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EC 1.17.1.5 Details
EC number
1.17.1.5
Accepted name
nicotinate dehydrogenase
Reaction
nicotinate + H2O + NADP+ = 6-hydroxynicotinate + NADPH + H+
Other name(s)
nicotinic acid hydroxylase, nicotinate hydroxylase
Systematic name
nicotinate:NADP+ 6-oxidoreductase (hydroxylating)
CAS registry number
9059-03-4
Comment
A flavoprotein containing non-heme iron. The enzyme is capable of acting on a variety of nicotinate analogues to varying degrees, including pyrazine-2-carboxylate, pyrazine 2,3-dicarboxylate, trigonelline and 6-methylnicotinate. The enzyme from Clostridium barkeri also possesses a catalytically essential, labile selenium that can be removed by reaction with cyanide.
History
created 1972 as EC 1.5.1.13, transferred 2004 to EC 1.17.1.5
EC Tree
1.2.1.1 created 1961, modified 1982, modified 2002, deleted 2005
1.2.1.6 created 1961, deleted 1965
1.2.1.14 created 1961, deleted 1984
1.2.1.34 created 1972, deleted 1983 [transferred to EC 1.1.1.180, deleted 1984]
1.2.1.35 created 1972, deleted 1984
1.2.1.37 created 1972, deleted 1984
1.2.1.55 created 1990, deleted 2003
1.2.1.56 created 1990, deleted 2003