Phosphotriesterase: an enzyme in search of its natural substrate.

F M Raushel, H M Holden
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引用次数: 71

Abstract

The bacterial PTE is able to catalyze the hydrolysis of a wide range of organophosphate nerve agents. The active site has been shown to consist of a unique binuclear metal center that has evolved to deliver hydroxide to the site of bond cleavage. The reaction rate for the hydrolysis of activated substrates such as paraoxon is limited by product release or an associated protein conformational change.

磷酸三酯酶:一种寻找天然底物的酶。
细菌PTE能够催化水解多种有机磷神经毒剂。活性位点由一个独特的双核金属中心组成,该中心已演变为将氢氧化物输送到键解理位点。活性底物如对氧磷的水解反应速率受产物释放或相关蛋白质构象变化的限制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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