Synthesis of analogs of the carboxyl protease inhibitor pepstatin. Effect of structure in subsite P3 on inhibition of pepsin
作者:Daniel H. Rich、Michael S. Bernatowicz
DOI:10.1021/jm00349a005
日期:1982.7
A series of pepstatin analogues having minimum structural requirements for tight-binding inhibition has been synthesized and tested on porcine pepsin. Subtle changes in the geometry and size of side chains at the valine-1 position of pepstatin were found to dramatically affect inhibitor potency as well a the type of kinetic behavior observed. The inhibitors reported here can be grouped into two categories:
已经合成了一系列对胃粘连具有最小结构要求的胃酶抑素类似物,并在猪胃蛋白酶上进行了测试。发现胃酶抑素的缬氨酸-1位点的侧链的几何形状和大小的细微变化会显着影响抑制剂的效力以及观察到的动力学行为类型。此处报道的抑制剂可分为两类:更有效的抑制剂是缓慢结合的抑制剂,即表现出缓慢的,时间依赖性的抑制:Ki值大于10(-8)M的较弱的抑制剂不是时间。依赖性抑制剂。提出了最小动力学机制来解释观察到的动力学行为。