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EC 2.5.1.64 Details
EC number
2.5.1.64
Accepted name
2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase
Reaction
2-oxoglutarate + isochorismate = (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate + pyruvate + CO2
Other name(s)
2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase—α-ketoglutarate decarboxylase, 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic acid synthase, 6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate synthase, SHCHC synthase, 2-oxoglutarate decarboxylase/SHCHC synthase, (1R,6R)-2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase, MenD
Systematic name
isochorismate:2-oxoglutarate:cyclodienyltransferase (decarboxylating, pyruvate-forming)
CAS registry number
122007-88-9
Comment
In the first step of the reaction, the oxoglutarate is decarboxylated and an adduct of the succinic semialdehyde is formed with thiamine diphosphate of the enzyme, as in both E1 of the 2-oxoglutarate dehydrogenase complex [EC 1.2.4.2, oxoglutarate dehydrogenase (succinyl-transferring)] and in the reaction of 2-oxoglutarate decarboxylase (EC 4.1.1.71), which liberates free succinic semialdehyde.
History
created 2003, deleted 2008
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999