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Conserved domains on  [gi|6017118|gb|AAF01601|]
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unknown protein [Arabidopsis thaliana]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
NADB_Rossmann super family cl21454
Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a ...
37-62 1.33e-07

Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a Rossmann-fold NAD(P)H/NAD(P)(+) binding (NADB) domain. The NADB domain is found in numerous dehydrogenases of metabolic pathways such as glycolysis, and many other redox enzymes. NAD binding involves numerous hydrogen-bonds and van der Waals contacts, in particular H-bonding of residues in a turn between the first strand and the subsequent helix of the Rossmann-fold topology. Characteristically, this turn exhibits a consensus binding pattern similar to GXGXXG, in which the first 2 glycines participate in NAD(P)-binding, and the third facilitates close packing of the helix to the beta-strand. Typically, proteins in this family contain a second domain in addition to the NADB domain, which is responsible for specifically binding a substrate and catalyzing a particular enzymatic reaction.


The actual alignment was detected with superfamily member cd05329:

Pssm-ID: 473865 [Multi-domain]  Cd Length: 251  Bit Score: 47.83  E-value: 1.33e-07
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:cd05329 215 RFGEPEEVAALVAFLCMPAASYITGQ 240
NADB_Rossmann super family cl21454
Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a ...
3-28 3.37e-03

Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a Rossmann-fold NAD(P)H/NAD(P)(+) binding (NADB) domain. The NADB domain is found in numerous dehydrogenases of metabolic pathways such as glycolysis, and many other redox enzymes. NAD binding involves numerous hydrogen-bonds and van der Waals contacts, in particular H-bonding of residues in a turn between the first strand and the subsequent helix of the Rossmann-fold topology. Characteristically, this turn exhibits a consensus binding pattern similar to GXGXXG, in which the first 2 glycines participate in NAD(P)-binding, and the third facilitates close packing of the helix to the beta-strand. Typically, proteins in this family contain a second domain in addition to the NADB domain, which is responsible for specifically binding a substrate and catalyzing a particular enzymatic reaction.


The actual alignment was detected with superfamily member cd05329:

Pssm-ID: 473865 [Multi-domain]  Cd Length: 251  Bit Score: 35.50  E-value: 3.37e-03
                        10        20
                ....*....|....*....|....*.
gi 6017118    3 RDQRNKLTQEVSSAFSGKLNILVSSL 28
Cdd:cd05329  67 RSERQELMDTVASHFGGKLNILVNNA 92
 
Name Accession Description Interval E-value
TR_SDR_c cd05329
tropinone reductase-I and II (TR-1, and TR-II)-like, classical (c) SDRs; This subgroup ...
37-62 1.33e-07

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.


Pssm-ID: 187590 [Multi-domain]  Cd Length: 251  Bit Score: 47.83  E-value: 1.33e-07
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:cd05329 215 RFGEPEEVAALVAFLCMPAASYITGQ 240
PRK09242 PRK09242
SDR family oxidoreductase;
37-62 2.77e-07

SDR family oxidoreductase;


Pssm-ID: 181721 [Multi-domain]  Cd Length: 257  Bit Score: 47.05  E-value: 2.77e-07
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK09242 219 RVGEPEEVAAAVAFLCMPAASYITGQ 244
FabG COG1028
NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family [Lipid transport and ...
37-62 1.28e-04

NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family [Lipid transport and metabolism]; NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family is part of the Pathway/BioSystem: Fatty acid biosynthesis


Pssm-ID: 440651 [Multi-domain]  Cd Length: 249  Bit Score: 39.38  E-value: 1.28e-04
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:COG1028 214 RLGTPEEVAAAVLFLASDAASYITGQ 239
adh_short_C2 pfam13561
Enoyl-(Acyl carrier protein) reductase; This domain is found in Enoyl-(Acyl carrier protein) ...
37-60 6.19e-04

Enoyl-(Acyl carrier protein) reductase; This domain is found in Enoyl-(Acyl carrier protein) reductases.


Pssm-ID: 433310 [Multi-domain]  Cd Length: 236  Bit Score: 37.41  E-value: 6.19e-04
                          10        20
                  ....*....|....*....|....
gi 6017118     37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:pfam13561 202 RLGTPEEVANAAAFLASDLASYIT 225
TR_SDR_c cd05329
tropinone reductase-I and II (TR-1, and TR-II)-like, classical (c) SDRs; This subgroup ...
3-28 3.37e-03

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.


Pssm-ID: 187590 [Multi-domain]  Cd Length: 251  Bit Score: 35.50  E-value: 3.37e-03
                        10        20
                ....*....|....*....|....*.
gi 6017118    3 RDQRNKLTQEVSSAFSGKLNILVSSL 28
Cdd:cd05329  67 RSERQELMDTVASHFGGKLNILVNNA 92
 
Name Accession Description Interval E-value
TR_SDR_c cd05329
tropinone reductase-I and II (TR-1, and TR-II)-like, classical (c) SDRs; This subgroup ...
37-62 1.33e-07

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.


Pssm-ID: 187590 [Multi-domain]  Cd Length: 251  Bit Score: 47.83  E-value: 1.33e-07
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:cd05329 215 RFGEPEEVAALVAFLCMPAASYITGQ 240
PRK09242 PRK09242
SDR family oxidoreductase;
37-62 2.77e-07

SDR family oxidoreductase;


Pssm-ID: 181721 [Multi-domain]  Cd Length: 257  Bit Score: 47.05  E-value: 2.77e-07
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK09242 219 RVGEPEEVAAAVAFLCMPAASYITGQ 244
fabG PRK12825
3-ketoacyl-(acyl-carrier-protein) reductase; Provisional
37-62 1.50e-05

3-ketoacyl-(acyl-carrier-protein) reductase; Provisional


Pssm-ID: 237218 [Multi-domain]  Cd Length: 249  Bit Score: 42.16  E-value: 1.50e-05
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK12825 213 RSGTPEDIARAVAFLCSDASDYITGQ 238
PRK12743 PRK12743
SDR family oxidoreductase;
36-62 2.92e-05

SDR family oxidoreductase;


Pssm-ID: 237187 [Multi-domain]  Cd Length: 256  Bit Score: 41.17  E-value: 2.92e-05
                         10        20
                 ....*....|....*....|....*...
gi 6017118    36 LRLPA-PEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK12743 208 LGRPGdTHEIASLVAWLCSEGASYTTGQ 235
TR_SDR_c cd05329
tropinone reductase-I and II (TR-1, and TR-II)-like, classical (c) SDRs; This subgroup ...
49-98 3.39e-05

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.


Pssm-ID: 187590 [Multi-domain]  Cd Length: 251  Bit Score: 40.90  E-value: 3.39e-05
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6017118   49 AFLCLPAASYTT--RQEELKACLNDCKSSGLVVSGSV-----RDQRDKLIQWQAQHS 98
Cdd:cd05329  25 ELAGLGAEVYTCarNQKELDECLTEWREKGFKVEGSVcdvssRSERQELMDTVASHF 81
BKR_like_SDR_like cd05344
putative beta-ketoacyl acyl carrier protein [ACP] reductase (BKR)-like, SDR; This subgroup ...
37-63 4.32e-05

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.


Pssm-ID: 187602 [Multi-domain]  Cd Length: 253  Bit Score: 40.72  E-value: 4.32e-05
                        10        20
                ....*....|....*....|....*..
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQE 63
Cdd:cd05344 218 RVGKPEELAALIAFLASEKASYITGQA 244
fabG PRK05653
3-oxoacyl-ACP reductase FabG;
37-62 8.40e-05

3-oxoacyl-ACP reductase FabG;


Pssm-ID: 235546 [Multi-domain]  Cd Length: 246  Bit Score: 39.76  E-value: 8.40e-05
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK05653 211 RLGQPEEVANAVAFLASDAASYITGQ 236
FabG COG1028
NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family [Lipid transport and ...
37-62 1.28e-04

NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family [Lipid transport and metabolism]; NAD(P)-dependent dehydrogenase, short-chain alcohol dehydrogenase family is part of the Pathway/BioSystem: Fatty acid biosynthesis


Pssm-ID: 440651 [Multi-domain]  Cd Length: 249  Bit Score: 39.38  E-value: 1.28e-04
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:COG1028 214 RLGTPEEVAAAVLFLASDAASYITGQ 239
BKR_SDR_c cd05333
beta-Keto acyl carrier protein reductase (BKR), involved in Type II FAS, classical (c) SDRs; ...
37-62 1.56e-04

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.


Pssm-ID: 187594 [Multi-domain]  Cd Length: 240  Bit Score: 39.07  E-value: 1.56e-04
                        10        20
                ....*....|....*....|....*.
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:cd05333 206 RLGTPEEVANAVAFLASDDASYITGQ 231
PRK12827 PRK12827
short chain dehydrogenase; Provisional
37-62 1.71e-04

short chain dehydrogenase; Provisional


Pssm-ID: 237219 [Multi-domain]  Cd Length: 249  Bit Score: 38.93  E-value: 1.71e-04
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK12827 215 RLGEPDEVAALVAFLVSDAASYVTGQ 240
TER_DECR_SDR_a cd05369
Trans-2-enoyl-CoA reductase (TER) and 2,4-dienoyl-CoA reductase (DECR), atypical (a) SDR; TTER ...
37-60 2.73e-04

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.


Pssm-ID: 187627 [Multi-domain]  Cd Length: 249  Bit Score: 38.34  E-value: 2.73e-04
                        10        20
                ....*....|....*....|....
gi 6017118   37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:cd05369 214 RLGTPEEIANLALFLLSDAASYIN 237
PRK12824 PRK12824
3-oxoacyl-ACP reductase;
37-60 5.46e-04

3-oxoacyl-ACP reductase;


Pssm-ID: 183773 [Multi-domain]  Cd Length: 245  Bit Score: 37.44  E-value: 5.46e-04
                         10        20
                 ....*....|....*....|....
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:PRK12824 209 RLGTPEEIAAAVAFLVSEAAGFIT 232
adh_short_C2 pfam13561
Enoyl-(Acyl carrier protein) reductase; This domain is found in Enoyl-(Acyl carrier protein) ...
37-60 6.19e-04

Enoyl-(Acyl carrier protein) reductase; This domain is found in Enoyl-(Acyl carrier protein) reductases.


Pssm-ID: 433310 [Multi-domain]  Cd Length: 236  Bit Score: 37.41  E-value: 6.19e-04
                          10        20
                  ....*....|....*....|....
gi 6017118     37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:pfam13561 202 RLGTPEEVANAAAFLASDLASYIT 225
fabG PRK05557
3-ketoacyl-(acyl-carrier-protein) reductase; Validated
37-62 6.43e-04

3-ketoacyl-(acyl-carrier-protein) reductase; Validated


Pssm-ID: 235500 [Multi-domain]  Cd Length: 248  Bit Score: 37.48  E-value: 6.43e-04
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK05557 212 RLGQPEEIASAVAFLASDEAAYITGQ 237
fabG PRK05565
3-ketoacyl-(acyl-carrier-protein) reductase; Provisional
37-62 8.82e-04

3-ketoacyl-(acyl-carrier-protein) reductase; Provisional


Pssm-ID: 235506 [Multi-domain]  Cd Length: 247  Bit Score: 37.13  E-value: 8.82e-04
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK05565 212 RLGKPEEIAKVVLFLASDDASYITGQ 237
PRK06125 PRK06125
short chain dehydrogenase; Provisional
37-60 8.92e-04

short chain dehydrogenase; Provisional


Pssm-ID: 235703 [Multi-domain]  Cd Length: 259  Bit Score: 36.95  E-value: 8.92e-04
                         10        20
                 ....*....|....*....|....
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:PRK06125 220 RPATPEEVADLVAFLASPRSGYTS 243
SDR_c cd05233
classical (c) SDRs; SDRs are a functionally diverse family of oxidoreductases that have a ...
32-63 1.89e-03

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.


Pssm-ID: 212491 [Multi-domain]  Cd Length: 234  Bit Score: 36.11  E-value: 1.89e-03
                        10        20        30
                ....*....|....*....|....*....|..
gi 6017118   32 KTFVLRLPAPEEIASLVAFLCLPAASYTTRQE 63
Cdd:cd05233 199 AIPLGRLGTPEEVAEAVVFLASDEASYITGQV 230
PRK12829 PRK12829
short chain dehydrogenase; Provisional
37-62 2.48e-03

short chain dehydrogenase; Provisional


Pssm-ID: 183778 [Multi-domain]  Cd Length: 264  Bit Score: 35.80  E-value: 2.48e-03
                         10        20
                 ....*....|....*....|....*.
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK12829 228 RMVEPEDIAATALFLASPAARYITGQ 253
CR_SDR_c cd08936
Porcine peroxisomal carbonyl reductase like, classical (c) SDR; This subgroup contains porcine ...
29-60 2.86e-03

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.


Pssm-ID: 187641 [Multi-domain]  Cd Length: 256  Bit Score: 35.60  E-value: 2.86e-03
                        10        20        30
                ....*....|....*....|....*....|..
gi 6017118   29 LMLKTFVLRLPAPEEIASLVAFLCLPAASYTT 60
Cdd:cd08936 211 MKETLRIRRLGQPEDCAGIVSFLCSEDASYIT 242
TR_SDR_c cd05329
tropinone reductase-I and II (TR-1, and TR-II)-like, classical (c) SDRs; This subgroup ...
3-28 3.37e-03

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.


Pssm-ID: 187590 [Multi-domain]  Cd Length: 251  Bit Score: 35.50  E-value: 3.37e-03
                        10        20
                ....*....|....*....|....*.
gi 6017118    3 RDQRNKLTQEVSSAFSGKLNILVSSL 28
Cdd:cd05329  67 RSERQELMDTVASHFGGKLNILVNNA 92
PRK12826 PRK12826
SDR family oxidoreductase;
35-62 6.77e-03

SDR family oxidoreductase;


Pssm-ID: 183775 [Multi-domain]  Cd Length: 251  Bit Score: 34.51  E-value: 6.77e-03
                         10        20
                 ....*....|....*....|....*...
gi 6017118    35 VLRLPAPEEIASLVAFLCLPAASYTTRQ 62
Cdd:PRK12826 212 LGRLGEPEDIAAAVLFLASDEARYITGQ 239
PRK08265 PRK08265
short chain dehydrogenase; Provisional
37-60 9.83e-03

short chain dehydrogenase; Provisional


Pssm-ID: 236209 [Multi-domain]  Cd Length: 261  Bit Score: 34.21  E-value: 9.83e-03
                         10        20
                 ....*....|....*....|....
gi 6017118    37 RLPAPEEIASLVAFLCLPAASYTT 60
Cdd:PRK08265 211 RVGDPEEVAQVVAFLCSDAASFVT 234
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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