Peptide inhibitors of N-succinyl diaminopimelic acid aminotransferase (DAP-AT): A novel class of antimicrobial compounds.
作者:Russell J. Cox、James A. Schouten、Rosie A. Stentiford、Katrina J. Wareing
DOI:10.1016/s0960-894x(98)00149-8
日期:1998.4
Dipeptide substrates of N-Succinyl Diaminopimelic Acid Aminotransferase (DAP-AT) were converted to hydrazines by treatment with hydrazine and cyanoborohydride. These compounds were tested in vitro as inhibitors of DAP-AT from E. coli and in vivo as antibiotics. The hydrazino-dipeptides showed potent slow binding inhibition of DAP-AT as well as antimicrobial activity. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Synthesis and in vitro enzyme activity of peptide derivatives of bacterial cell wall biosynthesis inhibitors
作者:Russell J. Cox、Helen Jenkins、James A. Schouten、Rosie A. Stentiford、Katrina J. Wareing
DOI:10.1039/b002701o
日期:——
The enzyme diaminopimelate aminotransferase (DAP-AT) is a good potential target for the design of novel antibacterial agents. We have synthesised a series of peptide hydrazines based on the structure of the natural substrate of DAP-AT. These compounds show varied inhibition properties in vitrovs. DAP-AT from E. coli as well as moderate antimicrobial activity vs. E. coli. Examination of the kinetics of inhibition reveals that hydrazine, as well as the substituted hydrazino-peptides, shows two-phase slow-binding inhibition. Possible mechanisms for inhibition are discussed.