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.
二氨基庚二酸转氨酶(DAP-AT)是一个良好的新型抗菌药物设计潜在靶点。我们基于DAP-AT天然底物的结构,合成了一系列肽酰肼化合物。这些化合物在体外对大肠杆菌来源的DAP-AT表现出不同的抑制性质,并具有中等程度的抗大肠杆菌活性。抑制动力学的研究表明,肽酰肼及其取代物表现出两阶段慢速结合抑制作用。文章还讨论了可能的抑制机制。