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EC 1.2.7.1 Details
EC number
1.2.7.1
Accepted name
pyruvate synthase
Reaction
pyruvate + CoA + 2 oxidized ferredoxin = acetyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+
Other name(s)
pyruvate oxidoreductase,
pyruvate synthetase,
pyruvate:ferredoxin oxidoreductase,
pyruvic-ferredoxin oxidoreductase,
2-oxobutyrate synthase,
α-ketobutyrate-ferredoxin oxidoreductase,
2-ketobutyrate synthase,
α-ketobutyrate synthase,
2-oxobutyrate-ferredoxin oxidoreductase,
2-oxobutanoate:ferredoxin 2-oxidoreductase (CoA-propionylating),
2-oxobutanoate:ferredoxin 2-oxidoreductase (CoA-propanoylating)
Systematic name
pyruvate:ferredoxin 2-oxidoreductase (CoA-acetylating)
CAS registry number
9082-51-3
Comment
Contains thiamine diphosphate and [4Fe-4S] clusters. The enzyme also decarboxylates 2-oxobutyrate with lower efficiency, but shows no activity with 2-oxoglutarate. This enzyme is a member of the 2-oxoacid oxidoreductases, a family of enzymes that oxidatively decarboxylate different 2-oxoacids to form their CoA derivatives, and are differentiated based on their substrate specificity. For examples of other members of this family, see EC 1.2.7.3, 2-oxoglutarate synthase and EC 1.2.7.7, 3-methyl-2-oxobutanoate dehydrogenase (ferredoxin).
History
created 1972, modified 2003, modified 2013
EC Tree
1.2.7.9 created 2003, deleted 2005