Carboxypeptidase C (EC 188.8.131.52, carboxypeptidase Y, serine carboxypeptidase I, cathepsin A, lysosomal protective protein, deamidase, lysosomal carboxypeptidase A, phaseolin) is an enzyme. This enzyme catalyses the following chemical reaction
Release of a C-terminal amino acid with broad specificity
This enzyme is a carboxypeptidase with optimum activity at pH 4.5-6.0. It is inhibited by diisopropyl fluorophosphate.