Gly-Xaa carboxypeptidase (EC 18.104.22.168, glycine carboxypeptidase, carboxypeptidase a, carboxypeptidase S, peptidase alpha, yeast carboxypeptidase) is an enzyme. This enzyme catalyses the following chemical reaction
Release of a C-terminal amino acid from a peptide in which glycine is the penultimate amino acid, e.g. Z-Gly!Leu
This enzyme is isolated from yeast.