Inhibitors Designed for Presenilin 1 by Means of Aspartic Acid Activation. Preliminary Communication
作者:Gregor Larbig、Andrea Zall、Boris Schmidt
DOI:10.1002/hlca.200490208
日期:2004.9
based on the known inhibitor DAPT (1), e.g., the N-terminally functionalized diazo compound 4 or the C-terminally acid-labile (cyclopropylmethyl)ester 11, which were designed to react in the specific acidic active-site environment of the aspartic protease presenilin 1. The acid-labile DAPT analogues 11–13, indeed, displayed strong inhibition in a cell-free γ-secretase assay.
γ-分泌酶是一种对阿尔茨海默氏痴呆症至关重要的多蛋白天冬氨酸蛋白酶,目前尚无法用于NMR实验,到目前为止,它已经摆脱了结晶现象。用反应性探针对天冬氨酸蛋白酶进行位置扫描可为药物开发提供必要的结构信息。在这里,我们描述了基于已知的酶抑制剂DAPT(酸不稳定的化合物的合成1),例如,N-末端官能化重氮化合物4或C-末端酸不稳定(环丙基甲基)酯11,其被设计成反应在天冬氨酸蛋白酶早老蛋白1的特定酸性活性位点环境。对酸不稳定的DAPT类似物11 – 13实际上,在无细胞的γ-分泌酶测定中显示出强烈的抑制作用。