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1AHI

7 ALPHA-HYDROXYSTEROID DEHYDROGENASE COMPLEXED WITH NADH AND 7-OXO GLYCOCHENODEOXYCHOLIC ACID

Functional Information from GO Data
ChainGOidnamespacecontents
A0005829cellular_componentcytosol
A0006629biological_processlipid metabolic process
A0008202biological_processsteroid metabolic process
A0008709molecular_functioncholate 7-alpha-dehydrogenase (NAD+) activity
A0016042biological_processlipid catabolic process
A0016491molecular_functionoxidoreductase activity
A0030573biological_processbile acid catabolic process
A0032787biological_processmonocarboxylic acid metabolic process
A0032991cellular_componentprotein-containing complex
A0042802molecular_functionidentical protein binding
A0051287molecular_functionNAD binding
A0106281molecular_functionchenodeoxycholate 7-alpha-dehydrogenase (NAD+) activity
B0005829cellular_componentcytosol
B0006629biological_processlipid metabolic process
B0008202biological_processsteroid metabolic process
B0008709molecular_functioncholate 7-alpha-dehydrogenase (NAD+) activity
B0016042biological_processlipid catabolic process
B0016491molecular_functionoxidoreductase activity
B0030573biological_processbile acid catabolic process
B0032787biological_processmonocarboxylic acid metabolic process
B0032991cellular_componentprotein-containing complex
B0042802molecular_functionidentical protein binding
B0051287molecular_functionNAD binding
B0106281molecular_functionchenodeoxycholate 7-alpha-dehydrogenase (NAD+) activity
Functional Information from PDB Data
site_idAC1
Number of Residues11
DetailsBINDING SITE FOR RESIDUE CHO A 301
ChainResidue
AGLY99
ANAI302
AHOH411
ASER146
AALA148
AASN151
ATYR159
AALA196
ALEU197
AVAL200
AGLN252

site_idAC2
Number of Residues22
DetailsBINDING SITE FOR RESIDUE NAI A 302
ChainResidue
AGLY18
AALA21
AGLY22
AILE23
AASP42
AILE43
ACYS67
AASP68
AILE69
AASN95
AGLY97
AILE144
ATHR145
ATYR159
ALYS163
APRO189
AGLY190
AILE192
ATHR194
AALA196
ACHO301
AHOH431

site_idAC3
Number of Residues13
DetailsBINDING SITE FOR RESIDUE CHO B 301
ChainResidue
BGLY98
BGLY99
BSER146
BALA148
BASN151
BTYR159
BALA196
BLEU197
BVAL200
BMET209
BGLN252
BNAI302
BHOH448

site_idAC4
Number of Residues23
DetailsBINDING SITE FOR RESIDUE NAI B 302
ChainResidue
BGLY18
BALA21
BGLY22
BILE23
BASP42
BILE43
BCYS67
BASP68
BILE69
BASN95
BILE144
BTHR145
BTYR159
BLYS163
BPRO189
BGLY190
BILE192
BTHR194
BALA196
BCHO301
BHOH405
BHOH436
BHOH450

Functional Information from PROSITE/UniProt
site_idPS00061
Number of Residues29
DetailsADH_SHORT Short-chain dehydrogenases/reductases family signature. SmaaenkninMtsYASSKAAAsHLVrNMA
ChainResidueDetails
ASER146-ALA174

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"8672472","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"9722677","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"8672472","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1AHI","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1FMC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"8672472","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1AHH","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AHI","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1FMC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsSite: {"description":"Transition state stabilizer","evidences":[{"source":"PubMed","id":"8672472","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"9722677","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsSite: {"description":"Lowers pKa of active site Tyr","evidences":[{"source":"PubMed","id":"8672472","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"9722677","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
AASN118
ASER146
ATYR159
ALYS163

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
BASN118
BSER146
BTYR159
BLYS163

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
AMET156
ALYS163

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
BMET156
BLYS163

site_idCSA5
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
ATYR159
ALYS163

site_idCSA6
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ybv
ChainResidueDetails
BTYR159
BLYS163

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PDB entries from 2026-01-21

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