期刊
Chemistry - A European Journal
标题
Alternative Mechanistic Strategy for Enzyme Catalysis in a Ni-Dependent Lactate Racemase (LarA): Intermediate Destabilization by the Cofactor
作者
Xiaoyong Zhang, Prof. Dr. Lung W. Chung
摘要
The unique role of a new (SCS)Ni cofactor in lactate racemase (LarA) is examined in this computational study. The Ni-dependent cofactor could increase dehydrogenation barriers and particularly destabilize the NADH-like pyruvate intermediates, due to the lower electrophilicity of the cofactor and the ring strain in the intermediates. This intermediate destabilization by a cofactor in LarA, which can promote racemization, is uncommon in enzymatic catalysis.
原文链接
http://onlinelibrary.wiley.com/doi/10.1002/chem.201605864/full