Abstract:
:Angiotensin-converting enzyme 2 (ACE2), a recently identified human homologue of angiotensin-converting enzyme, is a zinc metallocarboxypeptidase which may play a unique role in cardiovascular and renal function. Here we report the discovery of potent and selective inhibitors of ACE2, which have been identified by evaluating a series of phosphinic di- and tripeptides of the general formula: Z-Xaa(PO 2-CH 2)YaaOH and Ac-Zaa-Xaa(PO 2-CH 2)YaaOH. The most potent inhibitor in this series is a tripeptide that displays a K i value of 0.4 nM toward ACE2 and is 3 orders of magnitude less potent toward carboxypeptidase A. Phosphinic tripeptides exhibit high potency exclusively when the Xaa position is occupied by a pseudoproline. A model of interaction between one inhibitor of this series and ACE2 suggests that the critical role played by a proline in inhibitors, but also for substrates hydrolysis, may rely on the presence of Tyr (510) in the ACE2 active site.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Mores A,Matziari M,Beau F,Cuniasse P,Yiotakis A,Dive Vdoi
10.1021/jm701275zsubject
Has Abstractpub_date
2008-04-10 00:00:00pages
2216-26issue
7eissn
0022-2623issn
1520-4804journal_volume
51pub_type
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