作者:Walid M. Abdelmagid、Niusha Mahmoodi、Martin E. Tanner
DOI:10.1016/j.bmcl.2020.127577
日期:2020.11
inhibitor bound with high micromolar affinity and did not bind more tightly than an isosteric inhibitor lacking the guanidinium functionality. When tested against the Type I isopentenyl diphosphate:dimethylallyl diphosphate isomerase from Escherichia coli, the inhibitor bound with a Ki value of 120 nM, which was 400 times greater than its isosteric counterpart. This strategy of inhibition was much more
设计一种带有附加到胍基官能团上的膦基膦酸酯基的抑制剂,以抑制从二甲基烯丙基二磷酸产生碳正离子的酶。当针对人类法呢基二磷酸合酶进行测试时,该抑制剂以高微摩尔亲和力结合,并且与缺乏胍基官能团的等排抑制剂相比,结合不紧密。当针对来自大肠杆菌的I型异戊烯基二磷酸异戊烯基:二甲基烯丙基二磷酸异构酶进行测试时,该抑制剂与K i结合120 nM的值,是其等排对应物的400倍。这种抑制策略对于产生碳阳离子的酶更为有效,该碳阳离子不能通过共振和离子对稳定,这可能是因为酶上有更多的进化压力来稳定阳离子。