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《中国化学会第十一届全国天然有机化学学术会议论文集(第一册)》2016年
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A thiamine-dependent enzyme uses a new catalytic strategy in menaquinone biosynthesis

Haigang Song  Chen Dong  Mingming Qin  Yaozong Chen  Yueru Sun  Jingjing Liu  Wan Chan  Zhihong Guo  
【摘要】:正Enamine is a well-known reactive intermediate mediating essential thiamine-dependent catalysis in central metabolic pathways.However,this intermediate is not found in the thiamine-dependent catalysis of the vitamin K biosynthetic enzyme Men D.Instead,an active tetrahedral post-decarboxylation intermediate is stably formed in the enzyme and structurally determined at 1.34?resolution in crystal.This intermediate takes a unique conformation that

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