Carboxypeptidase is a protease enzyme that hydrolyzes (cleaves) a peptide bond at the carboxy-terminal (C-terminal) end of aprotein or peptide. Contrast with an aminopeptidase, which cleaves peptide bonds at the other end of the protein. Humans, animals, and plants contain several types of carboxypeptidases that have diverse functions ranging from catabolism to protein maturation. Carboxypeptidases function involved in the indigestion of food, biosynthesis of neuroendocrine peptides, blood clotting, growth factor production, wound healing, reproduction, and many other processes.