Title : Development of potent and selective phosphinic peptide inhibitors of angiotensin-converting enzyme 2.

Pub. Date : 2008 Apr 10

PMID : 18324760






7 Functional Relationships(s)
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1 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. di- and tripeptides angiotensin converting enzyme 2 Homo sapiens
2 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. tripeptide K-26 angiotensin converting enzyme 2 Homo sapiens
3 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. tripeptides angiotensin converting enzyme 2 Homo sapiens
4 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. Proline angiotensin converting enzyme 2 Homo sapiens
5 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. Proline angiotensin converting enzyme 2 Homo sapiens
6 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. Tyrosine angiotensin converting enzyme 2 Homo sapiens
7 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. Tyrosine angiotensin converting enzyme 2 Homo sapiens