Kassai M, Ravi RG, Shealy SJ, Grant KB. Unprecedented Acceleration of Zirconium(IV)-Assisted Peptide Hydrolysis at Neutral pH.
Inorg Chem 2004;
43:6130-2. [PMID:
15446852 DOI:
10.1021/ic049433j]
[Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
4,13-Diaza-18-crown-6 substantially increases the rate of zirconium(IV) hydrolysis of unactivated peptide amide bonds under near-physiological conditions of temperature and pH. In the presence of this azacrown ether, ZrCl(4) efficiently hydrolyses both neutral and negatively charged peptides (pH 7.0-7.3, 37-60 degrees C).
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