NADP-binding protein of the SDR family. It lacks the
active site residues of the SDRs but has a glycine rich
NAD(P)-binding motif that matches the extended SDRs.
Proteins in this subgroup however, are more similar in
length to the classical SDRs. TMR was identified as a
reducer of triphenylmethane dyes, important
environmental pollutants. This subgroup also includes
Escherichia coli NADPH-dependent quinine oxidoreductase
(QOR2), which catalyzes two-electron reduction of
quinone; but is unlikely to play a major role in
protecting against quinone cytotoxicity. Atypical SDRs
are distinct from classical 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 = 272
Score = 27.6 bits (62), Expect = 8.5
Identities = 10/33 (30%), Positives = 14/33 (42%)
Query: 128 VTGANTGIGFETARSLALHGCRVILACRSLDKA 160
VTGA +G L V+ R+ +KA
Sbjct: 3 VTGATGKLGTAVVELLLAKVASVVALVRNPEKA 35
>gnl|CDD|240485 cd12905, SPRY_PRY_TRIM_Bty_69_NF7, PRY/SPRY domain in tripartite
motif-containing protein 69 (TRIM69), Bloodthirsty (bty)
and NF7. This domain, consisting of the distinct
N-terminal PRY subdomain followed by the SPRY subdomain,
is found at the C-terminus of TRIM69 and TRIM proteins
NF7 and bloodthirsty (bty). TRIM69 is a novel testis E3
ubiquitin ligase that may function to ubiquitinate its
particular substrates during spermatogenesis. In humans,
TRIM69 localizes in the cytoplasm and nucleus, and
requires an intact RING finger domain to function. TRIM
protein NF7, which also contains a chromodomain (CHD) at
the N-terminus and an RFP (Ret finger protein)-like
domain at the C-terminus, is required for its
association with transcriptional units of RNA polymerase
II which is mediated by a trimeric B box. In Xenopus
oocyte, xNF7 has been identified as a nuclear
microtubule-associated protein (MAP) whose
microtubule-bundling activity, but not E3-ligase
activity, contributes to microtubule organization and
spindle integrity. Bloodthirsty (bty) is a novel gene
identified in zebrafish and has been shown to likely
play a role in in regulation of the terminal steps of
erythropoiesis.
Length = 176
Score = 27.3 bits (61), Expect = 8.5
Identities = 10/21 (47%), Positives = 16/21 (76%), Gaps = 2/21 (9%)
Query: 68 EDGKITFYNKD--THVKTYTD 86
E G+++FY+ D TH+ T+TD
Sbjct: 129 EGGQVSFYDADTMTHIYTFTD 149
>gnl|CDD|187655 cd08952, KR_1_SDR_x, ketoreductase (KR), subgroup 1, 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
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 single KR domain of SpiF, the
first KR domains of SpiE,-G,H,-I,and #J, the third KR
domain of SpiG, and the second KR domain of SpiH. The
second KR domains of SpiE,-G, I, and #J, and the KR
domains of SpiD, 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 = 480
Score = 27.9 bits (63), Expect = 8.6
Identities = 11/29 (37%), Positives = 14/29 (48%), Gaps = 1/29 (3%)
Query: 128 VTGANTGIGFETARSLALHG-CRVILACR 155
VTG +G AR LA G ++L R
Sbjct: 235 VTGGTGALGAHVARWLARRGAEHLVLTSR 263
>gnl|CDD|130890 TIGR01831, fabG_rel, 3-oxoacyl-(acyl-carrier-protein) reductase,
putative. This model represents a small, very well
conserved family of proteins closely related to the FabG
family, TIGR01830, and possibly equal in function. In
all completed genomes with a member of this family, a
FabG in TIGR01830 is also found [Fatty acid and
phospholipid metabolism, Biosynthesis].
Length = 239
Score = 27.6 bits (61), Expect = 8.6
Identities = 12/38 (31%), Positives = 19/38 (50%)
Query: 127 IVTGANTGIGFETARSLALHGCRVILACRSLDKANDAI 164
+VTGA+ GIG A LA G + + S +++
Sbjct: 2 LVTGASRGIGRAIANRLAADGFEICVHYHSGRSDAESV 39
>gnl|CDD|237459 PRK13655, PRK13655, phosphoenolpyruvate carboxylase; Provisional.
Length = 494
Score = 28.0 bits (63), Expect = 9.0
Identities = 11/49 (22%), Positives = 22/49 (44%), Gaps = 1/49 (2%)
Query: 156 SLDKANDAISKILTEKPSAQCIAMELNLCRLKSV-KKFAEEYQKKFRSL 203
++ AI +I + + I E + L + +K++E YQ + L
Sbjct: 281 PYEEVKKAIEEINEKLIAPPRILSEEDKEELLEIIEKYSERYQSQIEKL 329
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 27.3 bits (60), Expect = 9.5
Identities = 24/89 (26%), Positives = 39/89 (43%), Gaps = 5/89 (5%)
Query: 126 AIVTGANTGIGFETARSLALHGCRVILACRSLDKANDAISKILTEKPSA--QCIAMELNL 183
A VTG GIG + L G +V+ C K L ++ + IA E N+
Sbjct: 6 AYVTGGMGGIGTSICQRLHKDGFKVVAGCGPNSPRRV---KWLEDQKALGFDFIASEGNV 62
Query: 184 CRLKSVKKFAEEYQKKFRSLNILVLNAGV 212
S K ++ + + +++LV NAG+
Sbjct: 63 GDWDSTKAAFDKVKAEVGEIDVLVNNAGI 91
>gnl|CDD|224011 COG1086, COG1086, Predicted nucleoside-diphosphate sugar epimerases
[Cell envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 588
Score = 27.6 bits (62), Expect = 9.7
Identities = 19/84 (22%), Positives = 32/84 (38%), Gaps = 3/84 (3%)
Query: 116 LHGRDLSNYNAIVTGANTGIGFETARSLALHGC-RVILACRSLDKANDAISKILTEKPSA 174
L G L+ +VTG IG E R + +IL R + I L EK
Sbjct: 243 LIGAMLTGKTVLVTGGGGSIGSELCRQILKFNPKEIILFSRD-EYKLYLIDMELREKFPE 301
Query: 175 QCIAMEL-NLCRLKSVKKFAEEYQ 197
+ + ++ V++ E ++
Sbjct: 302 LKLRFYIGDVRDRDRVERAMEGHK 325
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
0.316 0.131 0.392
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: 16,110,094
Number of extensions: 1477257
Number of successful extensions: 1876
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1718
Number of HSP's successfully gapped: 312
Length of query: 328
Length of database: 10,937,602
Length adjustment: 97
Effective length of query: 231
Effective length of database: 6,635,264
Effective search space: 1532745984
Effective search space used: 1532745984
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 (21.6 bits)
S2: 59 (26.3 bits)