RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy2854
(384 letters)
>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 = 223 bits (570), Expect = 4e-71
Identities = 85/215 (39%), Positives = 129/215 (60%), Gaps = 13/215 (6%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GKV +ITGANSGIG ETA+ELAK A V++ CR+ +G+EA ++KKE + ++ +++L+
Sbjct: 1 GKVVVITGANSGIGKETARELAKRGAHVIIACRNEEKGEEAAAEIKKETGNAKVEVIQLD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
L+S S++ FA+ + ++P++ +LINNAG+ P + TK+G+E+ F +N++GHFLLTN
Sbjct: 61 LSSLASVRQFAEEFLARFPRLDILINNAGIMAP--PRRLTKDGFELQFAVNYLGHFLLTN 118
Query: 176 LLIERIQK-----VVIVGSSLMDRGTIDFDNL--NGEKGFVQKGHSNPAYCNSKLMNYYF 228
LL+ ++ +V V S G IDF++L K + AY SKL N F
Sbjct: 119 LLLPVLKASAPSRIVNVSSIAHRAGPIDFNDLDLENNKEY----SPYKAYGQSKLANILF 174
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKF 263
EL + GV V+ + PG T L R F
Sbjct: 175 TRELARRLEGTGVTVNALHPGVVRTELLRRNGSFF 209
Score = 56.8 bits (138), Expect = 3e-09
Identities = 27/82 (32%), Positives = 33/82 (40%), Gaps = 6/82 (7%)
Query: 276 VVIVGSSLMDRGTIDFDNL--NGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGV 333
+V V S G IDF++L K + AY SKL N F EL + GV
Sbjct: 132 IVNVSSIAHRAGPIDFNDLDLENNKEY----SPYKAYGQSKLANILFTRELARRLEGTGV 187
Query: 334 DVCVVCPGWCYTNLFRHADIKF 355
V + PG T L R F
Sbjct: 188 TVNALHPGVVRTELLRRNGSFF 209
>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 = 204 bits (521), Expect = 1e-63
Identities = 91/229 (39%), Positives = 137/229 (59%), Gaps = 14/229 (6%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GK IITGAN+GIG ETA+ELA+ A V++ CR M + +EA +++++ + ++++ L+
Sbjct: 1 GKTVIITGANTGIGKETARELARRGARVIMACRDMAKCEEAAAEIRRDTLNHEVIVRHLD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV-SVPIKEKLTTKEGYEVHFGINHVGHFLLT 174
LAS SI+ FA + + ++ VLINNAGV P T++G+E+ FG+NH+GHFLLT
Sbjct: 61 LASLKSIRAFAAEFLAEEDRLDVLINNAGVMRCP---YSKTEDGFEMQFGVNHLGHFLLT 117
Query: 175 NLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
NLL++ ++K +V V S G I+FD+LN EK + ++ AYC SKL N F
Sbjct: 118 NLLLDLLKKSAPSRIVNVSSLAHKAGKINFDDLNSEKSY----NTGFAYCQSKLANVLFT 173
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNLFRHADI-KFYQKVMIFPIAMMVV 277
EL + GV V+ + PG T L RH I + ++ P+ V
Sbjct: 174 RELARRLQGTGVTVNALHPGVVRTELGRHTGIHHLFLSTLLNPLFWPFV 222
Score = 60.2 bits (146), Expect = 3e-10
Identities = 32/100 (32%), Positives = 49/100 (49%), Gaps = 5/100 (5%)
Query: 276 VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDV 335
+V V S G I+FD+LN EK + ++ AYC SKL N F EL + GV V
Sbjct: 132 IVNVSSLAHKAGKINFDDLNSEKSY----NTGFAYCQSKLANVLFTRELARRLQGTGVTV 187
Query: 336 CVVCPGWCYTNLFRHADI-KFYQKVMIFPIAMMYMRSANQ 374
+ PG T L RH I + ++ P+ ++++ +
Sbjct: 188 NALHPGVVRTELGRHTGIHHLFLSTLLNPLFWPFVKTPRE 227
>gnl|CDD|235737 PRK06197, PRK06197, short chain dehydrogenase; Provisional.
Length = 306
Score = 203 bits (519), Expect = 5e-63
Identities = 82/212 (38%), Positives = 114/212 (53%), Gaps = 14/212 (6%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
G+V ++TGAN+G+GYETA LA A VVL R++ +G+ A ++ + L EL+
Sbjct: 16 GRVAVVTGANTGLGYETAAALAAKGAHVVLAVRNLDKGKAAAARITAATPGADVTLQELD 75
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
L S S++ A + YP+I +LINNAGV K TT +G+E+ FG NH+GHF LT
Sbjct: 76 LTSLASVRAAADALRAAYPRIDLLINNAGVMYT--PKQTTADGFELQFGTNHLGHFALTG 133
Query: 176 LLIERIQKV----VIVGSSLMDR--GTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
LL++R+ V V+ SS R I FD+L E+ + + AY SKL N F
Sbjct: 134 LLLDRLLPVPGSRVVTVSSGGHRIRAAIHFDDLQWERRYNRVA----AYGQSKLANLLFT 189
Query: 230 AELYLKYADKGVDVSVVC--PGWCYTNLFRHA 259
EL + A G V PG T L R+
Sbjct: 190 YELQRRLAAAGATTIAVAAHPGVSNTELARNL 221
Score = 55.0 bits (133), Expect = 2e-08
Identities = 28/80 (35%), Positives = 34/80 (42%), Gaps = 9/80 (11%)
Query: 276 VVIVGSSLMDR--GTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGV 333
VV V SS R I FD+L E+ + + AY SKL N F EL + A G
Sbjct: 147 VVTV-SSGGHRIRAAIHFDDLQWERRYNRVA----AYGQSKLANLLFTYELQRRLAAAGA 201
Query: 334 DVCVVC--PGWCYTNLFRHA 351
V PG T L R+
Sbjct: 202 TTIAVAAHPGVSNTELARNL 221
>gnl|CDD|235736 PRK06196, PRK06196, oxidoreductase; Provisional.
Length = 315
Score = 140 bits (356), Expect = 7e-39
Identities = 70/215 (32%), Positives = 104/215 (48%), Gaps = 25/215 (11%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GK I+TG SG+G ET + LA+ A V++ R +EAL + + ++ L+
Sbjct: 26 GKTAIVTGGYSGLGLETTRALAQAGAHVIVPARRPDVAREALAGID------GVEVVMLD 79
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV-SVPIKEKLT-TKEGYEVHFGINHVGHFLL 173
LA +S++ FA+ + +I +LINNAGV + P T +G+E F NH+GHF L
Sbjct: 80 LADLESVRAFAERFLDSGRRIDILINNAGVMACP----ETRVGDGWEAQFATNHLGHFAL 135
Query: 174 TNLLIERI-----QKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP--AYCNSKLMNY 226
NLL + +VV + S+ R I +D+ + +G+ + AY SK N
Sbjct: 136 VNLLWPALAAGAGARVVALSSAGHRRSPIRWDDPHFTRGY------DKWLAYGQSKTANA 189
Query: 227 YFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADI 261
F L D+GV V PG T L RH
Sbjct: 190 LFAVHLDKLGKDQGVRAFSVHPGGILTPLQRHLPR 224
Score = 38.1 bits (89), Expect = 0.006
Identities = 32/118 (27%), Positives = 44/118 (37%), Gaps = 20/118 (16%)
Query: 246 VCPGW---CYTNLFRHADIKFYQKVMIFPIAMM-----VVIVGSSLMDRGTIDFDNLNGE 297
V GW TN H F +++P VV + S+ R I +D+ +
Sbjct: 117 VGDGWEAQFATNHLGH----FALVNLLWPALAAGAGARVVALSSAGHRRSPIRWDDPHFT 172
Query: 298 KGFVQKGHSNP--AYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHADI 353
+G+ + AY SK N F L D+GV V PG T L RH
Sbjct: 173 RGY------DKWLAYGQSKTANALFAVHLDKLGKDQGVRAFSVHPGGILTPLQRHLPR 224
>gnl|CDD|235627 PRK05854, PRK05854, short chain dehydrogenase; Provisional.
Length = 313
Score = 140 bits (355), Expect = 8e-39
Identities = 64/181 (35%), Positives = 100/181 (55%), Gaps = 9/181 (4%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GK ++TGA+ G+G A+ LA A V+L R+ +G+ A+ ++ V D ++ L L+
Sbjct: 14 GKRAVVTGASDGLGLGLARRLAAAGAEVILPVRNRAKGEAAVAAIRTAVPDAKLSLRALD 73
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
L+S S+ + + + IH+LINNAGV P E+ TT +G+E+ FG NH+GHF LT
Sbjct: 74 LSSLASVAALGEQLRAEGRPIHLLINNAGVMTP-PERQTTADGFELQFGTNHLGHFALTA 132
Query: 176 LLIERIQ----KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
L+ ++ +V S RG I++D+LN E+ + AY SK+ F E
Sbjct: 133 HLLPLLRAGRARVTSQSSIAARRGAINWDDLNWERSY----AGMRAYSQSKIAVGLFALE 188
Query: 232 L 232
L
Sbjct: 189 L 189
Score = 35.0 bits (81), Expect = 0.047
Identities = 16/49 (32%), Positives = 22/49 (44%), Gaps = 4/49 (8%)
Query: 276 VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAEL 324
V S RG I++D+LN E+ + AY SK+ F EL
Sbjct: 145 VTSQSSIAARRGAINWDDLNWERSY----AGMRAYSQSKIAVGLFALEL 189
>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 = 138 bits (348), Expect = 4e-38
Identities = 80/226 (35%), Positives = 115/226 (50%), Gaps = 32/226 (14%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GKV IITGANSGIG+ETA+ A A V+L CR+M R A+ ++ +E ++ M L+
Sbjct: 1 GKVIIITGANSGIGFETARSFALHGAHVILACRNMSRASAAVSRILEEWHKARVEAMTLD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV-SVPIKEKLTTKEGYEVHFGINHVGHFLLT 174
LAS S++ FA+ + +HVL+ NA V ++P T++G E F +NH+GHF L
Sbjct: 61 LASLRSVQRFAEAFKAKNSPLHVLVCNAAVFALPWT---LTEDGLETTFQVNHLGHFYLV 117
Query: 175 NLL---IERIQKV-VIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---------AYCNS 221
LL + R VIV SS R F +L G + +P AY +
Sbjct: 118 QLLEDVLRRSAPARVIVVSSESHR----FTDLPDSCGNLDFSLLSPPKKKYWSMLAYNRA 173
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPG-----------WCYTNLF 256
KL N F EL+ + + +G+ + + PG W YT LF
Sbjct: 174 KLCNILFSNELHRRLSPRGITSNSLHPGNMMYSSIHRNWWVYTLLF 219
Score = 36.4 bits (84), Expect = 0.017
Identities = 27/108 (25%), Positives = 48/108 (44%), Gaps = 18/108 (16%)
Query: 277 VIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---------AYCNSKLMNYYFGAELYLK 327
VIV SS R F +L G + +P AY +KL N F EL+ +
Sbjct: 132 VIVVSSESHR----FTDLPDSCGNLDFSLLSPPKKKYWSMLAYNRAKLCNILFSNELHRR 187
Query: 328 YADKGVDVCVVCPG-WCYTNLFRHADIKFYQKVMIFPIAMMYMRSANQ 374
+ +G+ + PG Y+++ R+ ++ ++F +A + +S Q
Sbjct: 188 LSPRGITSNSLHPGNMMYSSIHRN----WWVYTLLFTLARPFTKSMQQ 231
>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 = 136 bits (344), Expect = 3e-37
Identities = 72/228 (31%), Positives = 117/228 (51%), Gaps = 32/228 (14%)
Query: 60 IITGANSGIGYETAKELAKLKA-TVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLAS 118
+ITGA+SG+G AK LA+ VV+ CR ++ ++A +++ + + +LAS
Sbjct: 5 VITGASSGLGLAAAKALARRGEWHVVMACRDFLKAEQAAQEVGMPKDSYSV--LHCDLAS 62
Query: 119 FDSIKNFAKNVMKQYPKIHVLINNAGVSVP-IKEKLTTKEGYEVHFGINHVGHFLLTNLL 177
DS++ F N + + L+ NA V +P KE T +G+E+ G+NH+GHFLLTNLL
Sbjct: 63 LDSVRQFVDNFRRTGRPLDALVCNAAVYLPTAKEPRFTADGFELTVGVNHLGHFLLTNLL 122
Query: 178 IERIQK-------VVIVGSSLMDRGTI--------DFDNLNGEKGFVQKGHSNP------ 216
+E +Q+ +VIVGS + T+ +L G G ++ +S
Sbjct: 123 LEDLQRSENASPRIVIVGSITHNPNTLAGNVPPRATLGDLEGLAGGLKGFNSMIDGGEFE 182
Query: 217 ---AYCNSKLMNYYFGAELYLKYADK-GVDVSVVCPGWCY--TNLFRH 258
AY +SK+ N EL+ + ++ G+ + + PG C T LFR
Sbjct: 183 GAKAYKDSKVCNMLTTYELHRRLHEETGITFNSLYPG-CIAETGLFRE 229
Score = 29.0 bits (65), Expect = 4.1
Identities = 19/68 (27%), Positives = 27/68 (39%), Gaps = 14/68 (20%)
Query: 286 RGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADK-GVDVCVVCPGWCY 344
ID G K AY +SK+ N EL+ + ++ G+ + PG C
Sbjct: 173 NSMIDGGEFEGAK----------AYKDSKVCNMLTTYELHRRLHEETGITFNSLYPG-CI 221
Query: 345 --TNLFRH 350
T LFR
Sbjct: 222 AETGLFRE 229
>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 = 131 bits (331), Expect = 6e-36
Identities = 57/222 (25%), Positives = 99/222 (44%), Gaps = 21/222 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGC-RSMIRGQEALEKLKKEVQDGQIVLM 112
+ GKV ++TGA+SGIG A+ LA+ A VV+ RS EAL KE G+ +
Sbjct: 3 LSGKVALVTGASSGIGRAIARALAREGARVVVAARRSEEEAAEALAAAIKEAGGGRAAAV 62
Query: 113 ELNLAS-FDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL-TTKEGYEVHFGINHVGH 170
+++ +S++ +++ +I +L+NNAG++ P T+E ++ +N +G
Sbjct: 63 AADVSDDEESVEALVAAAEEEFGRIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLGA 122
Query: 171 FLLTNLLIERIQK--VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
FLLT + ++K +V + S G AY SK
Sbjct: 123 FLLTRAALPLMKKQRIVNISSVAGLGGPPGQ----------------AAYAASKAALIGL 166
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMIF 270
L L+ A +G+ V+ V PG+ T + + + +
Sbjct: 167 TKALALELAPRGIRVNAVAPGYIDTPMTAALESAELEALKRL 208
Score = 39.0 bits (91), Expect = 0.002
Identities = 19/127 (14%), Positives = 42/127 (33%), Gaps = 8/127 (6%)
Query: 240 GVDVSVVCPGWC-YTNLFRHADIKFYQKVM---IFPIAMMVVIVGSSLMDRGTIDFDNLN 295
+D+ V G + + +V+ + ++ + + ++ ++
Sbjct: 86 RIDILVNNAGIAGPDAPLEELTEEDWDRVIDVNLLGAFLLTRAALPLMKKQRIVNISSVA 145
Query: 296 GEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHADIKF 355
G G AY SK L L+ A +G+ V V PG+ T + +
Sbjct: 146 GLGG----PPGQAAYAASKAALIGLTKALALELAPRGIRVNAVAPGYIDTPMTAALESAE 201
Query: 356 YQKVMIF 362
+ +
Sbjct: 202 LEALKRL 208
>gnl|CDD|180983 PRK07453, PRK07453, protochlorophyllide oxidoreductase; Validated.
Length = 322
Score = 126 bits (318), Expect = 3e-33
Identities = 79/243 (32%), Positives = 122/243 (50%), Gaps = 36/243 (14%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
IITGA+SG+G AK LAK V++ CR++ + + A ++L + ++ ++L
Sbjct: 10 IITGASSGVGLYAAKALAKRGWHVIMACRNLKKAEAAAQEL--GIPPDSYTIIHIDLGDL 67
Query: 120 DSIKNFAKNVMKQYPKIHVLINNAGVSVP-IKEKLTTKEGYEVHFGINHVGHFLLTNLLI 178
DS++ F + + L+ NA V +P +KE L + +GYE+ NH+GHFLL NLL+
Sbjct: 68 DSVRRFVDDFRALGKPLDALVCNAAVYMPLLKEPLRSPQGYELSMATNHLGHFLLCNLLL 127
Query: 179 ERIQK-------VVIVG------SSLMDRGTI----DFDNLNG-EKGFV--------QKG 212
E ++K +VI+G L + I D +L+G E GF +K
Sbjct: 128 EDLKKSPAPDPRLVILGTVTANPKELGGKIPIPAPADLGDLSGFEAGFKAPISMADGKKF 187
Query: 213 HSNPAYCNSKLMNYYFGAELYLKY-ADKGVDVSVVCPGWCY--TNLFRHADIKFYQKVMI 269
AY +SKL N EL+ +Y G+ S + PG C T LFR+ +QK +
Sbjct: 188 KPGKAYKDSKLCNMLTMRELHRRYHESTGITFSSLYPG-CVADTPLFRNT-PPLFQK--L 243
Query: 270 FPI 272
FP
Sbjct: 244 FPW 246
>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 = 119 bits (301), Expect = 8e-32
Identities = 56/227 (24%), Positives = 103/227 (45%), Gaps = 36/227 (15%)
Query: 59 CIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKK-EVQDGQIVLMELNLA 117
++TGA+SGIG A+ LA+ A VVL R+ +EAL +L E G V ++ +++
Sbjct: 1 ALVTGASSGIGRAIARRLAREGAKVVLADRN----EEALAELAAIEALGGNAVAVQADVS 56
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLL 177
+ ++ + ++++ ++ +L+NNAG++ P + T E ++ +N G FLLT
Sbjct: 57 DEEDVEALVEEALEEFGRLDILVNNAGIARPGPLEELTDEDWDRVLDVNLTGVFLLTRAA 116
Query: 178 IERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE- 231
+ ++K +V + S + G + + AY SK E
Sbjct: 117 LPHMKKQGGGRIVNISS------------VAGLRPLPGQA----AYAASK-----AALEG 155
Query: 232 ----LYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMIFPIAM 274
L L+ A G+ V+ V PG T + + +K + I +
Sbjct: 156 LTRSLALELAPYGIRVNAVAPGLVDTPMLAKLGPEEAEKELAAAIPL 202
>gnl|CDD|177654 PLN00015, PLN00015, protochlorophyllide reductase.
Length = 308
Score = 117 bits (294), Expect = 5e-30
Identities = 74/229 (32%), Positives = 118/229 (51%), Gaps = 34/229 (14%)
Query: 60 IITGANSGIGYETAKELAKL-KATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLAS 118
IITGA+SG+G TAK LA+ K VV+ CR ++ + A + + +M L+LAS
Sbjct: 1 IITGASSGLGLATAKALAETGKWHVVMACRDFLKAERAAKSAG--MPKDSYTVMHLDLAS 58
Query: 119 FDSIKNFAKNVMKQYPKIHVLINNAGVSVPI-KEKLTTKEGYEVHFGINHVGHFLLTNLL 177
DS++ F N + + VL+ NA V +P KE T +G+E+ G NH+GHFLL+ LL
Sbjct: 59 LDSVRQFVDNFRRSGRPLDVLVCNAAVYLPTAKEPTFTADGFELSVGTNHLGHFLLSRLL 118
Query: 178 IERIQK-------VVIVGSSLMDRGTI--------DFDNLNGEKGFVQKGHSNP------ 216
++ ++K ++IVGS + T+ + +L G G + +S+
Sbjct: 119 LDDLKKSDYPSKRLIIVGSITGNTNTLAGNVPPKANLGDLRGLAGGLNGLNSSAMIDGGE 178
Query: 217 -----AYCNSKLMNYYFGAELYLKYADK-GVDVSVVCPGWCY--TNLFR 257
AY +SK+ N E + +Y ++ G+ + + PG C T LFR
Sbjct: 179 FDGAKAYKDSKVCNMLTMQEFHRRYHEETGITFASLYPG-CIATTGLFR 226
>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 = 110 bits (278), Expect = 2e-28
Identities = 61/207 (29%), Positives = 96/207 (46%), Gaps = 31/207 (14%)
Query: 57 KVCIITGANSGIGYETAKELAKL-KATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
KV ++TGAN GIG+E ++LAK TV+L R + RGQ A+EKL+ E + +L+
Sbjct: 1 KVALVTGANRGIGFEIVRQLAKSGPGTVILTARDVERGQAAVEKLRAEGLS--VRFHQLD 58
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKE-KLTTKEGYEVHFGINHVGHFLLT 174
+ SI+ A V ++Y + +L+NNAG++ + T+E N G +T
Sbjct: 59 VTDDASIEAAADFVEEKYGGLDILVNNAGIAFKGFDDSTPTREQARETMKTNFFGTVDVT 118
Query: 175 NLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL-MNYYF 228
L+ ++K +V V S L G AY SK +N
Sbjct: 119 QALLPLLKKSPAGRIVNVSSGL--------------------GSLTSAYGVSKAALNAL- 157
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNL 255
L + + G+ V+ CPGW T++
Sbjct: 158 TRILAKELKETGIKVNACCPGWVKTDM 184
Score = 27.6 bits (62), Expect = 8.8
Identities = 14/45 (31%), Positives = 20/45 (44%), Gaps = 2/45 (4%)
Query: 304 GHSNPAYCNSKL-MNYYFGAELYLKYADKGVDVCVVCPGWCYTNL 347
G AY SK +N L + + G+ V CPGW T++
Sbjct: 141 GSLTSAYGVSKAALNAL-TRILAKELKETGIKVNACCPGWVKTDM 184
>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 = 108 bits (272), Expect = 5e-27
Identities = 73/248 (29%), Positives = 123/248 (49%), Gaps = 36/248 (14%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKL-KATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+ V IITGA+SG+G AK LA + V++ CR ++ ++A + L + +
Sbjct: 1 QQKPTV-IITGASSGLGLYAAKALAATGEWHVIMACRDFLKAEQAAKSLG--MPKDSYTI 57
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPI-KEKLTTKEGYEVHFGINHVGH 170
M L+L S DS++ F + + + L+ NA V P KE T +G+E+ G NH+GH
Sbjct: 58 MHLDLGSLDSVRQFVQQFRESGRPLDALVCNAAVYFPTAKEPRFTADGFELSVGTNHLGH 117
Query: 171 FLLTNLLIERIQK-------VVIVGSSLMDRGTI--------DFDNLNG-EKGFV----- 209
FLL NLL++ ++ ++IVGS + T+ + +L+G GF
Sbjct: 118 FLLCNLLLDDLKNSPNKDKRLIIVGSITGNTNTLAGNVPPKANLGDLSGLAAGFKAPIAM 177
Query: 210 ---QKGHSNPAYCNSKLMNYYFGAELYLKYADK-GVDVSVVCPGWCY--TNLFRHADIKF 263
++ AY +SK+ N EL+ ++ D+ G+ + + PG C T LFR +
Sbjct: 178 IDGKEFKGAKAYKDSKVCNMLTVRELHRRFHDETGITFASLYPG-CIADTGLFREH-VPL 235
Query: 264 YQKVMIFP 271
++ +FP
Sbjct: 236 FRT--LFP 241
>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 = 107 bits (268), Expect = 7e-27
Identities = 64/216 (29%), Positives = 108/216 (50%), Gaps = 12/216 (5%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
G+ +ITGANSGIG A +AK TV + CR+ R +EA ++++ E + I L ++
Sbjct: 1 GRSFLITGANSGIGKAAALAIAKRGGTVHMVCRNQTRAEEARKEIETESGNQNIFLHIVD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
++ + F + ++ K+HVLINNAG V +E T++G E +F N +G ++LT
Sbjct: 61 MSDPKQVWEFVEEFKEEGKKLHVLINNAGCMVNKRE--LTEDGLEKNFATNTLGTYILTT 118
Query: 176 LLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
LI ++K V+ V S M ++ +NL E+ Y +K
Sbjct: 119 HLIPVLEKEEDPRVITVSSGGMLVQKLNTNNLQSERTAFD---GTMVYAQNKRQQVIMTE 175
Query: 231 ELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQK 266
+ K+ + + SV+ PGW T R++ F+ +
Sbjct: 176 QWAKKHPE--IHFSVMHPGWADTPAVRNSMPDFHAR 209
>gnl|CDD|223377 COG0300, DltE, Short-chain dehydrogenases of various substrate
specificities [General function prediction only].
Length = 265
Score = 104 bits (262), Expect = 6e-26
Identities = 54/230 (23%), Positives = 96/230 (41%), Gaps = 28/230 (12%)
Query: 51 YKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD---G 107
PM+GK +ITGA+SGIG E AK+LA+ ++L R ++ LE L KE++D
Sbjct: 1 PGPMKGKTALITGASSGIGAELAKQLARRGYNLILVARR----EDKLEALAKELEDKTGV 56
Query: 108 QIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINH 167
++ ++ +L+ ++++ + ++ I VL+NNAG + + E +N
Sbjct: 57 EVEVIPADLSDPEALERLEDELKERGGPIDVLVNNAGFGTFGPFLELSLDEEEEMIQLNI 116
Query: 168 VGHFLLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
+ LT ++ + + ++ +GS+ G + Y +K
Sbjct: 117 LALTRLTKAVLPGMVERGAGHIINIGSAA---------------GLIP-TPYMAVYSATK 160
Query: 223 LMNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMIFPI 272
F L + GV V+ VCPG T F Y +
Sbjct: 161 AFVLSFSEALREELKGTGVKVTAVCPGPTRTEFFDAKGSDVYLLSPGELV 210
Score = 35.3 bits (82), Expect = 0.034
Identities = 16/75 (21%), Positives = 21/75 (28%), Gaps = 1/75 (1%)
Query: 307 NPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHADIKFYQKVMIFPIAM 366
Y +K F L + GV V VCPG T F Y + +
Sbjct: 153 MAVYSATKAFVLSFSEALREELKGTGVKVTAVCPGPTRTEFFDAKGSDVYLLSPGE-LVL 211
Query: 367 MYMRSANQLEVLFKK 381
A +K
Sbjct: 212 SPEDVAEAALKALEK 226
>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 = 93.0 bits (232), Expect = 1e-21
Identities = 64/215 (29%), Positives = 106/215 (49%), Gaps = 28/215 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLK---KEVQDGQIV 110
++GKV IITGA+SGIG E A LA+L A +VL R +E LE++K E+
Sbjct: 1 LQGKVVIITGASSGIGEELAYHLARLGARLVLSARR----EERLEEVKSECLELGAPSPH 56
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGH 170
++ L+++ + + + +K + + +LINNAG+S+ T+ + +N+ G
Sbjct: 57 VVPLDMSDLEDAEQVVEEALKLFGGLDILINNAGISMRSLFHDTSIDVDRKIMEVNYFGP 116
Query: 171 FLLTNL----LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL-MN 225
LT LIER Q ++V SS+ + + F AY SK +
Sbjct: 117 VALTKAALPHLIERSQGSIVVVSSIAGKIGVPF---------------RTAYAASKHALQ 161
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHAD 260
+F + L + ++ + V+VVCPG TN+ +A
Sbjct: 162 GFFDS-LRAELSEPNISVTVVCPGLIDTNIAMNAL 195
Score = 28.7 bits (65), Expect = 5.2
Identities = 15/45 (33%), Positives = 24/45 (53%), Gaps = 2/45 (4%)
Query: 309 AYCNSKL-MNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHAD 352
AY SK + +F + L + ++ + V VVCPG TN+ +A
Sbjct: 152 AYAASKHALQGFFDS-LRAELSEPNISVTVVCPGLIDTNIAMNAL 195
>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 = 88.6 bits (220), Expect = 2e-20
Identities = 55/202 (27%), Positives = 85/202 (42%), Gaps = 19/202 (9%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
KV ++TGA+ GIG E A+ LA+ V LG R+ E L L D + + +
Sbjct: 1 KVALVTGASRGIGIEIARALARDGYRVSLGLRNP----EDLAALSASGGD--VEAVPYDA 54
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNL 176
+ + + ++ +I VL++NAG+ P + + E HF IN + LT
Sbjct: 55 RDPEDARALVDALRDRFGRIDVLVHNAGIGRPTTLREGSDAELEAHFSINVIAPAELTRA 114
Query: 177 LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH-SNPAYCNSKLMNYYFGAELYLK 235
L+ L + G+ LN G ++ N Y SK L +
Sbjct: 115 LLPA----------LREAGSGRVVFLNSLSG--KRVLAGNAGYSASKFALRALAHALRQE 162
Query: 236 YADKGVDVSVVCPGWCYTNLFR 257
D GV VS VCPG+ T + +
Sbjct: 163 GWDHGVRVSAVCPGFVDTPMAQ 184
Score = 35.0 bits (81), Expect = 0.033
Identities = 19/69 (27%), Positives = 28/69 (40%), Gaps = 3/69 (4%)
Query: 282 SLMDRGTIDFDNLNGEKGFVQKGH-SNPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCP 340
+L + G+ LN G ++ N Y SK L + D GV V VCP
Sbjct: 118 ALREAGSGRVVFLNSLSG--KRVLAGNAGYSASKFALRALAHALRQEGWDHGVRVSAVCP 175
Query: 341 GWCYTNLFR 349
G+ T + +
Sbjct: 176 GFVDTPMAQ 184
>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 = 86.6 bits (215), Expect = 1e-19
Identities = 51/203 (25%), Positives = 83/203 (40%), Gaps = 23/203 (11%)
Query: 60 IITGANSGIGYETAKELAKLK-ATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLAS 118
+ITGA+ GIG E ++L TV+ CR L L I+ +++
Sbjct: 2 LITGASRGIGLELVRQLLARGNNTVIATCRDP-SAATELAALGASHSRLHILELDVTDEI 60
Query: 119 FDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLT-TKEGYEVHFGINHVGHFLLTN-- 175
+S + A+ + + VLINNAG+ E F +N +G LLT
Sbjct: 61 AESAEAVAERL--GDAGLDVLINNAGILHSYGPASEVDSEDLLEVFQVNVLGPLLLTQAF 118
Query: 176 --LLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL-MNYYFGAEL 232
LL++ + +I SS + G+I + G +Y SK +N L
Sbjct: 119 LPLLLKGARAKIINISSRV--GSIGDNTSGG----------WYSYRASKAALN-MLTKSL 165
Query: 233 YLKYADKGVDVSVVCPGWCYTNL 255
++ G+ V + PGW T++
Sbjct: 166 AVELKRDGITVVSLHPGWVRTDM 188
>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 = 86.9 bits (216), Expect = 1e-19
Identities = 61/215 (28%), Positives = 96/215 (44%), Gaps = 40/215 (18%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
KV +ITG +SGIG A LA V+ R+ + LE L + + D VL EL++
Sbjct: 1 KVVLITGCSSGIGLALALALAAQGYRVIATARN----PDKLESLGELLNDNLEVL-ELDV 55
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKE---GYEVH-FGINHVGH 170
+SIK K V++++ +I VL+NNAG + P+ E+ + +E +EV+ FG V
Sbjct: 56 TDEESIKAAVKEVIERFGRIDVLVNNAGYGLFGPL-EETSIEEVRELFEVNVFGPLRVTR 114
Query: 171 FLLTNLLIERIQ-KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
L L+ ++ ++V V S + G YC SK
Sbjct: 115 AFL-PLMRKQGSGRIVNVSSV----AGLVPTPFLG------------PYCASK-----AA 152
Query: 230 AELY---LKY--ADKGVDVSVVCPGWCYTNLFRHA 259
E L+ A G+ V+++ PG T +A
Sbjct: 153 LEALSESLRLELAPFGIKVTIIEPGPVRTGFADNA 187
>gnl|CDD|235506 PRK05565, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 247
Score = 85.7 bits (213), Expect = 3e-19
Identities = 59/214 (27%), Positives = 102/214 (47%), Gaps = 40/214 (18%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLM 112
GKV I+TGA+ GIG A+ LAK A VV+ + +EA ++L +E+++ G + +
Sbjct: 4 MGKVAIVTGASGGIGRAIAELLAKEGAKVVI---AYDINEEAAQELLEEIKEEGGDAIAV 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVGH 170
+ +++S + ++N + +++++ KI +L+NNAG+S + + T E ++ +N G
Sbjct: 61 KADVSSEEDVENLVEQIVEKFGKIDILVNNAGISNFGLVTD--MTDEEWDRVIDVNLTGV 118
Query: 171 FLLT----NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
LLT +I+R V++ SS+ G L G Y SK
Sbjct: 119 MLLTRYALPYMIKRKSGVIVNISSI--WG------LIGA-------SCEVLYSASK---- 159
Query: 227 YFGAELYL------KYADKGVDVSVVCPGWCYTN 254
GA + A G+ V+ V PG T
Sbjct: 160 --GAVNAFTKALAKELAPSGIRVNAVAPGAIDTE 191
>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 = 85.2 bits (211), Expect = 6e-19
Identities = 61/226 (26%), Positives = 94/226 (41%), Gaps = 31/226 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQE-ALEKLKKEVQDGQIVLM 112
+ GKV IITG++SGIG TA A+L A + L R R +E L+ V + +I+L+
Sbjct: 1 LSGKVAIITGSSSGIGAGTAILFARLGARLALTGRDAERLEETRQSCLQAGVSEKKILLV 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTK--EGYEVHFGINHVGH 170
+L + + ++ ++ +L+NNAG + K + E Y+ +N
Sbjct: 61 VADLTEEEGQDRIISTTLAKFGRLDILVNNAG--ILAKGGGEDQDIEEYDKVMNLNLRAV 118
Query: 171 FLLTNLLIERIQK----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
LT L + + K +V V S + G + F YC SK
Sbjct: 119 IYLTKLAVPHLIKTKGEIVNVSS------------VAGGRSF----PGVLYYCISKAALD 162
Query: 227 YFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADI------KFYQK 266
F L+ A KGV V+ V PG T R + KF +
Sbjct: 163 QFTRCTALELAPKGVRVNSVSPGVIVTGFHRRMGMPEEQYIKFLSR 208
Score = 30.8 bits (70), Expect = 1.1
Identities = 18/58 (31%), Positives = 21/58 (36%), Gaps = 6/58 (10%)
Query: 307 NPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHADI------KFYQK 358
YC SK F L+ A KGV V V PG T R + KF +
Sbjct: 151 VLYYCISKAALDQFTRCTALELAPKGVRVNSVSPGVIVTGFHRRMGMPEEQYIKFLSR 208
>gnl|CDD|235712 PRK06138, PRK06138, short chain dehydrogenase; Provisional.
Length = 252
Score = 84.8 bits (210), Expect = 8e-19
Identities = 60/223 (26%), Positives = 90/223 (40%), Gaps = 41/223 (18%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ G+V I+TGA SGIG TAK A+ A VV+ R + A G+ +
Sbjct: 3 LAGRVAIVTGAGSGIGRATAKLFAREGARVVVADR---DAEAAERVAAAIAAGGRAFARQ 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
++ S ++++ V ++ ++ VL+NNAG T + ++ +N G FL
Sbjct: 60 GDVGSAEAVEALVDFVAARWGRLDVLVNNAGFGCGGTVVTTDEADWDAVMRVNVGGVFLW 119
Query: 174 TNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
I +Q+ +V S L L G +G AY SK
Sbjct: 120 AKYAIPIMQRQGGGSIVNTASQLA---------LAGGRG-------RAAYVASK------ 157
Query: 229 GAELYL------KYADKGVDVSVVCPGWCYTNLF-----RHAD 260
GA L +A G+ V+ V PG T F RHAD
Sbjct: 158 GAIASLTRAMALDHATDGIRVNAVAPGTIDTPYFRRIFARHAD 200
Score = 31.3 bits (71), Expect = 0.69
Identities = 20/60 (33%), Positives = 22/60 (36%), Gaps = 17/60 (28%)
Query: 304 GHSNPAYCNSKLMNYYFGAELYL------KYADKGVDVCVVCPGWCYTNLF-----RHAD 352
G AY SK GA L +A G+ V V PG T F RHAD
Sbjct: 147 GRGRAAYVASK------GAIASLTRAMALDHATDGIRVNAVAPGTIDTPYFRRIFARHAD 200
>gnl|CDD|180773 PRK06949, PRK06949, short chain dehydrogenase; Provisional.
Length = 258
Score = 84.8 bits (210), Expect = 8e-19
Identities = 59/208 (28%), Positives = 104/208 (50%), Gaps = 11/208 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVL 111
+EGKV ++TGA+SG+G A+ LA+ A VVL R + E L++L+ E+ + G +
Sbjct: 7 LEGKVALVTGASSGLGARFAQVLAQAGAKVVLASRRV----ERLKELRAEIEAEGGAAHV 62
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
+ L++ + SIK + + I +L+NN+GVS K T ++ F N G F
Sbjct: 63 VSLDVTDYQSIKAAVAHAETEAGTIDILVNNSGVSTTQKLVDVTPADFDFVFDTNTRGAF 122
Query: 172 LLTNLLIER-IQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
+ + +R I + G++ I+ ++ G + Q G YC SK +
Sbjct: 123 FVAQEVAKRMIARAKGAGNTKPGGRIINIASVAGLRVLPQIG----LYCMSKAAVVHMTR 178
Query: 231 ELYLKYADKGVDVSVVCPGWCYTNLFRH 258
+ L++ G++V+ +CPG+ T + H
Sbjct: 179 AMALEWGRHGINVNAICPGYIDTEINHH 206
>gnl|CDD|226674 COG4221, COG4221, Short-chain alcohol dehydrogenase of unknown
specificity [General function prediction only].
Length = 246
Score = 84.6 bits (210), Expect = 9e-19
Identities = 53/213 (24%), Positives = 90/213 (42%), Gaps = 31/213 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV +ITGA+SGIG TA+ LA+ A VVL R +E LE L E+ G + +
Sbjct: 4 LKGKVALITGASSGIGEATARALAEAGAKVVLAARR----EERLEALADEIGAGAALALA 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
L++ +++ + + +++ +I +L+NNAG+++ + ++ N G
Sbjct: 60 LDVTDRAAVEAAIEALPEEFGRIDILVNNAGLALGDPLDEADLDDWDRMIDTNVKGLLNG 119
Query: 174 TNL----LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH----SNPAYCNSKLMN 225
T ++ER +I S G Y +K
Sbjct: 120 TRAVLPGMVERKSGHIINLGS-------------------IAGRYPYPGGAVYGATKAAV 160
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNLFRH 258
F L + A G+ V+V+ PG T F
Sbjct: 161 RAFSLGLRQELAGTGIRVTVISPGLVETTEFST 193
>gnl|CDD|131680 TIGR02632, RhaD_aldol-ADH, rhamnulose-1-phosphate aldolase/alcohol
dehydrogenase.
Length = 676
Score = 86.4 bits (214), Expect = 3e-18
Identities = 57/260 (21%), Positives = 109/260 (41%), Gaps = 28/260 (10%)
Query: 5 ILSFFRDNDKLLLHSLLYTTTI----------TLSALVISRYFKSRSW----SKLKASPF 50
++SF +D + + Y I +L F W +KL+ P
Sbjct: 349 MISFGKDKETARVAREFYVNAINVMRGAEAVSEYVSLPEQEAFDIEYWPLEEAKLRRMPK 408
Query: 51 YKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIV 110
K + +V +TG GIG ETA+ LA A VVL ++ + ++ + G+ V
Sbjct: 409 EKTLARRVAFVTGGAGGIGRETARRLAAEGAHVVLADLNLEAAEAVAAEINGQFGAGRAV 468
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHV 168
+++++ ++K +V Y + +++NNAG++ P +E TT + ++++ I
Sbjct: 469 ALKMDVTDEQAVKAAFADVALAYGGVDIVVNNAGIATSSPFEE--TTLQEWQLNLDILAT 526
Query: 169 GHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
G+FL+ R + +G +++ K V G + AY +K +
Sbjct: 527 GYFLVAREAF-RQMREQGLGGNIV---------FIASKNAVYAGKNASAYSAAKAAEAHL 576
Query: 229 GAELYLKYADKGVDVSVVCP 248
L + G+ V+ V P
Sbjct: 577 ARCLAAEGGTYGIRVNTVNP 596
>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 = 82.3 bits (204), Expect = 4e-18
Identities = 59/234 (25%), Positives = 97/234 (41%), Gaps = 51/234 (21%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLA 117
+ +ITG SGIG A E AK A VV+ + +E ++K G++ + +++
Sbjct: 1 IVLITGGGSGIGRLLALEFAKRGAKVVILDINEKGAEETANNVRKA--GGKVHYYKCDVS 58
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL-TTKEGYEVHFGINHVGHFLLT-N 175
+ + AK + K+ + +LINNAGV V K+ L E E F +N + HF T
Sbjct: 59 KREEVYEAAKKIKKEVGDVTILINNAGV-VSGKKLLELPDEEIEKTFEVNTLAHFWTTKA 117
Query: 176 LLIERIQK----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPA----YCNSKLMNYY 227
L + +++ +V + S G +PA YC SK
Sbjct: 118 FLPDMLERNHGHIVTIASVA--------------------GLISPAGLADYCASK----- 152
Query: 228 FGA---------ELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMIFPI 272
A EL Y G+ ++VCP + T +F+ + ++ PI
Sbjct: 153 AAAVGFHESLRLEL-KAYGKPGIKTTLVCPYFINTGMFQGVKTP---RPLLAPI 202
Score = 31.8 bits (73), Expect = 0.50
Identities = 16/65 (24%), Positives = 24/65 (36%), Gaps = 18/65 (27%)
Query: 309 AYCNSKLMNYYFGA---------ELYLKYADKGVDVCVVCPGWCYTNLFRHADIKFYQKV 359
YC SK A EL Y G+ +VCP + T +F+ +
Sbjct: 147 DYCASK-----AAAVGFHESLRLEL-KAYGKPGIKTTLVCPYFINTGMFQGVKTP---RP 197
Query: 360 MIFPI 364
++ PI
Sbjct: 198 LLAPI 202
>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 = 82.4 bits (204), Expect = 9e-18
Identities = 58/246 (23%), Positives = 91/246 (36%), Gaps = 53/246 (21%)
Query: 57 KVCIITGANSGIGYETAKELAKLKA-----TVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
KV ++TGANSG+G + L T++L CR++ R + A L D ++V
Sbjct: 2 KVVLVTGANSGLGLAICERLLAEDDENPELTLILACRNLQRAEAACRALLASHPDARVVF 61
Query: 112 --MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV----------------PIKEK- 152
+ ++L++ S+ AK + K+YP++ L NAG+ P+
Sbjct: 62 DYVLVDLSNMVSVFAAAKELKKRYPRLDYLYLNAGIMPNPGIDWIGAIKEVLTNPLFAVT 121
Query: 153 ----LTTKEGYEVH------------FGINHVGHFLLTN----LLIERIQ--KVVIVGSS 190
EG F N GH+ L LL +++ S
Sbjct: 122 NPTYKIQAEGLLSQGDKATEDGLGEVFQTNVFGHYYLIRELEPLLCRSDGGSQIIWTSSL 181
Query: 191 LMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVSVVCPGW 250
+++ KG Y +SK + L K+ GV VV PG
Sbjct: 182 NASPKYFSLEDIQHLKG-------PAPYSSSKYLVDLLSLALNRKFNKLGVYSYVVHPGI 234
Query: 251 CYTNLF 256
C TNL
Sbjct: 235 CTTNLT 240
Score = 32.0 bits (73), Expect = 0.49
Identities = 21/73 (28%), Positives = 28/73 (38%), Gaps = 8/73 (10%)
Query: 277 VIVGSSLM-DRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDV 335
+I SSL +++ KG Y +SK + L K+ GV
Sbjct: 175 IIWTSSLNASPKYFSLEDIQHLKG-------PAPYSSSKYLVDLLSLALNRKFNKLGVYS 227
Query: 336 CVVCPGWCYTNLF 348
VV PG C TNL
Sbjct: 228 YVVHPGICTTNLT 240
>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 = 80.7 bits (200), Expect = 2e-17
Identities = 51/199 (25%), Positives = 95/199 (47%), Gaps = 25/199 (12%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
KV ++TGA+ GIG A LA A V + RS E +E++K G +E ++
Sbjct: 1 KVALVTGASRGIGRAIALRLAAEGAKVAVTDRSEEAAAETVEEIKA--LGGNAAALEADV 58
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL---TTKEGYEVHFGINHVGHFLL 173
+ ++++ + V ++ + +L+NNAG++ ++ L ++E ++ +N G F +
Sbjct: 59 SDREAVEALVEKVEAEFGPVDILVNNAGIT---RDNLLMRMSEEDWDAVINVNLTGVFNV 115
Query: 174 TNLLIERIQKVVIVGSSLMDRGT---IDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
T + VI +++ R + I+ ++ G G G +N Y SK F
Sbjct: 116 T--------QAVI--RAMIKRRSGRIINISSVVGLIG--NPGQAN--YAASKAGVIGFTK 161
Query: 231 ELYLKYADKGVDVSVVCPG 249
L + A +G+ V+ V PG
Sbjct: 162 SLAKELASRGITVNAVAPG 180
>gnl|CDD|215720 pfam00106, adh_short, short chain dehydrogenase. This family
contains a wide variety of dehydrogenases.
Length = 167
Score = 78.0 bits (193), Expect = 4e-17
Identities = 28/139 (20%), Positives = 55/139 (39%), Gaps = 9/139 (6%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGC-RSMIRGQEALEKLKKEVQD--GQIVLME 113
+ITG G+G A+ LA A ++ R +L E++ ++ +
Sbjct: 1 GTVLITGGTGGLGLALARWLAAEGARHLVLVSRRGPA--PGAAELVAELEALGAEVTVAA 58
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHF 171
++A D++ + + +++NAGV P++E T E +E G +
Sbjct: 59 CDVADRDALAALLAALPAALGPLDGVVHNAGVLDDGPLEE--LTPERFERVLAPKVTGAW 116
Query: 172 LLTNLLIERIQKVVIVGSS 190
L L + ++ SS
Sbjct: 117 NLHELTRDLDLGAFVLFSS 135
>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 = 78.5 bits (194), Expect = 1e-16
Identities = 57/223 (25%), Positives = 105/223 (47%), Gaps = 32/223 (14%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLM 112
GKV ++TGA+ GIG AK LA+ A+VV+ S + A E++ E++ G+ + +
Sbjct: 2 AGKVALVTGASRGIGRAIAKRLARDGASVVVNYAS---SKAAAEEVVAEIEAAGGKAIAV 58
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGH 170
+ +++ + K + + +L+NNAGV + PI E T++E ++ F +N G
Sbjct: 59 QADVSDPSQVARLFDAAEKAFGGVDILVNNAGVMLKKPIAE--TSEEEFDRMFTVNTKGA 116
Query: 171 FLLTNLLIERIQ---KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
F + +R++ +++ + SSL T ++ G K V+ A+
Sbjct: 117 FFVLQEAAKRLRDGGRIINISSSLTAAYTPNYGAYAGSKAAVE------AFTRV------ 164
Query: 228 FGAELYLKYADKGVDVSVVCPGWCYTNLFR----HADIKFYQK 266
EL +G+ V+ V PG T++F ++ Y K
Sbjct: 165 LAKEL----GGRGITVNAVAPGPVDTDMFYAGKTEEAVEGYAK 203
>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 = 78.1 bits (193), Expect = 1e-16
Identities = 60/202 (29%), Positives = 95/202 (47%), Gaps = 25/202 (12%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE-VQDGQIVLME- 113
GK +ITG +SGIG AKEL K A V++ RS + +EA+E+++ E GQ V
Sbjct: 1 GKHVLITGGSSGIGKALAKELVKEGANVIIVARSESKLEEAVEEIEAEANASGQKVSYIS 60
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK-EKLTTKE---GYEV-HFGINHV 168
+L+ ++ ++ +++ +++N AG+S+P E LT +E G +V +FG +V
Sbjct: 61 ADLSDYEEVEQAFAQAVEKGGPPDLVVNCAGISIPGLFEDLTAEEFERGMDVNYFGSLNV 120
Query: 169 GHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQK-GHSNPAYCNSKLMNYY 227
H +L + +R +V V S V G+S AYC SK
Sbjct: 121 AHAVLPLMKEQRPGHIVFVSSQA---------------ALVGIYGYS--AYCPSKFALRG 163
Query: 228 FGAELYLKYADKGVDVSVVCPG 249
L + + VSVV P
Sbjct: 164 LAESLRQELKPYNIRVSVVYPP 185
>gnl|CDD|235500 PRK05557, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 248
Score = 78.3 bits (194), Expect = 1e-16
Identities = 28/92 (30%), Positives = 50/92 (54%), Gaps = 1/92 (1%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+EGKV ++TGA+ GIG A+ LA A VV+ S G EAL G+ + ++
Sbjct: 3 LEGKVALVTGASRGIGRAIAERLAAQGANVVINYASSEAGAEALVAEIGA-LGGKALAVQ 61
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+++ +S++ ++ + +L+NNAG+
Sbjct: 62 GDVSDAESVERAVDEAKAEFGGVDILVNNAGI 93
>gnl|CDD|235726 PRK06181, PRK06181, short chain dehydrogenase; Provisional.
Length = 263
Score = 78.5 bits (194), Expect = 1e-16
Identities = 63/214 (29%), Positives = 109/214 (50%), Gaps = 33/214 (15%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLME 113
GKV IITGA+ GIG A LA+ A +VL R+ + L L +E+ D G+ +++
Sbjct: 1 GKVVIITGASEGIGRALAVRLARAGAQLVLAARN----ETRLASLAQELADHGGEALVVP 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK-EKLTTKEGYEVHFGINHVG--- 169
+++ ++ + + + ++ I +L+NNAG+++ + ++LT +E +N++G
Sbjct: 57 TDVSDAEACERLIEAAVARFGGIDILVNNAGITMWSRFDELTDLSVFERVMRVNYLGAVY 116
Query: 170 --HFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFV-QKGHSNPAYCNSK-LMN 225
H L +L R Q VV+ SSL G S Y SK ++
Sbjct: 117 CTHAALPHLKASRGQIVVV--SSL--------------AGLTGVPTRS--GYAASKHALH 158
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
+F + L ++ AD GV V+VVCPG+ T++ + A
Sbjct: 159 GFFDS-LRIELADDGVAVTVVCPGFVATDIRKRA 191
Score = 35.3 bits (82), Expect = 0.039
Identities = 17/44 (38%), Positives = 27/44 (61%), Gaps = 2/44 (4%)
Query: 309 AYCNSK-LMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHA 351
Y SK ++ +F + L ++ AD GV V VVCPG+ T++ + A
Sbjct: 149 GYAASKHALHGFFDS-LRIELADDGVAVTVVCPGFVATDIRKRA 191
>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 = 77.3 bits (191), Expect = 2e-16
Identities = 51/197 (25%), Positives = 90/197 (45%), Gaps = 29/197 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ G +ITG SGIG A++ + TV++ R +E L + KKE+ I +
Sbjct: 3 LTGNTVLITGGTSGIGLALARKFLEAGNTVIITGRR----EERLAEAKKEL--PNIHTIV 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPI--KEKLTTKEGYEVHFGINHVGHF 171
L++ +S++ A+ ++ +YP + +LINNAG+ PI ++ + + + N +G
Sbjct: 57 LDVGDAESVEALAEALLSEYPNLDILINNAGIQRPIDLRDPASDLDKADTEIDTNLIGPI 116
Query: 172 LLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
L + ++K +V V S L FV +NP YC +K +
Sbjct: 117 RLIKAFLPHLKKQPEATIVNVSSGL---------------AFVPMA-ANPVYCATKAALH 160
Query: 227 YFGAELYLKYADKGVDV 243
+ L + D GV+V
Sbjct: 161 SYTLALRHQLKDTGVEV 177
>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 = 77.0 bits (190), Expect = 4e-16
Identities = 63/267 (23%), Positives = 96/267 (35%), Gaps = 46/267 (17%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
KV IITG SGIG TAK L K A V + A +L+ + ++ ++
Sbjct: 1 KVAIITGGASGIGLATAKLLLKKGAKVAIL--DRNENPGAAAELQAINPKVKATFVQCDV 58
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNL 176
S++ + K ++++ ++ +LINNAG+ L K + NL
Sbjct: 59 TSWEQLAAAFKKAIEKFGRVDILINNAGI-------LDEKSYLFAGKLPPPWEKTIDVNL 111
Query: 177 LIERIQKVVIVGSSL----MDRGTIDFDNLNGEKGFV---------QKGHSNPAYCNSK- 222
VI + L MD+ N G+ G + P Y SK
Sbjct: 112 ------TGVINTTYLALHYMDK------NKGGKGGVIVNIGSVAGLYPAPQFPVYSASKH 159
Query: 223 -LMNYY--FGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMIFPIAMM-VVI 278
++ + L K GV V+ +CPG+ T L K + + P VV
Sbjct: 160 GVVGFTRSLADLLEYKT---GVRVNAICPGFTNTPLLPDLVAKEAEMLPSAPTQSPEVVA 216
Query: 279 VGSSLMDRGTIDFDNLNGEKGFVQKGH 305
+ D D NG V G
Sbjct: 217 KA---IVYLIED-DEKNGAIWIVDGGK 239
>gnl|CDD|237100 PRK12429, PRK12429, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 258
Score = 75.7 bits (187), Expect = 1e-15
Identities = 57/211 (27%), Positives = 96/211 (45%), Gaps = 27/211 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV ++TGA SGIG E A LAK A VV+ + A E L+K G+ + +
Sbjct: 2 LKGKVALVTGAASGIGLEIALALAKEGAKVVIADLNDEAAAAAAEALQK--AGGKAIGVA 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
+++ ++I ++ + + +L+NNAG+ PI E T E ++ I G F
Sbjct: 60 MDVTDEEAINAGIDYAVETFGGVDILVNNAGIQHVAPI-EDFPT-EKWKKMIAIMLDGAF 117
Query: 172 LLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
L T + ++ ++ + S ++G G K AY ++K
Sbjct: 118 LTTKAALPIMKAQGGGRIINMAS------------VHGLVGSAGKA----AYVSAKHGLI 161
Query: 227 YFGAELYLKYADKGVDVSVVCPGWCYTNLFR 257
+ L+ A GV V+ +CPG+ T L R
Sbjct: 162 GLTKVVALEGATHGVTVNAICPGYVDTPLVR 192
>gnl|CDD|235962 PRK07201, PRK07201, short chain dehydrogenase; Provisional.
Length = 657
Score = 78.1 bits (193), Expect = 1e-15
Identities = 34/97 (35%), Positives = 57/97 (58%), Gaps = 6/97 (6%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIV 110
P+ GKV +ITGA+SGIG TA ++A+ ATV L + R EAL++L E+ + G
Sbjct: 368 PLVGKVVLITGASSGIGRATAIKVAEAGATVFL----VARNGEALDELVAEIRAKGGTAH 423
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
+L ++ + K+++ ++ + L+NNAG S+
Sbjct: 424 AYTCDLTDSAAVDHTVKDILAEHGHVDYLVNNAGRSI 460
>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 = 74.6 bits (184), Expect = 2e-15
Identities = 24/90 (26%), Positives = 52/90 (57%), Gaps = 5/90 (5%)
Query: 59 CIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMELNL 116
++TGA+ GIG A +LAK A V++ RS +E E++ +E++ + + + ++
Sbjct: 1 ALVTGASRGIGRAIALKLAKEGAKVIITYRS---SEEGAEEVVEELKAYGVKALGVVCDV 57
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVS 146
+ + +K + + ++ I +L+NNAG++
Sbjct: 58 SDREDVKAVVEEIEEELGPIDILVNNAGIT 87
>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 = 74.8 bits (184), Expect = 2e-15
Identities = 54/202 (26%), Positives = 90/202 (44%), Gaps = 18/202 (8%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
++ ++TG GIG + LAK V C EA + ++ ++E ++
Sbjct: 1 RIALVTGGMGGIGTAICQRLAKDGYRVAANCGPNEERAEAWLQ-EQGALGFDFRVVEGDV 59
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNL 176
+SF+S K V + I VL+NNAG++ K T E + N F +T
Sbjct: 60 SSFESCKAAVAKVEAELGPIDVLVNNAGITRDATFKKMTYEQWSAVIDTNLNSVFNVTQP 119
Query: 177 LIERIQKVVIVGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELY 233
+I+ + +RG I+ ++NG+KG Q G +N Y +K F L
Sbjct: 120 VID----------GMRERGWGRIINISSVNGQKG--QFGQTN--YSAAKAGMIGFTKALA 165
Query: 234 LKYADKGVDVSVVCPGWCYTNL 255
+ A KGV V+ + PG+ T++
Sbjct: 166 QEGATKGVTVNTISPGYIATDM 187
Score = 33.2 bits (76), Expect = 0.15
Identities = 23/72 (31%), Positives = 36/72 (50%), Gaps = 7/72 (9%)
Query: 279 VGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDV 335
V + +RG I+ ++NG+KG Q G +N Y +K F L + A KGV V
Sbjct: 120 VIDGMRERGWGRIINISSVNGQKG--QFGQTN--YSAAKAGMIGFTKALAQEGATKGVTV 175
Query: 336 CVVCPGWCYTNL 347
+ PG+ T++
Sbjct: 176 NTISPGYIATDM 187
>gnl|CDD|235628 PRK05855, PRK05855, short chain dehydrogenase; Validated.
Length = 582
Score = 76.2 bits (188), Expect = 5e-15
Identities = 59/230 (25%), Positives = 95/230 (41%), Gaps = 56/230 (24%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQI 109
P GK+ ++TGA SGIG ETA A+ A VV S I + A E+ + ++
Sbjct: 311 GPFSGKLVVVTGAGSGIGRETALAFAREGAEVVA---SDID-EAAAERTAELIRAAGAVA 366
Query: 110 VLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINH 167
++++ D+++ FA+ V ++ +++NNAG+ + + T+ E ++ +N
Sbjct: 367 HAYRVDVSDADAMEAFAEWVRAEHGVPDIVVNNAGIGMAGGFLD--TSAEDWDRVLDVNL 424
Query: 168 VGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH-------------- 213
G VI G L R + E+G GH
Sbjct: 425 WG---------------VIHGCRLFGRQMV-------ERG--TGGHIVNVASAAAYAPSR 460
Query: 214 SNPAYCNSKLMNYYFG----AELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
S PAY SK AEL A G+ V+ +CPG+ TN+
Sbjct: 461 SLPAYATSKAAVLMLSECLRAEL----AAAGIGVTAICPGFVDTNIVATT 506
Score = 34.2 bits (79), Expect = 0.12
Identities = 16/48 (33%), Positives = 20/48 (41%), Gaps = 8/48 (16%)
Query: 308 PAYCNSKLMNYYFG----AELYLKYADKGVDVCVVCPGWCYTNLFRHA 351
PAY SK AEL A G+ V +CPG+ TN+
Sbjct: 463 PAYATSKAAVLMLSECLRAEL----AAAGIGVTAICPGFVDTNIVATT 506
>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 = 73.5 bits (181), Expect = 6e-15
Identities = 53/218 (24%), Positives = 98/218 (44%), Gaps = 27/218 (12%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL-MEL 114
GKV ++TGA+ GIG+ A LA+ A +V+ R+ + +EA + ++KE G
Sbjct: 5 GKVALVTGASRGIGFGIASGLAEAGANIVINSRNEEKAEEAQQLIEKE---GVEATAFTC 61
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLT 174
+++ ++IK + + + + KI +L+NNAG+ + + + +N G F ++
Sbjct: 62 DVSDEEAIKAAVEAIEEDFGKIDILVNNAGIIRRHPAEEFPEAEWRDVIDVNLNGVFFVS 121
Query: 175 NLLIERIQKVVIVGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSK--LMNYYFG 229
V ++ +G I+ +L E G PAY SK +
Sbjct: 122 QA----------VARHMIKQGHGKIINICSLLSELGGP----PVPAYAASKGGVAG--LT 165
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNLFRH--ADIKFYQ 265
L ++A G+ V+ + PG+ T + AD +F
Sbjct: 166 KALATEWARHGIQVNAIAPGYFATEMTEAVVADPEFND 203
>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 = 73.6 bits (181), Expect = 7e-15
Identities = 52/208 (25%), Positives = 90/208 (43%), Gaps = 23/208 (11%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVL-GCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
GKV ++TG+ SGIG A+ LA A +VL G EA+ +++
Sbjct: 2 GKVALVTGSTSGIGLGIARALAAAGANIVLNGFGDAAE-IEAVRAGLAAKHGVKVLYHGA 60
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVGHFL 172
+L+ +I++ +Q+ + +L+NNAG+ PI++ T E ++ +N F
Sbjct: 61 DLSKPAAIEDMVAYAQRQFGGVDILVNNAGIQHVAPIEDFPT--EKWDAIIALNLSAVFH 118
Query: 173 LTNLLIERIQKVVIVGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
T L + ++K +G I+ +++G K AY +K
Sbjct: 119 TTRLALPHMKK----------QGWGRIINIASVHGLVASANKS----AYVAAKHGVVGLT 164
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNLFR 257
+ L+ A GV + +CPGW T L
Sbjct: 165 KVVALETAGTGVTCNAICPGWVLTPLVE 192
Score = 29.7 bits (67), Expect = 2.5
Identities = 16/61 (26%), Positives = 24/61 (39%), Gaps = 4/61 (6%)
Query: 289 IDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLF 348
I+ +++G K AY +K + L+ A GV +CPGW T L
Sbjct: 136 INIASVHGLVASANKS----AYVAAKHGVVGLTKVVALETAGTGVTCNAICPGWVLTPLV 191
Query: 349 R 349
Sbjct: 192 E 192
>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 = 73.2 bits (180), Expect = 8e-15
Identities = 50/207 (24%), Positives = 83/207 (40%), Gaps = 23/207 (11%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLME 113
GK ++TGA SGIG A+ LA A VV+ G+E E K D G ++ +
Sbjct: 1 GKTALVTGAASGIGLAIARALAAAGANVVVND----FGEEGAEAAAKVAGDAGGSVIYLP 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
++ D I + ++ + +L+NNAG+ PI+E E ++ + F
Sbjct: 57 ADVTKEDEIADMIAAAAAEFGGLDILVNNAGIQHVAPIEEFPP--EDWDRIIAVMLTSAF 114
Query: 172 LLTNLLIERIQKVVIVGSSLMDRGTI-DFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
+ + G I + + +G K AY +K
Sbjct: 115 HTI--------RAALPHMKKQGWGRIINIASAHGLVASPFKS----AYVAAKHGLIGLTK 162
Query: 231 ELYLKYADKGVDVSVVCPGWCYTNLFR 257
L L+ A+ G+ V+ +CPG+ T L
Sbjct: 163 VLALEVAEHGITVNAICPGYVRTPLVE 189
>gnl|CDD|181305 PRK08226, PRK08226, short chain dehydrogenase; Provisional.
Length = 263
Score = 73.3 bits (180), Expect = 9e-15
Identities = 53/206 (25%), Positives = 89/206 (43%), Gaps = 25/206 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVL 111
+ GK +ITGA GIG A+ A+ A ++L S +EKL E+ + +
Sbjct: 4 LTGKTALITGALQGIGEGIARVFARHGANLILLDIS-----PEIEKLADELCGRGHRCTA 58
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
+ ++ S+ K ++ +I +L+NNAGV + E + H IN G +
Sbjct: 59 VVADVRDPASVAAAIKRAKEKEGRIDILVNNAGVCRLGSFLDMSDEDRDFHIDINIKGVW 118
Query: 172 LLTNL----LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
+T +I R +++ SS+ G + D GE AY +K
Sbjct: 119 NVTKAVLPEMIARKDGRIVMMSSVT--GDMVAD--PGET----------AYALTKAAIVG 164
Query: 228 FGAELYLKYADKGVDVSVVCPGWCYT 253
L ++YA G+ V+ +CPG+ T
Sbjct: 165 LTKSLAVEYAQSGIRVNAICPGYVRT 190
>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 = 72.8 bits (179), Expect = 9e-15
Identities = 50/178 (28%), Positives = 74/178 (41%), Gaps = 33/178 (18%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
G +ITG SGIG AK +L TV++ R+ E L + K E + I
Sbjct: 3 TTGNTILITGGASGIGLALAKRFLELGNTVIICGRNE----ERLAEAKAENPE--IHTEV 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPI----KEKLTTKEGYEVHFGINHVG 169
++A DS + + + K+YP ++VLINNAG+ E L E+ N +
Sbjct: 57 CDVADRDSRRELVEWLKKEYPNLNVLINNAGIQRNEDLTGAEDLLDDAEQEIA--TNLLA 114
Query: 170 HFLLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
LT LL+ + + ++ V S L FV S P YC +K
Sbjct: 115 PIRLTALLLPHLLRQPEATIINVSSGL---------------AFVPMA-STPVYCATK 156
>gnl|CDD|235546 PRK05653, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Validated.
Length = 246
Score = 72.9 bits (180), Expect = 1e-14
Identities = 45/214 (21%), Positives = 93/214 (43%), Gaps = 49/214 (22%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GK ++TGA+ GIG A LA A VV+ + +EA E L E++ G+ +
Sbjct: 3 LQGKTALVTGASRGIGRAIALRLAADGAKVVIYDSN----EEAAEALAAELRAAGGEARV 58
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVG 169
+ +++ +++ + ++ + + +L+NNAG++ + +++ ++ V +N G
Sbjct: 59 LVFDVSDEAAVRALIEAAVEAFGALDILVNNAGITRDALL-PRMSEEDWDRV-IDVNLTG 116
Query: 170 HFLLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLM 224
F + + + K +V + S ++G G + + Y +K
Sbjct: 117 TFNVVRAALPPMIKARYGRIVNISS------------VSGVTGNPGQTN----YSAAK-- 158
Query: 225 NYYFG---------AELYLKYADKGVDVSVVCPG 249
G EL A +G+ V+ V PG
Sbjct: 159 ---AGVIGFTKALALEL----ASRGITVNAVAPG 185
>gnl|CDD|235935 PRK07109, PRK07109, short chain dehydrogenase; Provisional.
Length = 334
Score = 73.8 bits (182), Expect = 1e-14
Identities = 46/153 (30%), Positives = 81/153 (52%), Gaps = 15/153 (9%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQI 109
KP+ +V +ITGA++G+G TA+ A+ A VVL + RG+E LE L E++ G+
Sbjct: 4 KPIGRQVVVITGASAGVGRATARAFARRGAKVVL----LARGEEGLEALAAEIRAAGGEA 59
Query: 110 VLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINH 167
+ + ++A ++++ A ++ I +NNA V+V P ++ T E + + +
Sbjct: 60 LAVVADVADAEAVQAAADRAEEELGPIDTWVNNAMVTVFGPFED--VTPEEFRRVTEVTY 117
Query: 168 VG--HFLLTNL--LIERIQKVVI-VGSSLMDRG 195
+G H L L + R + +I VGS+L R
Sbjct: 118 LGVVHGTLAALRHMRPRDRGAIIQVGSALAYRS 150
>gnl|CDD|183775 PRK12826, PRK12826, 3-ketoacyl-(acyl-carrier-protein) reductase;
Reviewed.
Length = 251
Score = 72.6 bits (179), Expect = 1e-14
Identities = 34/149 (22%), Positives = 63/149 (42%), Gaps = 6/149 (4%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+ +EG+V ++TGA GIG A LA A V++ E + E G+
Sbjct: 2 RDLEGRVALVTGAARGIGRAIAVRLAADGAEVIVVDICGDDAAATAELV--EAAGGKARA 59
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
++++ ++K ++ + ++ +L+ NAG+ E +E +N G F
Sbjct: 60 RQVDVRDRAALKAAVAAGVEDFGRLDILVANAGIFPLTPFAEMDDEQWERVIDVNLTGTF 119
Query: 172 LLTNL----LIERIQKVVIVGSSLMDRGT 196
LLT LI +++ SS+
Sbjct: 120 LLTQAALPALIRAGGGRIVLTSSVAGPRV 148
>gnl|CDD|171822 PRK12938, PRK12938, acetyacetyl-CoA reductase; Provisional.
Length = 246
Score = 72.0 bits (176), Expect = 2e-14
Identities = 63/208 (30%), Positives = 99/208 (47%), Gaps = 20/208 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGC-RSMIRGQEALEKLKKEVQDGQIVLM 112
M ++ +TG GIG + L K VV GC + R + LE K D +
Sbjct: 1 MSQRIAYVTGGMGGIGTSICQRLHKDGFKVVAGCGPNSPRRVKWLEDQKALGFD--FIAS 58
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
E N+ +DS K V + +I VL+NNAG++ + + T+E + N
Sbjct: 59 EGNVGDWDSTKAAFDKVKAEVGEIDVLVNNAGITRDVVFRKMTREDWTAVIDTN------ 112
Query: 173 LTNLLIERIQKVVIVGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
LT+L + K VI G +++RG I+ ++NG+KG Q G +N Y +K + F
Sbjct: 113 LTSLF--NVTKQVIDG--MVERGWGRIINISSVNGQKG--QFGQTN--YSTAKAGIHGFT 164
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNLFR 257
L + A KGV V+ V PG+ T++ +
Sbjct: 165 MSLAQEVATKGVTVNTVSPGYIGTDMVK 192
Score = 34.2 bits (78), Expect = 0.069
Identities = 23/70 (32%), Positives = 38/70 (54%), Gaps = 7/70 (10%)
Query: 283 LMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVCVVC 339
+++RG I+ ++NG+KG Q G +N Y +K + F L + A KGV V V
Sbjct: 127 MVERGWGRIINISSVNGQKG--QFGQTN--YSTAKAGIHGFTMSLAQEVATKGVTVNTVS 182
Query: 340 PGWCYTNLFR 349
PG+ T++ +
Sbjct: 183 PGYIGTDMVK 192
>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 = 71.9 bits (177), Expect = 2e-14
Identities = 49/223 (21%), Positives = 85/223 (38%), Gaps = 57/223 (25%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG-----QIV 110
G ++TGA GIG A+ELAK V+L + R QE L+ + KE+++ + +
Sbjct: 1 GTWAVVTGATDGIGKAYAEELAKRGFNVIL----ISRTQEKLDAVAKEIEEKYGVETKTI 56
Query: 111 LMELNLAS--FDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHV 168
+ + ++ I+ + + I +L+NN G+S I E E
Sbjct: 57 AADFSAGDDIYERIEKELEGL-----DIGILVNNVGISHSIPEYFLETPEDE-------- 103
Query: 169 GHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH-----------SNP- 216
++ I V ++ + M R + G V++ P
Sbjct: 104 ---------LQDIINVNVMATLKMTRLIL--------PGMVKRKKGAIVNISSFAGLIPT 146
Query: 217 ----AYCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
Y SK +F LY +Y +G+DV + P T +
Sbjct: 147 PLLATYSASKAFLDFFSRALYEEYKSQGIDVQSLLPYLVATKM 189
Score = 32.2 bits (74), Expect = 0.37
Identities = 12/39 (30%), Positives = 18/39 (46%)
Query: 309 AYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNL 347
Y SK +F LY +Y +G+DV + P T +
Sbjct: 151 TYSASKAFLDFFSRALYEEYKSQGIDVQSLLPYLVATKM 189
>gnl|CDD|236241 PRK08324, PRK08324, short chain dehydrogenase; Validated.
Length = 681
Score = 73.3 bits (181), Expect = 4e-14
Identities = 67/245 (27%), Positives = 106/245 (43%), Gaps = 33/245 (13%)
Query: 21 LYTTTIT--LSALVISRY--------FKSRSWS----KLKASPFYKPMEGKVCIITGANS 66
+Y I A + RY F WS KL+ P KP+ GKV ++TGA
Sbjct: 373 IYENAINVMRGAEAVGRYEPLSEQEAFDIEYWSLEQAKLQRMPKPKPLAGKVALVTGAAG 432
Query: 67 GIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL-MELNLASFDSIKNF 125
GIG TAK LA A VVL +EA E E+ L + ++ +++
Sbjct: 433 GIGKATAKRLAAEGACVVLADLD----EEAAEAAAAELGGPDRALGVACDVTDEAAVQAA 488
Query: 126 AKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHFLLTNLLIERIQK 183
+ + + ++++NAG+++ PI+E T+ E + F +N GHFL+ RI K
Sbjct: 489 FEEAALAFGGVDIVVSNAGIAISGPIEE--TSDEDWRRSFDVNATGHFLVAR-EAVRIMK 545
Query: 184 VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDV 243
+G S++ K V G + AY +K + +L L+ G+ V
Sbjct: 546 AQGLGGSIV---------FIASKNAVNPGPNFGAYGAAKAAELHLVRQLALELGPDGIRV 596
Query: 244 SVVCP 248
+ V P
Sbjct: 597 NGVNP 601
>gnl|CDD|181136 PRK07825, PRK07825, short chain dehydrogenase; Provisional.
Length = 273
Score = 71.5 bits (176), Expect = 4e-14
Identities = 66/222 (29%), Positives = 83/222 (37%), Gaps = 55/222 (24%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ GKV ITG GIG TA+ LA L A V +G +E +L G +V
Sbjct: 2 DLRGKVVAITGGARGIGLATARALAALGARVAIGDLDEALAKETAAEL------GLVVGG 55
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
L++ S F V I VL+NNAGV +P VG FL
Sbjct: 56 PLDVTDPASFAAFLDAVEADLGPIDVLVNNAGV-MP-------------------VGPFL 95
Query: 173 LTNL-LIERIQKV----VIVGSSLMDRGTIDFDNLNGEKGFVQKGH-SNPA--------- 217
+ RI V VI+GS L + +G +GH N A
Sbjct: 96 DEPDAVTRRILDVNVYGVILGSKLAAPRMV-------PRG---RGHVVNVASLAGKIPVP 145
Query: 218 ----YCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
YC SK F L+ GV VSVV P + T L
Sbjct: 146 GMATYCASKHAVVGFTDAARLELRGTGVHVSVVLPSFVNTEL 187
Score = 29.9 bits (68), Expect = 1.9
Identities = 14/38 (36%), Positives = 16/38 (42%)
Query: 310 YCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNL 347
YC SK F L+ GV V VV P + T L
Sbjct: 150 YCASKHAVVGFTDAARLELRGTGVHVSVVLPSFVNTEL 187
>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 = 71.1 bits (175), Expect = 4e-14
Identities = 39/140 (27%), Positives = 67/140 (47%), Gaps = 9/140 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV ITG +GIG AK A+L A+V + R + A E++ G+ ++
Sbjct: 1 LKGKVAFITGGGTGIGKAIAKAFAELGASVAIAGRKPEVLEAAAEEISSA-TGGRAHPIQ 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVGHF 171
++ ++++ +K++ KI +LINNA + P E L+ G++ I+ G F
Sbjct: 60 CDVRDPEAVEAAVDETLKEFGKIDILINNAAGNFLAPA-ESLSPN-GFKTVIDIDLNGTF 117
Query: 172 LLT----NLLIERIQKVVIV 187
T LIE I+
Sbjct: 118 NTTKAVGKRLIEAKHGGSIL 137
>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 = 71.0 bits (174), Expect = 5e-14
Identities = 50/195 (25%), Positives = 86/195 (44%), Gaps = 13/195 (6%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFD 120
ITG++ G+G A+ L VVL RS R +A K VL+ +L+S
Sbjct: 12 ITGSSDGLGLAAARTLLHQGHEVVLHARSQKRAADA----KAACPGAAGVLIG-DLSSLA 66
Query: 121 SIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLIER 180
+ A V + +I+NAG+ + T G +N + ++LT LI R
Sbjct: 67 ETRKLADQV-NAIGRFDAVIHNAGILSG-PNRKTPDTGIPAMVAVNVLAPYVLTA-LIRR 123
Query: 181 IQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKG 240
++++ + S + G D+++ + + +PAY +SKL A + ++ D
Sbjct: 124 PKRLIYLSSGMHRGGNASLDDIDWFN---RGENDSPAYSDSKLHVLTLAAAVARRWKD-- 178
Query: 241 VDVSVVCPGWCYTNL 255
V + V PGW T +
Sbjct: 179 VSSNAVHPGWVPTKM 193
>gnl|CDD|237218 PRK12825, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 249
Score = 70.7 bits (174), Expect = 6e-14
Identities = 26/95 (27%), Positives = 53/95 (55%), Gaps = 5/95 (5%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIV 110
+ G+V ++TGA G+G A LA+ A VV+ RS +EA E+L + V+ +
Sbjct: 3 SLMGRVALVTGAARGLGRAIALRLARAGADVVVHYRS---DEEAAEELVEAVEALGRRAQ 59
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
++ ++ +++ ++++ +I +L+NNAG+
Sbjct: 60 AVQADVTDKAALEAAVAAAVERFGRIDILVNNAGI 94
>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 = 68.6 bits (168), Expect = 3e-13
Identities = 59/211 (27%), Positives = 98/211 (46%), Gaps = 29/211 (13%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMELN 115
V +ITGA+SGIG TA A+ A VVL RS EAL +L +EV++ G+ + + +
Sbjct: 2 VVVITGASSGIGRATALAFAERGAKVVLAARS----AEALHELAREVRELGGEAIAVVAD 57
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
+A ++ A ++++ +I +NNAGV+V + + T E + F +N++GH T
Sbjct: 58 VADAAQVERAADTAVERFGRIDTWVNNAGVAVFGRFEDVTPEEFRRVFDVNYLGHVYGTL 117
Query: 176 LLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK--LMNYYF 228
+ +++ ++ VGS L R L AY SK + +
Sbjct: 118 AALPHLRRRGGGALINVGSLLGYRSAP----LQA------------AYSASKHAVRGFTE 161
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
L + + V++V P T F HA
Sbjct: 162 SLRAELAHDGAPISVTLVQPTAMNTPFFGHA 192
>gnl|CDD|235631 PRK05866, PRK05866, short chain dehydrogenase; Provisional.
Length = 293
Score = 68.6 bits (168), Expect = 5e-13
Identities = 38/136 (27%), Positives = 66/136 (48%), Gaps = 12/136 (8%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIV 110
+ GK ++TGA+SGIG A++ A+ ATVV + R ++ L+ + + G +
Sbjct: 37 DLTGKRILLTGASSGIGEAAAEQFARRGATVVA----VARREDLLDAVADRITRAGGDAM 92
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHV 168
+ +L+ D++ +V K+ + +LINNAG S+ P+ E L E +N+
Sbjct: 93 AVPCDLSDLDAVDALVADVEKRIGGVDILINNAGRSIRRPLAESLDRWHDVERTMVLNYY 152
Query: 169 GHFLLTNLL----IER 180
L L +ER
Sbjct: 153 APLRLIRGLAPGMLER 168
>gnl|CDD|180744 PRK06914, PRK06914, short chain dehydrogenase; Provisional.
Length = 280
Score = 68.1 bits (167), Expect = 5e-13
Identities = 60/213 (28%), Positives = 98/213 (46%), Gaps = 34/213 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQ-IVLM 112
M K+ I+TGA+SG G T ELAK V+ R+ + QE L ++ Q I +
Sbjct: 1 MNKKIAIVTGASSGFGLLTTLELAKKGYLVIATMRNPEK-QENLLSQATQLNLQQNIKVQ 59
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP--IKEKLTTKEGYEVHFGINHVGH 170
+L++ +SI NF V+K+ +I +L+NNAG + ++E E Y F N G
Sbjct: 60 QLDVTDQNSIHNFQL-VLKEIGRIDLLVNNAGYANGGFVEE--IPVEEYRKQFETNVFGA 116
Query: 171 FLLTNLLI-----ERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPA---YCNSK 222
+T ++ ++ K++ + S ++G GF P Y +SK
Sbjct: 117 ISVTQAVLPYMRKQKSGKIINISS------------ISGRVGF-------PGLSPYVSSK 157
Query: 223 LMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
F L L+ G+DV+++ PG TN+
Sbjct: 158 YALEGFSESLRLELKPFGIDVALIEPGSYNTNI 190
>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 = 67.8 bits (166), Expect = 6e-13
Identities = 53/205 (25%), Positives = 97/205 (47%), Gaps = 29/205 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GKV ++TGA+SGIG A LA A VV+ RS ++A E++ +E++ G+ +
Sbjct: 1 LKGKVALVTGASSGIGKAIAIRLATAGANVVVNYRS---KEDAAEEVVEEIKAVGGKAIA 57
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVG 169
++ +++ + + ++ +K++ + +L+NNAG+ E T E + +N G
Sbjct: 58 VQADVSKEEDVVALFQSAIKEFGTLDILVNNAGLQGDASSHE--MTLEDWNKVIDVNLTG 115
Query: 170 HFL-----LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLM 224
FL + +I+ +I SS+ ++ GH N Y SK
Sbjct: 116 QFLCAREAIKRFRKSKIKGKIINMSSVHEK-------------IPWPGHVN--YAASKGG 160
Query: 225 NYYFGAELYLKYADKGVDVSVVCPG 249
L +YA KG+ V+ + PG
Sbjct: 161 VKMMTKTLAQEYAPKGIRVNAIAPG 185
>gnl|CDD|180984 PRK07454, PRK07454, short chain dehydrogenase; Provisional.
Length = 241
Score = 67.3 bits (165), Expect = 7e-13
Identities = 31/88 (35%), Positives = 49/88 (55%), Gaps = 6/88 (6%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMELNLA 117
+ITGA+SGIG TA AK + L RS Q+ALE L E++ + ++L+
Sbjct: 10 LITGASSGIGKATALAFAKAGWDLALVARS----QDALEALAAELRSTGVKAAAYSIDLS 65
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+ ++I +++Q+ VLINNAG+
Sbjct: 66 NPEAIAPGIAELLEQFGCPDVLINNAGM 93
>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 = 67.6 bits (165), Expect = 7e-13
Identities = 54/219 (24%), Positives = 99/219 (45%), Gaps = 30/219 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GKV ++TGA+SGIG TA+ LA A V + R + LE L E++ G+ ++
Sbjct: 1 LQGKVALVTGASSGIGEATARALAAEGAAVAIAARR----VDRLEALADELEAEGGKALV 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTT--KEGYEVHF-GIN 166
+EL++ + + ++ ++ +L+NNAG+ + P+++ TT + + G+
Sbjct: 57 LELDVTDEQQVDAAVERTVEALGRLDILVNNAGIMLLGPVEDADTTDWTRMIDTNLLGLM 116
Query: 167 HVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
+ H L + L+ +V + SS+ R ++ Y +K
Sbjct: 117 YTTHAALPHHLLRNKGTIVNI-SSVAGRVA---------------VRNSAVYNATKFGVN 160
Query: 227 YFGAELYLKYADKGVDVSVVCPGWCYTNL---FRHADIK 262
F L + ++GV V V+ PG T L H K
Sbjct: 161 AFSEGLRQEVTERGVRVVVIEPGTVDTELRDHITHTITK 199
>gnl|CDD|183833 PRK12939, PRK12939, short chain dehydrogenase; Provisional.
Length = 250
Score = 67.3 bits (165), Expect = 7e-13
Identities = 25/92 (27%), Positives = 41/92 (44%), Gaps = 2/92 (2%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GK ++TGA G+G A+ LA+ ATV +E L+ G+ +
Sbjct: 5 LAGKRALVTGAARGLGAAFAEALAEAGATVAFNDGLAAEARELAAALEA--AGGRAHAIA 62
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+LA S++ F + L+NNAG+
Sbjct: 63 ADLADPASVQRFFDAAAAALGGLDGLVNNAGI 94
>gnl|CDD|180723 PRK06841, PRK06841, short chain dehydrogenase; Provisional.
Length = 255
Score = 67.4 bits (165), Expect = 8e-13
Identities = 53/208 (25%), Positives = 93/208 (44%), Gaps = 18/208 (8%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ GKV ++TG SGIG+ A+ A A V L RS E + ++ ++ G +
Sbjct: 12 DLSGKVAVVTGGASGIGHAIAELFAAKGARVALLDRS-----EDVAEVAAQLLGGNAKGL 66
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
+++ S++ V+ + +I +L+N+AGV++ + ++E ++ IN G FL
Sbjct: 67 VCDVSDSQSVEAAVAAVISAFGRIDILVNSAGVALLAPAEDVSEEDWDKTIDINLKGSFL 126
Query: 173 LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQ-KGHSNPAYCNSKLMNYYFGAE 231
+ VG ++ G NL + G V + H AYC SK
Sbjct: 127 MAQ----------AVGRHMIAAGGGKIVNLASQAGVVALERHV--AYCASKAGVVGMTKV 174
Query: 232 LYLKYADKGVDVSVVCPGWCYTNLFRHA 259
L L++ G+ V+ + P T L + A
Sbjct: 175 LALEWGPYGITVNAISPTVVLTELGKKA 202
>gnl|CDD|235816 PRK06500, PRK06500, short chain dehydrogenase; Provisional.
Length = 249
Score = 67.3 bits (165), Expect = 9e-13
Identities = 50/212 (23%), Positives = 90/212 (42%), Gaps = 36/212 (16%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GK +ITG SGIG ETA++ A V + R +LE + E+ + +V+
Sbjct: 4 LQGKTALITGGTSGIGLETARQFLAEGARVAITGRD----PASLEAARAELGESALVIRA 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVG-H 170
+ + K A+ + + + ++ + NAGV+ P+++ + ++ F N G +
Sbjct: 60 -DAGDVAAQKALAQALAEAFGRLDAVFINAGVAKFAPLED--WDEAMFDRSFNTNVKGPY 116
Query: 171 FLLTNLL--IERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL----M 224
FL+ LL + +V+ GS +N G + Y SK +
Sbjct: 117 FLIQALLPLLANPASIVLNGS------------INAHIGMPN----SSVYAASKAALLSL 160
Query: 225 NYYFGAELYLKYADKGVDVSVVCPGWCYTNLF 256
EL +G+ V+ V PG T L+
Sbjct: 161 AKTLSGEL----LPRGIRVNAVSPGPVQTPLY 188
>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 = 67.0 bits (164), Expect = 1e-12
Identities = 55/196 (28%), Positives = 92/196 (46%), Gaps = 19/196 (9%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL-MEL 114
GKV ++TG SGIG AK LA A VV+ E EK+ + Q G L ++
Sbjct: 1 GKVALVTGGASGIGLAIAKRLAAEGAAVVV----ADIDPEIAEKVAEAAQGGPRALGVQC 56
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHFL 172
++ S +++ + + ++ + ++++NAG+ S PI E T+ E + IN GHFL
Sbjct: 57 DVTSEAQVQSAFEQAVLEFGGLDIVVSNAGIATSSPIAE--TSLEDWNRSMDINLTGHFL 114
Query: 173 LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAEL 232
++ RI K +G +++ N K V G + AY +K + L
Sbjct: 115 VSREAF-RIMKSQGIGGNIV---------FNASKNAVAPGPNAAAYSAAKAAEAHLARCL 164
Query: 233 YLKYADKGVDVSVVCP 248
L+ + G+ V+ V P
Sbjct: 165 ALEGGEDGIRVNTVNP 180
>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 = 66.5 bits (163), Expect = 1e-12
Identities = 54/203 (26%), Positives = 94/203 (46%), Gaps = 23/203 (11%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD---GQIVLME 113
K +ITGA+SGIG TA+ AK A ++L R E L++L E+ +++ ++
Sbjct: 1 KTVLITGASSGIGEATARRFAKAGAKLILTGRR----AERLQELADELGAKFPVKVLPLQ 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV---PIKEKLTTKEGYEVHFGINHVGH 170
L+++ +SI+ +N+ +++ I +L+NNAG+++ P +E E +E N G
Sbjct: 57 LDVSDRESIEAALENLPEEFRDIDILVNNAGLALGLDPAQE--ADLEDWETMIDTNVKGL 114
Query: 171 FLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
+T L++ + ++G I NL G N YC +K F
Sbjct: 115 LNVTRLILPIMIAR--------NQGHI--INLGSIAGRYPYAGGN-VYCATKAAVRQFSL 163
Query: 231 ELYLKYADKGVDVSVVCPGWCYT 253
L G+ V+ + PG T
Sbjct: 164 NLRKDLIGTGIRVTNIEPGLVET 186
>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 = 66.5 bits (163), Expect = 2e-12
Identities = 44/211 (20%), Positives = 83/211 (39%), Gaps = 45/211 (21%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL- 114
GKV ++T A+SGIG A+ LA+ A V + R+ +E LE+ E++ G ++ +
Sbjct: 1 GKVALVTAASSGIGLAIARALAREGARVAICARN----RENLERAASELRAGGAGVLAVV 56
Query: 115 -NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTK-----EGYEVHFGINHV 168
+L + I + + ++ +L+NNAG P E +++ +
Sbjct: 57 ADLTDPEDIDRLVEKAGDAFGRVDILVNNAG-GPPPGPFAELTDEDWLEAFDLKL----L 111
Query: 169 GHFLLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLN----GEKGFVQKGHSNPAYC 219
+ ++ +++ +V + S + + N G G V K S
Sbjct: 112 SVIRIVRAVLPGMKERGWGRIVNISSLTVKEPEPNLVLSNVARAGLIGLV-KTLSR---- 166
Query: 220 NSKLMNYYFGAELYLKYADKGVDVSVVCPGW 250
+ A GV V+ V PG+
Sbjct: 167 ---------------ELAPDGVTVNSVLPGY 182
>gnl|CDD|168574 PRK06484, PRK06484, short chain dehydrogenase; Validated.
Length = 520
Score = 67.2 bits (164), Expect = 3e-12
Identities = 53/210 (25%), Positives = 92/210 (43%), Gaps = 31/210 (14%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
+ +V ++TGA GIG + A+ VV+ R++ R +E + L + + +
Sbjct: 4 QSRVVLVTGAAGGIGRAACQRFARAGDQVVVADRNVERARERADSLGPDH-----HALAM 58
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL--TTKEGYEVHFGINHVGHFL 172
+++ I+ + + +++ +I VL+NNAGV+ P TT E + IN G +L
Sbjct: 59 DVSDEAQIREGFEQLHREFGRIDVLVNNAGVTDPTMTATLDTTLEEFARLQAINLTGAYL 118
Query: 173 LT----NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---AYCNSKLMN 225
+ L+IE+ IV N+ G V + P AY SK
Sbjct: 119 VAREALRLMIEQGHGAAIV-------------NVASGAGLV----ALPKRTAYSASKAAV 161
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
L ++A KG+ V+ V PG+ T +
Sbjct: 162 ISLTRSLACEWAAKGIRVNAVLPGYVRTQM 191
Score = 59.9 bits (145), Expect = 9e-10
Identities = 42/203 (20%), Positives = 83/203 (40%), Gaps = 27/203 (13%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
+V ITG GIG A A +++ + R E +KL E + + ++ +
Sbjct: 269 PRVVAITGGARGIGRAVADRFAAAGDRLLI----IDRDAEGAKKL-AEALGDEHLSVQAD 323
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL-TTKEGYEVHFGINHVGHFLLT 174
+ ++++ + ++ ++ VL+NNAG++ K L + E + + +N G F
Sbjct: 324 ITDEAAVESAFAQIQARWGRLDVLVNNAGIAEVFKPSLEQSAEDFTRVYDVNLSGAFACA 383
Query: 175 NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK----LMNYYFGA 230
+ + G +++ G+I + AYC SK +++
Sbjct: 384 RAAARLMSQ----GGVIVNLGSI-----ASLLALPPRN----AYCASKAAVTMLSRSLAC 430
Query: 231 ELYLKYADKGVDVSVVCPGWCYT 253
E A G+ V+ V PG+ T
Sbjct: 431 EW----APAGIRVNTVAPGYIET 449
>gnl|CDD|235990 PRK07326, PRK07326, short chain dehydrogenase; Provisional.
Length = 237
Score = 65.0 bits (159), Expect = 4e-12
Identities = 49/202 (24%), Positives = 81/202 (40%), Gaps = 27/202 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV +ITG + GIG+ A+ L V + R +EA +L G ++ +
Sbjct: 4 LKGKVALITGGSKGIGFAIAEALLAEGYKVAITARDQKELEEAAAELNN---KGNVLGLA 60
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
++ ++ ++ + + VLI NAGV P++E LT +E V N G F
Sbjct: 61 ADVRDEADVQRAVDAIVAAFGGLDVLIANAGVGHFAPVEE-LTPEEWRLV-IDTNLTGAF 118
Query: 172 LLTNLLIERIQK----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
+ +++ ++ + S L G F G AY SK
Sbjct: 119 YTIKAAVPALKRGGGYIINISS------------LAG-TNFFAGG---AAYNASKFGLVG 162
Query: 228 FGAELYLKYADKGVDVSVVCPG 249
F L G+ VS + PG
Sbjct: 163 FSEAAMLDLRQYGIKVSTIMPG 184
>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 = 65.2 bits (159), Expect = 4e-12
Identities = 45/200 (22%), Positives = 87/200 (43%), Gaps = 18/200 (9%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD---GQIVLM 112
G+V ++TGA+ GIG A+ L + V+GC R + +E L E Q +
Sbjct: 6 GRVALVTGASVGIGAAVARALVQ-HGMKVVGC---ARRVDKIEALAAECQSAGYPTLFPY 61
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
+ +L++ + I + + Q+ + V INNAG++ P EG++ F +N + +
Sbjct: 62 QCDLSNEEQILSMFSAIRTQHQGVDVCINNAGLARPEPLLSGKTEGWKEMFDVNVLALSI 121
Query: 173 LTNLLIERIQKVVIVGSSLMDRG-TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF--G 229
T + +++ + D G I+ ++++G + V Y +K G
Sbjct: 122 CTREAYQSMKERNV------DDGHIININSMSGHR--VPPVSVFHFYAATKHAVTALTEG 173
Query: 230 AELYLKYADKGVDVSVVCPG 249
L+ A + + + PG
Sbjct: 174 LRQELREAKTHIRATSISPG 193
>gnl|CDD|181585 PRK08936, PRK08936, glucose-1-dehydrogenase; Provisional.
Length = 261
Score = 65.1 bits (159), Expect = 5e-12
Identities = 34/124 (27%), Positives = 62/124 (50%), Gaps = 5/124 (4%)
Query: 51 YKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQ 108
Y +EGKV +ITG ++G+G A K KA VV+ RS +E + +E++ G+
Sbjct: 2 YSDLEGKVVVITGGSTGLGRAMAVRFGKEKAKVVINYRS---DEEEANDVAEEIKKAGGE 58
Query: 109 IVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHV 168
+ ++ ++ + N + +K++ + V+INNAG+ + + E + N
Sbjct: 59 AIAVKGDVTVESDVVNLIQTAVKEFGTLDVMINNAGIENAVPSHEMSLEDWNKVINTNLT 118
Query: 169 GHFL 172
G FL
Sbjct: 119 GAFL 122
>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 = 65.2 bits (159), Expect = 5e-12
Identities = 53/220 (24%), Positives = 94/220 (42%), Gaps = 35/220 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++ KV +ITG +G A+ LA+ A V + R QE +K+ KE+ G+ +
Sbjct: 3 LKNKVAVITGGTGVLGGAMARALAQAGAKVAA----LGRNQEKGDKVAKEITALGGRAIA 58
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP----IKEKLT----------TKE 157
+ ++ S++ + ++ Q+ + +LIN AG + P E +E
Sbjct: 59 LAADVLDRASLERAREEIVAQFGTVDILINGAGGNHPDATTDPEHYEPETEQNFFDLDEE 118
Query: 158 GYEVHFGINHVGHFLLTNLLIERIQKVVIVGSSLM--DRGTIDFDNLNGEKGFVQKGHSN 215
G+E F +N G FL + + G ++ G+I N++ F
Sbjct: 119 GWEFVFDLNLNGSFLPSQ----------VFGKDMLEQKGGSI--INISSMNAFSPLTKV- 165
Query: 216 PAYCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
PAY +K F L +++A GV V+ + PG+ T
Sbjct: 166 PAYSAAKAAVSNFTQWLAVEFATTGVRVNAIAPGFFVTPQ 205
>gnl|CDD|236372 PRK09072, PRK09072, short chain dehydrogenase; Provisional.
Length = 263
Score = 65.0 bits (159), Expect = 7e-12
Identities = 56/200 (28%), Positives = 84/200 (42%), Gaps = 27/200 (13%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVLME 113
+ K ++TGA+ GIG A+ LA A ++L R+ E LE L + G+ +
Sbjct: 4 KDKRVLLTGASGGIGQALAEALAAAGARLLLVGRNA----EKLEALAARLPYPGRHRWVV 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
+L S + ++ I+VLINNAGV+ + E E +N L
Sbjct: 60 ADLTSEAGREAVLA-RAREMGGINVLINNAGVNHFALLEDQDPEAIERLLALNLTAPMQL 118
Query: 174 TNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
T L+ ++ VV VGS+ G+I G G+ +YC SK F
Sbjct: 119 TRALLPLLRAQPSAMVVNVGSTF---GSI------GYPGYA-------SYCASKFALRGF 162
Query: 229 GAELYLKYADKGVDVSVVCP 248
L + AD GV V + P
Sbjct: 163 SEALRRELADTGVRVLYLAP 182
>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 = 64.3 bits (157), Expect = 9e-12
Identities = 49/197 (24%), Positives = 83/197 (42%), Gaps = 17/197 (8%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVLME 113
KV IITGA GIG A+ LA +VL + + +EA + +E+ V +
Sbjct: 2 SKVAIITGAAQGIGRAIAERLAADGFNIVL---ADLNLEEAAKSTIQEISEAGYNAVAVG 58
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLT-TKEGYEVHFGINHVGHFL 172
++ D ++ ++++ V++NNAG+ PI LT T+E + + +N G
Sbjct: 59 ADVTDKDDVEALIDQAVEKFGSFDVMVNNAGI-APITPLLTITEEDLKKVYAVNVFGVLF 117
Query: 173 LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAEL 232
+ +K+ G I+ ++ G +GF G Y SK
Sbjct: 118 GIQAAARQFKKLGHGGK------IINASSIAGVQGFPNLGA----YSASKFAVRGLTQTA 167
Query: 233 YLKYADKGVDVSVVCPG 249
+ A KG+ V+ PG
Sbjct: 168 AQELAPKGITVNAYAPG 184
>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 = 64.0 bits (156), Expect = 1e-11
Identities = 39/144 (27%), Positives = 69/144 (47%), Gaps = 12/144 (8%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVL- 111
+EGK ++TG GIGY +ELA L A V R+ Q+ L++ E ++ G V
Sbjct: 4 LEGKTALVTGGTKGIGYAIVEELAGLGAEVYTCARN----QKELDECLTEWREKGFKVEG 59
Query: 112 MELNLASFDSIKNFAKNVMKQY-PKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGH 170
+++S + V + K+++L+NNAG ++ + K T+E Y + N
Sbjct: 60 SVCDVSSRSERQELMDTVASHFGGKLNILVNNAGTNIRKEAKDYTEEDYSLIMSTNFEAA 119
Query: 171 FLLTNL---LIERIQK--VVIVGS 189
+ L+ L L++ +V + S
Sbjct: 120 YHLSRLAHPLLKASGNGNIVFISS 143
>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 = 63.9 bits (156), Expect = 1e-11
Identities = 55/206 (26%), Positives = 81/206 (39%), Gaps = 30/206 (14%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GKV I+TG G+G A+ L A VVL GQ A +L + L+
Sbjct: 5 GKVAIVTGGARGLGLAHARLLVAEGAKVVLSDILDEEGQAAAAELGDAAR-----FFHLD 59
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
+ D + + ++ VL+NNAG+ + TT E + IN G FL T
Sbjct: 60 VTDEDGWTAVVDTAREAFGRLDVLVNNAGILTGGTVETTTLEEWRRLLDINLTGVFLGTR 119
Query: 176 LLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSN-PAYCNSKLMNYYFG----- 229
+I +++ G+I N++ +G V G AY SK
Sbjct: 120 AVIPPMKEA--------GGGSI--INMSSIEGLV--GDPALAAYNASK-----GAVRGLT 162
Query: 230 --AELYLKYADKGVDVSVVCPGWCYT 253
A L G+ V+ V PG+ YT
Sbjct: 163 KSAALECATQGYGIRVNSVHPGYIYT 188
>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 = 63.7 bits (155), Expect = 1e-11
Identities = 47/210 (22%), Positives = 94/210 (44%), Gaps = 17/210 (8%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GK+ ++TG + GIG A+ + A V++ R +A E+L G+ + +
Sbjct: 4 VAGKIVLVTGGSRGIGRMIAQGFLEAGARVIISARKAEACADAAEELS---AYGECIAIP 60
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVGHF 171
+L+S + I+ V ++ ++ VL+NNAG + P++ + G++ IN F
Sbjct: 61 ADLSSEEGIEALVARVAERSDRLDVLVNNAGATWGAPLEA--FPESGWDKVMDINVKSVF 118
Query: 172 LLTNLLIERIQKVVIVG--SSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
LT L+ ++ + +++ G+I G V G N +Y SK +
Sbjct: 119 FLTQALLPLLRAAATAENPARVINIGSIA--------GIVVSGLENYSYGASKAAVHQLT 170
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
+L + A + + V+ + PG + +
Sbjct: 171 RKLAKELAGEHITVNAIAPGRFPSKMTAFL 200
>gnl|CDD|180761 PRK06935, PRK06935, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 258
Score = 64.0 bits (156), Expect = 1e-11
Identities = 50/210 (23%), Positives = 91/210 (43%), Gaps = 32/210 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQ-IVL 111
++GKV I+TG N+G+G A LAK A +++ ++ ++ ++ G+ +
Sbjct: 13 LDGKVAIVTGGNTGLGQGYAVALAKAGADIIITTHG-----TNWDETRRLIEKEGRKVTF 67
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK-EKLT--TKEGYEVHFGINHV 168
++++L +S + K ++++ KI +L+NNAG I+ L E + IN
Sbjct: 68 VQVDLTKPESAEKVVKEALEEFGKIDILVNNAGT---IRRAPLLEYKDEDWNAVMDINLN 124
Query: 169 GHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL----M 224
+ L+ V + +G+ N+ F Q G PAY SK +
Sbjct: 125 SVYHLSQA----------VAKVMAKQGSGKIINIASMLSF-QGGKFVPAYTASKHGVAGL 173
Query: 225 NYYFGAELYLKYADKGVDVSVVCPGWCYTN 254
F EL A + V+ + PG+ T
Sbjct: 174 TKAFANEL----AAYNIQVNAIAPGYIKTA 199
>gnl|CDD|180448 PRK06182, PRK06182, short chain dehydrogenase; Validated.
Length = 273
Score = 63.8 bits (156), Expect = 1e-11
Identities = 35/105 (33%), Positives = 51/105 (48%), Gaps = 15/105 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
M+ KV ++TGA+SGIG TA+ LA TV R + +K++ G L
Sbjct: 1 MQKKVALVTGASSGIGKATARRLAAQGYTVYGAARRV-------DKMEDLASLGVHPL-S 52
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS-------VPIKE 151
L++ SIK ++ + +I VL+NNAG VPI E
Sbjct: 53 LDVTDEASIKAAVDTIIAEEGRIDVLVNNAGYGSYGAIEDVPIDE 97
>gnl|CDD|181295 PRK08213, PRK08213, gluconate 5-dehydrogenase; Provisional.
Length = 259
Score = 63.8 bits (156), Expect = 2e-11
Identities = 52/211 (24%), Positives = 97/211 (45%), Gaps = 36/211 (17%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GK ++TG + G+G + A+ L + A VVL R +EA L+ D + +
Sbjct: 10 LSGKTALVTGGSRGLGLQIAEALGEAGARVVLSARKAEELEEAAAHLEALGIDA--LWIA 67
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS--VPIKEKLTTKEGYEVHFGINHVGHF 171
++A I+ A+ ++++ + +L+NNAG + P ++ E ++ +N G F
Sbjct: 68 ADVADEADIERLAEETLERFGHVDILVNNAGATWGAPAEDHPV--EAWDKVMNLNVRGLF 125
Query: 172 LLTNLLIERIQKVVIVGSSLMDRGT---IDFDNLNGEKGFVQKGHSNP-------AYCNS 221
LL+ + + K S++ RG I+ ++ G G NP AY S
Sbjct: 126 LLS----QAVAKR-----SMIPRGYGRIINVASVAGLGG-------NPPEVMDTIAYNTS 169
Query: 222 K--LMNYYFGAELYLKYADKGVDVSVVCPGW 250
K ++N F L ++ G+ V+ + PG+
Sbjct: 170 KGAVIN--FTRALAAEWGPHGIRVNAIAPGF 198
>gnl|CDD|187609 cd05351, XR_like_SDR_c, xylulose reductase-like, classical (c)
SDRs. Members of this subgroup include proteins
identified as L-xylulose reductase (XR) and carbonyl
reductase; they are members of the SDR family. XR,
catalyzes the NADP-dependent reduction of L-xyulose and
other sugars. Tetrameric mouse carbonyl reductase is
involved in the metabolism of biogenic and xenobiotic
carbonyl compounds. This subgroup also includes
tetrameric chicken liver D-erythrulose reductase, which
catalyzes the reduction of D-erythrulose to D-threitol.
SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRS are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes have a 3-glycine N-terminal NAD(P)(H)-binding
pattern (typically, TGxxxGxG in classical SDRs and
TGxxGxxG in extended SDRs), while substrate binding is
in the C-terminal region. A critical catalytic Tyr
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering), is often found in a
conserved YXXXK pattern. In addition to the Tyr and Lys,
there is often an upstream Ser (Ser-138, 15-PGDH
numbering) and/or an Asn (Asn-107, 15-PGDH numbering) or
additional Ser, contributing to the active site.
Substrates for these enzymes include sugars, steroids,
alcohols, and aromatic compounds. The standard reaction
mechanism is a proton relay involving the conserved Tyr
and Lys, as well as Asn (or Ser).
Length = 244
Score = 63.3 bits (154), Expect = 2e-11
Identities = 42/141 (29%), Positives = 68/141 (48%), Gaps = 18/141 (12%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GK ++TGA GIG T K LAK A VV ++ R Q L+ L +E I + ++
Sbjct: 7 GKRALVTGAGKGIGRATVKALAKAGARVV----AVSRTQADLDSLVRE--CPGIEPVCVD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHFLL 173
L+ +D+ + +V + +L+NNA V++ P E TKE ++ F +N +
Sbjct: 61 LSDWDATEEALGSV----GPVDLLVNNAAVAILQPFLE--VTKEAFDRSFDVNVRAVIHV 114
Query: 174 TNL----LIERIQKVVIVGSS 190
+ + +I R IV S
Sbjct: 115 SQIVARGMIARGVPGSIVNVS 135
>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 = 62.8 bits (153), Expect = 2e-11
Identities = 51/219 (23%), Positives = 74/219 (33%), Gaps = 42/219 (19%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKAT-VVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
++ K ++TGAN GIG + L A V R + L + D +V +
Sbjct: 1 IKDKTVLVTGANRGIGKAFVESLLAHGAKKVYAAVRD----PGSAAHLVAKYGDK-VVPL 55
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP---IKEKLTTKEGYEVHFGINHVG 169
L++ +SIK A Q + V+INNAGV P ++E E + +N G
Sbjct: 56 RLDVTDPESIKAAA----AQAKDVDVVINNAGVLKPATLLEEGAL--EALKQEMDVNVFG 109
Query: 170 HFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQ-------KGHSN-PAYCNS 221
L ++ NG V K Y S
Sbjct: 110 LLRLAQAFAPVLKA-------------------NGGGAIVNLNSVASLKNFPAMGTYSAS 150
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHAD 260
K Y L + A +G V V PG T + A
Sbjct: 151 KSAAYSLTQGLRAELAAQGTLVLSVHPGPIDTRMAAGAG 189
>gnl|CDD|235725 PRK06179, PRK06179, short chain dehydrogenase; Provisional.
Length = 270
Score = 63.4 bits (155), Expect = 2e-11
Identities = 28/94 (29%), Positives = 46/94 (48%), Gaps = 10/94 (10%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
KV ++TGA+SGIG TA++LA+ V R + + L+E
Sbjct: 2 SNSKVALVTGASSGIGRATAEKLARAGYRVFGTSR----------NPARAAPIPGVELLE 51
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
L++ S++ V+ + +I VL+NNAGV +
Sbjct: 52 LDVTDDASVQAAVDEVIARAGRIDVLVNNAGVGL 85
>gnl|CDD|180458 PRK06194, PRK06194, hypothetical protein; Provisional.
Length = 287
Score = 62.7 bits (153), Expect = 4e-11
Identities = 27/93 (29%), Positives = 50/93 (53%), Gaps = 6/93 (6%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLM 112
GKV +ITGA SG G A+ A L +VL Q+AL++ E++ +++ +
Sbjct: 5 AGKVAVITGAASGFGLAFARIGAALGMKLVLADVQ----QDALDRAVAELRAQGAEVLGV 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+++ ++ A ++++ +H+L NNAGV
Sbjct: 61 RTDVSDAAQVEALADAALERFGAVHLLFNNAGV 93
>gnl|CDD|181113 PRK07775, PRK07775, short chain dehydrogenase; Provisional.
Length = 274
Score = 62.5 bits (152), Expect = 4e-11
Identities = 53/195 (27%), Positives = 89/195 (45%), Gaps = 23/195 (11%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
++ GA+SGIG TA ELA V LG R + + +E ++K++ + G+ V L++
Sbjct: 14 LVAGASSGIGAATAIELAAAGFPVALGARRVEKCEELVDKIRAD--GGEAVAFPLDVTDP 71
Query: 120 DSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYE----VHF-GINHVGHFLLT 174
DS+K+F + +I VL++ AG + K + E +E +H G N + +L
Sbjct: 72 DSVKSFVAQAEEALGEIEVLVSGAGDTYFGKLHEISTEQFESQVQIHLVGANRLATAVLP 131
Query: 175 NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYL 234
++ R ++ VGS + R Q+ H AY +K L +
Sbjct: 132 GMIERRRGDLIFVGSDVALR---------------QRPHMG-AYGAAKAGLEAMVTNLQM 175
Query: 235 KYADKGVDVSVVCPG 249
+ GV S+V PG
Sbjct: 176 ELEGTGVRASIVHPG 190
>gnl|CDD|183773 PRK12824, PRK12824, acetoacetyl-CoA reductase; Provisional.
Length = 245
Score = 62.1 bits (151), Expect = 5e-11
Identities = 43/201 (21%), Positives = 80/201 (39%), Gaps = 20/201 (9%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALE-KLKKEVQDGQIVLMELN 115
K+ ++TGA GIG A+EL V+ S A + + + Q+ L EL+
Sbjct: 3 KIALVTGAKRGIGSAIARELLNDGYRVIATYFS--GNDCAKDWFEEYGFTEDQVRLKELD 60
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
+ + + ++ + +L+NNAG++ K + + + N F +T
Sbjct: 61 VTDTEECAEALAEIEEEEGPVDILVNNAGITRDSVFKRMSHQEWNDVINTNLNSVFNVTQ 120
Query: 176 LLIERIQKVVIVGSSLMDRG---TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAEL 232
L ++ ++G I+ ++NG KG Y +K F L
Sbjct: 121 PLFA----------AMCEQGYGRIINISSVNGLKGQF----GQTNYSAAKAGMIGFTKAL 166
Query: 233 YLKYADKGVDVSVVCPGWCYT 253
+ A G+ V+ + PG+ T
Sbjct: 167 ASEGARYGITVNCIAPGYIAT 187
>gnl|CDD|181491 PRK08589, PRK08589, short chain dehydrogenase; Validated.
Length = 272
Score = 62.5 bits (152), Expect = 5e-11
Identities = 36/139 (25%), Positives = 67/139 (48%), Gaps = 26/139 (18%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQI 109
K +E KV +ITGA++GIG +A LA+ A V+ + EA+ + +++ G+
Sbjct: 2 KRLENKVAVITGASTGIGQASAIALAQEGAYVLAVDIA-----EAVSETVDKIKSNGGKA 56
Query: 110 VLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVH------- 162
++++ +K+FA + +Q+ ++ VL NNAGV +H
Sbjct: 57 KAYHVDISDEQQVKDFASEIKEQFGRVDVLFNNAGVD---------NAAGRIHEYPVDVF 107
Query: 163 ---FGINHVGHFLLTNLLI 178
++ G FL+T +L+
Sbjct: 108 DKIMAVDMRGTFLMTKMLL 126
>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 = 61.0 bits (148), Expect = 9e-11
Identities = 57/218 (26%), Positives = 92/218 (42%), Gaps = 24/218 (11%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMELN 115
V I+TG +GIG A LAK A+VV+ + ++ + A E + +Q GQ + +E N
Sbjct: 1 VAIVTGGAAGIGKAIAGTLAKAGASVVI---ADLKSEGA-EAVAAAIQQAGGQAIGLECN 56
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL-TTKEGYEVHFGINHVGHFLLT 174
+ S ++ K + Q+ I +L+NNAG P + T+E +E F +N F L+
Sbjct: 57 VTSEQDLEAVVKATVSQFGGITILVNNAGGGGPKPFDMPMTEEDFEWAFKLNLFSAFRLS 116
Query: 175 NLLIERIQKV---VIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
L +QK I+ S M + AY +SK +
Sbjct: 117 QLCAPHMQKAGGGAILNISSMSSENKNVRIA--------------AYGSSKAAVNHMTRN 162
Query: 232 LYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKVMI 269
L KG+ V+ V PG T+ ++ M+
Sbjct: 163 LAFDLGPKGIRVNAVAPGAVKTDALASVLTPEIERAML 200
>gnl|CDD|181077 PRK07677, PRK07677, short chain dehydrogenase; Provisional.
Length = 252
Score = 61.2 bits (149), Expect = 9e-11
Identities = 29/90 (32%), Positives = 55/90 (61%), Gaps = 6/90 (6%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ--DGQIVLME 113
KV IITG +SG+G AK A+ A VV+ R+ +E LE+ K E++ GQ++ ++
Sbjct: 1 EKVVIITGGSSGMGKAMAKRFAEEGANVVITGRT----KEKLEEAKLEIEQFPGQVLTVQ 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNA 143
+++ + + ++ + + +++ +I LINNA
Sbjct: 57 MDVRNPEDVQKMVEQIDEKFGRIDALINNA 86
>gnl|CDD|235924 PRK07063, PRK07063, short chain dehydrogenase; Provisional.
Length = 260
Score = 61.2 bits (149), Expect = 9e-11
Identities = 24/94 (25%), Positives = 46/94 (48%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GKV ++TGA GIG A+ A+ A V L + A + ++V +++ +
Sbjct: 5 LAGKVALVTGAAQGIGAAIARAFAREGAAVALADLDAALAERAAAAIARDVAGARVLAVP 64
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
++ S+ + + + VL+NNAG++V
Sbjct: 65 ADVTDAASVAAAVAAAEEAFGPLDVLVNNAGINV 98
>gnl|CDD|180993 PRK07478, PRK07478, short chain dehydrogenase; Provisional.
Length = 254
Score = 61.1 bits (149), Expect = 1e-10
Identities = 31/94 (32%), Positives = 49/94 (52%), Gaps = 6/94 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVL 111
+ GKV IITGA+SGIG AK A+ A VV+G R Q L++L E+ + G+ V
Sbjct: 4 LNGKVAIITGASSGIGRAAAKLFAREGAKVVVGA----RRQAELDQLVAEIRAEGGEAVA 59
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+ ++ K ++++ + + NNAG
Sbjct: 60 LAGDVRDEAYAKALVALAVERFGGLDIAFNNAGT 93
>gnl|CDD|183832 PRK12935, PRK12935, acetoacetyl-CoA reductase; Provisional.
Length = 247
Score = 60.8 bits (147), Expect = 1e-10
Identities = 50/205 (24%), Positives = 88/205 (42%), Gaps = 18/205 (8%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
+ GKV I+TG GIG LA+ A VV+ S +EA E L E+ +
Sbjct: 4 LNGKVAIVTGGAKGIGKAITVALAQEGAKVVINYNS---SKEAAENLVNELGKEGHDVYA 60
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
++ +++ + + + + K+ +L+NNAG++ K +E +E +N F
Sbjct: 61 VQADVSKVEDANRLVEEAVNHFGKVDILVNNAGITRDRTFKKLNREDWERVIDVNLSSVF 120
Query: 172 LLTNLLIERIQKVVIVGSSLMDRG-TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
T+ ++ I + + G I ++ G+ G G Y +K F
Sbjct: 121 NTTSAVLPYITEA--------EEGRIISISSIIGQAG----GFGQTNYSAAKAGMLGFTK 168
Query: 231 ELYLKYADKGVDVSVVCPGWCYTNL 255
L L+ A V V+ +CPG+ T +
Sbjct: 169 SLALELAKTNVTVNAICPGFIDTEM 193
>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 = 60.8 bits (148), Expect = 2e-10
Identities = 62/218 (28%), Positives = 102/218 (46%), Gaps = 29/218 (13%)
Query: 48 SPFYKP---MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV 104
YK ++GK +ITG +SGIG A A+ A V + ++ E+ KK +
Sbjct: 15 EKSYKGSGKLKGKKALITGGDSGIGRAVAIAFAREGADVAINYLP--EEEDDAEETKKLI 72
Query: 105 -QDG-QIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK--EKLTTKEGYE 160
++G + +L+ +L ++ K V+K++ K+ +L+NNA P + E +TT E E
Sbjct: 73 EEEGRKCLLIPGDLGDESFCRDLVKEVVKEFGKLDILVNNAAYQHPQESIEDITT-EQLE 131
Query: 161 VHFGINHVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPA--- 217
F N F LT + ++K GSS+ I+ ++ KG +P
Sbjct: 132 KTFRTNIFSMFYLTKAALPHLKK----GSSI-----INTTSVTAYKG-------SPHLLD 175
Query: 218 YCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
Y +K F L L+ A+KG+ V+ V PG +T L
Sbjct: 176 YAATKGAIVAFTRGLSLQLAEKGIRVNAVAPGPIWTPL 213
>gnl|CDD|180817 PRK07060, PRK07060, short chain dehydrogenase; Provisional.
Length = 245
Score = 60.5 bits (147), Expect = 2e-10
Identities = 32/117 (27%), Positives = 50/117 (42%), Gaps = 11/117 (9%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GK ++TGA+SGIG A LA+ A VV + R AL++L E + L +
Sbjct: 9 GKSVLVTGASSGIGRACAVALAQRGARVV----AAARNAAALDRLAGETGCEPLRLDVGD 64
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
A+ + + L+N AG++ T EG++ +N G L
Sbjct: 65 DAAIRAA-------LAAAGAFDGLVNCAGIASLESALDMTAEGFDRVMAVNARGAAL 114
>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 = 60.2 bits (146), Expect = 2e-10
Identities = 47/222 (21%), Positives = 82/222 (36%), Gaps = 28/222 (12%)
Query: 58 VCIITGANSGIGYETAKELAK--LKATVVLGCR--SMIRGQEALEKLKKEVQ--DGQIVL 111
V I+TGA+ GIG A ELA + + + I
Sbjct: 3 VAIVTGASRGIGRAIATELAARGFDIAINDLPDDDQATEVVAEVLAAGRRAIYFQADIGE 62
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL--TTKEGYEVHFGINHVG 169
+ + A D + ++ L+NNAG++V + L T++ ++ IN G
Sbjct: 63 LSDHEALLDQAWE-------DFGRLDCLVNNAGIAVRPRGDLLDLTEDSFDRLIAINLRG 115
Query: 170 HFLLT----NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMN 225
F LT ++E+ + R I ++N +G YC SK
Sbjct: 116 PFFLTQAVARRMVEQPDR-----FDGPHRSIIFVTSINAYLVSPNRGE----YCISKAGL 166
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQKV 267
L + AD+G+ V + PG +T++ K+ + +
Sbjct: 167 SMATRLLAYRLADEGIAVHEIRPGLIHTDMTAPVKEKYDELI 208
>gnl|CDD|235975 PRK07231, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 251
Score = 60.2 bits (147), Expect = 2e-10
Identities = 47/208 (22%), Positives = 86/208 (41%), Gaps = 39/208 (18%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL-ME 113
EGKV I+TGA+SGIG A+ A A VV+ R+ +EA E++ E+ G + +
Sbjct: 4 EGKVAIVTGASSGIGEGIARRFAAEGARVVVTDRN----EEAAERVAAEILAGGRAIAVA 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS---VPIKEKLTTKEGYEVHFGINHVGH 170
+++ ++ ++++ + +L+NNAG + P+ + + ++ F +N
Sbjct: 60 ADVSDEADVEAAVAAALERFGSVDILVNNAGTTHRNGPLLD--VDEAEFDRIFAVNVKSP 117
Query: 171 FLLTNLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK--- 222
+L T + ++ +V V S+ L G Y SK
Sbjct: 118 YLWTQAAVPAMRGEGGGAIVNVAST---------AGLRPRPGLG-------WYNASKGAV 161
Query: 223 -LMNYYFGAELYLKYADKGVDVSVVCPG 249
+ AEL + V+ V P
Sbjct: 162 ITLTKALAAEL----GPDKIRVNAVAPV 185
>gnl|CDD|181508 PRK08628, PRK08628, short chain dehydrogenase; Provisional.
Length = 258
Score = 60.0 bits (146), Expect = 2e-10
Identities = 50/216 (23%), Positives = 88/216 (40%), Gaps = 40/216 (18%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++ KV I+TG SGIG + LA+ A V+ RS E E+L+ + V ++
Sbjct: 5 LKDKVVIVTGGASGIGAAISLRLAEEGAIPVIFGRSA-PDDEFAEELRALQPRAEFVQVD 63
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHF 171
L ++ + + ++ +I L+NNAGV V ++ +E + N + ++
Sbjct: 64 LTDD--AQCRDAVEQTVAKFGRIDGLVNNAGVNDGVGLE---AGREAFVASLERNLIHYY 118
Query: 172 LLTNLLIERIQK----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
++ + + ++ +V + S G Q G S Y +K
Sbjct: 119 VMAHYCLPHLKASRGAIVNISSKTALTG--------------QGGTS--GYAAAK----- 157
Query: 228 FGAELYL------KYADKGVDVSVVCPGWCYTNLFR 257
GA+L L A GV V+ V P T L+
Sbjct: 158 -GAQLALTREWAVALAKDGVRVNAVIPAEVMTPLYE 192
>gnl|CDD|235925 PRK07067, PRK07067, sorbitol dehydrogenase; Provisional.
Length = 257
Score = 60.0 bits (146), Expect = 2e-10
Identities = 53/220 (24%), Positives = 95/220 (43%), Gaps = 35/220 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV ++TGA SGIG A+ A VV+ R + A ++ +
Sbjct: 4 LQGKVALLTGAASGIGEAVAERYLAEGARVVIADIKPARARLAALEIGPAAI-----AVS 58
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHF 171
L++ DSI ++++ I +L NNA + PI + +++ Y+ F +N G F
Sbjct: 59 LDVTRQDSIDRIVAAAVERFGGIDILFNNAALFDMAPILD--ISRDSYDRLFAVNVKGLF 116
Query: 172 LLT----NLLIERIQ--KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK--L 223
L ++E+ + K++ + S RG + V YC +K +
Sbjct: 117 FLMQAVARHMVEQGRGGKIINMASQAGRRG----------EALVS------HYCATKAAV 160
Query: 224 MNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKF 263
++Y A L L G++V+ + PG T ++ D F
Sbjct: 161 ISYTQSAALAL--IRHGINVNAIAPGVVDTPMWDQVDALF 198
>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 = 60.0 bits (146), Expect = 3e-10
Identities = 29/137 (21%), Positives = 59/137 (43%), Gaps = 16/137 (11%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
+G V ++TG SG+G T + L A VV+ + E + K + + V +
Sbjct: 1 KGLVAVVTGGASGLGLATVERLLAQGAKVVI----LDLPNSPGETVAKLGDNCRFV--PV 54
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVH--------FGIN 166
++ S +K ++ ++ +++N AG++ + K K+G + H +N
Sbjct: 55 DVTSEKDVKAALALAKAKFGRLDIVVNCAGIA--VAAKTYNKKGQQPHSLELFQRVINVN 112
Query: 167 HVGHFLLTNLLIERIQK 183
+G F + L + K
Sbjct: 113 LIGTFNVIRLAAGAMGK 129
>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 = 59.6 bits (145), Expect = 3e-10
Identities = 40/142 (28%), Positives = 74/142 (52%), Gaps = 11/142 (7%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG-QIVLMELNL 116
V I+TGA+ GIG A+EL K + V+ + R +E L++LK+E++ G ++ ++ +L
Sbjct: 1 VIILTGASRGIGRALAEELLKRGSPSVVVLLA--RSEEPLQELKEELRPGLRVTTVKADL 58
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK--EKLTTKEGYEVHFGINHVGHFLLT 174
+ ++ + + K + +LINNAG P+ E + E + +F +N LT
Sbjct: 59 SDAAGVEQLLEAIRKLDGERDLLINNAGSLGPVSKIEFIDLDE-LQKYFDLNLTSPVCLT 117
Query: 175 NLLI-----ERIQKVVIVGSSL 191
+ L+ ++K V+ SS
Sbjct: 118 STLLRAFKKRGLKKTVVNVSSG 139
>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 = 59.9 bits (145), Expect = 3e-10
Identities = 60/211 (28%), Positives = 97/211 (45%), Gaps = 33/211 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG--QIVL 111
+ +V ++TGA SGIG A+ L K V C RG+E L KE+++ +
Sbjct: 1 QDSEVALVTGATSGIGLAIARRLGKEGLR-VFVCA---RGEEGLATTVKELREAGVEADG 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNA-----GVSVPIKEKLTTKEGYEVHFGIN 166
++ S I+ + +Y I VL+NNA G + + ++L +V +
Sbjct: 57 RTCDVRSVPEIEALVAAAVARYGPIDVLVNNAGRSGGGATAELADELW----LDV---VE 109
Query: 167 HVGHFLLTNLL-IERIQKVVIVGSSLMDRGT---IDFDNLNGEKGFVQKGHSNPAYCNSK 222
TNL + R+ K V+ +++RGT I+ + G++G V H+ P Y SK
Sbjct: 110 -------TNLTGVFRVTKEVLKAGGMLERGTGRIINIASTGGKQGVV---HAAP-YSASK 158
Query: 223 LMNYYFGAELYLKYADKGVDVSVVCPGWCYT 253
F L L+ A G+ V+ VCPG+ T
Sbjct: 159 HGVVGFTKALGLELARTGITVNAVCPGFVET 189
>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 = 59.3 bits (144), Expect = 4e-10
Identities = 28/102 (27%), Positives = 53/102 (51%), Gaps = 10/102 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQE-ALEKLKKEVQD------ 106
+ GKV +TGA+ GIG A LAK ATVV+ ++ G + + L +++
Sbjct: 1 LSGKVAFVTGASRGIGRAIALRLAKAGATVVVAAKTASEGDNGSAKSLPGTIEETAEEIE 60
Query: 107 ---GQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
GQ + + +++ D ++ + + Q+ ++ +L+NNAG
Sbjct: 61 AAGGQALPIVVDVRDEDQVRALVEATVDQFGRLDILVNNAGA 102
>gnl|CDD|181159 PRK07890, PRK07890, short chain dehydrogenase; Provisional.
Length = 258
Score = 59.6 bits (145), Expect = 4e-10
Identities = 50/218 (22%), Positives = 89/218 (40%), Gaps = 51/218 (23%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVL- 111
++GKV +++G G+G A A+ A VVL R+ E L+++ E+ D G+ L
Sbjct: 3 LKGKVVVVSGVGPGLGRTLAVRAARAGADVVLAART----AERLDEVAAEIDDLGRRALA 58
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTT------KEGYEVHFGI 165
+ ++ D N ++++ ++ L+NNA VP + L + E+
Sbjct: 59 VPTDITDEDQCANLVALALERFGRVDALVNNA-FRVPSMKPLADADFAHWRAVIEL---- 113
Query: 166 NHVGHFLLTNL----LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---AY 218
N +G LT L E +V++ S ++ HS P AY
Sbjct: 114 NVLGTLRLTQAFTPALAESGGSIVMINSMVLR-------------------HSQPKYGAY 154
Query: 219 CNSK----LMNYYFGAELYLKYADKGVDVSVVCPGWCY 252
+K + EL +G+ V+ V PG+ +
Sbjct: 155 KMAKGALLAASQSLATEL----GPQGIRVNSVAPGYIW 188
>gnl|CDD|235633 PRK05872, PRK05872, short chain dehydrogenase; Provisional.
Length = 296
Score = 59.6 bits (145), Expect = 5e-10
Identities = 57/232 (24%), Positives = 83/232 (35%), Gaps = 63/232 (27%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ GKV ++TGA GIG E A+ L A + L + + L L E+ VL
Sbjct: 6 SLAGKVVVVTGAARGIGAELARRLHARGAKLAL----VDLEEAELAALAAELGGDDRVLT 61
Query: 113 EL----NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP--------------IKEKLT 154
+ +LA+ + A+ ++++ I V++ NAG++ I L
Sbjct: 62 VVADVTDLAAMQAA---AEEAVERFGGIDVVVANAGIASGGSVAQVDPDAFRRVIDVNLL 118
Query: 155 TKEGYEVHFGINHVGHFLLTNLLIERIQKVVIVGS------SLMDRGTIDFDNLNGEKGF 208
G+ H L LIER V+ V S +
Sbjct: 119 ---------GVFHTVRATLPA-LIERRGYVLQVSSLAAFAAAPG--MA------------ 154
Query: 209 VQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHAD 260
AYC SK F L L+ A GV V W T+L R AD
Sbjct: 155 --------AYCASKAGVEAFANALRLEVAHHGVTVGSAYLSWIDTDLVRDAD 198
Score = 35.3 bits (82), Expect = 0.036
Identities = 18/44 (40%), Positives = 20/44 (45%)
Query: 309 AYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNLFRHAD 352
AYC SK F L L+ A GV V W T+L R AD
Sbjct: 155 AYCASKAGVEAFANALRLEVAHHGVTVGSAYLSWIDTDLVRDAD 198
>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 = 58.9 bits (143), Expect = 6e-10
Identities = 59/218 (27%), Positives = 102/218 (46%), Gaps = 24/218 (11%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE--VQDGQIVLME 113
GKV I+TG + GIG A+ LA+ A V + S R +E E+L K+ V+ +
Sbjct: 8 GKVAIVTGGSRGIGLAIARALAEAGADVAIIYNSAPRAEEKAEELAKKYGVKTKAY---K 64
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLT-TKEGYEVHFGINHVGHFL 172
+++S +S++ K + K + KI +LI NAG++V K L T E + +N G F
Sbjct: 65 CDVSSQESVEKTFKQIQKDFGKIDILIANAGITVH-KPALDYTYEQWNKVIDVNLNGVFN 123
Query: 173 LTN----LLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
+ ++ + +I+ +S+ GTI V + AY SK +
Sbjct: 124 CAQAAAKIFKKQGKGSLIITASM--SGTI-----------VNRPQPQAAYNASKAAVIHL 170
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQK 266
L +++A + V+ + PG+ T+L D + +K
Sbjct: 171 AKSLAVEWAKYFIRVNSISPGYIDTDLTDFVDKELRKK 208
>gnl|CDD|237188 PRK12745, PRK12745, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 58.8 bits (143), Expect = 6e-10
Identities = 30/123 (24%), Positives = 53/123 (43%), Gaps = 9/123 (7%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATV-VLGCRSMIRGQEALEKLKKEVQD--GQIVLME 113
V ++TG GIG A+ LA + + E L ++E++ +++
Sbjct: 3 PVALVTGGRRGIGLGIARALAAAGFDLAIND----RPDDEELAATQQELRALGVEVIFFP 58
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL--TTKEGYEVHFGINHVGHF 171
++A + + + +I L+NNAGV V ++ L T E ++ IN G F
Sbjct: 59 ADVADLSAHEAMLDAAQAAWGRIDCLVNNAGVGVKVRGDLLDLTPESFDRVLAINLRGPF 118
Query: 172 LLT 174
LT
Sbjct: 119 FLT 121
>gnl|CDD|236216 PRK08277, PRK08277, D-mannonate oxidoreductase; Provisional.
Length = 278
Score = 58.4 bits (142), Expect = 1e-09
Identities = 37/133 (27%), Positives = 63/133 (47%), Gaps = 13/133 (9%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVLM 112
+GKV +ITG +G AKELA+ A V + + R QE E + E+ G+ + +
Sbjct: 9 KGKVAVITGGGGVLGGAMAKELARAGAKVAI----LDRNQEKAEAVVAEIKAAGGEALAV 64
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
+ ++ +S++ + +++ + +LIN AG + P K TT E H I F
Sbjct: 65 KADVLDKESLEQARQQILEDFGPCDILINGAGGNHP---KATTDN--EFHELIEPTKTFF 119
Query: 173 LTNLLIERIQKVV 185
+L E + V
Sbjct: 120 --DLDEEGFEFVF 130
>gnl|CDD|180440 PRK06172, PRK06172, short chain dehydrogenase; Provisional.
Length = 253
Score = 58.2 bits (141), Expect = 1e-09
Identities = 50/211 (23%), Positives = 89/211 (42%), Gaps = 24/211 (11%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
GKV ++TG +GIG TA A+ A VV+ R G+E + L +E G+ + +
Sbjct: 6 SGKVALVTGGAAGIGRATALAFAREGAKVVVADRDAAGGEETVA-LIREA-GGEALFVAC 63
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV---PIKEKLTTKEGYEVHFGINHVGHF 171
++ +K + + Y ++ NNAG+ + + E ++ ++ G+N G +
Sbjct: 64 DVTRDAEVKALVEQTIAAYGRLDYAFNNAGIEIEQGRLAEG--SEAEFDAIMGVNVKGVW 121
Query: 172 LLTNLLIERIQKV---VIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
L I + IV ++ ++ G + Y SK
Sbjct: 122 LCMKYQIPLMLAQGGGAIVNTA----------SVAGLGAAPKM----SIYAASKHAVIGL 167
Query: 229 GAELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
++YA KG+ V+ VCP T++FR A
Sbjct: 168 TKSAAIEYAKKGIRVNAVCPAVIDTDMFRRA 198
Score = 30.9 bits (70), Expect = 0.99
Identities = 12/26 (46%), Positives = 17/26 (65%)
Query: 326 LKYADKGVDVCVVCPGWCYTNLFRHA 351
++YA KG+ V VCP T++FR A
Sbjct: 173 IEYAKKGIRVNAVCPAVIDTDMFRRA 198
>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 = 58.3 bits (141), Expect = 1e-09
Identities = 63/257 (24%), Positives = 103/257 (40%), Gaps = 50/257 (19%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
EGKV ++TGA GIG A+ LA A V+L RS + E L ++ +
Sbjct: 1 RFEGKVVVVTGAAQGIGRGVAERLAGEGARVLLVDRSEL-VHEVLAEILAAG--DAAHVH 57
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
+L ++ + + ++++ ++ VLINN G ++ K E YE + L
Sbjct: 58 TADLETYAGAQGVVRAAVERFGRVDVLINNVGGTIWAK----PYEHYEEEQIEAEIRRSL 113
Query: 173 LTNL---------LIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL 223
L ++ER Q V++ SS+ RG + P Y +K
Sbjct: 114 FPTLWCCRAVLPHMLERQQGVIVNVSSIATRG----------------IYRIP-YSAAKG 156
Query: 224 MNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFR---------HADIKFYQKVMIFPIAM 274
A L ++A G+ V+ V PG + + +YQ+++
Sbjct: 157 GVNALTASLAFEHARDGIRVNAVAPGGTEAPPRKIPRNAAPMSEQEKVWYQRIVD----- 211
Query: 275 MVVIVGSSLMDR-GTID 290
+ SSLM R GTID
Sbjct: 212 --QTLDSSLMGRYGTID 226
>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 = 57.9 bits (140), Expect = 1e-09
Identities = 38/125 (30%), Positives = 59/125 (47%), Gaps = 10/125 (8%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV IITG SGIG TA+ AK A VV+ GQ + E+ D I +
Sbjct: 2 LDGKVAIITGGASGIGEATARLFAKHGARVVIADIDDDAGQ----AVAAELGDPDISFVH 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP----IKEKLTTKEGYEVHFGINHVG 169
++ ++ + ++ ++ ++ NNAGV I E T+ E +E +N G
Sbjct: 58 CDVTVEADVRAAVDTAVARFGRLDIMFNNAGVLGAPCYSILE--TSLEEFERVLDVNVYG 115
Query: 170 HFLLT 174
FL T
Sbjct: 116 AFLGT 120
>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 = 57.9 bits (140), Expect = 1e-09
Identities = 36/141 (25%), Positives = 63/141 (44%), Gaps = 5/141 (3%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
KV I+TG + GIG + + A VV R GQ ALE G + +
Sbjct: 9 DKVVIVTGGSRGIGRGIVRAFVENGAKVVFCARGEAAGQ-ALESELNRAGPGSCKFVPCD 67
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKE-KLTTKEGYEVHFGINHVGHFLLT 174
+ + IK ++++ +I L+NNAG P + T+ + + +N + +FL +
Sbjct: 68 VTKEEDIKTLISVTVERFGRIDCLVNNAGWHPPHQTTDETSAQEFRDLLNLNLISYFLAS 127
Query: 175 NLLIERIQKV---VIVGSSLM 192
+ ++K +I SSL+
Sbjct: 128 KYALPHLRKSQGNIINLSSLV 148
>gnl|CDD|181298 PRK08219, PRK08219, short chain dehydrogenase; Provisional.
Length = 227
Score = 57.3 bits (139), Expect = 2e-09
Identities = 55/201 (27%), Positives = 88/201 (43%), Gaps = 34/201 (16%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
ME +ITGA+ GIG A+ELA T++LG R E L++L E+ G
Sbjct: 1 MERPTALITGASRGIGAAIARELAP-THTLLLGGRP----AERLDELAAEL-PGATPF-P 53
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
++L ++I ++Q ++ VL++NAGV+ P+ E +T + + +N V
Sbjct: 54 VDLTDPEAI----AAAVEQLGRLDVLVHNAGVADLGPVAE--STVDEWRATLEVNVVAPA 107
Query: 172 LLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---AYCNSKLMNYYF 228
LT LL+ ++ G + F +N G +NP +Y SK
Sbjct: 108 ELTRLLLPALRAA---------HGHVVF--INSGAGL----RANPGWGSYAASKFALRAL 152
Query: 229 GAELYLKYADKGVDVSVVCPG 249
L + V V+ V PG
Sbjct: 153 ADALREEEPGN-VRVTSVHPG 172
>gnl|CDD|181721 PRK09242, PRK09242, tropinone reductase; Provisional.
Length = 257
Score = 57.4 bits (139), Expect = 2e-09
Identities = 32/142 (22%), Positives = 67/142 (47%), Gaps = 5/142 (3%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++G+ +ITGA+ GIG A+E L A V++ R +A ++L +E + ++ +
Sbjct: 7 LDGQTALITGASKGIGLAIAREFLGLGADVLIVARDADALAQARDELAEEFPEREVHGLA 66
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
+++ + + V + +H+L+NNAG ++ T++ + F N F L
Sbjct: 67 ADVSDDEDRRAILDWVEDHWDGLHILVNNAGGNIRKAAIDYTEDEWRGIFETNLFSAFEL 126
Query: 174 TNLLIERIQ-----KVVIVGSS 190
+ ++ +V +GS
Sbjct: 127 SRYAHPLLKQHASSAIVNIGSV 148
>gnl|CDD|181139 PRK07832, PRK07832, short chain dehydrogenase; Provisional.
Length = 272
Score = 57.4 bits (139), Expect = 2e-09
Identities = 60/236 (25%), Positives = 97/236 (41%), Gaps = 71/236 (30%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLME- 113
K C +TGA SGIG TA LA A + L R + L + + + G +
Sbjct: 1 KRCFVTGAASGIGRATALRLAAQGAELFLTDRD----ADGLAQTVADARALGGTVPEHRA 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
L+++ +D++ FA ++ + + V++N AG+S +G +
Sbjct: 57 LDISDYDAVAAFAADIHAAHGSMDVVMNIAGISA---------------WGT-------V 94
Query: 174 TNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFV-------QKGH----SNPA----- 217
L E+ +++V V +LM G I + + FV + GH S+ A
Sbjct: 95 DRLTHEQWRRMVDV--NLM--GPI-----HVIETFVPPMVAAGRGGHLVNVSSAAGLVAL 145
Query: 218 -----YCNSKLMNYYFG----AELYLKY--ADKGVDVSVVCPGWCYTNLFRHADIK 262
Y SK FG +E+ L++ A G+ VSVV PG T L +I
Sbjct: 146 PWHAAYSASK-----FGLRGLSEV-LRFDLARHGIGVSVVVPGAVKTPLVNTVEIA 195
Score = 30.0 bits (68), Expect = 2.0
Identities = 18/52 (34%), Positives = 24/52 (46%), Gaps = 12/52 (23%)
Query: 309 AYCNSKLMNYYFG----AELYLKY--ADKGVDVCVVCPGWCYTNLFRHADIK 354
AY SK FG +E+ L++ A G+ V VV PG T L +I
Sbjct: 150 AYSASK-----FGLRGLSEV-LRFDLARHGIGVSVVVPGAVKTPLVNTVEIA 195
>gnl|CDD|180439 PRK06171, PRK06171, sorbitol-6-phosphate 2-dehydrogenase;
Provisional.
Length = 266
Score = 57.3 bits (139), Expect = 2e-09
Identities = 32/128 (25%), Positives = 60/128 (46%), Gaps = 20/128 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GK+ I+TG +SGIG KEL A VV + + Q +
Sbjct: 7 LQGKIIIVTGGSSGIGLAIVKELLANGANVVN-----------ADIHGGDGQHENYQFVP 55
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP--IKEKLTTKEGYEV-------HFG 164
+++S + + + +++++ +I L+NNAG+++P + ++ YE+ F
Sbjct: 56 TDVSSAEEVNHTVAEIIEKFGRIDGLVNNAGINIPRLLVDEKDPAGKYELNEAAFDKMFN 115
Query: 165 INHVGHFL 172
IN G FL
Sbjct: 116 INQKGVFL 123
>gnl|CDD|180823 PRK07074, PRK07074, short chain dehydrogenase; Provisional.
Length = 257
Score = 57.1 bits (138), Expect = 3e-09
Identities = 44/198 (22%), Positives = 72/198 (36%), Gaps = 26/198 (13%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
+ ++TGA GIG A+ V+ + AL + D + V + +L
Sbjct: 3 RTALVTGAAGGIGQALARRFLAAGDRVLA----LDIDAAALAAFADALGDARFVPVACDL 58
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL---- 172
S+ N + + VL+ NAG + TT + +N +L
Sbjct: 59 TDAASLAAALANAAAERGPVDVLVANAGAARAASLHDTTPASWRADNALNLEAAYLCVEA 118
Query: 173 -LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
L +L VV +GS +NG GH PAY +K ++
Sbjct: 119 VLEGMLKRSRGAVVNIGS------------VNGMAAL---GH--PAYSAAKAGLIHYTKL 161
Query: 232 LYLKYADKGVDVSVVCPG 249
L ++Y G+ + V PG
Sbjct: 162 LAVEYGRFGIRANAVAPG 179
>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 = 56.9 bits (138), Expect = 4e-09
Identities = 63/212 (29%), Positives = 93/212 (43%), Gaps = 50/212 (23%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
K +ITG +SG G AK+L L TV+ GC + G A ++L++ D ++ ++L++
Sbjct: 1 KAVLITGCDSGFGNLLAKKLDSLGFTVLAGCLTKN-GPGA-KELRRVCSD-RLRTLQLDV 57
Query: 117 ASFDSIKNFAKNVMKQYPKIHV-------LINNAGVSVPIK-EKLTTKEGY----EVH-F 163
+ IK A+ V K HV L+NNAG+ E+L + Y EV+ F
Sbjct: 58 TKPEQIKRAAQWV-----KEHVGEKGLWGLVNNAGILGFGGDEELLPMDDYRKCMEVNLF 112
Query: 164 GINHVGHFLLTNLLIERIQ-KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
G V L L+ R + +VV V S G F G AYC SK
Sbjct: 113 GTVEVTKAFLP--LLRRAKGRVVNVSSMG------------GRVPFPAGG----AYCASK 154
Query: 223 LMNYYFGAELY---LKYADK--GVDVSVVCPG 249
E + L+ + GV VS++ PG
Sbjct: 155 -----AAVEAFSDSLRRELQPWGVKVSIIEPG 181
>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 = 56.2 bits (136), Expect = 4e-09
Identities = 46/203 (22%), Positives = 90/203 (44%), Gaps = 31/203 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+EGKV I+TGA SG G A+ A+ A VV+ + E++ ++ + I + +
Sbjct: 3 LEGKVAIVTGAGSGFGEGIARRFAQEGARVVIADINADGA----ERVAADIGEAAIAI-Q 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS---VPIKEKLTTKEGYEVHFGINHVGH 170
++ ++ + + ++ ++ +L+NNAG++ P+ E +E ++ F +N
Sbjct: 58 ADVTKRADVEAMVEAALSKFGRLDILVNNAGITHRNKPMLE--VDEEEFDRVFAVNVKSI 115
Query: 171 FLLTNLLI---ERIQKVVI--VGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMN 225
+L L+ E VI + S+ R N KG+V A +K M
Sbjct: 116 YLSAQALVPHMEEQGGGVIINIASTAGLRPRPGLTWYNASKGWV-----VTA---TKAMA 167
Query: 226 YYFGAELYLKYADKGVDVSVVCP 248
++ A + + V+ +CP
Sbjct: 168 --------VELAPRNIRVNCLCP 182
>gnl|CDD|235713 PRK06139, PRK06139, short chain dehydrogenase; Provisional.
Length = 330
Score = 56.7 bits (137), Expect = 6e-09
Identities = 31/96 (32%), Positives = 52/96 (54%), Gaps = 6/96 (6%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQI 109
P+ G V +ITGA+SGIG TA+ A+ A +VL R +EAL+ + +E + ++
Sbjct: 3 GPLHGAVVVITGASSGIGQATAEAFARRGARLVLAA----RDEEALQAVAEECRALGAEV 58
Query: 110 VLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+++ ++ D +K A +I V +NN GV
Sbjct: 59 LVVPTDVTDADQVKALATQAASFGGRIDVWVNNVGV 94
>gnl|CDD|180371 PRK06057, PRK06057, short chain dehydrogenase; Provisional.
Length = 255
Score = 55.9 bits (135), Expect = 6e-09
Identities = 30/95 (31%), Positives = 47/95 (49%), Gaps = 7/95 (7%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ G+V +ITG SGIG TA+ LA ATVV+G G+ A +++ G V
Sbjct: 5 LAGRVAVITGGGSGIGLATARRLAAEGATVVVGDIDPEAGKAAADEV-----GGLFV--P 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP 148
++ D++ + Y + + NNAG+S P
Sbjct: 58 TDVTDEDAVNALFDTAAETYGSVDIAFNNAGISPP 92
>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 = 55.4 bits (134), Expect = 7e-09
Identities = 45/204 (22%), Positives = 80/204 (39%), Gaps = 29/204 (14%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVLMELNLA 117
+ITGA+SGIG A+E AK V L R + L++LK E+ + + + L++
Sbjct: 2 LITGASSGIGRALAREFAKAGYNVALAARR----TDRLDELKAELLNPNPSVEVEILDVT 57
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK-EKLTTKEGYEVHFGINHVGHFLLTNL 176
+ + + + + ++I NAGV L+ K E N +G +
Sbjct: 58 DEERNQLVIAELEAELGGLDLVIINAGVGKGTSLGDLSFKAFRET-IDTNLLGAAAILEA 116
Query: 177 LIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
+ + + +V++ S + +G AY SK
Sbjct: 117 ALPQFRAKGRGHLVLISS------------VAALRGLPGA----AAYSASKAALSSLAES 160
Query: 232 LYLKYADKGVDVSVVCPGWCYTNL 255
L +G+ V+V+ PG+ T L
Sbjct: 161 LRYDVKKRGIRVTVINPGFIDTPL 184
>gnl|CDD|135765 PRK06113, PRK06113, 7-alpha-hydroxysteroid dehydrogenase;
Validated.
Length = 255
Score = 55.6 bits (134), Expect = 7e-09
Identities = 38/132 (28%), Positives = 61/132 (46%), Gaps = 7/132 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GK IITGA +GIG E A A A+VV+ S I +A + E+Q GQ
Sbjct: 9 LDGKCAIITGAGAGIGKEIAITFATAGASVVV---SDIN-ADAANHVVDEIQQLGGQAFA 64
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
++ S + A + + K+ +L+NNAG P K + + +N F
Sbjct: 65 CRCDITSEQELSALADFALSKLGKVDILVNNAGGGGP-KPFDMPMADFRRAYELNVFSFF 123
Query: 172 LLTNLLIERIQK 183
L+ L+ ++K
Sbjct: 124 HLSQLVAPEMEK 135
>gnl|CDD|236190 PRK08220, PRK08220, 2,3-dihydroxybenzoate-2,3-dehydrogenase;
Validated.
Length = 252
Score = 55.3 bits (134), Expect = 1e-08
Identities = 29/143 (20%), Positives = 57/143 (39%), Gaps = 20/143 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
GK +TGA GIGY A + A V+ ++ +D
Sbjct: 6 FSGKTVWVTGAAQGIGYAVALAFVEAGAKVI-----------GFDQAFLTQEDYPFATFV 54
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHF 171
L+++ ++ + ++ + + VL+N AG+ + E ++ F +N G F
Sbjct: 55 LDVSDAAAVAQVCQRLLAETGPLDVLVNAAGILRMGATDS--LSDEDWQQTFAVNAGGAF 112
Query: 172 LLTNLLIERIQK-----VVIVGS 189
L ++ + ++ +V VGS
Sbjct: 113 NLFRAVMPQFRRQRSGAIVTVGS 135
>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 = 54.8 bits (132), Expect = 1e-08
Identities = 56/213 (26%), Positives = 98/213 (46%), Gaps = 38/213 (17%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVV-LGCRSMIRGQEALEKLKKEVQDGQIVL- 111
+EGKV ++TGAN+G+G A LA+ A +V G Q+ +E L G+ L
Sbjct: 3 LEGKVALVTGANTGLGQGIAVGLAEAGADIVGAGRSEPSETQQQVEAL------GRRFLS 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK----EKLTTKEGYEVHFGINH 167
+ +L+ ++IK + ++++ I +L+NNAG+ I+ E+ + K+ +V +N
Sbjct: 57 LTADLSDIEAIKALVDSAVEEFGHIDILVNNAGI---IRRADAEEFSEKDWDDV-MNVNL 112
Query: 168 VGHFLLTNLLIERI------QKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNS 221
F LT + K++ + S L +G I P+Y S
Sbjct: 113 KSVFFLTQAAAKHFLKQGRGGKIINIASMLSFQGGIRV----------------PSYTAS 156
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPGWCYTN 254
K L ++A KG++V+ + PG+ TN
Sbjct: 157 KHAVAGLTKLLANEWAAKGINVNAIAPGYMATN 189
>gnl|CDD|236074 PRK07666, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 239
Score = 54.3 bits (131), Expect = 2e-08
Identities = 29/95 (30%), Positives = 52/95 (54%), Gaps = 6/95 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ--DGQIVL 111
++GK +ITGA GIG A LAK V L R+ +E L+ + +EV+ ++V+
Sbjct: 5 LQGKNALITGAGRGIGRAVAIALAKEGVNVGLLART----EENLKAVAEEVEAYGVKVVI 60
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS 146
+++ ++ + + + + I +LINNAG+S
Sbjct: 61 ATADVSDYEEVTAAIEQLKNELGSIDILINNAGIS 95
>gnl|CDD|180818 PRK07062, PRK07062, short chain dehydrogenase; Provisional.
Length = 265
Score = 54.7 bits (132), Expect = 2e-08
Identities = 25/92 (27%), Positives = 49/92 (53%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+EG+V ++TG +SGIG T + L + A+V + R R A +L+++ +++
Sbjct: 5 QLEGRVAVVTGGSSGIGLATVELLLEAGASVAICGRDEERLASAEARLREKFPGARLLAA 64
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
++ + FA V ++ + +L+NNAG
Sbjct: 65 RCDVLDEADVAAFAAAVEARFGGVDMLVNNAG 96
>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 = 54.2 bits (130), Expect = 2e-08
Identities = 48/216 (22%), Positives = 91/216 (42%), Gaps = 27/216 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GK +ITG+ GIG A+ + A V + ++ + ++ +
Sbjct: 1 LDGKTALITGSARGIGRAFAQAYVREGARVAIADINLEAARATAAEIGPAA-----CAIS 55
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHF 171
L++ SI ++ ++ I +L+NNA + PI + T+E Y+ F IN G
Sbjct: 56 LDVTDQASIDRCVAALVDRWGSIDILVNNAALFDLAPIVD--ITRESYDRLFAINVSGTL 113
Query: 172 LLTNLLIERIQKVVIVGSSLMDRG--TIDFDNLNGEKGFVQKGHSNPAYCNSK--LMNYY 227
+++ + + +I RG I+ + G +G G YC +K +++
Sbjct: 114 ----FMMQAVARAMIAQG----RGGKIINMASQAGRRGEALVGV----YCATKAAVISLT 161
Query: 228 FGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIKF 263
A L L G++V+ + PG + D KF
Sbjct: 162 QSAGLNL--IRHGINVNAIAPGVVDGEHWDGVDAKF 195
>gnl|CDD|237189 PRK12748, PRK12748, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 54.3 bits (131), Expect = 2e-08
Identities = 32/140 (22%), Positives = 62/140 (44%), Gaps = 11/140 (7%)
Query: 52 KPMEGKVCIITGAN--SGIGYETAKELAKLKATVVL-----GCRSMIRGQEALEK--LKK 102
P+ K+ ++TGA+ +GIG + LA + ++M G E LK+
Sbjct: 1 LPLMKKIALVTGASRLNGIGAAVCRRLAAKGIDIFFTYWSPYDKTMPWGMHDKEPVLLKE 60
Query: 103 EVQDGQIVL--MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYE 160
E++ + ME++L+ + V ++ +LINNA S + + T E +
Sbjct: 61 EIESYGVRCEHMEIDLSQPYAPNRVFYAVSERLGDPSILINNAAYSTHTRLEELTAEQLD 120
Query: 161 VHFGINHVGHFLLTNLLIER 180
H+ +N LL++ ++
Sbjct: 121 KHYAVNVRATMLLSSAFAKQ 140
>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 = 54.1 bits (130), Expect = 2e-08
Identities = 25/92 (27%), Positives = 48/92 (52%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ KV +ITG SG+G TA LAK A + L + + A L + D +++L++
Sbjct: 1 FKDKVVLITGGGSGLGLATAVRLAKEGAKLSLVDLNEEGLEAAKAALLEIAPDAEVLLIK 60
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+++ ++ + ++Q+ +I NNAG+
Sbjct: 61 ADVSDEAQVEAYVDATVEQFGRIDGFFNNAGI 92
>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 = 53.8 bits (130), Expect = 3e-08
Identities = 48/200 (24%), Positives = 84/200 (42%), Gaps = 33/200 (16%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG-QIVLMELNLAS 118
++TGA GIGY A+ LA+ A V ++ LE + + G +L++A
Sbjct: 2 LVTGAAQGIGYAVARALAEAGARVA-AVD--RNFEQLLELVADLRRYGYPFATYKLDVAD 58
Query: 119 FDSIKNFAKNVMKQYPKIHVLINNAGV-SV-PIKEKLTTKEGYEVHFGINHVGHFLLTNL 176
++ + + ++Y I VL+N AG+ + I + E ++ F +N G F ++
Sbjct: 59 SAAVDEVVQRLEREYGPIDVLVNVAGILRLGAIDS--LSDEDWQATFAVNTFGVFNVSQA 116
Query: 177 LIERIQK-----VVIVGS--SLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
+ R+++ +V VGS + + R AY SK
Sbjct: 117 VSPRMKRRRSGAIVTVGSNAANVPR------------------MGMAAYAASKAALTMLT 158
Query: 230 AELYLKYADKGVDVSVVCPG 249
L L+ A G+ +VV PG
Sbjct: 159 KCLGLELAPYGIRCNVVSPG 178
>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 = 54.0 bits (130), Expect = 3e-08
Identities = 50/209 (23%), Positives = 88/209 (42%), Gaps = 18/209 (8%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG-QIVLMELN 115
KV ++TG GIG A+ LAK V + + + + A E K+ Q G + V +L+
Sbjct: 1 KVALVTGGAQGIGKGIAERLAKDGFAVAV---ADLNEETAKETAKEINQAGGKAVAYKLD 57
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHFLL 173
++ D + + +++ V++NNAGV PI E T+E + + +N G
Sbjct: 58 VSDKDQVFSAIDQAAEKFGGFDVMVNNAGVAPITPILE--ITEEELKKVYNVNVKGVLFG 115
Query: 174 TNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELY 233
+ +K G I+ ++ G +G AY ++K
Sbjct: 116 IQAAARQFKKQGHGGK------IINAASIAGHEGNPILS----AYSSTKFAVRGLTQTAA 165
Query: 234 LKYADKGVDVSVVCPGWCYTNLFRHADIK 262
+ A KG+ V+ CPG T ++ D +
Sbjct: 166 QELAPKGITVNAYCPGIVKTPMWEEIDEE 194
>gnl|CDD|171820 PRK12936, PRK12936, 3-ketoacyl-(acyl-carrier-protein) reductase
NodG; Reviewed.
Length = 245
Score = 53.8 bits (129), Expect = 3e-08
Identities = 56/208 (26%), Positives = 83/208 (39%), Gaps = 38/208 (18%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVL-GCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ G+ ++TGA+ GIG E A+ L A V L G R E LE L E+ + ++ +
Sbjct: 4 LSGRKALVTGASGGIGEEIARLLHAQGAIVGLHGTRV-----EKLEALAAELGE-RVKIF 57
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFG-------- 164
NL+ D +K + + +L+NNAG+ TK+G V
Sbjct: 58 PANLSDRDEVKALGQKAEADLEGVDILVNNAGI---------TKDGLFVRMSDEDWDSVL 108
Query: 165 -INHVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFV-QKGHSNPAYCNSK 222
+N F LT L +M R N+ G G +N YC SK
Sbjct: 109 EVNLTATFRLTRELTH----------PMMRRRYGRIINITSVVGVTGNPGQAN--YCASK 156
Query: 223 LMNYYFGAELYLKYADKGVDVSVVCPGW 250
F L + A + V V+ V PG+
Sbjct: 157 AGMIGFSKSLAQEIATRNVTVNCVAPGF 184
>gnl|CDD|183718 PRK12746, PRK12746, short chain dehydrogenase; Provisional.
Length = 254
Score = 53.5 bits (128), Expect = 3e-08
Identities = 56/214 (26%), Positives = 96/214 (44%), Gaps = 28/214 (13%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ--DGQI 109
K ++GKV ++TGA+ GIG A LA A V + R ++A ++ +E++ G+
Sbjct: 2 KNLDGKVALVTGASRGIGRAIAMRLANDGALVAI---HYGRNKQAADETIREIESNGGKA 58
Query: 110 VLMELNLASFDSIKNFAKNVMKQY------PKIHVLINNAGVSVPIKEKLTTKEGYEVHF 163
L+E +L S D +K + + + +I +L+NNAG+ + TT+E ++
Sbjct: 59 FLIEADLNSIDGVKKLVEQLKNELQIRVGTSEIDILVNNAGIGTQGTIENTTEEIFDEIM 118
Query: 164 GINHVGHFLLTN--LLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNS 221
+N F L L + R + VI SS R G G + G S A
Sbjct: 119 AVNIKAPFFLIQQTLPLLRAEGRVINISSAEVR--------LGFTGSIAYGLSKGALNTM 170
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
L L ++G+ V+ + PG+ T++
Sbjct: 171 TL-------PLAKHLGERGITVNTIMPGYTKTDI 197
>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
Length = 259
Score = 53.7 bits (129), Expect = 4e-08
Identities = 29/86 (33%), Positives = 50/86 (58%), Gaps = 5/86 (5%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVLMELNLAS 118
++T ++ GIG+ A+EL K A VV+ R+ +E LEK KE+++ G++ ++ +L+
Sbjct: 4 LVTASSRGIGFNVARELLKKGARVVISSRN----EENLEKALKELKEYGEVYAVKADLSD 59
Query: 119 FDSIKNFAKNVMKQYPKIHVLINNAG 144
D +KN K + I L+ NAG
Sbjct: 60 KDDLKNLVKEAWELLGGIDALVWNAG 85
>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 = 53.4 bits (128), Expect = 4e-08
Identities = 52/217 (23%), Positives = 87/217 (40%), Gaps = 31/217 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++ K I+TG GIG T + A+ A V + +EA EK+ +++ G
Sbjct: 1 LKDKTAIVTGGGGGIGGATCRRFAEEGAKVAV----FDLNREAAEKVAADIRAKGGNAQA 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEG-YEVHFGIN---- 166
++ DS+ + + VL+NNAG T+ +E IN
Sbjct: 57 FACDITDRDSVDTAVAAAEQALGPVDVLVNNAGWDK-FGPFTKTEPPLWERLIAINLTGA 115
Query: 167 -HVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMN 225
H+ H +L ++ ++V + S G+ +GE + A C L+
Sbjct: 116 LHMHHAVLPGMVERGAGRIVNIASDAARVGS------SGEAVY--------AACKGGLVA 161
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHADIK 262
F + ++A G+ V+VVCPG T L DI
Sbjct: 162 --FSKTMAREHARHGITVNVVCPGPTDTALL--DDIC 194
>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 = 53.1 bits (128), Expect = 5e-08
Identities = 34/149 (22%), Positives = 66/149 (44%), Gaps = 20/149 (13%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLG-CRSMIRGQEALEKLKKEVQD------GQ 108
G+V ++TGA G+G A A+ A VV+ +G +V D G+
Sbjct: 5 GRVVLVTGAGGGLGRAYALAFAERGAKVVVNDLGGDRKGSGKSSSAADKVVDEIKAAGGK 64
Query: 109 IVLMELNLASFDSIKNFAK---NVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGI 165
V A++DS+++ K + + ++ +L+NNAG+ ++E +++ +
Sbjct: 65 AV------ANYDSVEDGEKIVKTAIDAFGRVDILVNNAGILRDRSFAKMSEEDWDLVMRV 118
Query: 166 NHVGHFLLTNLLIERIQK----VVIVGSS 190
+ G F +T ++K +I SS
Sbjct: 119 HLKGSFKVTRAAWPYMRKQKFGRIINTSS 147
>gnl|CDD|180576 PRK06463, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 255
Score = 52.9 bits (127), Expect = 6e-08
Identities = 31/116 (26%), Positives = 56/116 (48%), Gaps = 7/116 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+GKV +ITG GIG A+ + A V + S E KE+++ + ++
Sbjct: 5 FKGKVALITGGTRGIGRAIAEAFLREGAKVAVLYNSA-------ENEAKELREKGVFTIK 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVG 169
++ + D +K + V K++ ++ VL+NNAG+ + + +E Y IN G
Sbjct: 58 CDVGNRDQVKKSKEVVEKEFGRVDVLVNNAGIMYLMPFEEFDEEKYNKMIKINLNG 113
>gnl|CDD|184025 PRK13394, PRK13394, 3-hydroxybutyrate dehydrogenase; Provisional.
Length = 262
Score = 52.6 bits (126), Expect = 7e-08
Identities = 50/206 (24%), Positives = 91/206 (44%), Gaps = 20/206 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GK ++TGA SGIG E A ELA+ A V + + +++ K G+ + +
Sbjct: 5 LNGKTAVVTGAASGIGKEIALELARAGAAVAIADLNQDGANAVADEINK--AGGKAIGVA 62
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
+++ + D++ V +++ + +L++NAG+ + PI+ ++ I+ G F
Sbjct: 63 MDVTNEDAVNAGIDKVAERFGSVDILVSNAGIQIVNPIENYSFAD--WKKMQAIHVDGAF 120
Query: 172 LLTNLLIERIQKVVIVGSSLMDRG--TIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
L T ++ + K DRG I +++ + K AY +K
Sbjct: 121 LTTKAALKHMYKD--------DRGGVVIYMGSVHSHEASPLKS----AYVTAKHGLLGLA 168
Query: 230 AELYLKYADKGVDVSVVCPGWCYTNL 255
L + A V VVCPG+ T L
Sbjct: 169 RVLAKEGAKHNVRSHVVCPGFVRTPL 194
>gnl|CDD|181297 PRK08217, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 52.3 bits (126), Expect = 9e-08
Identities = 43/161 (26%), Positives = 73/161 (45%), Gaps = 22/161 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ--DGQIVL 111
++ KV +ITG G+G A+ LA+ A + L + QE LE+ E ++
Sbjct: 3 LKDKVIVITGGAQGLGRAMAEYLAQKGAKLAL----IDLNQEKLEEAVAECGALGTEVRG 58
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS-----VPIKE-KLTTKEGYEVHF-- 163
N+ + ++ + + + +++ LINNAG+ V K+ K+T+K E F
Sbjct: 59 YAANVTDEEDVEATFAQIAEDFGQLNGLINNAGILRDGLLVKAKDGKVTSKMSLE-QFQS 117
Query: 164 --GINHVGHFLLTN----LLIERIQKVVIVG-SSLMDRGTI 197
+N G FL +IE K VI+ SS+ G +
Sbjct: 118 VIDVNLTGVFLCGREAAAKMIESGSKGVIINISSIARAGNM 158
>gnl|CDD|236094 PRK07774, PRK07774, short chain dehydrogenase; Provisional.
Length = 250
Score = 52.1 bits (125), Expect = 1e-07
Identities = 29/98 (29%), Positives = 52/98 (53%), Gaps = 6/98 (6%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLM 112
+ KV I+TGA GIG A+ LA+ A+VV+ + E E++ K++ G + +
Sbjct: 5 DDKVAIVTGAAGGIGQAYAEALAREGASVVVADIN----AEGAERVAKQIVADGGTAIAV 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK 150
+++++ DS K A + + I L+NNA + +K
Sbjct: 61 QVDVSDPDSAKAMADATVSAFGGIDYLVNNAAIYGGMK 98
>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 = 52.0 bits (125), Expect = 1e-07
Identities = 31/96 (32%), Positives = 53/96 (55%), Gaps = 7/96 (7%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ---DGQIVL 111
E K+ +ITGA IG K L A ++L ALE+LK+E+ +++
Sbjct: 1 EDKIILITGAAGLIGKAFCKALLSAGARLILA----DINAPALEQLKEELTNLYKNRVIA 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
+EL++ S +SIK ++ ++++ +I +LINNA S
Sbjct: 57 LELDITSKESIKELIESYLEKFGRIDILINNAYPSP 92
>gnl|CDD|236099 PRK07791, PRK07791, short chain dehydrogenase; Provisional.
Length = 286
Score = 52.4 bits (126), Expect = 1e-07
Identities = 28/99 (28%), Positives = 46/99 (46%), Gaps = 7/99 (7%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLG-CRSMIRGQEALEKLKKEVQD------ 106
++G+V I+TGA GIG A A A VV+ + G + + V D
Sbjct: 4 LDGRVVIVTGAGGGIGRAHALAFAAEGARVVVNDIGVGLDGSASGGSAAQAVVDEIVAAG 63
Query: 107 GQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
G+ V ++A +D N ++ + + VL+NNAG+
Sbjct: 64 GEAVANGDDIADWDGAANLVDAAVETFGGLDVLVNNAGI 102
>gnl|CDD|235545 PRK05650, PRK05650, short chain dehydrogenase; Provisional.
Length = 270
Score = 52.0 bits (125), Expect = 1e-07
Identities = 48/197 (24%), Positives = 82/197 (41%), Gaps = 17/197 (8%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFD 120
ITGA SG+G A A+ + L + G+E L+ L++ DG ++ +
Sbjct: 5 ITGAASGLGRAIALRWAREGWRLALADVNEEGGEETLKLLREAGGDGFYQ--RCDVRDYS 62
Query: 121 SIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLIER 180
+ A+ +++ I V++NNAGV+ + + E ++ IN +G
Sbjct: 63 QLTALAQACEEKWGGIDVIVNNAGVASGGFFEELSLEDWDWQIAINLMG----------- 111
Query: 181 IQKVVIVGSSLMDR-GTIDFDNLNGEKGFVQ-KGHSNPAYCNSKLMNYYFGAELYLKYAD 238
+ K L R + N+ G +Q S+ Y +K L ++ AD
Sbjct: 112 VVKGCKAFLPLFKRQKSGRIVNIASMAGLMQGPAMSS--YNVAKAGVVALSETLLVELAD 169
Query: 239 KGVDVSVVCPGWCYTNL 255
+ V VVCP + TNL
Sbjct: 170 DEIGVHVVCPSFFQTNL 186
Score = 29.2 bits (66), Expect = 3.3
Identities = 11/24 (45%), Positives = 15/24 (62%)
Query: 324 LYLKYADKGVDVCVVCPGWCYTNL 347
L ++ AD + V VVCP + TNL
Sbjct: 163 LLVELADDEIGVHVVCPSFFQTNL 186
>gnl|CDD|235933 PRK07097, PRK07097, gluconate 5-dehydrogenase; Provisional.
Length = 265
Score = 51.6 bits (124), Expect = 2e-07
Identities = 37/147 (25%), Positives = 71/147 (48%), Gaps = 14/147 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQI--VL 111
++GK+ +ITGA+ GIG+ AK AK AT+V + QE ++K ++ I
Sbjct: 8 LKGKIALITGASYGIGFAIAKAYAKAGATIVFNDIN----QELVDKGLAAYRELGIEAHG 63
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVG 169
++ D ++ + K+ I +L+NNAG+ +P+ E + E + I+
Sbjct: 64 YVCDVTDEDGVQAMVSQIEKEVGVIDILVNNAGIIKRIPMLE--MSAEDFRQVIDIDLNA 121
Query: 170 HFLLTNL----LIERIQKVVIVGSSLM 192
F+++ +I++ +I S+M
Sbjct: 122 PFIVSKAVIPSMIKKGHGKIINICSMM 148
>gnl|CDD|183797 PRK12859, PRK12859, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 256
Score = 50.9 bits (122), Expect = 2e-07
Identities = 40/143 (27%), Positives = 65/143 (45%), Gaps = 11/143 (7%)
Query: 52 KPMEGKVCIITGAN--SGIGYETAKELAKLKATVVLGC-----RSMIRGQEALE--KLKK 102
++ KV ++TG + GIG KELA+ A + + M G + E +L++
Sbjct: 2 NQLKNKVAVVTGVSRLDGIGAAICKELAEAGADIFFTYWTAYDKEMPWGVDQDEQIQLQE 61
Query: 103 EV-QDGQIV-LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYE 160
E+ ++G V MEL+L D+ K V +Q H+L+NNA S T E +
Sbjct: 62 ELLKNGVKVSSMELDLTQNDAPKELLNKVTEQLGYPHILVNNAAYSTNNDFSNLTAEELD 121
Query: 161 VHFGINHVGHFLLTNLLIERIQK 183
H+ +N LL++ K
Sbjct: 122 KHYMVNVRATTLLSSQFARGFDK 144
>gnl|CDD|180617 PRK06550, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 235
Score = 50.7 bits (122), Expect = 3e-07
Identities = 51/196 (26%), Positives = 76/196 (38%), Gaps = 29/196 (14%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
K +ITGA SGIG A+ A V ++K K G ++L
Sbjct: 4 MTKTVLITGAASGIGLAQARAFLAQGAQVY-----------GVDKQDKPDLSGNFHFLQL 52
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEG-YEVHFGINHVGHFLL 173
+L+ D ++ V P + +L N AG+ K L T ++ F N FLL
Sbjct: 53 DLS--DDLEPLFDWV----PSVDILCNTAGILDDYKPLLDTSLEEWQHIFDTNLTSTFLL 106
Query: 174 TNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELY 233
T + + +++R + N+ FV G AY SK F +L
Sbjct: 107 TRAYLPQ----------MLERKSGIIINMCSIASFVAGG-GGAAYTASKHALAGFTKQLA 155
Query: 234 LKYADKGVDVSVVCPG 249
L YA G+ V + PG
Sbjct: 156 LDYAKDGIQVFGIAPG 171
>gnl|CDD|235853 PRK06701, PRK06701, short chain dehydrogenase; Provisional.
Length = 290
Score = 51.2 bits (123), Expect = 3e-07
Identities = 54/222 (24%), Positives = 100/222 (45%), Gaps = 40/222 (18%)
Query: 49 PFYK---PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV- 104
P YK ++GKV +ITG +SGIG A AK A + + + E + K+ V
Sbjct: 36 PNYKGSGKLKGKVALITGGDSGIGRAVAVLFAKEGADIAI---VYLDEHEDANETKQRVE 92
Query: 105 QDG-QIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLT--TKEGYEV 161
++G + +L+ +++ K+ + +++ ++ +L+NNA P ++ L T E +
Sbjct: 93 KEGVKCLLIPGDVSDEAFCKDAVEETVRELGRLDILVNNAAFQYP-QQSLEDITAEQLDK 151
Query: 162 HFGINHVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNS 221
F N +F +T + +++ GS++++ G+I G +G N
Sbjct: 152 TFKTNIYSYFHMTKAALPHLKQ----GSAIINTGSI-----TGYEG------------NE 190
Query: 222 KLMNYY--------FGAELYLKYADKGVDVSVVCPGWCYTNL 255
L++Y F L KG+ V+ V PG +T L
Sbjct: 191 TLIDYSATKGAIHAFTRSLAQSLVQKGIRVNAVAPGPIWTPL 232
>gnl|CDD|236110 PRK07831, PRK07831, short chain dehydrogenase; Provisional.
Length = 262
Score = 50.8 bits (122), Expect = 4e-07
Identities = 29/106 (27%), Positives = 52/106 (49%), Gaps = 5/106 (4%)
Query: 44 KLKASPFYKP----MEGKVCIITGA-NSGIGYETAKELAKLKATVVLGCRSMIRGQEALE 98
L +P Y P + GKV ++T A +GIG TA+ + A VV+ R E +
Sbjct: 1 NLSTAPKYVPGHGLLAGKVVLVTAAAGTGIGSATARRALEEGARVVISDIHERRLGETAD 60
Query: 99 KLKKEVQDGQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
+L E+ G++ + ++ S + +++ ++ VL+NNAG
Sbjct: 61 ELAAELGLGRVEAVVCDVTSEAQVDALIDAAVERLGRLDVLVNNAG 106
>gnl|CDD|235693 PRK06077, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 252
Score = 50.5 bits (121), Expect = 4e-07
Identities = 25/94 (26%), Positives = 52/94 (55%), Gaps = 5/94 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++ KV ++TG+ GIG A LAK + VV+ + + E + + K V++ G+ +
Sbjct: 4 LKDKVVVVTGSGRGIGRAIAVRLAKEGSLVVVNAK---KRAEEMNETLKMVKENGGEGIG 60
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+ ++++ + + AK + +Y +L+NNAG+
Sbjct: 61 VLADVSTREGCETLAKATIDRYGVADILVNNAGL 94
>gnl|CDD|236145 PRK08063, PRK08063, enoyl-(acyl carrier protein) reductase;
Provisional.
Length = 250
Score = 50.5 bits (121), Expect = 4e-07
Identities = 26/103 (25%), Positives = 53/103 (51%), Gaps = 7/103 (6%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIV 110
GKV ++TG++ GIG A LA+ + + + R ++A E+ +E++ + +
Sbjct: 1 VFSGKVALVTGSSRGIGKAIALRLAEEGYDIAV---NYARSRKAAEETAEEIEALGRKAL 57
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNA--GVSVPIKE 151
++ N+ + IK + +++ ++ V +NNA GV P E
Sbjct: 58 AVKANVGDVEKIKEMFAQIDEEFGRLDVFVNNAASGVLRPAME 100
>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 = 50.3 bits (121), Expect = 4e-07
Identities = 21/87 (24%), Positives = 41/87 (47%), Gaps = 4/87 (4%)
Query: 56 GKVCIITGA--NSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
GK +ITG + I + AK L + A + + + +EKL + + + +VL
Sbjct: 1 GKRILITGIANDRSIAWGIAKALHEAGAELAFTYQPEALRKR-VEKLAERLGESALVL-P 58
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLI 140
++++ + IK V K + K+ L+
Sbjct: 59 CDVSNDEEIKELFAEVKKDWGKLDGLV 85
>gnl|CDD|183719 PRK12747, PRK12747, short chain dehydrogenase; Provisional.
Length = 252
Score = 50.5 bits (120), Expect = 5e-07
Identities = 49/213 (23%), Positives = 93/213 (43%), Gaps = 30/213 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GKV ++TGA+ GIG AK LA A V + + R +EA E+ E+Q G
Sbjct: 2 LKGKVALVTGASRGIGRAIAKRLANDGALVAIHYGN--RKEEA-EETVYEIQSNGGSAFS 58
Query: 112 MELNLASFDSIKNFAKNVMKQY------PKIHVLINNAGVSVPIKEKLTTKEGYEVHFGI 165
+ NL S ++ ++ + K +LINNAG+ + TT++ ++ +
Sbjct: 59 IGANLESLHGVEALYSSLDNELQNRTGSTKFDILINNAGIGPGAFIEETTEQFFDRMVSV 118
Query: 166 NHVGHFLLTNLLIERIQ---KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
N F + + R++ +++ + S+ DF + KG +
Sbjct: 119 NAKAPFFIIQQALSRLRDNSRIINISSAATRISLPDFIAYSMTKGAINT----------- 167
Query: 223 LMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
M + +L +G+ V+ + PG+ T++
Sbjct: 168 -MTFTLAKQL----GARGITVNAILPGFIKTDM 195
>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 = 49.6 bits (119), Expect = 6e-07
Identities = 31/120 (25%), Positives = 55/120 (45%), Gaps = 5/120 (4%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQI--VLMEL 114
V ++TGA IG A+ LA VV+ R + ++LK E+ + VL++
Sbjct: 1 AVALVTGAAKRIGRAIAEALAAEGYRVVVHYN---RSEAEAQRLKDELNALRNSAVLVQA 57
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLT 174
+L+ F + + + + + VL+NNA P +++ + FGIN +LL
Sbjct: 58 DLSDFAACADLVAAAFRAFGRCDVLVNNASAFYPTPLGQGSEDAWAELFGINLKAPYLLI 117
>gnl|CDD|236357 PRK08945, PRK08945, putative oxoacyl-(acyl carrier protein)
reductase; Provisional.
Length = 247
Score = 49.5 bits (119), Expect = 7e-07
Identities = 28/98 (28%), Positives = 54/98 (55%), Gaps = 11/98 (11%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVL-GCRSMIRGQEALEKLKKEV-QDGQ--- 108
++ ++ ++TGA GIG E A A+ ATV+L G R +E LE + E+ G
Sbjct: 10 LKDRIILVTGAGDGIGREAALTYARHGATVILLG-----RTEEKLEAVYDEIEAAGGPQP 64
Query: 109 -IVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
I+ ++L A+ + + A + +Q+ ++ +++NAG+
Sbjct: 65 AIIPLDLLTATPQNYQQLADTIEEQFGRLDGVLHNAGL 102
>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 = 49.5 bits (118), Expect = 7e-07
Identities = 24/101 (23%), Positives = 54/101 (53%), Gaps = 9/101 (8%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-----GQ 108
+ ++ ++TGA+ GIG E A A+ ATV+L + R +E L ++ + + Q
Sbjct: 2 LNDRIILVTGASDGIGREAALTYARYGATVIL----LGRNEEKLRQVADHINEEGGRQPQ 57
Query: 109 IVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPI 149
+++L + ++ + A+ + YP++ +++NAG+ +
Sbjct: 58 WFILDLLTCTSENCQQLAQRIAVNYPRLDGVLHNAGLLGDV 98
>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 = 49.4 bits (118), Expect = 7e-07
Identities = 44/197 (22%), Positives = 78/197 (39%), Gaps = 25/197 (12%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
+GKV +IT A GIG A A+ A V+ + I EKLK+ + I L
Sbjct: 1 DGKVALITAAAQGIGRAIALAFAREGANVIA---TDINE----EKLKELERGPGITTRVL 53
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEG-YEVHFGINHVGHFLL 173
++ + + AK +I VL N AG V L ++ ++ +N +L+
Sbjct: 54 DVTDKEQVAALAKEE----GRIDVLFNCAGF-VHHGSILDCEDDDWDFAMNLNVRSMYLM 108
Query: 174 TNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP-AYCNSKLMNYYFGAEL 232
++ + ++ R N++ + KG N Y +K +
Sbjct: 109 IKAVLPK----------MLARKDGSIINMSSVASSI-KGVPNRFVYSTTKAAVIGLTKSV 157
Query: 233 YLKYADKGVDVSVVCPG 249
+A +G+ + +CPG
Sbjct: 158 AADFAQQGIRCNAICPG 174
>gnl|CDD|183778 PRK12829, PRK12829, short chain dehydrogenase; Provisional.
Length = 264
Score = 49.7 bits (119), Expect = 7e-07
Identities = 35/145 (24%), Positives = 64/145 (44%), Gaps = 11/145 (7%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
KP++G ++TG SGIG A+ A+ A V + S + AL + ++
Sbjct: 7 KPLDGLRVLVTGGASGIGRAIAEAFAEAGARVHVCDVS----EAALAATAARLPGAKVTA 62
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK--EKLTTKEGYEVHFGINHVG 169
++A ++ ++++ + VL+NNAG++ P +++ T E +E +N G
Sbjct: 63 TVADVADPAQVERVFDTAVERFGGLDVLVNNAGIAGPTGGIDEI-TPEQWEQTLAVNLNG 121
Query: 170 HFLLTN----LLIERIQKVVIVGSS 190
F LL VI+ S
Sbjct: 122 QFYFARAAVPLLKASGHGGVIIALS 146
>gnl|CDD|181518 PRK08643, PRK08643, acetoin reductase; Validated.
Length = 256
Score = 49.7 bits (119), Expect = 8e-07
Identities = 51/201 (25%), Positives = 87/201 (43%), Gaps = 24/201 (11%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
KV ++TGA GIG+ AK L + V + + Q A +KL K+ G+ + ++
Sbjct: 1 MSKVALVTGAGQGIGFAIAKRLVEDGFKVAIVDYNEETAQAAADKLSKD--GGKAIAVKA 58
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHFL 172
+++ D + + V+ + ++V++NNAGV + PI+ T+E ++ + IN G
Sbjct: 59 DVSDRDQVFAAVRQVVDTFGDLNVVVNNAGVAPTTPIET--ITEEQFDKVYNINVGG--- 113
Query: 173 LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH-SNPA---YCNSKLMNYYF 228
+I IQ L G I +N Q G NP Y ++K
Sbjct: 114 ----VIWGIQAAQEAFKKLGHGGKI----INATS---QAGVVGNPELAVYSSTKFAVRGL 162
Query: 229 GAELYLKYADKGVDVSVVCPG 249
A +G+ V+ PG
Sbjct: 163 TQTAARDLASEGITVNAYAPG 183
>gnl|CDD|180802 PRK07035, PRK07035, short chain dehydrogenase; Provisional.
Length = 252
Score = 49.6 bits (119), Expect = 8e-07
Identities = 21/93 (22%), Positives = 48/93 (51%), Gaps = 6/93 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
+ GK+ ++TGA+ GIG AK LA+ A V++ R + + + + + G+
Sbjct: 6 LTGKIALVTGASRGIGEAIAKLLAQQGAHVIVSSRKL----DGCQAVADAIVAAGGKAEA 61
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
+ ++ + I ++ +++ ++ +L+NNA
Sbjct: 62 LACHIGEMEQIDALFAHIRERHGRLDILVNNAA 94
>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 = 49.5 bits (118), Expect = 9e-07
Identities = 33/145 (22%), Positives = 65/145 (44%), Gaps = 10/145 (6%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
P+ KV ++T + GIG A+ LA+ A VV+ R A+ L+ E +
Sbjct: 6 DPLANKVALVTASTDGIGLAIARRLAQDGAHVVVSSRKQQNVDRAVATLQGE--GLSVTG 63
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL--TTKEGYEVHFGINHVG 169
++ + + + + + +L++NA V+ P + +T+E ++ +N
Sbjct: 64 TVCHVGKAEDRERLVATAVNLHGGVDILVSNAAVN-PFFGNILDSTEEVWDKILDVNVKA 122
Query: 170 HFLLTNLLIERIQK-----VVIVGS 189
L+T ++ ++K VVIV S
Sbjct: 123 TALMTKAVVPEMEKRGGGSVVIVSS 147
>gnl|CDD|181668 PRK09135, PRK09135, pteridine reductase; Provisional.
Length = 249
Score = 49.2 bits (118), Expect = 1e-06
Identities = 37/175 (21%), Positives = 66/175 (37%), Gaps = 20/175 (11%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD---GQ 108
KV +ITG IG A+ L V + R + L E+ G
Sbjct: 2 MTDSAKVALITGGARRIGAAIARTLHAAGYRVAIHYH---RSAAEADALAAELNALRPGS 58
Query: 109 IVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHV 168
++ +L D++ + + ++ L+NNA P T+ ++ F N
Sbjct: 59 AAALQADLLDPDALPELVAACVAAFGRLDALVNNASSFYPTPLGSITEAQWDDLFASNLK 118
Query: 169 GHFLLTNLLIERIQKVVIVGSSLMDRGTI-DFDNLNGEKGFVQKGHSNPAYCNSK 222
F L+ +++K RG I + +++ E+ KG+ P YC +K
Sbjct: 119 APFFLSQAAAPQLRKQ---------RGAIVNITDIHAERPL--KGY--PVYCAAK 160
>gnl|CDD|237220 PRK12828, PRK12828, short chain dehydrogenase; Provisional.
Length = 239
Score = 49.0 bits (117), Expect = 1e-06
Identities = 43/201 (21%), Positives = 75/201 (37%), Gaps = 25/201 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GKV ITG G+G TA LA A V L + RG L + V + +
Sbjct: 5 LQGKVVAITGGFGGLGRATAAWLAARGARVAL----IGRGAAPLSQTLPGVPADALRIGG 60
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF-- 171
++L + + V +Q+ ++ L+N AG V + ++ +G+N
Sbjct: 61 IDLVDPQAARRAVDEVNRQFGRLDALVNIAGAFVWGTIADGDADTWDRMYGVNVKTTLNA 120
Query: 172 ---LLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
L L ++V +G+ ++ G AY +K
Sbjct: 121 SKAALPALTASGGGRIVNIGAG----------------AALKAGPGMGAYAAAKAGVARL 164
Query: 229 GAELYLKYADKGVDVSVVCPG 249
L + D+G+ V+ V P
Sbjct: 165 TEALAAELLDRGITVNAVLPS 185
>gnl|CDD|236399 PRK09186, PRK09186, flagellin modification protein A; Provisional.
Length = 256
Score = 48.8 bits (117), Expect = 1e-06
Identities = 26/90 (28%), Positives = 44/90 (48%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++GK +ITGA IG K + + V+ E LE L KE + ++ L+E
Sbjct: 2 LKGKTILITGAGGLIGSALVKAILEAGGIVIAADIDKEALNELLESLGKEFKSKKLSLVE 61
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNA 143
L++ +S++ F ++Y KI +N A
Sbjct: 62 LDITDQESLEEFLSKSAEKYGKIDGAVNCA 91
>gnl|CDD|236207 PRK08261, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 450
Score = 49.4 bits (119), Expect = 2e-06
Identities = 28/94 (29%), Positives = 53/94 (56%), Gaps = 5/94 (5%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+P+ GKV ++TGA GIG A+ LA+ A VV C + EAL + V G
Sbjct: 206 RPLAGKVALVTGAARGIGAAIAEVLARDGAHVV--CLDVPAAGEALAAVANRV-GG--TA 260
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+ L++ + D+ A+++ +++ + ++++NAG+
Sbjct: 261 LALDITAPDAPARIAEHLAERHGGLDIVVHNAGI 294
>gnl|CDD|235703 PRK06125, PRK06125, short chain dehydrogenase; Provisional.
Length = 259
Score = 47.7 bits (114), Expect = 3e-06
Identities = 27/92 (29%), Positives = 45/92 (48%), Gaps = 11/92 (11%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ---DGQIVLM 112
GK +ITGA+ GIG A+ A + L R +ALE L +++ + +
Sbjct: 7 GKRVLITGASKGIGAAAAEAFAAEGCHLHLVARD----ADALEALAADLRAAHGVDVAVH 62
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
L+L+S ++ + A + I +L+NNAG
Sbjct: 63 ALDLSSPEAREQLA----AEAGDIDILVNNAG 90
>gnl|CDD|171821 PRK12937, PRK12937, short chain dehydrogenase; Provisional.
Length = 245
Score = 47.8 bits (114), Expect = 3e-06
Identities = 29/120 (24%), Positives = 50/120 (41%), Gaps = 1/120 (0%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ KV I+TGA+ GIG A+ LA V + + L + E G+ + +
Sbjct: 2 TLSNKVAIVTGASRGIGAAIARRLAADGFAVAVNYAGSAAAADELVA-EIEAAGGRAIAV 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFL 172
+ ++A ++ + +I VL+NNAGV E ++ N G F+
Sbjct: 61 QADVADAAAVTRLFDAAETAFGRIDVLVNNAGVMPLGTIADFDLEDFDRTIATNLRGAFV 120
>gnl|CDD|183489 PRK12384, PRK12384, sorbitol-6-phosphate dehydrogenase;
Provisional.
Length = 259
Score = 47.7 bits (114), Expect = 3e-06
Identities = 37/201 (18%), Positives = 76/201 (37%), Gaps = 22/201 (10%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
+V ++ G +G LA+ V + + + +++ E +G
Sbjct: 1 MNQVAVVIGGGQTLGAFLCHGLAEEGYRVAVADINSEKAANVAQEINAEYGEGMAYGFGA 60
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHFL 172
+ S S+ ++ V + + ++ +L+ NAG+ + I + ++ +N VG+FL
Sbjct: 61 DATSEQSVLALSRGVDEIFGRVDLLVYNAGIAKAAFITD--FQLGDFDRSLQVNLVGYFL 118
Query: 173 ----LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYF 228
+ L+I + I+ +N + G V H N Y +K
Sbjct: 119 CAREFSRLMIRDGIQGRII-------------QINSKSGKVGSKH-NSGYSAAKFGGVGL 164
Query: 229 GAELYLKYADKGVDVSVVCPG 249
L L A+ G+ V + G
Sbjct: 165 TQSLALDLAEYGITVHSLMLG 185
>gnl|CDD|180604 PRK06523, PRK06523, short chain dehydrogenase; Provisional.
Length = 260
Score = 47.2 bits (113), Expect = 5e-06
Identities = 48/220 (21%), Positives = 79/220 (35%), Gaps = 49/220 (22%)
Query: 49 PFYKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQ 108
F+ + GK ++TG GIG T L + A VV RS +
Sbjct: 2 SFFLELAGKRALVTGGTKGIGAATVARLLEAGARVVTTARSR-----------PDDLPEG 50
Query: 109 IVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP-------IKEKLTTKEGYEV 161
+ + +L + + A+ V+++ + +L++ G S + ++ E
Sbjct: 51 VEFVAADLTTAEGCAAVARAVLERLGGVDILVHVLGGSSAPAGGFAALTDEEWQDE---- 106
Query: 162 HFGINHVGHFLLTNLL----IERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPA 217
+N + L L I R V+I +S+ R + S A
Sbjct: 107 -LNLNLLAAVRLDRALLPGMIARGSGVIIHVTSIQRRLPL--------------PESTTA 151
Query: 218 YCNSK--LMNYYFG--AELYLKYADKGVDVSVVCPGWCYT 253
Y +K L Y E+ A KGV V+ V PGW T
Sbjct: 152 YAAAKAALSTYSKSLSKEV----APKGVRVNTVSPGWIET 187
>gnl|CDD|169556 PRK08703, PRK08703, short chain dehydrogenase; Provisional.
Length = 239
Score = 47.2 bits (112), Expect = 5e-06
Identities = 39/153 (25%), Positives = 67/153 (43%), Gaps = 20/153 (13%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE-VQDGQ-- 108
+ K ++TGA+ G+G + AK A ATV+L + R Q+ LEK+ V+ G
Sbjct: 2 ATLSDKTILVTGASQGLGEQVAKAYAAAGATVIL----VARHQKKLEKVYDAIVEAGHPE 57
Query: 109 --IVLMELNLASFDSIKNFAKNVMKQYP-KIHVLINNAG---VSVPIKEKLTTKEGYEVH 162
+ +L A + FA + + K+ +++ AG P+ + T +
Sbjct: 58 PFAIRFDLMSAEEKEFEQFAATIAEATQGKLDGIVHCAGYFYALSPLDFQ--TVAEWVNQ 115
Query: 163 FGINHVGHFLLTNLLIERIQK-----VVIVGSS 190
+ IN V LT L +++ V+ VG S
Sbjct: 116 YRINTVAPMGLTRALFPLLKQSPDASVIFVGES 148
>gnl|CDD|183772 PRK12823, benD, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate
dehydrogenase; Provisional.
Length = 260
Score = 47.2 bits (113), Expect = 5e-06
Identities = 28/92 (30%), Positives = 46/92 (50%), Gaps = 7/92 (7%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLM 112
GKV ++TGA GIG A A A VVL RS E + ++ E++ G+ + +
Sbjct: 7 AGKVVVVTGAAQGIGRGVALRAAAEGARVVLVDRS-----ELVHEVAAELRAAGGEALAL 61
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
+L ++ + ++ + +I VLINN G
Sbjct: 62 TADLETYAGAQAAMAAAVEAFGRIDVLINNVG 93
>gnl|CDD|222222 pfam13561, adh_short_C2, Enoyl-(Acyl carrier protein) reductase.
Length = 239
Score = 46.8 bits (112), Expect = 5e-06
Identities = 22/85 (25%), Positives = 40/85 (47%), Gaps = 3/85 (3%)
Query: 66 SGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFDSIKNF 125
+ I + AK A+ A VVL A+++L KE+ V + L++ S + I
Sbjct: 6 NSIAWAIAKAAAEEGAEVVLTTWPPALRMGAVDELAKEL--PADV-IPLDVTSDEDIDEL 62
Query: 126 AKNVMKQYPKIHVLINNAGVSVPIK 150
+ V + KI L+++ +S I+
Sbjct: 63 FEKVKEDGGKIDFLVHSIAMSPEIR 87
>gnl|CDD|181126 PRK07806, PRK07806, short chain dehydrogenase; Provisional.
Length = 248
Score = 46.6 bits (111), Expect = 6e-06
Identities = 24/90 (26%), Positives = 43/90 (47%), Gaps = 5/90 (5%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLME 113
GK ++TG++ GIG +TAK LA A VV+ R K+ E++ G+ +
Sbjct: 6 GKTALVTGSSRGIGADTAKILAGAGAHVVVNYRQ---KAPRANKVVAEIEAAGGRASAVG 62
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNA 143
+L +S+ +++ + L+ NA
Sbjct: 63 ADLTDEESVAALMDTAREEFGGLDALVLNA 92
>gnl|CDD|235910 PRK07024, PRK07024, short chain dehydrogenase; Provisional.
Length = 257
Score = 46.8 bits (112), Expect = 7e-06
Identities = 30/95 (31%), Positives = 49/95 (51%), Gaps = 6/95 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ-DGQIVLM 112
M KV ITGA+SGIG A+E A+ AT+ L R R +AL+ + ++ +
Sbjct: 1 MPLKV-FITGASSGIGQALAREYARQGATLGLVAR---RT-DALQAFAARLPKAARVSVY 55
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
++ D++ A + + + V+I NAG+SV
Sbjct: 56 AADVRDADALAAAAADFIAAHGLPDVVIANAGISV 90
>gnl|CDD|181131 PRK07814, PRK07814, short chain dehydrogenase; Provisional.
Length = 263
Score = 46.7 bits (111), Expect = 7e-06
Identities = 39/176 (22%), Positives = 79/176 (44%), Gaps = 26/176 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG--QIVL 111
++ +V ++TGA G+G A A+ A V++ R+ + L+++ ++++ + +
Sbjct: 8 LDDQVAVVTGAGRGLGAAIALAFAEAGADVLIAART----ESQLDEVAEQIRAAGRRAHV 63
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHF 171
+ +LA ++ A ++ + ++ +++NN G ++P T+ + F N
Sbjct: 64 VAADLAHPEATAGLAGQAVEAFGRLDIVVNNVGGTMPNPLLSTSTKDLADAFTFNVATAH 123
Query: 172 LLTN----LLIERI-QKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
LT L++E VI SS M R L G +GF AY +K
Sbjct: 124 ALTVAAVPLMLEHSGGGSVINISSTMGR-------LAG-RGFA-------AYGTAK 164
>gnl|CDD|171531 PRK12481, PRK12481, 2-deoxy-D-gluconate 3-dehydrogenase;
Provisional.
Length = 251
Score = 46.4 bits (110), Expect = 8e-06
Identities = 48/210 (22%), Positives = 85/210 (40%), Gaps = 32/210 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVV-LGCRSMIRGQEALEKLKKEVQDGQIVLM 112
+ GKV IITG N+G+G A LAK A +V +G Q +E L ++ +
Sbjct: 6 LNGKVAIITGCNTGLGQGMAIGLAKAGADIVGVGVAEAPETQAQVEALGRKFH-----FI 60
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLT--TKEGYEVHFGINHVGH 170
+L I + ++ I +LINNAG+ ++ L + ++ IN
Sbjct: 61 TADLIQQKDIDSIVSQAVEVMGHIDILINNAGIIR--RQDLLEFGNKDWDDVININQKTV 118
Query: 171 FLLTNLLIERIQ------KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLM 224
F L+ + ++ K++ + S L +G I P+Y SK
Sbjct: 119 FFLSQAVAKQFVKQGNGGKIINIASMLSFQGGIRV----------------PSYTASKSA 162
Query: 225 NYYFGAELYLKYADKGVDVSVVCPGWCYTN 254
L + + ++V+ + PG+ T+
Sbjct: 163 VMGLTRALATELSQYNINVNAIAPGYMATD 192
>gnl|CDD|181225 PRK08085, PRK08085, gluconate 5-dehydrogenase; Provisional.
Length = 254
Score = 46.7 bits (111), Expect = 8e-06
Identities = 27/92 (29%), Positives = 48/92 (52%), Gaps = 2/92 (2%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GK +ITG+ GIG+ A LA+ A +++ + R + A+ KL++E +
Sbjct: 7 LAGKNILITGSAQGIGFLLATGLAEYGAEIIINDITAERAELAVAKLRQE--GIKAHAAP 64
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
N+ ++ +++ K I VLINNAG+
Sbjct: 65 FNVTHKQEVEAAIEHIEKDIGPIDVLINNAGI 96
>gnl|CDD|180446 PRK06180, PRK06180, short chain dehydrogenase; Provisional.
Length = 277
Score = 46.4 bits (111), Expect = 9e-06
Identities = 25/91 (27%), Positives = 37/91 (40%), Gaps = 5/91 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
K +ITG +SG G A+ VV RS + E L + +
Sbjct: 2 SSMKTWLITGVSSGFGRALAQAALAAGHRVVGTVRS-EAARADFEALHP----DRALARL 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
L++ FD+I + + I VL+NNAG
Sbjct: 57 LDVTDFDAIDAVVADAEATFGPIDVLVNNAG 87
>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 = 46.3 bits (110), Expect = 9e-06
Identities = 54/198 (27%), Positives = 80/198 (40%), Gaps = 20/198 (10%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
I+TGA GIG A+ L + ATV+ + L + + L L++A
Sbjct: 2 IVTGAAQGIGRAVARHLLQAGATVI--------ALD-LPFVLLLEYGDPLRLTPLDVADA 52
Query: 120 DSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLIE 179
+++ ++ ++ I L+N AGV P + E +E F +N G F NLL
Sbjct: 53 AAVREVCSRLLAEHGPIDALVNCAGVLRPGATDPLSTEDWEQTFAVNVTGVF---NLL-- 107
Query: 180 RIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADK 239
Q V + DR T + V + S AY SK L L+ A
Sbjct: 108 --QAVA---PHMKDRRTGAIVTVASNAAHVPRI-SMAAYGASKAALASLSKCLGLELAPY 161
Query: 240 GVDVSVVCPGWCYTNLFR 257
GV +VV PG T + R
Sbjct: 162 GVRCNVVSPGSTDTAMQR 179
>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 = 46.0 bits (109), Expect = 1e-05
Identities = 49/201 (24%), Positives = 81/201 (40%), Gaps = 30/201 (14%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
GKV I+TG GIG + + + VV RG + E + + +
Sbjct: 1 GKVAIVTGGGHGIGKQICLDFLEAGDKVVFADIDEERGADFAEAEGPNL-----FFVHGD 55
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV-SVPIKEKLTTKEGYEVHFGINHVGHFLLT 174
+A +K ++++ +I VL+NNA S I L +E ++ +N G + L+
Sbjct: 56 VADETLVKFVVYAMLEKLGRIDVLVNNAARGSKGILSSLLLEE-WDRILSVNLTGPYELS 114
Query: 175 NLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYL 234
+ + K ++G I N+ + F Q + AY SK G + L
Sbjct: 115 RYCRDELIK---------NKGRI--INIASTRAF-QSEPDSEAYAASK------GGLVAL 156
Query: 235 KYA---DKGVDVSVVC--PGW 250
+A G D+ V C PGW
Sbjct: 157 THALAMSLGPDIRVNCISPGW 177
>gnl|CDD|235702 PRK06124, PRK06124, gluconate 5-dehydrogenase; Provisional.
Length = 256
Score = 45.9 bits (109), Expect = 1e-05
Identities = 25/108 (23%), Positives = 49/108 (45%), Gaps = 24/108 (22%)
Query: 47 ASPFYKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKK---- 102
F + G+V ++TG+ G+G+E A+ LA A V++ R+ + A+ L+
Sbjct: 4 LQRF--SLAGQVALVTGSARGLGFEIARALAGAGAHVLVNGRNAATLEAAVAALRAAGGA 61
Query: 103 ------EVQDGQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
++ D + V A+F I ++ ++ +L+NN G
Sbjct: 62 AEALAFDIADEEAV-----AAAFARI-------DAEHGRLDILVNNVG 97
>gnl|CDD|235739 PRK06200, PRK06200, 2,3-dihydroxy-2,3-dihydrophenylpropionate
dehydrogenase; Provisional.
Length = 263
Score = 45.7 bits (109), Expect = 2e-05
Identities = 29/128 (22%), Positives = 57/128 (44%), Gaps = 18/128 (14%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCR--SMIRGQEALEKLKKEVQDGQIVL 111
+ G+V +ITG SGIG A ++ + G R + R E L L++ D +++
Sbjct: 4 LHGQVALITGGGSGIG------RALVERFLAEGARVAVLERSAEKLASLRQRFGDH-VLV 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV---SVPIK----EKLTTKEGYEVHFG 164
+E ++ S+ + + + K+ + NAG+ + + E L ++ F
Sbjct: 57 VEGDVTSYADNQRAVDQTVDAFGKLDCFVGNAGIWDYNTSLVDIPAETLD--TAFDEIFN 114
Query: 165 INHVGHFL 172
+N G+ L
Sbjct: 115 VNVKGYLL 122
>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 = 45.6 bits (108), Expect = 2e-05
Identities = 32/131 (24%), Positives = 59/131 (45%), Gaps = 10/131 (7%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+EGKV I+TGA +GIG A LA+ A VV+ Q + ++ G + +
Sbjct: 1 LEGKVAIVTGAGAGIGAACAARLAREGARVVVADIDGGAAQAVVAQI-----AGGALALR 55
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV---SVPIKEKLTTKEGYEVHFGINHVGH 170
+++ + + ++++ + +L+NNAG + I + T ++ IN G
Sbjct: 56 VDVTDEQQVAALFERAVEEFGGLDLLVNNAGAMHLTPAIID--TDLAVWDQTMAINLRGT 113
Query: 171 FLLTNLLIERI 181
FL R+
Sbjct: 114 FLCCRHAAPRM 124
>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 = 45.3 bits (107), Expect = 2e-05
Identities = 29/96 (30%), Positives = 51/96 (53%), Gaps = 10/96 (10%)
Query: 58 VCIITGANSGIGYETAKELAK-LKA---TVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
VC++TGA+ G G A+ELAK LK+ +VL R+ ++ ++ E ++V +
Sbjct: 2 VCLVTGASRGFGRTIAQELAKCLKSPGSVLVLSARNDEALRQLKAEIGAERSGLRVVRVS 61
Query: 114 LNLASFDSIKNFAKNVM-----KQYPKIHVLINNAG 144
L+L + ++ K + K ++ +LINNAG
Sbjct: 62 LDLGAEAGLEQLLKALRELPRPKGLQRL-LLINNAG 96
>gnl|CDD|181762 PRK09291, PRK09291, short chain dehydrogenase; Provisional.
Length = 257
Score = 45.0 bits (107), Expect = 2e-05
Identities = 53/212 (25%), Positives = 81/212 (38%), Gaps = 47/212 (22%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL--ME 113
K +ITGA SG G E A LA+ V+ G + I Q + L+ E + L +
Sbjct: 2 SKTILITGAGSGFGREVALRLARKGHNVIAGVQ--IAPQ--VTALRAEAARRGLALRVEK 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS-------VPIKEKLTTKEGYEVHFGIN 166
L+L A ++ + VL+NNAG+ +P++ +E +E N
Sbjct: 58 LDLTDAIDRAQAA-----EW-DVDVLLNNAGIGEAGAVVDIPVE---LVRELFET----N 104
Query: 167 HVGHFLLTNLLIERI-----QKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNS 221
G LT + ++ KVV SS+ T F AYC S
Sbjct: 105 VFGPLELTQGFVRKMVARGKGKVVFT-SSMAGLITGPFTG---------------AYCAS 148
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPGWCYT 253
K ++ + G+ V+ V PG T
Sbjct: 149 KHALEAIAEAMHAELKPFGIQVATVNPGPYLT 180
>gnl|CDD|236040 PRK07523, PRK07523, gluconate 5-dehydrogenase; Provisional.
Length = 255
Score = 45.1 bits (107), Expect = 2e-05
Identities = 25/91 (27%), Positives = 45/91 (49%), Gaps = 2/91 (2%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ G+ ++TG++ GIGY A+ LA+ A V+L R + A E LK + + +
Sbjct: 8 LTGRRALVTGSSQGIGYALAEGLAQAGAEVILNGRDPAKLAAAAESLKGQGLSAHALAFD 67
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
+ D+++ + I +L+NNAG
Sbjct: 68 VTDH--DAVRAAIDAFEAEIGPIDILVNNAG 96
>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 = 44.8 bits (106), Expect = 2e-05
Identities = 46/200 (23%), Positives = 76/200 (38%), Gaps = 30/200 (15%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
K ++TGA+ GIG TA+ L V + R R A + ++ + ++
Sbjct: 1 KAALVTGASRGIGEATARLLHAEGYRVGICARDEARLAAAAAQEL-----EGVLGLAGDV 55
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHFLLT 174
++ + + + + L+NNAGV V P++E T E + + N G F
Sbjct: 56 RDEADVRRAVDAMEEAFGGLDALVNNAGVGVMKPVEE--LTPEEWRLVLDTNLTGAFYCI 113
Query: 175 NLLIERIQK-----VVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFG 229
+ + + +V VGS L G+ F KG + AY SK
Sbjct: 114 HKAAPALLRRGGGTIVNVGS------------LAGKNAF--KGGA--AYNASKFGLLGLS 157
Query: 230 AELYLKYADKGVDVSVVCPG 249
L + + V V PG
Sbjct: 158 EAAMLDLREANIRVVNVMPG 177
>gnl|CDD|181198 PRK08017, PRK08017, oxidoreductase; Provisional.
Length = 256
Score = 45.1 bits (107), Expect = 3e-05
Identities = 52/201 (25%), Positives = 85/201 (42%), Gaps = 34/201 (16%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
K +ITG +SGIG E A EL + V+ CR + + ++ G + L+L
Sbjct: 3 KSVLITGCSSGIGLEAALELKRRGYRVLAACRK----PDDVARMNSLGFTG----ILLDL 54
Query: 117 ASFDSIKNFAKNVMK-QYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
+S++ A V+ +++ L NNAG V +++ E F N G LT
Sbjct: 55 DDPESVERAADEVIALTDNRLYGLFNNAGFGVYGPLSTISRQQMEQQFSTNFFGTHQLTM 114
Query: 176 LLIERI----QKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP---AYCNSKLMNYYF 228
LL+ + + +++ SS+M G I S P AY SK +
Sbjct: 115 LLLPAMLPHGEGRIVMTSSVM--GLI----------------STPGRGAYAASKYALEAW 156
Query: 229 GAELYLKYADKGVDVSVVCPG 249
L ++ G+ VS++ PG
Sbjct: 157 SDALRMELRHSGIKVSLIEPG 177
>gnl|CDD|180462 PRK06198, PRK06198, short chain dehydrogenase; Provisional.
Length = 260
Score = 45.0 bits (107), Expect = 3e-05
Identities = 29/123 (23%), Positives = 58/123 (47%), Gaps = 9/123 (7%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG--QIVLM 112
+GKV ++TG G+G A+ A+ A ++ C R E E E++ + V +
Sbjct: 5 DGKVALVTGGTQGLGAAIARAFAERGAAGLVICG---RNAEKGEAQAAELEALGAKAVFV 61
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGH 170
+ +L+ + + + + ++ L+N AG++ I + T+ E ++ HF +N
Sbjct: 62 QADLSDVEDCRRVVAAADEAFGRLDALVNAAGLTDRGTILD--TSPELFDRHFAVNVRAP 119
Query: 171 FLL 173
F L
Sbjct: 120 FFL 122
>gnl|CDD|180411 PRK06123, PRK06123, short chain dehydrogenase; Provisional.
Length = 248
Score = 44.8 bits (106), Expect = 3e-05
Identities = 35/129 (27%), Positives = 66/129 (51%), Gaps = 8/129 (6%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMEL 114
KV IITGA+ GIG TA LA + V C + +R ++A E + + ++ G+ + +
Sbjct: 3 KVMIITGASRGIGAATAL-LAAERGYAV--CLNYLRNRDAAEAVVQAIRRQGGEALAVAA 59
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVH--FGINHVGHFL 172
++A + + V ++ ++ L+NNAG+ + + +L + + F N VG FL
Sbjct: 60 DVADEADVLRLFEAVDRELGRLDALVNNAGI-LEAQMRLEQMDAARLTRIFATNVVGSFL 118
Query: 173 LTNLLIERI 181
++R+
Sbjct: 119 CAREAVKRM 127
>gnl|CDD|181120 PRK07792, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 306
Score = 45.2 bits (107), Expect = 3e-05
Identities = 33/127 (25%), Positives = 64/127 (50%), Gaps = 12/127 (9%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLG-CRSMIRGQEALEKLKKEVQDGQIVL 111
+ GKV ++TGA +G+G A LA+L ATVV+ S + + L++++ V
Sbjct: 9 DLSGKVAVVTGAAAGLGRAEALGLARLGATVVVNDVASALDASDVLDEIRAAGAKAVAVA 68
Query: 112 MEL-NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL---TTKEGYEVHFGINH 167
++ A+ D + A + +++NNAG+ ++++ + E ++ ++
Sbjct: 69 GDISQRATADELVATAVG----LGGLDIVVNNAGI---TRDRMLFNMSDEEWDAVIAVHL 121
Query: 168 VGHFLLT 174
GHFLLT
Sbjct: 122 RGHFLLT 128
>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 = 44.7 bits (106), Expect = 3e-05
Identities = 45/209 (21%), Positives = 87/209 (41%), Gaps = 30/209 (14%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIVLMELNLA 117
++TG + GIG A LA+ A VV+ R + ++A ++ E+ G+ V++ +++
Sbjct: 2 LVTGGSRGIGKAIALRLAERGADVVINYR---KSKDAAAEVAAEIEELGGKAVVVRADVS 58
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNA--GVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
++ V +++ ++ VL++NA G P+ E LT ++ N
Sbjct: 59 QPQDVEEMFAAVKERFGRLDVLVSNAAAGAFRPLSE-LTPAH-WDAKMNTNLKALVHCAQ 116
Query: 176 ----LLIERIQ-KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGA 230
L+ ER ++V + S R ++ + K ++ A Y
Sbjct: 117 QAAKLMRERGGGRIVAISSLGSIRALPNYLAVGTAKAALE------ALVR------YLAV 164
Query: 231 ELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
EL +G+ V+ V PG T+ H
Sbjct: 165 EL----GPRGIRVNAVSPGVIDTDALAHF 189
>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 = 45.4 bits (108), Expect = 3e-05
Identities = 28/104 (26%), Positives = 50/104 (48%), Gaps = 6/104 (5%)
Query: 46 KASPFYKPMEGKVCIITGANSGIGYETAKELAKL-KATVVLGCRSMI--RGQEALEKLKK 102
AS KP G V ++TG GIG A+ LA+ A +VL RS + + + L
Sbjct: 197 AASAPLKP--GGVYLVTGGAGGIGRALARALARRYGARLVLLGRSPLPPEEEWKAQTLAA 254
Query: 103 -EVQDGQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
E +++ + ++ +++ + V ++Y I +I+ AGV
Sbjct: 255 LEALGARVLYISADVTDAAAVRRLLEKVRERYGAIDGVIHAAGV 298
>gnl|CDD|181335 PRK08264, PRK08264, short chain dehydrogenase; Validated.
Length = 238
Score = 44.1 bits (105), Expect = 4e-05
Identities = 25/93 (26%), Positives = 45/93 (48%), Gaps = 14/93 (15%)
Query: 54 MEGKVCIITGANSGIGYETAKE-LAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLM 112
++GKV ++TGAN GIG ++ LA+ A V R E + ++V +
Sbjct: 4 IKGKVVLVTGANRGIGRAFVEQLLARGAAKVYAAARD-------PESVTD--LGPRVVPL 54
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+L++ S+ A + + +L+NNAG+
Sbjct: 55 QLDVTDPASVAAAA----EAASDVTILVNNAGI 83
>gnl|CDD|135631 PRK05867, PRK05867, short chain dehydrogenase; Provisional.
Length = 253
Score = 43.9 bits (103), Expect = 5e-05
Identities = 50/209 (23%), Positives = 90/209 (43%), Gaps = 24/209 (11%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ--DGQIVL 111
+ GK +ITGA++GIG A + A V + R + +ALEKL E+ G++V
Sbjct: 7 LHGKRALITGASTGIGKRVALAYVEAGAQVAIAARHL----DALEKLADEIGTSGGKVVP 62
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAG-VSVPIKEKLTTKEGYEVHFGINHVGH 170
+ +++ + + V + I + + NAG ++V + +E + N G
Sbjct: 63 VCCDVSQHQQVTSMLDQVTAELGGIDIAVCNAGIITVTPMLDMPLEEFQRLQ-NTNVTGV 121
Query: 171 FLLTN----LLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNY 226
FL ++++ Q VI+ ++ M I+ Q H YC SK
Sbjct: 122 FLTAQAAAKAMVKQGQGGVIINTASMSGHIINVPQ--------QVSH----YCASKAAVI 169
Query: 227 YFGAELYLKYADKGVDVSVVCPGWCYTNL 255
+ + ++ A + V+ V PG+ T L
Sbjct: 170 HLTKAMAVELAPHKIRVNSVSPGYILTEL 198
>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 = 44.0 bits (104), Expect = 6e-05
Identities = 24/93 (25%), Positives = 50/93 (53%), Gaps = 6/93 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
+ GK+ ++TGA+ GIG A +L + ATV + R++ L +E++ G+ +
Sbjct: 1 LSGKIALVTGASRGIGRGIALQLGEAGATVYITGRTI---LPQLPGTAEEIEARGGKCIP 57
Query: 112 MELNLASFDSIKN-FAKNVMKQYPKIHVLINNA 143
+ + + D ++ F + +Q ++ +L+NNA
Sbjct: 58 VRCDHSDDDEVEALFERVAREQQGRLDILVNNA 90
>gnl|CDD|135637 PRK05876, PRK05876, short chain dehydrogenase; Provisional.
Length = 275
Score = 43.4 bits (102), Expect = 9e-05
Identities = 30/98 (30%), Positives = 48/98 (48%), Gaps = 4/98 (4%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELN 115
G+ +ITG SGIG T E A+ A VVLG ++A+ L+ E D V+ ++
Sbjct: 6 GRGAVITGGASGIGLATGTEFARRGARVVLGDVDKPGLRQAVNHLRAEGFDVHGVMCDVR 65
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKE 151
+ + + A + + V+ +NAG+ V PI E
Sbjct: 66 --HREEVTHLADEAFRLLGHVDVVFSNAGIVVGGPIVE 101
>gnl|CDD|181605 PRK08993, PRK08993, 2-deoxy-D-gluconate 3-dehydrogenase; Validated.
Length = 253
Score = 43.3 bits (102), Expect = 1e-04
Identities = 25/93 (26%), Positives = 47/93 (50%), Gaps = 6/93 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG-QIVLM 112
+EGKV ++TG ++G+G A LA+ +V I E E +++ G + + +
Sbjct: 8 LEGKVAVVTGCDTGLGQGMALGLAEAGCDIV-----GINIVEPTETIEQVTALGRRFLSL 62
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+L D I + + ++ I +L+NNAG+
Sbjct: 63 TADLRKIDGIPALLERAVAEFGHIDILVNNAGL 95
>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 = 42.8 bits (101), Expect = 1e-04
Identities = 19/87 (21%), Positives = 42/87 (48%), Gaps = 4/87 (4%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
+V ++TGA+ G+G A+ A+ A VV+ R E+ E + E + + ++ ++
Sbjct: 1 QVVLVTGASRGLGAAIARSFAREGARVVVNYY---RSTESAEAVAAEAG-ERAIAIQADV 56
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNA 143
D ++ + + + ++NNA
Sbjct: 57 RDRDQVQAMIEEAKNHFGPVDTIVNNA 83
>gnl|CDD|223696 COG0623, FabI, Enoyl-[acyl-carrier-protein].
Length = 259
Score = 43.0 bits (102), Expect = 1e-04
Identities = 29/119 (24%), Positives = 58/119 (48%), Gaps = 23/119 (19%)
Query: 54 MEGKVCIITG--ANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD----- 106
+EGK +I G N I + AK LA+ A + + E+L+K V++
Sbjct: 4 LEGKRILIMGVANNRSIAWGIAKALAEQGAELAFTYQG--------ERLEKRVEELAEEL 55
Query: 107 GQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKL------TTKEGY 159
G +++ ++ + +SI + K++ K+ L+++ + P KE+L T++EG+
Sbjct: 56 GSDLVLPCDVTNDESIDALFATIKKKWGKLDGLVHSIAFA-P-KEELKGDYLDTSREGF 112
>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 = 42.7 bits (100), Expect = 1e-04
Identities = 35/204 (17%), Positives = 61/204 (29%), Gaps = 16/204 (7%)
Query: 60 IITGANSG-IGYETAKELAKLKATVVLGCRSMIRGQE---ALEKLKKEVQDGQIVLMELN 115
+ITGA G IG E + L A V + R ++++ N
Sbjct: 2 LITGAGDGSIGAEVLQGLLNGGAKVYVTTSRFSRQVTKYYQDIYAACGAAGSVLIVVPFN 61
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTN 175
S ++ + Y ++ L + + P T + V H ++
Sbjct: 62 QGS---KQDVEALAIGIYDTVNGLGWDLDLYGPFAAIPETGIEIPAIDSKSEVAHRIMLT 118
Query: 176 LLIERIQKVVIVGSSLMDRGTIDFDNL----NGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
L+ R + +V + L + T + F + AY SKL
Sbjct: 119 NLL-RPKGLVKIQKQLRGQETRPAQVILPFSPNHGTF----GDDGAYSESKLHLETLFNR 173
Query: 232 LYLKYADKGVDVSVVCPGWCYTNL 255
+ + V GW L
Sbjct: 174 WASESWGNDLTVCGAHIGWTRGTL 197
Score = 28.0 bits (62), Expect = 6.9
Identities = 10/40 (25%), Positives = 12/40 (30%)
Query: 308 PAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNL 347
AY SKL + + VC GW L
Sbjct: 158 GAYSESKLHLETLFNRWASESWGNDLTVCGAHIGWTRGTL 197
>gnl|CDD|180408 PRK06114, PRK06114, short chain dehydrogenase; Provisional.
Length = 254
Score = 42.5 bits (100), Expect = 2e-04
Identities = 46/208 (22%), Positives = 86/208 (41%), Gaps = 26/208 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++G+V +TGA SGIG A LA+ A V L R + L + + ++ + +
Sbjct: 6 LDGQVAFVTGAGSGIGQRIAIGLAQAGADVALFDL---RTDDGLAETAEHIEAAGRRAIQ 62
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVG 169
+ ++ S ++ + + + +N AG+ + P +E +E ++ IN G
Sbjct: 63 IAADVTSKADLRAAVARTEAELGALTLAVNAAGIANANPAEE--MEEEQWQTVMDINLTG 120
Query: 170 HFLL----TNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMN 225
FL ++E IV + M G I V +G Y SK
Sbjct: 121 VFLSCQAEARAMLEN-GGGSIVNIASMS-GII-----------VNRGLLQAHYNASKAGV 167
Query: 226 YYFGAELYLKYADKGVDVSVVCPGWCYT 253
+ L +++ +G+ V+ + PG+ T
Sbjct: 168 IHLSKSLAMEWVGRGIRVNSISPGYTAT 195
>gnl|CDD|235608 PRK05786, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 238
Score = 42.1 bits (99), Expect = 2e-04
Identities = 24/92 (26%), Positives = 43/92 (46%), Gaps = 5/92 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVLM 112
++GK I G + G+GY A K A V + R+ + L+++KK + G I +
Sbjct: 3 LKGKKVAIIGVSEGLGYAVAYFALKEGAQVCINSRN----ENKLKRMKKTLSKYGNIHYV 58
Query: 113 ELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
+++S +S +N + K I L+ G
Sbjct: 59 VGDVSSTESARNVIEKAAKVLNAIDGLVVTVG 90
>gnl|CDD|236209 PRK08265, PRK08265, short chain dehydrogenase; Provisional.
Length = 261
Score = 41.9 bits (99), Expect = 2e-04
Identities = 19/92 (20%), Positives = 37/92 (40%), Gaps = 5/92 (5%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+ GKV I+TG + IG A+ L A V + G L +
Sbjct: 2 IGLAGKVAIVTGGATLIGAAVARALVAAGARVAIVDIDADNGAAVAASL-----GERARF 56
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNA 143
+ ++ +I+ V+ ++ ++ +L+N A
Sbjct: 57 IATDITDDAAIERAVATVVARFGRVDILVNLA 88
>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 = 42.1 bits (99), Expect = 3e-04
Identities = 46/206 (22%), Positives = 80/206 (38%), Gaps = 29/206 (14%)
Query: 57 KVCIITGANSGIGYETAKELA---KLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
V +ITG +SGIG A LA + V R + + + L + + G + ++
Sbjct: 1 TVVLITGCSSGIGLHLAVRLASDPSKRFKVYATMRDLKK-KGRLWEAAGALAGGTLETLQ 59
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHF 171
L++ S+ A + + + VL+ NAGV + P+ E L+ V F +N G
Sbjct: 60 LDVCDSKSVAA-AVERVTE-RHVDVLVCNAGVGLLGPL-EALSEDAMASV-FDVNVFGTV 115
Query: 172 LLTNLLI----ERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
+ + R ++V SS+ + F N YC SK
Sbjct: 116 RMLQAFLPDMKRRGSGRILVTSSVGGLQGLPF---------------NDVYCASKFALEG 160
Query: 228 FGAELYLKYADKGVDVSVVCPGWCYT 253
L ++ V +S++ G +T
Sbjct: 161 LCESLAVQLLPFNVHLSLIECGPVHT 186
>gnl|CDD|180753 PRK06924, PRK06924, short chain dehydrogenase; Provisional.
Length = 251
Score = 41.6 bits (98), Expect = 3e-04
Identities = 44/175 (25%), Positives = 70/175 (40%), Gaps = 33/175 (18%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
IITG + G+G A +L + V+ S+ R + E + + L+L
Sbjct: 5 IITGTSQGLGEAIANQLLEKGTHVI----SISRTENKELTKLAEQYNSNLTFHSLDLQDV 60
Query: 120 DSIKNFAKNVMKQ-----YPKIHVLINNAGVSVPIK--EKLTTKEGYEVHFGINHVGHFL 172
++ ++ IH LINNAG+ PIK EK ++E + +N + +
Sbjct: 61 HELETNFNEILSSIQEDNVSSIH-LINNAGMVAPIKPIEKAESEELIT-NVHLNLLAPMI 118
Query: 173 LTNLLIERIQ-----KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSK 222
LT+ ++ + K VI SS G G S AYC+SK
Sbjct: 119 LTSTFMKHTKDWKVDKRVINISS-------------GAAKNPYFGWS--AYCSSK 158
>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 = 41.3 bits (97), Expect = 4e-04
Identities = 33/138 (23%), Positives = 66/138 (47%), Gaps = 15/138 (10%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLK-------KEVQD-- 106
GK ITGA+ GIG A + A+ A VV+ ++ E KL +E++
Sbjct: 3 GKTLFITGASRGIGKAIALKAARDGANVVIAAKT----AEPHPKLPGTIYTAAEEIEAAG 58
Query: 107 GQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNA-GVSVPIKEKLTTKEGYEVHFGI 165
G+ + +++ D ++ + ++++ I +L+NNA +S+ K Y++ G+
Sbjct: 59 GKALPCIVDIRDEDQVRAAVEKAVEKFGGIDILVNNASAISLTGTLDTPMKR-YDLMMGV 117
Query: 166 NHVGHFLLTNLLIERIQK 183
N G +L + + ++K
Sbjct: 118 NTRGTYLCSKACLPYLKK 135
>gnl|CDD|181188 PRK07985, PRK07985, oxidoreductase; Provisional.
Length = 294
Score = 41.1 bits (96), Expect = 6e-04
Identities = 54/215 (25%), Positives = 99/215 (46%), Gaps = 38/215 (17%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG--QIVL 111
++ + ++TG +SGIG A A+ A V + + +E + +KK +++ + VL
Sbjct: 47 LKDRKALVTGGDSGIGRAAAIAYAREGADVAIS--YLPVEEEDAQDVKKIIEECGRKAVL 104
Query: 112 MELNLASFDSIKNFAKNVMKQYPK------IHVLINNAGVSVPIKEKLTTKEGYEVHFGI 165
+ +L S + FA++++ + K I L+ V++P LT+ E ++ F I
Sbjct: 105 LPGDL----SDEKFARSLVHEAHKALGGLDIMALVAGKQVAIPDIADLTS-EQFQKTFAI 159
Query: 166 NHVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNP-----AYCN 220
N F LT I + K G+S++ +I Q +P A
Sbjct: 160 NVFALFWLTQEAIPLLPK----GASIITTSSI------------QAYQPSPHLLDYAATK 203
Query: 221 SKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
+ ++NY G L + A+KG+ V++V PG +T L
Sbjct: 204 AAILNYSRG--LAKQVAEKGIRVNIVAPGPIWTAL 236
>gnl|CDD|237187 PRK12743, PRK12743, oxidoreductase; Provisional.
Length = 256
Score = 40.4 bits (95), Expect = 7e-04
Identities = 24/91 (26%), Positives = 46/91 (50%), Gaps = 5/91 (5%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQ-IVLMEL 114
+V I+T ++SGIG A LA+ + + S +E ++ +EV+ G + +L
Sbjct: 3 QVAIVTASDSGIGKACALLLAQQGFDIGITWHS---DEEGAKETAEEVRSHGVRAEIRQL 59
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+L+ ++++ +I VL+NNAG
Sbjct: 60 DLSDLPEGAQALDKLIQRLGRIDVLVNNAGA 90
>gnl|CDD|235794 PRK06398, PRK06398, aldose dehydrogenase; Validated.
Length = 258
Score = 40.6 bits (95), Expect = 7e-04
Identities = 20/95 (21%), Positives = 42/95 (44%), Gaps = 13/95 (13%)
Query: 51 YKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIV 110
++ KV I+TG + GIG L + + V+ KE +
Sbjct: 1 DLGLKDKVAIVTGGSQGIGKAVVNRLKEEGSNVINFDI-------------KEPSYNDVD 47
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
++++++ + + V+ +Y +I +L+NNAG+
Sbjct: 48 YFKVDVSNKEQVIKGIDYVISKYGRIDILVNNAGI 82
>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 = 40.2 bits (94), Expect = 9e-04
Identities = 45/220 (20%), Positives = 84/220 (38%), Gaps = 47/220 (21%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLG--CRSMIR-------GQEALEKLKK-- 102
+EGKV ITGA G G A LA A ++ C + +E L++ +
Sbjct: 1 LEGKVAFITGAARGQGRAHAVRLAAEGADIIAIDLCAPLSDYPTYPLATREDLDETARLV 60
Query: 103 EVQDGQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYE 160
E +++ + ++ ++ ++ ++Q+ ++ V++ NAGV E ++E ++
Sbjct: 61 EALGRKVLARKADVRDLAEVRAVVEDGVEQFGRLDVVVANAGVLSYGRSWE--LSEEQWD 118
Query: 161 VHFGINHVGHFLLTN----LLIERIQ--KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHS 214
IN G + +IER ++I S G K H
Sbjct: 119 TVLDINLTGVWRTCKAVVPHMIERGNGGSIIITSSV------------AGLKALPGLAH- 165
Query: 215 NPAYCNSK-----LMNYYFGAELYLKYADKGVDVSVVCPG 249
Y +K L L + A+ G+ V+ + P
Sbjct: 166 ---YAAAKHGLVGLTK-----TLANELAEYGIRVNSIHPY 197
>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 = 40.1 bits (94), Expect = 0.001
Identities = 30/117 (25%), Positives = 46/117 (39%), Gaps = 5/117 (4%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLA 117
V + GA G+G A+ A +V L R EAL G + +
Sbjct: 1 VAAVVGAGDGLGAAIARRFAAEGFSVALAARR-EAKLEALLVDIIRDAGGSAKAVPTDAR 59
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGVSV--PIKEKLTTKEGYEVHFGINHVGHFL 172
D + + ++ + VL+ NAG +V PI E TT +E + + G FL
Sbjct: 60 DEDEVIALFDLIEEEIGPLEVLVYNAGANVWFPILE--TTPRVFEKVWEMAAFGGFL 114
>gnl|CDD|236210 PRK08267, PRK08267, short chain dehydrogenase; Provisional.
Length = 260
Score = 39.9 bits (94), Expect = 0.001
Identities = 25/89 (28%), Positives = 36/89 (40%), Gaps = 11/89 (12%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFD 120
ITGA SGIG TA A V + + L L E+ G L++
Sbjct: 6 ITGAASGIGRATALLFAAEGWRVGAYDIN----EAGLAALAAELGAGNAWTGALDVTDRA 61
Query: 121 S----IKNFAKNVMKQYPKIHVLINNAGV 145
+ + +FA ++ VL NNAG+
Sbjct: 62 AWDAALADFAAATGG---RLDVLFNNAGI 87
>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 = 39.6 bits (93), Expect = 0.001
Identities = 32/127 (25%), Positives = 60/127 (47%), Gaps = 16/127 (12%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++G+V +ITG SG+G + A V + + R E + +L+ + D +V +E
Sbjct: 2 LKGEVALITGGGSGLGRALVERFVAEGAKVAV----LDRSAEKVAELRADFGD-AVVGVE 56
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV--------SVPIKEKLTTKEGYEVHFGI 165
++ S + ++++ K+ I NAG+ +P +EKL E ++ F I
Sbjct: 57 GDVRSLADNERAVARCVERFGKLDCFIGNAGIWDYSTSLVDIP-EEKLD--EAFDELFHI 113
Query: 166 NHVGHFL 172
N G+ L
Sbjct: 114 NVKGYIL 120
>gnl|CDD|181349 PRK08278, PRK08278, short chain dehydrogenase; Provisional.
Length = 273
Score = 39.5 bits (93), Expect = 0.002
Identities = 31/133 (23%), Positives = 60/133 (45%), Gaps = 15/133 (11%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLK-------KEV 104
+ GK ITGA+ GIG A A+ A +V+ ++ E KL +E+
Sbjct: 2 MSLSGKTLFITGASRGIGLAIALRAARDGANIVIAAKT----AEPHPKLPGTIHTAAEEI 57
Query: 105 QD--GQIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAG-VSVPIKEKLTTKEGYEV 161
+ GQ + + ++ D + ++++ I + +NNA +++ E K +++
Sbjct: 58 EAAGGQALPLVGDVRDEDQVAAAVAKAVERFGGIDICVNNASAINLTGTEDTPMKR-FDL 116
Query: 162 HFGINHVGHFLLT 174
IN G FL++
Sbjct: 117 MQQINVRGTFLVS 129
>gnl|CDD|236116 PRK07856, PRK07856, short chain dehydrogenase; Provisional.
Length = 252
Score = 39.1 bits (92), Expect = 0.002
Identities = 23/90 (25%), Positives = 40/90 (44%), Gaps = 12/90 (13%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIV-LMEL 114
G+V ++TG GIG A+ ATVV+ R E DG+
Sbjct: 6 GRVVLVTGGTRGIGAGIARAFLAAGATVVVCGRR-----------APETVDGRPAEFHAA 54
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
++ D + +++++ ++ VL+NNAG
Sbjct: 55 DVRDPDQVAALVDAIVERHGRLDVLVNNAG 84
>gnl|CDD|180399 PRK06101, PRK06101, short chain dehydrogenase; Provisional.
Length = 240
Score = 39.1 bits (91), Expect = 0.002
Identities = 58/204 (28%), Positives = 80/204 (39%), Gaps = 38/204 (18%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
+ITGA SGIG + A + AK V+ C R Q L++L Q I + ++
Sbjct: 5 LITGATSGIGKQLALDYAKQGWQVI-ACG---RNQSVLDEL--HTQSANIFTLAFDVTDH 58
Query: 120 DSIKNFAKNVMKQYPKI-HVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLI 178
K + Q P I + I NAG + + F +N +G + N I
Sbjct: 59 PG----TKAALSQLPFIPELWIFNAGDCEYMDDGKVDATLMARVFNVNVLG---VAN-CI 110
Query: 179 ERIQ-------KVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAE 231
E IQ +VVIVGS + E + AY SK YF
Sbjct: 111 EGIQPHLSCGHRVVIVGS------------IASELALPRA----EAYGASKAAVAYFART 154
Query: 232 LYLKYADKGVDVSVVCPGWCYTNL 255
L L KG++V V PG+ T L
Sbjct: 155 LQLDLRPKGIEVVTVFPGFVATPL 178
Score = 28.7 bits (64), Expect = 5.3
Identities = 16/39 (41%), Positives = 19/39 (48%)
Query: 309 AYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYTNL 347
AY SK YF L L KG++V V PG+ T L
Sbjct: 140 AYGASKAAVAYFARTLQLDLRPKGIEVVTVFPGFVATPL 178
>gnl|CDD|180771 PRK06947, PRK06947, glucose-1-dehydrogenase; Provisional.
Length = 248
Score = 39.4 bits (92), Expect = 0.002
Identities = 26/94 (27%), Positives = 44/94 (46%), Gaps = 5/94 (5%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVLMEL 114
KV +ITGA+ GIG TA A +V + R A E+ V+ G+ ++
Sbjct: 3 KVVLITGASRGIGRATAVLAAARGWSVGINYA---RDAAAAEETADAVRAAGGRACVVAG 59
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP 148
++A+ + V + ++ L+NNAG+ P
Sbjct: 60 DVANEADVIAMFDAVQSAFGRLDALVNNAGIVAP 93
>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 = 39.0 bits (91), Expect = 0.002
Identities = 48/222 (21%), Positives = 74/222 (33%), Gaps = 61/222 (27%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
+ITGA SGIG TA+ L TV+ ++++ + +L++
Sbjct: 3 VITGAASGIGAATAELLEDAGHTVI----------------GIDLREADV---IADLSTP 43
Query: 120 DSIKN-FAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLI 178
+ A + + + L+N AGV L K Y FG+ L L+
Sbjct: 44 EGRAAAIADVLARCSGVLDGLVNCAGVGGTTVAGLVLKVNY---FGLRA-----LMEALL 95
Query: 179 ERIQK-----VVIVGSSLMDRGTIDFDNL-----NGEKGFV-----QKGH-SNPAYCNSK 222
R++K V+V S D L G + G AY SK
Sbjct: 96 PRLRKGHGPAAVVVSSIAGAGWAQDKLELAKALAAGTEARAVALAEHAGQPGYLAYAGSK 155
Query: 223 LMNYYFGAELYLKYADK---------GVDVSVVCPGWCYTNL 255
E + + GV V+ V PG T +
Sbjct: 156 --------EALTVWTRRRAATWLYGAGVRVNTVAPGPVETPI 189
>gnl|CDD|187539 cd05228, AR_FR_like_1_SDR_e, uncharacterized subgroup of aldehyde
reductase and flavonoid reductase related proteins,
extended (e) SDRs. This subgroup contains proteins of
unknown function related to aldehyde reductase and
flavonoid reductase of the extended SDR-type. Aldehyde
reductase I (aka carbonyl reductase) is an NADP-binding
SDR; it has an NADP-binding motif consensus that is
slightly different from the canonical SDR form and lacks
the Asn of the extended SDR active site tetrad. Aldehyde
reductase I catalyzes the NADP-dependent reduction of
ethyl 4-chloro-3-oxobutanoate to ethyl
(R)-4-chloro-3-hydroxybutanoate. The related flavonoid
reductases act in the NADP-dependent reduction of
flavonoids, ketone-containing plant secondary
metabolites. Extended SDRs are distinct from classical
SDRs. In addition to the Rossmann fold (alpha/beta
folding pattern with a central beta-sheet) core region
typical of all SDRs, extended SDRs have a less conserved
C-terminal extension of approximately 100 amino acids.
Extended SDRs are a diverse collection of proteins, and
include isomerases, epimerases, oxidoreductases, and
lyases; they typically have a TGXXGXXG cofactor binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 318
Score = 39.2 bits (92), Expect = 0.003
Identities = 12/48 (25%), Positives = 19/48 (39%), Gaps = 4/48 (8%)
Query: 297 EKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCY 344
E + Y SKL+ L+ A +G+DV +V P +
Sbjct: 125 ETTPWNERPFPNDYYRSKLL----AELEVLEAAAEGLDVVIVNPSAVF 168
Score = 36.9 bits (86), Expect = 0.011
Identities = 12/48 (25%), Positives = 19/48 (39%), Gaps = 4/48 (8%)
Query: 205 EKGFVQKGHSNPAYCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCY 252
E + Y SKL+ L+ A +G+DV +V P +
Sbjct: 125 ETTPWNERPFPNDYYRSKLL----AELEVLEAAAEGLDVVIVNPSAVF 168
>gnl|CDD|182051 PRK09730, PRK09730, putative NAD(P)-binding oxidoreductase;
Provisional.
Length = 247
Score = 38.7 bits (90), Expect = 0.003
Identities = 47/219 (21%), Positives = 89/219 (40%), Gaps = 39/219 (17%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLG-CRSMIRGQEALEKLKKEVQDGQIVLMELN 115
+ ++TG + GIG TA LA+ TV + +++ QE + + G+ +++ +
Sbjct: 2 AIALVTGGSRGIGRATALLLAQEGYTVAVNYQQNLHAAQEVVNLI--TQAGGKAFVLQAD 59
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV--SVPIKEKLTTKEGYEVHFGINHVGHFLL 173
++ + + + + + L+NNAG+ + E LT + V N G+FL
Sbjct: 60 ISDENQVVAMFTAIDQHDEPLAALVNNAGILFTQCTVENLTAERINRV-LSTNVTGYFLC 118
Query: 174 TNLLIERIQK--------VVIVGSSLMDRGT----IDFDNLNGEKGFVQKGHSNPAYCNS 221
++R+ +V V S+ G +D+ G + G
Sbjct: 119 CREAVKRMALKHGGSGGAIVNVSSAASRLGAPGEYVDYAASKGAIDTLTTG--------- 169
Query: 222 KLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHAD 260
L L+ A +G+ V+ V PG+ YT + HA
Sbjct: 170 ----------LSLEVAAQGIRVNCVRPGFIYTEM--HAS 196
>gnl|CDD|180343 PRK05993, PRK05993, short chain dehydrogenase; Provisional.
Length = 277
Score = 38.9 bits (91), Expect = 0.003
Identities = 56/224 (25%), Positives = 86/224 (38%), Gaps = 47/224 (20%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
+ +ITG +SGIG A+ L V CR ALE +G + +L+
Sbjct: 5 RSILITGCSSGIGAYCARALQSDGWRVFATCRK-EEDVAALE------AEG-LEAFQLDY 56
Query: 117 ASFDSIKNFAKNVMKQYP-KIHVLINNAGVSVP-IKEKLTTKEGYEVHFGINHVG-HFLL 173
A +SI V++ ++ L NN P E L T E F N G H L
Sbjct: 57 AEPESIAALVAQVLELSGGRLDALFNNGAYGQPGAVEDLPT-EALRAQFEANFFGWHDLT 115
Query: 174 TNLL-IERIQKV--VIVGSSLMDRGTIDFDNLNGEKGFVQ---KGHSNPAYCNSKLMNYY 227
++ + R Q ++ SS++ G V +G AY SK
Sbjct: 116 RRVIPVMRKQGQGRIVQCSSIL--------------GLVPMKYRG----AYNASK----- 152
Query: 228 FGAE-----LYLKYADKGVDVSVVCPGWCYTNLFRHADIKFYQK 266
F E L ++ G+ VS++ PG T FR + +++
Sbjct: 153 FAIEGLSLTLRMELQGSGIHVSLIEPGPIETR-FRANALAAFKR 195
>gnl|CDD|182531 PRK10538, PRK10538, malonic semialdehyde reductase; Provisional.
Length = 248
Score = 38.2 bits (89), Expect = 0.004
Identities = 23/90 (25%), Positives = 50/90 (55%), Gaps = 5/90 (5%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLA 117
+ ++TGA +G G + + V+ + R QE L++LK E+ D + + +L++
Sbjct: 2 IVLVTGATAGFGECITRRFIQQGHKVI----ATGRRQERLQELKDELGD-NLYIAQLDVR 56
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
+ +I+ ++ ++ I VL+NNAG+++
Sbjct: 57 NRAAIEEMLASLPAEWRNIDVLVNNAGLAL 86
>gnl|CDD|181044 PRK07577, PRK07577, short chain dehydrogenase; Provisional.
Length = 234
Score = 38.2 bits (89), Expect = 0.004
Identities = 44/216 (20%), Positives = 80/216 (37%), Gaps = 46/216 (21%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
M + ++TGA GIG + LA LG + + + A++ E L
Sbjct: 1 MSSRTVLVTGATKGIGLALSLRLAN------LGHQVIGIARSAIDDFPGE-------LFA 47
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIK-EKLTTKEGYEVHFGIN-----H 167
+LA + + + +P + ++NN G+++P K+ +V + +N
Sbjct: 48 CDLADIEQTAATLAQINEIHP-VDAIVNNVGIALPQPLGKIDLAALQDV-YDLNVRAAVQ 105
Query: 168 VGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKL---- 223
V L + + ++V + S G +D +Y +K
Sbjct: 106 VTQAFLEGMKLREQGRIVNI-CSRAIFGALD----------------RTSYSAAKSALVG 148
Query: 224 MNYYFGAELYLKYADKGVDVSVVCPGWCYTNLFRHA 259
+ EL A+ G+ V+ V PG T LFR
Sbjct: 149 CTRTWALEL----AEYGITVNAVAPGPIETELFRQT 180
>gnl|CDD|237219 PRK12827, PRK12827, short chain dehydrogenase; Provisional.
Length = 249
Score = 38.2 bits (89), Expect = 0.004
Identities = 24/128 (18%), Positives = 60/128 (46%), Gaps = 2/128 (1%)
Query: 53 PMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV--QDGQIV 110
++ + +ITG + G+G A LA A V++ +RG+ + + + G+ +
Sbjct: 3 SLDSRRVLITGGSGGLGRAIAVRLAADGADVIVLDIHPMRGRAEADAVAAGIEAAGGKAL 62
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGH 170
+ ++ F + + ++++ ++ +L+NNAG++ + E ++ +N G
Sbjct: 63 GLAFDVRDFAATRAALDAGVEEFGRLDILVNNAGIATDAAFAELSIEEWDDVIDVNLDGF 122
Query: 171 FLLTNLLI 178
F +T +
Sbjct: 123 FNVTQAAL 130
>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 = 37.1 bits (87), Expect = 0.006
Identities = 23/88 (26%), Positives = 45/88 (51%), Gaps = 2/88 (2%)
Query: 60 IITGANSGIGYETAKELAKLKA-TVVLGCRSMIRGQEALEKLKK-EVQDGQIVLMELNLA 117
++TG G+G E A+ LA+ A +VL RS EA L + E + ++ ++ +++
Sbjct: 4 LVTGGLGGLGLELARWLAERGARHLVLLSRSGAPDPEAEALLAELEARGAEVTVVACDVS 63
Query: 118 SFDSIKNFAKNVMKQYPKIHVLINNAGV 145
D+++ + P + +I+ AGV
Sbjct: 64 DRDAVRALLAEIRADGPPLRGVIHAAGV 91
>gnl|CDD|181334 PRK08263, PRK08263, short chain dehydrogenase; Provisional.
Length = 275
Score = 37.7 bits (88), Expect = 0.006
Identities = 27/95 (28%), Positives = 42/95 (44%), Gaps = 13/95 (13%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKA--TVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
M KV ITGA+ G G + A L+ VV R L L ++ D L
Sbjct: 1 MMEKVWFITGASRGFGRAWTE--AALERGDRVVATARDT----ATLADLAEKYGDR---L 51
Query: 112 MELNLASFDSIKNFA--KNVMKQYPKIHVLINNAG 144
+ L L D FA + ++ + ++ +++NNAG
Sbjct: 52 LPLALDVTDRAAVFAAVETAVEHFGRLDIVVNNAG 86
>gnl|CDD|180413 PRK06128, PRK06128, oxidoreductase; Provisional.
Length = 300
Score = 37.9 bits (88), Expect = 0.006
Identities = 53/219 (24%), Positives = 90/219 (41%), Gaps = 46/219 (21%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++G+ +ITGA+SGIG TA A+ A + AL L +E QD V+
Sbjct: 53 LQGRKALITGADSGIGRATAIAFAREGADI------------ALNYLPEEEQDAAEVVQL 100
Query: 114 LNLASFDSI------------KNFAKNVMKQYPKIHVLINNAGVSVPIK--EKLTTKEGY 159
+ ++ + + +K+ + +L+N AG +K +TT E +
Sbjct: 101 IQAEGRKAVALPGDLKDEAFCRQLVERAVKELGGLDILVNIAGKQTAVKDIADITT-EQF 159
Query: 160 EVHFGINHVGHFLLTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPA-- 217
+ F N F L I + G+S+++ G+I Q +P
Sbjct: 160 DATFKTNVYAMFWLCKAAIPHLPP----GASIINTGSI------------QSYQPSPTLL 203
Query: 218 -YCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYTNL 255
Y ++K F L + A+KG+ V+ V PG +T L
Sbjct: 204 DYASTKAAIVAFTKALAKQVAEKGIRVNAVAPGPVWTPL 242
>gnl|CDD|177895 PLN02253, PLN02253, xanthoxin dehydrogenase.
Length = 280
Score = 37.5 bits (87), Expect = 0.007
Identities = 27/129 (20%), Positives = 54/129 (41%), Gaps = 7/129 (5%)
Query: 47 ASPFYKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD 106
+S + + GKV ++TG +GIG + K A V C ++ + + + +
Sbjct: 9 SSLPSQRLLGKVALVTGGATGIGESIVRLFHKHGAKV---CIVDLQ-DDLGQNVCDSLGG 64
Query: 107 GQIVL-MELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVH--F 163
V ++ D + + ++ + +++NNAG++ P + E E F
Sbjct: 65 EPNVCFFHCDVTVEDDVSRAVDFTVDKFGTLDIMVNNAGLTGPPCPDIRNVELSEFEKVF 124
Query: 164 GINHVGHFL 172
+N G FL
Sbjct: 125 DVNVKGVFL 133
>gnl|CDD|235813 PRK06482, PRK06482, short chain dehydrogenase; Provisional.
Length = 276
Score = 37.4 bits (87), Expect = 0.009
Identities = 26/93 (27%), Positives = 46/93 (49%), Gaps = 13/93 (13%)
Query: 56 GKVCIITGANSGIGYE-TAKELAK---LKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
K ITGA+SG G T + LA+ + ATV R +AL+ LK D ++ +
Sbjct: 2 SKTWFITGASSGFGRGMTERLLARGDRVAATV--------RRPDALDDLKARYGD-RLWV 52
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAG 144
++L++ +++ +I V+++NAG
Sbjct: 53 LQLDVTDSAAVRAVVDRAFAALGRIDVVVSNAG 85
>gnl|CDD|180669 PRK06720, PRK06720, hypothetical protein; Provisional.
Length = 169
Score = 36.1 bits (83), Expect = 0.011
Identities = 25/92 (27%), Positives = 43/92 (46%), Gaps = 2/92 (2%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
+ GKV I+TG GIG TA LAK A V++ GQ +E++ G+ + +
Sbjct: 14 LAGKVAIVTGGGIGIGRNTALLLAKQGAKVIVTDIDQESGQATVEEITN--LGGEALFVS 71
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
++ + + + +I +L NAG+
Sbjct: 72 YDMEKQGDWQRVISITLNAFSRIDMLFQNAGL 103
>gnl|CDD|181324 PRK08251, PRK08251, short chain dehydrogenase; Provisional.
Length = 248
Score = 36.5 bits (85), Expect = 0.014
Identities = 19/70 (27%), Positives = 34/70 (48%), Gaps = 8/70 (11%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQ----DGQIVLM 112
+ +ITGA+SG+G A+E A + L R + LE+LK E+ ++ +
Sbjct: 3 QKILITGASSGLGAGMAREFAAKGRDLALCARRT----DRLEELKAELLARYPGIKVAVA 58
Query: 113 ELNLASFDSI 122
L++ D +
Sbjct: 59 ALDVNDHDQV 68
>gnl|CDD|222146 pfam13460, NAD_binding_10, NADH(P)-binding.
Length = 182
Score = 35.8 bits (83), Expect = 0.015
Identities = 15/65 (23%), Positives = 25/65 (38%), Gaps = 7/65 (10%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEAL-EKLKKEVQDGQIVLMELN--LA 117
+ GA G KEL V R+ + ++K++ D L +L LA
Sbjct: 3 VIGATGKTGRRLVKELLARGHQVTALSRNPSKAPAPGVTPVQKDLFD----LADLAEALA 58
Query: 118 SFDSI 122
D++
Sbjct: 59 GVDAV 63
>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 = 35.2 bits (82), Expect = 0.023
Identities = 23/91 (25%), Positives = 38/91 (41%), Gaps = 2/91 (2%)
Query: 57 KVCIITGANSGIGYETAKELAKLKA-TVVLGCRSMIRGQEALEKLKKEVQDGQIVLME-L 114
+ITG G+G A+ LA+ A +VL RS A L + G V +
Sbjct: 1 GTYLITGGLGGLGRALARWLAERGARRLVLLSRSGPDAPGAAALLAELEAAGARVTVVAC 60
Query: 115 NLASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
++A D++ + + +I+ AGV
Sbjct: 61 DVADRDALAAVLAAIPAVEGPLTGVIHAAGV 91
>gnl|CDD|132368 TIGR03325, BphB_TodD, cis-2,3-dihydrobiphenyl-2,3-diol
dehydrogenase. Members of this family occur as the BphD
protein of biphenyl catabolism and as the TodD protein
of toluene catabolism. Members catalyze the second step
in each pathway and proved interchangeable when tested;
the first and fourth enzymes in each pathway confer
metabolic specificity. In the context of biphenyl
degradation, the enzyme acts as
cis-2,3-dihydrobiphenyl-2,3-diol dehydrogenase (EC
1.3.1.56), while in toluene degradation it acts as
cis-toluene dihydrodiol dehydrogenase.
Length = 262
Score = 35.2 bits (81), Expect = 0.041
Identities = 34/125 (27%), Positives = 53/125 (42%), Gaps = 12/125 (9%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLME 113
++G+V ++TG SG+G A V + +S QE LE +V +E
Sbjct: 3 LKGEVVLVTGGASGLGRAIVDRFVAEGARVAVLDKSAAGLQE-LEAA----HGDAVVGVE 57
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGV------SVPIKEKLTTKEGYEVHFGINH 167
++ S D K + + KI LI NAG+ V I + E ++ F IN
Sbjct: 58 GDVRSLDDHKEAVARCVAAFGKIDCLIPNAGIWDYSTALVDIPDDRID-EAFDEVFHINV 116
Query: 168 VGHFL 172
G+ L
Sbjct: 117 KGYLL 121
>gnl|CDD|169389 PRK08339, PRK08339, short chain dehydrogenase; Provisional.
Length = 263
Score = 35.2 bits (81), Expect = 0.043
Identities = 18/50 (36%), Positives = 30/50 (60%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE 103
+ GK+ T ++ GIG+ A+ LA+ A V+L R+ ++A EK+K E
Sbjct: 6 LSGKLAFTTASSKGIGFGVARVLARAGADVILLSRNEENLKKAREKIKSE 55
>gnl|CDD|236229 PRK08303, PRK08303, short chain dehydrogenase; Provisional.
Length = 305
Score = 34.6 bits (80), Expect = 0.059
Identities = 18/43 (41%), Positives = 23/43 (53%), Gaps = 1/43 (2%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQ 94
KP+ GKV ++ GA G G A EL ATV + RS R +
Sbjct: 4 KPLRGKVALVAGATRGAGRGIAVELGAAGATVYVTGRS-TRAR 45
>gnl|CDD|223528 COG0451, WcaG, Nucleoside-diphosphate-sugar epimerases [Cell
envelope biogenesis, outer membrane / Carbohydrate
transport and metabolism].
Length = 314
Score = 34.9 bits (80), Expect = 0.063
Identities = 44/246 (17%), Positives = 80/246 (32%), Gaps = 42/246 (17%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
++TG IG + L V R L ++ + L+L
Sbjct: 4 LVTGGAGFIGSHLVERLLAAGHDVRGLDRLRDGLDPLLSGVE---------FVVLDLTDR 54
Query: 120 DSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLL-- 177
D + AK V +I+ A S + + +N G NLL
Sbjct: 55 DLVDELAKGVPD------AVIHLAAQSSVPDSNASDPAEF---LDVNVDG---TLNLLEA 102
Query: 178 --IERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYYFGAELYLK 235
+++ V S + G ++ + G + Y SKL AE L+
Sbjct: 103 ARAAGVKRFVFASSVSVVYGDPPPLPIDEDLGPPR---PLNPYGVSKLA-----AEQLLR 154
Query: 236 YADK--GVDVSVVCPGWCY-----TNLFRHADIKFYQKVMIFPIAMMVVIVGSSLMDRGT 288
+ G+ V ++ P Y +L F ++++ ++VI G R
Sbjct: 155 AYARLYGLPVVILRPFNVYGPGDKPDLSSGVVSAFIRQLLKGE--PIIVIGGDGSQTRDF 212
Query: 289 IDFDNL 294
+ D++
Sbjct: 213 VYVDDV 218
>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 = 33.9 bits (78), Expect = 0.087
Identities = 17/57 (29%), Positives = 27/57 (47%)
Query: 47 ASPFYKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE 103
K ++GK ++ G +G A LA+ A VVL R + R Q+A + L+
Sbjct: 19 LELMGKDLKGKTAVVLGGTGPVGQRAAVLLAREGARVVLVGRDLERAQKAADSLRAR 75
>gnl|CDD|235160 PRK03803, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 448
Score = 34.5 bits (80), Expect = 0.093
Identities = 23/81 (28%), Positives = 36/81 (44%), Gaps = 12/81 (14%)
Query: 48 SPFYKPMEGKVC-IITGANSGIGYETAKELAKLK--ATVVLGCRSMIRGQEALEKLKKEV 104
SP +P+ V ++ IG A ++A A ++ ++ EA+ K +
Sbjct: 361 SPLREPVAKYVRAVVL-----IG-RDADKIAAALGGAVPLVRVATL---AEAVAKAAELA 411
Query: 105 QDGQIVLMELNLASFDSIKNF 125
Q G IVL+ AS D KNF
Sbjct: 412 QAGDIVLLSPACASLDMFKNF 432
>gnl|CDD|180796 PRK07023, PRK07023, short chain dehydrogenase; Provisional.
Length = 243
Score = 33.8 bits (78), Expect = 0.11
Identities = 33/135 (24%), Positives = 49/135 (36%), Gaps = 24/135 (17%)
Query: 60 IITGANSGIGYETAKELAKLKATVV---------LGCRSMIRGQEALEKLKKEVQDGQIV 110
I+TG + G+G A++L + V+ L + R E L +
Sbjct: 5 IVTGHSRGLGAALAEQLLQPGIAVLGVARSRHPSLAAAAGERLAEVELDLS-DAAAAAAW 63
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEV--HFGINHV 168
L LA+F A V +LINNAG PI L T + + G+N
Sbjct: 64 LAGDLLAAFVDG---ASRV--------LLINNAGTVEPIG-PLATLDAAAIARAVGLNVA 111
Query: 169 GHFLLTNLLIERIQK 183
+LT L +
Sbjct: 112 APLMLTAALAQAASD 126
>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 = 33.3 bits (77), Expect = 0.12
Identities = 17/73 (23%), Positives = 29/73 (39%), Gaps = 18/73 (24%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSM------IRGQEALEKLKKEVQDGQIVLME 113
I+ GA IG A+ L+ V+ RS I + +++ L ++V
Sbjct: 2 IVIGATGTIGLAVAQLLSAHGHEVITAGRSSGDYQVDITDEASIKALFEKV--------- 52
Query: 114 LNLASFDSIKNFA 126
FD+I + A
Sbjct: 53 ---GHFDAIVSTA 62
>gnl|CDD|180586 PRK06483, PRK06483, dihydromonapterin reductase; Provisional.
Length = 236
Score = 33.4 bits (77), Expect = 0.14
Identities = 36/167 (21%), Positives = 60/167 (35%), Gaps = 24/167 (14%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASF 119
+ITGA IG A L V++ R+ A++ L+ Q G + + + ++
Sbjct: 6 LITGAGQRIGLALAWHLLAQGQPVIVSYRTH---YPAIDGLR---QAGAQCI-QADFSTN 58
Query: 120 DSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLLTNLLIE 179
I F + + + +I+NA + K + I HV L NL +E
Sbjct: 59 AGIMAFIDELKQHTDGLRAIIHNASDWLAEKPGAPLADVLARMMQI-HVNAPYLLNLALE 117
Query: 180 RIQKVVIVGSSLMDRGTI---DFDNLNGEKGFVQKGHSN-PAYCNSK 222
L+ D ++ V+KG AY SK
Sbjct: 118 ----------DLLRGHGHAASDIIHITDYV--VEKGSDKHIAYAASK 152
>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 = 33.4 bits (77), Expect = 0.15
Identities = 16/60 (26%), Positives = 24/60 (40%), Gaps = 11/60 (18%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFD 120
+TGA +G + L A+VV R+ EK K DG +E+ +D
Sbjct: 3 VTGATGKLGTAVVELLLAKVASVVALVRN-------PEKAKAFAADG----VEVRQGDYD 51
>gnl|CDD|235914 PRK07041, PRK07041, short chain dehydrogenase; Provisional.
Length = 230
Score = 33.1 bits (76), Expect = 0.17
Identities = 14/41 (34%), Positives = 19/41 (46%)
Query: 60 IITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKL 100
++ G +SGIG A+ A A V + RS R A L
Sbjct: 1 LVVGGSSGIGLALARAFAAEGARVTIASRSRDRLAAAARAL 41
>gnl|CDD|187636 cd08931, SDR_c9, classical (c) SDR, subgroup 9. This subgroup has
the canonical active site tetrad and NAD-binding motif
of the classical SDRs. SDRs are a functionally diverse
family of oxidoreductases that have a single domain with
a structurally conserved Rossmann fold (alpha/beta
folding pattern with a central beta-sheet), an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Classical SDRs are typically about
250 residues long, while extended SDRs are approximately
350 residues. Sequence identity between different SDR
enzymes are typically in the 15-30% range, but the
enzymes share the Rossmann fold NAD-binding motif and
characteristic NAD-binding and catalytic sequence
patterns. These enzymes catalyze a wide range of
activities including the metabolism of steroids,
cofactors, carbohydrates, lipids, aromatic compounds,
and amino acids, and act in redox sensing. Classical
SDRs have an TGXXX[AG]XG cofactor binding motif and a
YXXXK active site motif, with the Tyr residue of the
active site motif serving as a critical catalytic
residue (Tyr-151, human 15-hydroxyprostaglandin
dehydrogenase (15-PGDH) numbering). In addition to the
Tyr and Lys, there is often an upstream Ser (Ser-138,
15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH
numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Some atypical SDRs have lost catalytic activity and/or
have an unusual NAD(P)-binding motif and missing or
unusual active site residues. Reactions catalyzed within
the SDR family include isomerization, decarboxylation,
epimerization, C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 227
Score = 32.8 bits (75), Expect = 0.18
Identities = 28/93 (30%), Positives = 40/93 (43%), Gaps = 11/93 (11%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
K ITGA SGIG ETA A+ V L ++ L L E+ +V L++
Sbjct: 1 KAIFITGAASGIGRETALLFARNGWFVGL----YDIDEDGLAALAAELGAENVVAGALDV 56
Query: 117 ASFD----SIKNFAKNVMKQYPKIHVLINNAGV 145
++ +FA ++ L NNAGV
Sbjct: 57 TDRAAWAAALADFAAATGG---RLDALFNNAGV 86
>gnl|CDD|166421 PLN02780, PLN02780, ketoreductase/ oxidoreductase.
Length = 320
Score = 32.5 bits (74), Expect = 0.29
Identities = 54/211 (25%), Positives = 88/211 (41%), Gaps = 29/211 (13%)
Query: 56 GKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQI--VLME 113
G ++TG GIG A +LA+ +VL R+ + ++ + ++ + QI V+++
Sbjct: 53 GSWALVTGPTDGIGKGFAFQLARKGLNLVLVARNPDKLKDVSDSIQSKYSKTQIKTVVVD 112
Query: 114 LNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVPIKEKLTTKEGYEVHFGINHVGHFLL 173
+ + +K + + + VLINN GVS P Y F + V LL
Sbjct: 113 FSGDIDEGVKRIKETIEGL--DVGVLINNVGVSYP----------YARFF--HEVDEELL 158
Query: 174 TNLL---IERIQKV---VIVGSSLMDRGTIDFDNLNGEKGFVQKGHSNPAYCNSKLMNYY 227
NL+ +E KV V+ G +G I +N G S+P Y Y
Sbjct: 159 KNLIKVNVEGTTKVTQAVLPGMLKRKKGAI----INIGSGAAIVIPSDPLYAVYAATKAY 214
Query: 228 ---FGAELYLKYADKGVDVSVVCPGWCYTNL 255
F LY++Y G+DV P + T +
Sbjct: 215 IDQFSRCLYVEYKKSGIDVQCQVPLYVATKM 245
>gnl|CDD|181417 PRK08416, PRK08416, 7-alpha-hydroxysteroid dehydrogenase;
Provisional.
Length = 260
Score = 32.4 bits (74), Expect = 0.31
Identities = 21/96 (21%), Positives = 42/96 (43%), Gaps = 6/96 (6%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIV--- 110
M+GK +I+G GIG E A+ + S E K+ ++++ +
Sbjct: 6 MKGKTLVISGGTRGIGKAIVYEFAQSGVNIAFTYNS---NVEEANKIAEDLEQKYGIKAK 62
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVS 146
LN+ ++ K K + + + ++ I+NA +S
Sbjct: 63 AYPLNILEPETYKELFKKIDEDFDRVDFFISNAIIS 98
>gnl|CDD|168204 PRK05717, PRK05717, oxidoreductase; Validated.
Length = 255
Score = 32.6 bits (74), Expect = 0.31
Identities = 24/101 (23%), Positives = 42/101 (41%), Gaps = 5/101 (4%)
Query: 48 SPFYKPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG 107
S G+V ++TGA GIG A L VVL RG + + L +
Sbjct: 2 SEPNPGHNGRVALVTGAARGIGLGIAAWLIAEGWQVVLADLDRERGSKVAKALGENA--- 58
Query: 108 QIVLMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSVP 148
+ +++A + V+ Q+ ++ L+ NA ++ P
Sbjct: 59 --WFIAMDVADEAQVAAGVAEVLGQFGRLDALVCNAAIADP 97
>gnl|CDD|180822 PRK07069, PRK07069, short chain dehydrogenase; Validated.
Length = 251
Score = 31.6 bits (72), Expect = 0.52
Identities = 27/97 (27%), Positives = 40/97 (41%), Gaps = 19/97 (19%)
Query: 61 ITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDG----------QIV 110
ITGA G+G A+ +A+ A V L + I L+ E+ Q V
Sbjct: 4 ITGAAGGLGRAIARRMAEQGAKVFL---TDINDAAGLDAFAAEINAAHGEGVAFAAVQDV 60
Query: 111 LMELNLASFDSIKNFAKNVMKQYPKIHVLINNAGVSV 147
E A + ++ A + M + VL+NNAGV
Sbjct: 61 TDE---AQWQALLAQAADAMG---GLSVLVNNAGVGS 91
>gnl|CDD|187658 cd08955, KR_2_FAS_SDR_x, beta-ketoacyl reductase (KR) domain of
fatty acid synthase (FAS), subgroup 2, complex (x).
Ketoreductase, a module of the multidomain polyketide
synthase, has 2 subdomains, each corresponding to a
short-chain dehydrogenases/reductase (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 oligomerizes but is composed of 2
subdomains, each resembling an SDR monomer. In some
instances, as in porcine FAS, an enoyl reductase (a
Rossman fold NAD binding domain of the MDR family)
module is inserted between the sub-domains. The active
site resembles that of typical SDRs, except that the
usual positions of the catalytic asparagine and tyrosine
are swapped, so that the canonical YXXXK motif changes
to YXXXN. Modular polyketide synthases are
multifunctional structures in which the makeup
recapitulates that found in (and may have evolved from)
fatty acid synthase. In some instances, such as
porcine FAS , an enoyl reductase module is inserted
between the sub-domains. Fatty acid synthesis occurs via
the stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consists of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthesis
uses dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-ketoacyl reductase (KR), forming
beta-hydroxyacyl-ACP, which is in turn dehydrated by
dehydratase to a beta-enoyl intermediate, which is
reduced by NADP-dependent beta-enoyl reductase (ER).
Polyketide syntheses 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 the KR domain of the
Lyngbya majuscule Jam J, -K, and #L which are encoded
on the jam gene cluster and are involved in the
synthesis of the Jamaicamides (neurotoxins); Lyngbya
majuscule Jam P belongs to a different KR_FAS_SDR_x
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 = 376
Score = 31.9 bits (73), Expect = 0.54
Identities = 21/89 (23%), Positives = 42/89 (47%), Gaps = 5/89 (5%)
Query: 60 IITGANSGIGYETAKELAKLKA-TVVLGCRSMI--RGQEALEKLKKEVQDGQIVLMELNL 116
+ITG G+G A+ L + A +VL R ++A+ L E ++V++ ++
Sbjct: 153 LITGGLGGLGLLVAEWLVERGARHLVLTGRRAPSAAARQAIAAL--EEAGAEVVVLAADV 210
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
+ D++ + P + +I+ AGV
Sbjct: 211 SDRDALAAALAQIRASLPPLRGVIHAAGV 239
>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 = 30.9 bits (70), Expect = 0.74
Identities = 18/111 (16%), Positives = 32/111 (28%), Gaps = 10/111 (9%)
Query: 153 LTTKEGYEVHF-GINHVGHFL-LTNLLIERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQ 210
+ ++ VH I G + LT IER + +VG+ + + F+
Sbjct: 28 VVSRRDVVVHNAAILDDGRLIDLTGSRIERAIRANVVGTRRLLEAARELMKAKRLGRFIL 87
Query: 211 KGHSNPA--------YCNSKLMNYYFGAELYLKYADKGVDVSVVCPGWCYT 253
Y SK + + G+ + V G
Sbjct: 88 ISSVAGLFGAPGLGGYAASKAALDGLAQQWASEGWGNGLPATAVACGTWAG 138
Score = 28.6 bits (64), Expect = 4.3
Identities = 6/36 (16%), Positives = 9/36 (25%)
Query: 310 YCNSKLMNYYFGAELYLKYADKGVDVCVVCPGWCYT 345
Y SK + + G+ V G
Sbjct: 103 YAASKAALDGLAQQWASEGWGNGLPATAVACGTWAG 138
>gnl|CDD|179651 PRK03806, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 438
Score = 31.5 bits (72), Expect = 0.84
Identities = 17/53 (32%), Positives = 26/53 (49%), Gaps = 3/53 (5%)
Query: 73 AKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFDSIKNF 125
+LA L+ V +M ++A+ + VQ G +VL+ AS D KNF
Sbjct: 374 GAQLAALRPEVSQLTETM---EQAMRLIAPRVQPGDMVLLSPACASLDQFKNF 423
>gnl|CDD|168186 PRK05693, PRK05693, short chain dehydrogenase; Provisional.
Length = 274
Score = 30.9 bits (70), Expect = 0.99
Identities = 24/88 (27%), Positives = 39/88 (44%), Gaps = 8/88 (9%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNL 116
V +ITG +SGIG A V + R E +E L G + +L++
Sbjct: 2 PVVLITGCSSGIGRALADAFKAAGYEVW----ATARKAEDVEALA---AAGFTAV-QLDV 53
Query: 117 ASFDSIKNFAKNVMKQYPKIHVLINNAG 144
++ A+ + ++ + VLINNAG
Sbjct: 54 NDGAALARLAEELEAEHGGLDVLINNAG 81
>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 = 30.7 bits (70), Expect = 1.2
Identities = 23/90 (25%), Positives = 37/90 (41%), Gaps = 13/90 (14%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD-GQIVLMELN 115
V + GA IG LAK + V++ R EA + + D GQ++ +E +
Sbjct: 1 MVVTVFGATGFIGRYVVNRLAKRGSQVIVPYRC-----EAYARRLLVMGDLGQVLFVEFD 55
Query: 116 LASFDSIKNFAKNVMKQYPKIHVLINNAGV 145
L +SI+ + V+IN G
Sbjct: 56 LRDDESIRKALEGS-------DVVINLVGR 78
>gnl|CDD|236056 PRK07576, PRK07576, short chain dehydrogenase; Provisional.
Length = 264
Score = 30.3 bits (69), Expect = 1.3
Identities = 14/47 (29%), Positives = 23/47 (48%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLK 101
GK ++ G SGI A+ A+ A V + RS + A+ +L+
Sbjct: 8 AGKNVVVVGGTSGINLGIAQAFARAGANVAVASRSQEKVDAAVAQLQ 54
>gnl|CDD|225041 COG2130, COG2130, Putative NADP-dependent oxidoreductases [General
function prediction only].
Length = 340
Score = 30.7 bits (70), Expect = 1.3
Identities = 24/99 (24%), Positives = 41/99 (41%), Gaps = 23/99 (23%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+P G+ +++ A +G ++AKLK V+G I G EK ++
Sbjct: 147 QPKAGETVVVSAAAGAVG-SVVGQIAKLKGCRVVG----IAGGA--EKCDFLTEELG--- 196
Query: 112 MELNLASFDSI-----KNFAKNVMKQYPK-IHVLINNAG 144
FD+ ++FA+ + + PK I V N G
Sbjct: 197 -------FDAGIDYKAEDFAQALKEACPKGIDVYFENVG 228
>gnl|CDD|181517 PRK08642, fabG, 3-ketoacyl-(acyl-carrier-protein) reductase;
Provisional.
Length = 253
Score = 30.1 bits (68), Expect = 1.5
Identities = 17/60 (28%), Positives = 30/60 (50%), Gaps = 4/60 (6%)
Query: 52 KPMEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVL 111
+ E + ++TG + G+G A+ A+ A VV+ + ++A E L E+ D I L
Sbjct: 2 QISE-QTVLVTGGSRGLGAAIARAFAREGARVVVNYH---QSEDAAEALADELGDRAIAL 57
>gnl|CDD|176645 cd05282, ETR_like, 2-enoyl thioester reductase-like. 2-enoyl
thioester reductase (ETR) catalyzes the NADPH-dependent
conversion of trans-2-enoyl acyl carrier
protein/coenzyme A (ACP/CoA) to acyl-(ACP/CoA) in fatty
acid synthesis. 2-enoyl thioester reductase activity has
been linked in Candida tropicalis as essential in
maintaining mitiochondrial respiratory function. This
ETR family is a part of the medium chain
dehydrogenase/reductase family, but lack the zinc
coordination sites characteristic of the alcohol
dehydrogenases in this family. NAD(P)(H)-dependent
oxidoreductases are the major enzymes in the
interconversion of alcohols and aldehydes, or ketones.
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 has 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. 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.
Candida tropicalis enoyl thioester reductase (Etr1p)
catalyzes the NADPH-dependent reduction of trans-2-enoyl
thioesters in mitochondrial fatty acid synthesis. Etr1p
forms homodimers with each subunit containing a
nucleotide-binding Rossmann fold domain and a catalytic
domain.
Length = 323
Score = 30.3 bits (69), Expect = 1.6
Identities = 16/63 (25%), Positives = 25/63 (39%), Gaps = 4/63 (6%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMEL 114
G I ANS +G + L + +++R E +E+LK D I
Sbjct: 138 PGDWVIQNAANSAVGRMLIQLAKLLGFKTI----NVVRRDEQVEELKALGADEVIDSSPE 193
Query: 115 NLA 117
+LA
Sbjct: 194 DLA 196
>gnl|CDD|131732 TIGR02685, pter_reduc_Leis, pteridine reductase. Pteridine
reductase is an enzyme used by trypanosomatids
(including Trypanosoma cruzi and Leishmania major) to
obtain reduced pteridines by salvage rather than
biosynthetic pathways. Enzymes in T. cruzi described as
pteridine reductase 1 (PTR1) and pteridine reductase 2
(PTR2) have different activity profiles. PTR1 is more
active with with fully oxidized biopterin and folate
than with reduced forms, while PTR2 reduces
dihydrobiopterin and dihydrofolate but not oxidized
pteridines. T. cruzi PTR1 and PTR2 are more similar to
each other in sequence than either is to the pteridine
reductase of Leishmania major, and all are included in
this family.
Length = 267
Score = 30.3 bits (68), Expect = 1.6
Identities = 32/141 (22%), Positives = 51/141 (36%), Gaps = 21/141 (14%)
Query: 58 VCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEV---QDGQIVLMEL 114
++TGA IG A L + VVL R A L E+ + V +
Sbjct: 3 AAVVTGAAKRIGSSIAVALHQEGYRVVLHYH---RSAAAASTLAAELNARRPNSAVTCQA 59
Query: 115 NLAS----FDSIKNFAKNVMKQYPKIHVLINNAGVSVPI-------KEKLTTKEGYEVH- 162
+L++ F + + + + VL+NNA P E + K+ EV
Sbjct: 60 DLSNSATLFSRCEAIIDACFRAFGRCDVLVNNASAFYPTPLLRGDAGEGVGDKKSLEVQV 119
Query: 163 ---FGINHVGHFLLTNLLIER 180
FG N + + L +R
Sbjct: 120 AELFGSNAIAPYFLIKAFAQR 140
>gnl|CDD|233266 TIGR01087, murD, UDP-N-acetylmuramoylalanine--D-glutamate ligase.
[Cell envelope, Biosynthesis and degradation of murein
sacculus and peptidoglycan].
Length = 433
Score = 30.4 bits (69), Expect = 1.8
Identities = 18/63 (28%), Positives = 31/63 (49%), Gaps = 7/63 (11%)
Query: 68 IGYETAKELAKL---KATVVLGCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFDSIKN 124
IG E A ++A L V S+ +EA++ ++ G +VL+ ASFD K+
Sbjct: 364 IG-EDAAKIAPLLKEAGLSVYLVESL---EEAVQAAREVASPGDVVLLSPACASFDQFKS 419
Query: 125 FAK 127
+ +
Sbjct: 420 YEE 422
>gnl|CDD|182121 PRK09863, PRK09863, putative frv operon regulatory protein;
Provisional.
Length = 584
Score = 29.8 bits (67), Expect = 2.8
Identities = 14/41 (34%), Positives = 20/41 (48%), Gaps = 1/41 (2%)
Query: 2 LTNILSFFRDNDKLLLHSLLYTTTITLSALVISRYFKSRSW 42
L +L + D+LLL LL T ++ L S SR+W
Sbjct: 69 LFQLLQKSDNEDRLLLLRLLLNTFTPMAQL-ASALNLSRTW 108
>gnl|CDD|183716 PRK12744, PRK12744, short chain dehydrogenase; Provisional.
Length = 257
Score = 29.3 bits (66), Expect = 3.3
Identities = 24/117 (20%), Positives = 50/117 (42%), Gaps = 6/117 (5%)
Query: 54 MEGKVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD--GQIVL 111
++GKV +I G +G A++LA A V + + E+ V+ + V
Sbjct: 6 LKGKVVLIAGGAKNLGGLIARDLAAQGAKAVAIHYNSAASKADAEETVAAVKAAGAKAVA 65
Query: 112 MELNLASFDSIKNFAKNVMKQYPKIHVLINNAG--VSVPIKEKLTTKEGYEVHFGIN 166
+ +L + +++ + + + + IN G + PI E ++ Y+ F +N
Sbjct: 66 FQADLTTAAAVEKLFDDAKAAFGRPDIAINTVGKVLKKPIVE--ISEAEYDEMFAVN 120
>gnl|CDD|187661 cd08958, FR_SDR_e, flavonoid reductase (FR), extended (e) SDRs.
This subgroup contains FRs of the extended SDR-type and
related proteins. These FRs act in the NADP-dependent
reduction of flavonoids, ketone-containing plant
secondary metabolites; they have the characteristic
active site triad of the SDRs (though not the upstream
active site Asn) and a NADP-binding motif that is very
similar to the typical extended SDR motif. Extended SDRs
are distinct from classical SDRs. In addition to the
Rossmann fold (alpha/beta folding pattern with a central
beta-sheet) core region typical of all SDRs, extended
SDRs have a less conserved C-terminal extension of
approximately 100 amino acids. Extended SDRs are a
diverse collection of proteins, and include isomerases,
epimerases, oxidoreductases, and lyases; they typically
have a TGXXGXXG cofactor binding motif. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold, an NAD(P)(H)-binding region, and a structurally
diverse C-terminal region. Sequence identity between
different SDR enzymes is typically in the 15-30% range;
they catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 293
Score = 29.1 bits (66), Expect = 3.9
Identities = 17/77 (22%), Positives = 34/77 (44%), Gaps = 10/77 (12%)
Query: 179 ERIQKVVIVGSSLMDRGTIDFDNLNGEKGFVQKGH-SNPAYCNSKLMNYYFG---AEL-Y 233
+ +++VV SS+ + ++ GE V + S+ +C + Y AE
Sbjct: 111 KSVKRVVFT-SSV---AAVVWNPNRGEGKVVDESCWSDLDFCKKTKLWYALSKTLAEKAA 166
Query: 234 LKYA-DKGVDVSVVCPG 249
++A + G+D+ V P
Sbjct: 167 WEFAEENGLDLVTVNPS 183
Score = 27.9 bits (63), Expect = 8.0
Identities = 16/71 (22%), Positives = 30/71 (42%), Gaps = 9/71 (12%)
Query: 277 VIVGSSLMDRGTIDFDNLNGEKGFVQKGH-SNPAYCNSKLMNYYFG---AEL-YLKYA-D 330
V+ SS+ + ++ GE V + S+ +C + Y AE ++A +
Sbjct: 116 VVFTSSV---AAVVWNPNRGEGKVVDESCWSDLDFCKKTKLWYALSKTLAEKAAWEFAEE 172
Query: 331 KGVDVCVVCPG 341
G+D+ V P
Sbjct: 173 NGLDLVTVNPS 183
>gnl|CDD|223643 COG0569, TrkA, K+ transport systems, NAD-binding component
[Inorganic ion transport and metabolism].
Length = 225
Score = 28.8 bits (65), Expect = 4.2
Identities = 20/73 (27%), Positives = 32/73 (43%), Gaps = 15/73 (20%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQDGQIV------ 110
K+ II GA +G A+EL++ VVL + R +E +E+ + D +V
Sbjct: 2 KIIII-GAGR-VGRSVARELSEEGHNVVL----IDRDEERVEEFLADELDTHVVIGDATD 55
Query: 111 ---LMELNLASFD 120
L E + D
Sbjct: 56 EDVLEEAGIDDAD 68
>gnl|CDD|184511 PRK14106, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 450
Score = 29.2 bits (66), Expect = 4.5
Identities = 23/89 (25%), Positives = 36/89 (40%), Gaps = 23/89 (25%)
Query: 58 VCIITGANSGIGYE----TAKELAKLKATVVLG-CRSMIRGQ----------------EA 96
V I G + G ++ KE K+K ++LG I EA
Sbjct: 350 VLIAGGYDKGSDFDEFAKAFKE--KVKKLILLGETAQEIAEAARKYGFDNILFAETLEEA 407
Query: 97 LEKLKKEVQDGQIVLMELNLASFDSIKNF 125
++K + + G +VL+ AS+D KNF
Sbjct: 408 VKKAYEIAKPGDVVLLSPACASWDMFKNF 436
>gnl|CDD|219686 pfam07992, Pyr_redox_2, Pyridine nucleotide-disulphide
oxidoreductase. This family includes both class I and
class II oxidoreductases and also NADH oxidases and
peroxidases. This domain is actually a small NADH
binding domain within a larger FAD binding domain.
Length = 283
Score = 28.9 bits (65), Expect = 4.5
Identities = 33/163 (20%), Positives = 53/163 (32%), Gaps = 43/163 (26%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKE-VQDGQIVL-MEL 114
V II G G A LA+L V L +E+ G + + L
Sbjct: 1 DVVII-GGGPA-GLAAAIRLARLGLKVAL-----------IEREGGTCYNRGCLPKKLLL 47
Query: 115 NLASFDSIKNFAKNVMKQYPK--IHVLINNAGVSVPIKEK----LTTKEGYEVHF----- 163
+A + + Y + + VL+ V + EK + G E+ +
Sbjct: 48 EVAEGLELAIGLALPEEVYKEFGVEVLLGTEVVDIDRGEKTVVLKDVETGREITYDKLII 107
Query: 164 ---------GINHVGHFLLTNL--------LIERIQKVVIVGS 189
GI V L + L+E ++VV+VG
Sbjct: 108 ATGARPRIPGIPGVEVATLRGVIDSDEILELLELPKRVVVVGG 150
>gnl|CDD|179323 PRK01710, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 458
Score = 28.9 bits (65), Expect = 4.6
Identities = 12/32 (37%), Positives = 18/32 (56%)
Query: 94 QEALEKLKKEVQDGQIVLMELNLASFDSIKNF 125
+EA++ K+ + G IV + ASFD NF
Sbjct: 413 EEAVKVAKEIAEKGDIVTLSPACASFDMFPNF 444
>gnl|CDD|214416 MTH00066, ND5, NADH dehydrogenase subunit 5; Provisional.
Length = 598
Score = 29.1 bits (66), Expect = 4.7
Identities = 15/33 (45%), Positives = 22/33 (66%), Gaps = 3/33 (9%)
Query: 350 HADIK---FYQKVMIFPIAMMYMRSANQLEVLF 379
H+D K F++ ++IF IAMM + +AN L LF
Sbjct: 107 HSDPKINRFFKYLLIFLIAMMILVTANNLFQLF 139
>gnl|CDD|187657 cd08954, KR_1_FAS_SDR_x, beta-ketoacyl reductase (KR) domain of
fatty acid synthase (FAS), subgroup 1, complex (x) SDRs.
NADP-dependent KR domain of the multidomain type I FAS,
a complex SDR family. This subfamily also includes
proteins identified as polyketide synthase (PKS), a
protein with related modular protein architecture and
similar function. It includes the KR domains of
mammalian and chicken FAS, and Dictyostelium discoideum
putative polyketide synthases (PKSs). These KR domains
contain two subdomains, each of which is related to SDR
Rossmann fold domains. However, while the C-terminal
subdomain has an active site similar to the other SDRs
and a NADP-binding capability, the N-terminal SDR-like
subdomain is truncated and lacks these functions,
serving a supportive structural role. In some instances,
such as porcine FAS, an enoyl reductase (a Rossman fold
NAD-binding domain of the medium-chain
dehydrogenase/reductase, MDR family) module is inserted
between the sub-domains. Fatty acid synthesis occurs via
the stepwise elongation of a chain (which is attached to
acyl carrier protein, ACP) with 2-carbon units.
Eukaryotic systems consists of large, multifunctional
synthases (type I) while bacterial, type II systems, use
single function proteins. Fungal fatty acid synthesis
uses a dodecamer of 6 alpha and 6 beta subunits. In
mammalian type FAS cycles, ketoacyl synthase forms
acetoacetyl-ACP which is reduced by the NADP-dependent
beta-ketoacyl reductase (KR), forming
beta-hydroxyacyl-ACP, which is in turn dehydrated by
dehydratase to a beta-enoyl intermediate, which is
reduced by NADP-dependent beta-enoyl reductase (ER);
this KR and ER are members of the SDR family. This KR
subfamily has an active site tetrad with a similar 3D
orientation compared to archetypical SDRs, but the
active site Lys and Asn residue positions are swapped.
The characteristic NADP-binding is typical of the
multidomain complex SDRs, with a GGXGXXG NADP binding
motif. SDRs are a functionally diverse family of
oxidoreductases that have a single domain with a
structurally conserved Rossmann fold (alpha/beta folding
pattern with a central beta-sheet), an NAD(P)(H)-binding
region, and a structurally diverse C-terminal region.
Classical SDRs are typically about 250 residues long,
while extended SDRs are approximately 350 residues.
Sequence identity between different SDR enzymes are
typically in the 15-30% range, but the enzymes share the
Rossmann fold NAD-binding motif and characteristic
NAD-binding and catalytic sequence patterns. These
enzymes catalyze a wide range of activities including
the metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
prostaglandin dehydrogenase (PGDH) numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser (Ser-138, PGDH numbering) and/or an Asn (Asn-107,
PGDH numbering) contributing to the active site; while
substrate binding is in the C-terminal region, which
determines specificity. The standard reaction mechanism
is a 4-pro-S hydride transfer and proton relay involving
the conserved Tyr and Lys, a water molecule stabilized
by Asn, and nicotinamide. Extended SDRs have additional
elements in the C-terminal region, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type KRs have
a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs
have lost catalytic activity and/or have an unusual
NAD(P)-binding motif and missing or unusual active site
residues. Reactions catalyzed within the SDR family
include isomerization, decarboxylation, epimerization,
C=N bond reduction, dehydratase activity,
dehalogenation, Enoyl-CoA reduction, and
carbonyl-alcohol oxidoreduction.
Length = 452
Score = 29.0 bits (65), Expect = 4.7
Identities = 17/52 (32%), Positives = 22/52 (42%), Gaps = 3/52 (5%)
Query: 49 PFYKPMEGKVCIITGANSGIGYETAKELAKLKAT---VVLGCRSMIRGQEAL 97
Y GK +ITG + G+G E K L K A ++L M E L
Sbjct: 211 TNYPINLGKSYLITGGSGGLGLEILKWLVKRGAVENIIILSRSGMKWELELL 262
>gnl|CDD|223842 COG0771, MurD, UDP-N-acetylmuramoylalanine-D-glutamate ligase [Cell
envelope biogenesis, outer membrane].
Length = 448
Score = 28.8 bits (65), Expect = 4.8
Identities = 21/63 (33%), Positives = 35/63 (55%), Gaps = 7/63 (11%)
Query: 68 IGYETAKELAKL--KATVVL-GCRSMIRGQEALEKLKKEVQDGQIVLMELNLASFDSIKN 124
IG E A+++A +A L C ++ +EA++ ++ Q G +VL+ ASFD KN
Sbjct: 376 IG-EDAEKIAAALKEAGPSLVICETL---EEAVQLARELAQPGDVVLLSPACASFDQFKN 431
Query: 125 FAK 127
F +
Sbjct: 432 FEE 434
>gnl|CDD|237043 PRK12292, hisZ, ATP phosphoribosyltransferase regulatory subunit;
Provisional.
Length = 391
Score = 28.7 bits (65), Expect = 5.2
Identities = 8/34 (23%), Positives = 19/34 (55%)
Query: 94 QEALEKLKKEVQDGQIVLMELNLASFDSIKNFAK 127
AL ++ + G+IV++ L +F+ + +A+
Sbjct: 341 AAALAAAQELRKKGEIVVLALPGRNFEDAREYAR 374
>gnl|CDD|176250 cd08290, ETR, 2-enoyl thioester reductase (ETR). 2-enoyl thioester
reductase (ETR) catalyzes the NADPH-dependent conversion
of trans-2-enoyl acyl carrier protein/coenzyme A
(ACP/CoA) to acyl-(ACP/CoA) in fatty acid synthesis.
2-enoyl thioester reductase activity has been linked in
Candida tropicalis as essential in maintaining
mitiochondrial respiratory function. This ETR family is
a part of the medium chain dehydrogenase/reductase
family, but lack the zinc coordination sites
characteristic of the alcohol dehydrogenases in this
family. NAD(P)(H)-dependent oxidoreductases are the
major enzymes in the interconversion of alcohols and
aldehydes, or ketones. 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 has 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. 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. Candida tropicalis
enoyl thioester reductase (Etr1p) catalyzes the
NADPH-dependent reduction of trans-2-enoyl thioesters in
mitochondrial fatty acid synthesis. Etr1p forms
homodimers, with each subunit containing a
nucleotide-binding Rossmann fold domain and a catalytic
domain.
Length = 341
Score = 28.7 bits (65), Expect = 5.8
Identities = 25/82 (30%), Positives = 39/82 (47%), Gaps = 15/82 (18%)
Query: 55 EGKVCIITGANSGIGYETAKELAKLKATVVLGCR--SMIRGQEALEKLKKEVQD--GQIV 110
G I GANS +G + +LAKL LG + +++R + LE+LK+ ++ V
Sbjct: 146 PGDWVIQNGANSAVG-QAVIQLAKL-----LGIKTINVVRDRPDLEELKERLKALGADHV 199
Query: 111 LMELNLASFDSIKNFAKNVMKQ 132
L E L S A ++K
Sbjct: 200 LTEEELRSL-----LATELLKS 216
>gnl|CDD|180838 PRK07102, PRK07102, short chain dehydrogenase; Provisional.
Length = 243
Score = 28.0 bits (63), Expect = 6.8
Identities = 15/50 (30%), Positives = 22/50 (44%), Gaps = 8/50 (16%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKKEVQD 106
K+ II GA S I A+ A A + L R + E+L++ D
Sbjct: 3 KILII-GATSDIARACARRYAAAGARLYLAARDV-------ERLERLADD 44
>gnl|CDD|179871 PRK04663, murD, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
synthetase; Provisional.
Length = 438
Score = 28.2 bits (63), Expect = 8.4
Identities = 12/39 (30%), Positives = 23/39 (58%), Gaps = 3/39 (7%)
Query: 87 CRSMIRGQEALEKLKKEVQDGQIVLMELNLASFDSIKNF 125
+M ++A+E + +++ G +V++ ASFD KNF
Sbjct: 388 FDTM---EDAIESISPQLKSGDMVMLSPACASFDQFKNF 423
>gnl|CDD|181156 PRK07878, PRK07878, molybdopterin biosynthesis-like protein MoeZ;
Validated.
Length = 392
Score = 28.1 bits (63), Expect = 8.7
Identities = 15/35 (42%), Positives = 21/35 (60%), Gaps = 2/35 (5%)
Query: 70 YETAKELAKLKA--TVVLGCRSMIRGQEALEKLKK 102
+ + LAKL T+VL C++ +R EAL LKK
Sbjct: 331 ILSGEALAKLPQDRTIVLYCKTGVRSAEALAALKK 365
>gnl|CDD|236541 PRK09496, trkA, potassium transporter peripheral membrane
component; Reviewed.
Length = 453
Score = 28.2 bits (64), Expect = 9.6
Identities = 18/46 (39%), Positives = 23/46 (50%), Gaps = 2/46 (4%)
Query: 57 KVCIITGANSGIGYETAKELAKLKATVVLGCRSMIRGQEALEKLKK 102
+V I+ G N IGY AK L K +V L R R +E E+L
Sbjct: 233 RVMIVGGGN--IGYYLAKLLEKEGYSVKLIERDPERAEELAEELPN 276
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.323 0.139 0.416
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: 19,378,595
Number of extensions: 1875315
Number of successful extensions: 2720
Number of sequences better than 10.0: 1
Number of HSP's gapped: 2439
Number of HSP's successfully gapped: 337
Length of query: 384
Length of database: 10,937,602
Length adjustment: 99
Effective length of query: 285
Effective length of database: 6,546,556
Effective search space: 1865768460
Effective search space used: 1865768460
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.5 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (22.0 bits)
S2: 60 (26.7 bits)