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Conserved domains on  [gi|1720353234|ref|XP_030107498|]
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dehydrogenase/reductase SDR family member on chromosome X homolog isoform X3 [Mus musculus]

Protein Classification

Rossmann-fold NAD(P)-binding domain-containing protein( domain architecture ID 229380)

Rossmann-fold NAD(P)-binding domain-containing protein may function as an oxidoreductase

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 ...
6-192 5.20e-48

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 cd05327:

Pssm-ID: 473865 [Multi-domain]  Cd Length: 269  Bit Score: 158.16  E-value: 5.20e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALRASgaegRGSRVVTVGSATHYVGTVDMADLH--GRHAYSPYAA 83
Cdd:cd05327    88 AGIMAPPRRLTKDGFELQFAVNYLGHFLLTNLLLPVLKAS----APSRIVNVSSIAHRAGPIDFNDLDleNNKEYSPYKA 163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  84 YAQSKLALALFALQLQRILdaRGDPVTSNMADPGVVDTELYRHAGWvLRTVKRFLGWLVFKSPEEGAWTLVYAAAAPELE 163
Cdd:cd05327   164 YGQSKLANILFTRELARRL--EGTGVTVNALHPGVVRTELLRRNGS-FFLLYKLLRPFLKKSPEQGAQTALYAATSPELE 240
                         170       180
                  ....*....|....*....|....*....
gi 1720353234 164 GVGGRYLRDEAEAEPLGTARDQELQRRLW 192
Cdd:cd05327   241 GVSGKYFSDCKIKMSSSEALDEELAEKLW 269
 
Name Accession Description Interval E-value
retinol-DH_like_SDR_c_like cd05327
retinol dehydrogenase (retinol-DH), Light dependent Protochlorophyllide (Pchlide) ...
6-192 5.20e-48

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.


Pssm-ID: 212492 [Multi-domain]  Cd Length: 269  Bit Score: 158.16  E-value: 5.20e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALRASgaegRGSRVVTVGSATHYVGTVDMADLH--GRHAYSPYAA 83
Cdd:cd05327    88 AGIMAPPRRLTKDGFELQFAVNYLGHFLLTNLLLPVLKAS----APSRIVNVSSIAHRAGPIDFNDLDleNNKEYSPYKA 163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  84 YAQSKLALALFALQLQRILdaRGDPVTSNMADPGVVDTELYRHAGWvLRTVKRFLGWLVFKSPEEGAWTLVYAAAAPELE 163
Cdd:cd05327   164 YGQSKLANILFTRELARRL--EGTGVTVNALHPGVVRTELLRRNGS-FFLLYKLLRPFLKKSPEQGAQTALYAATSPELE 240
                         170       180
                  ....*....|....*....|....*....
gi 1720353234 164 GVGGRYLRDEAEAEPLGTARDQELQRRLW 192
Cdd:cd05327   241 GVSGKYFSDCKIKMSSSEALDEELAEKLW 269
PRK06196 PRK06196
oxidoreductase; Provisional
6-203 1.56e-25

oxidoreductase; Provisional


Pssm-ID: 235736 [Multi-domain]  Cd Length: 315  Bit Score: 100.91  E-value: 1.56e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALrasgAEGRGSRVVTVGSATHYVGTVDMADLHGRHAYSPYAAYA 85
Cdd:PRK06196  107 AGVMACPETRVGDGWEAQFATNHLGHFALVNLLWPAL----AAGAGARVVALSSAGHRRSPIRWDDPHFTRGYDKWLAYG 182
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  86 QSKLALALFALQlqriLDARGDP--VTSNMADPGVVDTELYRHagwVLRTVKRFLGWL---------VFKSPEEGAWTLV 154
Cdd:PRK06196  183 QSKTANALFAVH----LDKLGKDqgVRAFSVHPGGILTPLQRH---LPREEQVALGWVdehgnpidpGFKTPAQGAATQV 255
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 1720353234 155 YAAAAPELEGVGGRYLRDEAEAEPLGT----------ARDQELQRRLWAEGLRLTGAGG 203
Cdd:PRK06196  256 WAATSPQLAGMGGLYCEDCDIAEPTPKdapwsgvrphAIDPEAAARLWALSAALTGVDA 314
 
Name Accession Description Interval E-value
retinol-DH_like_SDR_c_like cd05327
retinol dehydrogenase (retinol-DH), Light dependent Protochlorophyllide (Pchlide) ...
6-192 5.20e-48

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.


Pssm-ID: 212492 [Multi-domain]  Cd Length: 269  Bit Score: 158.16  E-value: 5.20e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALRASgaegRGSRVVTVGSATHYVGTVDMADLH--GRHAYSPYAA 83
Cdd:cd05327    88 AGIMAPPRRLTKDGFELQFAVNYLGHFLLTNLLLPVLKAS----APSRIVNVSSIAHRAGPIDFNDLDleNNKEYSPYKA 163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  84 YAQSKLALALFALQLQRILdaRGDPVTSNMADPGVVDTELYRHAGWvLRTVKRFLGWLVFKSPEEGAWTLVYAAAAPELE 163
Cdd:cd05327   164 YGQSKLANILFTRELARRL--EGTGVTVNALHPGVVRTELLRRNGS-FFLLYKLLRPFLKKSPEQGAQTALYAATSPELE 240
                         170       180
                  ....*....|....*....|....*....
gi 1720353234 164 GVGGRYLRDEAEAEPLGTARDQELQRRLW 192
Cdd:cd05327   241 GVSGKYFSDCKIKMSSSEALDEELAEKLW 269
retinol-DH_like_SDR_c cd09807
retinol dehydrogenases (retinol-DHs), classical (c) SDRs; Classical SDR-like subgroup ...
6-194 4.04e-39

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.


Pssm-ID: 212495 [Multi-domain]  Cd Length: 274  Bit Score: 135.29  E-value: 4.04e-39
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALRASGAegrgSRVVTVGSATHYVGTVDMADLHGRHAYSPYAAYA 85
Cdd:cd09807    88 AGVMRCPYSKTEDGFEMQFGVNHLGHFLLTNLLLDLLKKSAP----SRIVNVSSLAHKAGKINFDDLNSEKSYNTGFAYC 163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  86 QSKLALALFALQLQRILdaRGDPVTSNMADPGVVDTELYRHAGW---VLRTVKRFLGWLVFKSPEEGAWTLVYAAAAPEL 162
Cdd:cd09807   164 QSKLANVLFTRELARRL--QGTGVTVNALHPGVVRTELGRHTGIhhlFLSTLLNPLFWPFVKTPREGAQTSIYLALAEEL 241
                         170       180       190
                  ....*....|....*....|....*....|..
gi 1720353234 163 EGVGGRYLRDEAEAEPLGTARDQELQRRLWAE 194
Cdd:cd09807   242 EGVSGKYFSDCKLKEPAPEAMDEETARRLWEI 273
PRK06196 PRK06196
oxidoreductase; Provisional
6-203 1.56e-25

oxidoreductase; Provisional


Pssm-ID: 235736 [Multi-domain]  Cd Length: 315  Bit Score: 100.91  E-value: 1.56e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALrasgAEGRGSRVVTVGSATHYVGTVDMADLHGRHAYSPYAAYA 85
Cdd:PRK06196  107 AGVMACPETRVGDGWEAQFATNHLGHFALVNLLWPAL----AAGAGARVVALSSAGHRRSPIRWDDPHFTRGYDKWLAYG 182
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  86 QSKLALALFALQlqriLDARGDP--VTSNMADPGVVDTELYRHagwVLRTVKRFLGWL---------VFKSPEEGAWTLV 154
Cdd:PRK06196  183 QSKTANALFAVH----LDKLGKDqgVRAFSVHPGGILTPLQRH---LPREEQVALGWVdehgnpidpGFKTPAQGAATQV 255
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 1720353234 155 YAAAAPELEGVGGRYLRDEAEAEPLGT----------ARDQELQRRLWAEGLRLTGAGG 203
Cdd:PRK06196  256 WAATSPQLAGMGGLYCEDCDIAEPTPKdapwsgvrphAIDPEAAARLWALSAALTGVDA 314
PRK06197 PRK06197
short chain dehydrogenase; Provisional
6-200 1.70e-24

short chain dehydrogenase; Provisional


Pssm-ID: 235737 [Multi-domain]  Cd Length: 306  Bit Score: 97.79  E-value: 1.70e-24
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVN----FLGHFLLTLLLLPAlrasgaegRGSRVVTVGSATHYV-GTVDMADLHGRHAYSP 80
Cdd:PRK06197  103 AGVMYTPKQTTADGFELQFGTNhlghFALTGLLLDRLLPV--------PGSRVVTVSSGGHRIrAAIHFDDLQWERRYNR 174
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  81 YAAYAQSKLALALFALQLQRILDARGDPVTSNMADPGVVDTELYRHAGWVLRTVKRFLGWLVFKSPEEGAWTLVYAAAAP 160
Cdd:PRK06197  175 VAAYGQSKLANLLFTYELQRRLAAAGATTIAVAAHPGVSNTELARNLPRALRPVATVLAPLLAQSPEMGALPTLRAATDP 254
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*....
gi 1720353234 161 ELEgvGGRYLRDEAEAEPLG---------TARDQELQRRLWAEGLRLTG 200
Cdd:PRK06197  255 AVR--GGQYYGPDGFGEQRGypkvvassaQSHDEDLQRRLWAVSEELTG 301
PRK05854 PRK05854
SDR family oxidoreductase;
6-202 8.64e-14

SDR family oxidoreductase;


Pssm-ID: 235627 [Multi-domain]  Cd Length: 313  Bit Score: 68.55  E-value: 8.64e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEP-RAETEDGFERHLGVNFLGHFLLTLLLLPALRASGAegrgsRVVTVGSATHYVGTVDMADLHGRHAYSPYAAY 84
Cdd:PRK05854  101 AGVMTPPeRQTTADGFELQFGTNHLGHFALTAHLLPLLRAGRA-----RVTSQSSIAARRGAINWDDLNWERSYAGMRAY 175
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  85 AQSKLALALFALQLQRILDARGDPVTSNMADPGVVDTELY--------RHAGWVLRTVKRFLGW-LVFKSPEEGAWTLVY 155
Cdd:PRK05854  176 SQSKIAVGLFALELDRRSRAAGWGITSNLAHPGVAPTNLLaarpevgrDKDTLMVRLIRSLSARgFLVGTVESAILPALY 255
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1720353234 156 AAAAPELEGVG-------GRYLRDEAEAEPLGTARDQELQRRLWAEGLRLTGAG 202
Cdd:PRK05854  256 AATSPDAEGGAfygprgpGELGGGPVEQALYPPLRRNAEAARLWEVSEQLTGVS 309
human_WWOX_like_SDR_c-like cd09809
human WWOX (WW domain-containing oxidoreductase)-like, classical (c)-like SDRs; Classical-like ...
6-198 2.36e-13

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.


Pssm-ID: 187669 [Multi-domain]  Cd Length: 284  Bit Score: 67.24  E-value: 2.36e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234   6 AGVMLEPRAETEDGFERHLGVNFLGHFLLTLLLLPALRASGAegrgSRVVTVGSATHY-------VGTVDMADLH-GRHA 77
Cdd:cd09809    88 AAVFALPWTLTEDGLETTFQVNHLGHFYLVQLLEDVLRRSAP----ARVIVVSSESHRftdlpdsCGNLDFSLLSpPKKK 163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  78 YSPYAAYAQSKLALALFALQLQRILDARGdpVTSNMADPG-VVDTELYRHagWVLRTVKRFLGWLVFKSPEEGAWTLVYA 156
Cdd:cd09809   164 YWSMLAYNRAKLCNILFSNELHRRLSPRG--ITSNSLHPGnMMYSSIHRN--WWVYTLLFTLARPFTKSMQQGAATTVYC 239
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|..
gi 1720353234 157 AAAPELEGVGGRYLRDEAEAEPLGTARDQELQRRLWAEGLRL 198
Cdd:cd09809   240 ATAPELEGLGGMYFNNCFRCLPSPEAQSEATAQQLWELSERL 281
LPOR_like_SDR_c_like cd09810
light-dependent protochlorophyllide reductase (LPOR)-like, classical (c)-like SDRs; Classical ...
16-200 2.32e-03

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.


Pssm-ID: 187670 [Multi-domain]  Cd Length: 311  Bit Score: 38.27  E-value: 2.32e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  16 TEDGFERHLGVNFLGHFLLTLLLLPALRASGAEGRgsRVVTVGSATHYVGTV--------DMADLHGRHA---------- 77
Cdd:cd09810   100 TADGFELTVGVNHLGHFLLTNLLLEDLQRSENASP--RIVIVGSITHNPNTLagnvppraTLGDLEGLAGglkgfnsmid 177
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720353234  78 ---YSPYAAYAQSKLALALFALQLQRILDaRGDPVTSNMADPGVV-DTELYRHAGWVLRTVKRFLGWLVFK---SPEEGA 150
Cdd:cd09810   178 ggeFEGAKAYKDSKVCNMLTTYELHRRLH-EETGITFNSLYPGCIaETGLFREHYPLFRTLFPPFQKYITKgyvSEEEAG 256
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 1720353234 151 WTLVYAAAAPELeGVGGRY---------LRDEAEAEplgtARDQELQRRLWAEGLRLTG 200
Cdd:cd09810   257 ERLAAVIADPSL-GVSGVYwswgkasgsFENQSSQE----SSDDEKARKLWEISEKLVG 310
 
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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