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EC 1.14.13.97 Details
EC number
1.14.13.97
Accepted name
taurochenodeoxycholate 6α-hydroxylase
Reaction
(1) taurochenodeoxycholate + NADPH + H+ + O2 = taurohyocholate + NADP+ + H2O;;(2) lithocholate + NADPH + H+ + O2 = hyodeoxycholate + NADP+ + H2O
Other name(s)
CYP3A4, CYP4A21, taurochenodeoxycholate 6α-monooxygenase
Systematic name
taurochenodeoxycholate,NADPH:oxygen oxidoreductase (6α-hydroxylating)
CAS registry number
105669-85-0
Comment
A heme-thiolate protein (P-450). 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 [5].
History
created 2005, deleted 2018
EC Tree
1.14.13.45 created 1992, deleted 2003