Alternative Mechanistic Strategy for Enzyme Catalysis in a Ni-dependent Lactate Racemase(LarA):Inter

来源 :第十三届全国量子化学会议 | 被引量 : 0次 | 上传用户：yebailin

【摘要】

：

【作者】

：

Xiaoyong Zhang Lung Wa Chung

【机构】

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Department of Chemistry,South University of Science and Technology of China,Shenzhen,518055

【出处】

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第十三届全国量子化学会议

【发表日期】

：

2017年10期

【关键词】

：

Density functional calculations Enzyme catalysis Metalloenzymes Nickel Racemase

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　　Recently,a lactate racemase was discovered as a new Ni-dependent enzyme with a unique tethered NAD-like cofactor.[1] We report the computational study aimed at decipher ing the previously unclear role of the Ni-tethered cofactor in reactions of lactate racemase.[2] Our results suggest that the formation of the metastable and reactive NADH-like pyruvate intermediate should avoid a thermodynamic sink by forming a stable pyruvate product and instead promoting its further transformation to produce stable lactate isomers.

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Alternative Mechanistic Strategy for Enzyme Catalysis in a Ni-dependent Lactate Racemase(LarA):Inter

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