Peptidase M14 Succinylglutamate desuccinylase (ASTE, also known as N-succinyl-L-glutamate amidohydrolase, N2-succinylglutamate desuccinylase, and SGDS; EC 3.5.1.96) belongs to the Succinylglutamate desuccinylase (ASTE)/aspartoacylase (ASPA) subfamily of the M14 family of metallocarboxypeptidases. This group includes succinylglutamate desuccinylase that catalyzes the fifth and last step in arginine catabolism by the arginine succinyltransferase pathway. It hydrolyzes N-succinyl-L-glutamate to succinate and L-glutamate.
Comment:Metallocarboxypeptidases share the zinc binding motif HXXE...H, where the zinc ion is penta-coordinated to ND1 atoms of the histidines, OE1 and OE2 atoms of the glutamic acid, and to a water molecule in a slightly distorted tetrahedral manner.
Structure:1YW4_A: Chromobacterium violaceum succinylglutamate desuccinylase bound to zinc; contacts at 3.5A
Jiyao W et al.(2023). "The conserved domain database in 2023.",