Transition States, analogues, and drug development.

Transition States, analogues, and drug development.
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DOI:
10.1021/cb300631k
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发表时间:
2013-01-18
影响因子:
4
通讯作者:
Schramm, Vern L.
Schramm, Vern L.
中科院分区:
生物学2区
文献类型:
--
作者:
Schramm, Vern L.

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酶通过在FSEC到PSEC时间尺度上的动态构象搜索来实现它们的过渡态。处于酶过渡态的反应物的模拟物通过稳定通过进化形成过渡态而优化的构象,与酶紧密结合。过渡态类似物将短暂的过渡态转变为稳定的热力学状态,而不是形成瞬变过渡态几何结构。通过结合动力学同位素效应和计算化学来理解酶的过渡态。过渡态的类似物可以比底物更紧密地结合数百万倍,并显示出针对几个靶点的药物开发前景。
Enzymes achieve their transition states by dynamic conformational searches on the fsec to psec timescale. Mimics of reactants at enzymatic transition states bind tightly to enzymes by stabilizing the conformation optimized through evolution for transition state formation. Instead of forming the transient transition state geometry, transition state analogues convert the short-lived transition state to a stable thermodynamic state. Enzymatic transition states are understood by combining kinetic isotope effects and computational chemistry. Analogues of the transition state can bind millions of times tighter than substrates and show promise for drug development for several targets.
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