IUBMB Enzyme Nomenclature


Accepted name: angiotensin-converting enzyme 2

Reaction: angiotensin II + H2O = angiotensin-(1-7) + L-phenylalanine

Other name(s): ACE-2; ACE2; hACE2; angiotensin converting enzyme 2; angiotensin converting enzyme-2; Tmem27

Comments: A transmembrane glycoprotein with an extracellular catalytic domain. Angiotensin-converting enzyme 2 functions as a carboxypeptidase, cleaving a single C-terminal residue from a distinct range of substrates [2]. Catalytic efficiency is 400-fold higher with angiotensin II (1-8) as a substrate than with angiotensin I (1-10). Angiotensin-converting enzyme 2 also efficiently hydrolyzes des-Arg9-bradykinin, but it does not hydrolyze bradykinin [1]. In peptidase family M2.

Links to other databases: BRENDA, EXPASY, KEGG, MEROPS, Metacyc, PDB, CAS registry number:


1. Vickers, C., Hales, P., Kaushik, V., Dick, L., Gavin, J., Tang, J., Godbout, K., Parsons, T., Baronas, E., Hsieh, F., Acton, S., Patane, M., Nichols, A. and Tummino, P. Hydrolysis of biological peptides by human angiotensin-converting enzyme-related carboxypeptidase. J. Biol. Chem. 277 (2002) 14838-14843. [PMID: 11815627]

2. Lambert, D.W., Hooper, N.M. and Turner, A.J. Angiotensin-converting enzyme 2 and new insights into the renin-angiotensin system. Biochem. Pharmacol. 75 (2008) 781-786. [PMID: 17897633]

3. Towler, P., Staker, B., Prasad, S.G., Menon, S., Tang, J., Parsons, T., Ryan, D., Fisher, M., Williams, D., Dales, N.A., Patane, M.A. and Pantoliano, M.W. ACE2 X-ray structures reveal a large hinge-bending motion important for inhibitor binding and catalysis. J. Biol. Chem. 279 (2004) 17996-18007. [PMID: 14754895]

[EC created 2009]

Return to EC 3.4.17 home page
Return to EC 3.4 home page
Return to EC 3 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page