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EC 3.5.3.23 Details
EC number
3.5.3.23
Accepted name
N-succinylarginine dihydrolase
Reaction
N2-succinyl-L-arginine + 2 H2O = N2-succinyl-L-ornithine + 2 NH3 + CO2
Other name(s)
N2-succinylarginine dihydrolase, arginine succinylhydrolase, SADH, AruB, AstB, 2-N-succinyl-L-arginine iminohydrolase (decarboxylating)
Systematic name
N2-succinyl-L-arginine iminohydrolase (decarboxylating)
Comment
Arginine, N2-acetylarginine and N2-glutamylarginine do not act as substrates [3]. This is the second enzyme in the arginine succinyltransferase (AST) pathway for the catabolism of arginine [1]. This pathway converts the carbon skeleton of arginine into glutamate, with the concomitant production of ammonia and conversion of succinyl-CoA into succinate and CoA. The five enzymes involved in this pathway are EC 2.3.1.109 (arginine N-succinyltransferase), EC 3.5.3.23 (N-succinylarginine dihydrolase), EC 2.6.1.81 (succinylornithine transaminase), EC 1.2.1.71 (succinylglutamate semialdehyde dehydrogenase) and EC 3.5.1.96 (succinylglutamate desuccinylase).
History
created 2006
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