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EC 1.1.1.159 Details
EC number
1.1.1.159
Accepted name
7α-hydroxysteroid dehydrogenase
Reaction
cholate + NAD+ = 3α,12α-dihydroxy-7-oxo-5β-cholan-24-oate + NADH + H+
Other name(s)
7α-hydroxy steroid dehydrogenase, 7α-HSDH
Systematic name
7α-hydroxysteroid:NAD+ 7-oxidoreductase
CAS registry number
39361-64-3
Comment
Catalyses the oxidation of the 7α-hydroxy group of bile acids and alcohols both in their free and conjugated forms. The Bacteroides fragilis and Clostridium enzymes can also utilize NADP+.
History
created 1976, modified 1980
EC Tree
1.1.1.68 created 1965, deleted 1978 [transferred to EC 1.1.99.15, deleted 1980]
1.1.1.70 created 1965, deleted 1978
1.1.1.74 created 1972, deleted 1976
1.1.1.89 created 1972, deleted 1976
1.1.1.109 created 1972, deleted 1976
1.1.1.139 created 1972, deleted 1978
1.1.1.155 created 1976, deleted 2004
1.1.1.171 created 1978, deleted 1984
1.1.1.180 created 1983, deleted 1984
1.1.1.182 created 1983, deleted 1990
1.1.1.204 created 1972 as EC 1.2.1.37, transferred 1984 to EC 1.1.1.204, modified 1989, deleted 2004
1.1.1.242 created 1992, deleted 2001
1.1.1.249 provisional version created 1999, deleted 1999 (reinstated 2001 as EC 2.5.1.46)
1.1.1.253 created 1999, deleted 2003