General methods for monitoring the activity of MurG, a GlcNAc transferase involved in bacterial cell wall biosynthesis, is disclosed. More particularly, the synthesis of simplified substrate analogs of Lipid I (the natural substrate for MurG), which function as acceptors for UDP-GlcNAc in an enzymatic reaction catalyzed by MurG, is described. Assays using the substrate analogs of the invention are further disclosed, which are useful for identifing a variety of other substrates, including inhibitors of MurG activity, for facilitating mechanistic and/or structural studies of the enzyme and for other uses. High throughput assays are also described.
本研究公开了监测参与细菌细胞壁
生物合成的 GlcNAc 转移酶 MurG 活性的一般方法。更具体地说,本发明描述了脂质 I(MurG 的天然底物)的简化底物类似物的合成,这些类似物在 MurG 催化的酶促反应中可作为
UDP-GlcNAc 的受体。进一步公开了使用本发明底物类似物的检测方法,这些检测方法可用于鉴定各种其他底物,包括 MurG 活性
抑制剂,促进酶的机理和/或结构研究以及其他用途。还介绍了高通量测定法。