Activating Water: Efficient Intramolecular General Base Catalysis of the Hydrolysis of a Phosphate Triester
作者:Anthony J. Kirby、Michelle Medeiros、Pedro S. M. Oliveira、Tiago A. S. Brandão、Faruk Nome
DOI:10.1002/chem.200901096
日期:2009.8.24
We have identified the first highly efficient intramolecular general base catalysis (IGBC) of a hydrolysis reaction, in a system where two general bases are available to assist the attack of the same nucleophilic water molecule. The suggested mechanism, available uniquely to a phosphate triester model, is readily available in enzyme active sites, and the results suggest a possible solution to the long‐unsolved
我们已经确定了水解反应的第一个高效分子内通用碱催化 (IGBC),在一个系统中,两个通用碱可用于帮助同一个亲核水分子的攻击。所建议的机制是磷酸三酯模型独有的,在酶活性位点中很容易获得,结果为酶如何能够激活水分子成为高效亲核试剂这一长期悬而未决的问题提供了可能的解决方案。