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EC 1.2.1.76 Details
EC number
1.2.1.76
Accepted name
succinate-semialdehyde dehydrogenase (acylating)
Reaction
succinate semialdehyde + CoA + NADP+ = succinyl-CoA + NADPH + H+
Other name(s)
succinyl-coA reductase, coenzyme-A-dependent succinate-semialdehyde dehydrogenase
Systematic name
succinate semialdehyde:NADP+ oxidoreductase (CoA-acylating)
Comment
Catalyses the NADPH-dependent reduction of succinyl-CoA to succinate semialdehyde. The enzyme has been described in Clostridium kluyveri, where it participates in succinate fermentation [1], and in Metallosphaera sedula, where it participates in the 3-hydroxypropanonate/4-hydroxybutanoate cycle, an autotrophic CO2 fixation pathway found in some thermoacidophilic archaea [2,3].
History
created 2009
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