Carboxypeptidase M () is an enzyme that in humans is encoded by the CPM gene. Function
Carboxypeptidase M is a membrane-bound arginine/lysine carboxypeptidase. This enzyme catalyses cleavage of C-terminal arginine or lysine residues from polypeptides. Its expression is associated with monocyte to macrophage differentiation. This encoded protein contains hydrophobic regions at the amino and carboxy termini and has 6 potential asparagine-linked glycosylation sites. The active site residues of carboxypeptidases A and B are conserved in this protein. Three alternatively spliced transcript variants encoding the same protein have been described for this gene.
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