IUBMB Enzyme Nomenclature


Accepted name: dipeptidyl-peptidase III

Reaction: Release of an N-terminal dipeptide from a peptide comprising four or more residues, with broad specificity. Also acts on dipeptidyl 2-naphthylamides.

Other names: dipeptidyl aminopeptidase III; dipeptidyl arylamidase III; enkephalinase B; red cell angiotensinase

Comments: A cytosolic peptidase that is active at neutral pH. It has broad activity on peptides, although it is highly selective for Arg-Arg-2-naphthylamide, at pH 9.2. Active in the hydrolysis of enkephalins. A metallopeptidase, the type example of peptidase family M49.

Links to other databases: BRENDA, EXPASY, KEGG, MEROPS, Metacyc, PDB, CAS registry number: 77464-87-0


1. McDonald, J.K. Dipeptidyl-peptidase III. In: Barrett, A.J., Rawlings, N.D. and Woessner, J.F. (Eds.), Handbook of Proteolytic Enzymes, Academic Press, London, 1998, pp. 536-538.

2. Fukasawa, K., Fukasawa, K.M., Iwamoto, H., Hirose, J. and Harada, M. The HELLGH motif of rat liver dipeptidyl peptidase III is involved in zinc coordination and the catalytic activity of the enzyme. Biochemistry 38 (1999) 8299-8303. [PMID: 10387075]

[EC created 1981, modified 2001]

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