Aminopeptidase S

Aminopeptidase S (EC 3.4.11.24, Mername-AA022 peptidase, SGAP, aminopeptidase (Streptomyces griseus), Streptomyces griseus aminopeptidase, S. griseus AP, double-zinc aminopeptidase) is an enzyme. This enzyme catalyses the following chemical reaction

Release of an N-terminal amino acid with a preference for large hydrophobic amino-terminus residues

This enzyme contains two zinc molecules in its active site and is activated by Ca²⁺.