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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
1.2.3.2 created 1961, deleted 1984
1.2.3.10 created 1990, deleted 2003
1.2.3.12 created 2000, deleted 2003