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Tripeptide aminopeptidase (EC3.4.11.4, tripeptidase, aminotripeptidase, aminoexotripeptidase, lymphopeptidase, imidoendopeptidase, peptidase B, alanine-phenylalanine-proline arylamidase, peptidase T) is an enzyme. This enzyme catalyses the following chemical reaction:
Release of the N-terminal residue from a tripeptide
This is a zinc enzyme, widely distributed in mammalian tissues.
Sachs L, Marks N (September 1982). "A highly specific aminotripeptidase of rat brain cytosol. Substrate specificity and effects of inhibitors". Biochimica et Biophysica Acta. 706 (2): 229–38. doi:10.1016/0167-4838(82)90491-5. PMID7126601.
