作者:Russell J. Cox、Jeremy Durston、David I. Roper
DOI:10.1039/b201727j
日期:2002.4.9
The synthesis of a novel epoxide inhibitor 6 of meso-DAP epimerase was achieved. A new and convenient assay for meso-DAP epimerase was devised which is a considerable improvement on previously reported assay methods. This assay was used to determine the inhibitory properties of 6. The epoxide 6 shows limited competitive inhibition vs. meso-DAP epimerase, but clear time dependent inhibition indicative of the expected covalent attachment at the active site. Epoxide 6, although an effective inhibitor of meso-DAP epimerase, was unstable at pH 7.3 in aqueous buffer, being hydrolysed to the corresponding diol.
成功合成了新型环氧化物抑制剂6,用于消旋二氨基庚二酸表异构酶。设计了一种新的便捷消旋二氨基庚二酸表异构酶检测方法,相较于先前报道的检测方法有显著改进。该检测方法被用于确定抑制剂6的抑制特性。环氧化物6对消旋二氨基庚二酸表异构酶显示出有限的竞争性抑制,但存在明显的随时间递增的抑制作用,表明预期活性部位发生了共价结合。环氧化物6虽然是消旋二氨基庚二酸表异构酶的有效抑制剂,但在pH 7.3的水性缓冲液中不稳定,会水解生成对应的二醇。