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ENZYME

ENZYME entry: EC 1.14.14.57

PURL: https://purl.expasy.org/enzyme/EC/1.14.14.57
Accepted Name
taurochenodeoxycholate 6alpha-hydroxylase
Alternative Name(s)
CYP3A4
CYP4A21
taurochenodeoxycholate 6alpha-monooxygenase
Reaction catalysed
  • taurochenodeoxycholate + reduced [NADPH--hemoprotein reductase] + O2 = taurohyocholate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
  • lithocholate + reduced [NADPH--hemoprotein reductase] + O2 = hyodeoxycholate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
Comment(s)
  • Requires cytochrome b5 for maximal activity.
  • Acts on taurochenodeoxycholate, taurodeoxycholate and less readily on lithocholate and chenodeoxycholate.
  • In adult pig (Sus scrofa), hyocholic acid replaces cholic acid as a primary bile acid.
  • Formerly EC 1.14.13.97.
Cross-references
BRENDA1.14.14.57
EC2PDB1.14.14.57
ExplorEnz1.14.14.57
KEGG Ligand Database for Enzyme Nomenclature1.14.14.57
IUBMB Enzyme Nomenclature1.14.14.57
MEDLINEFind literature relating to 1.14.14.57
MetaCyc1.14.14.57
Rhea expert-curated reactions1.14.14.57
UniProtKB/Swiss-Prot
Q9GJX5, CP4AL_PIG

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