化学
活动站点
基质(水族馆)
5-羟甲基糠醛
催化作用
生物催化
羟甲基糠醛
动力学分辨率
黄素组
酶催化
酶
组合化学
有机化学
乙酰丙酸
对映选择合成
糠醛
反应机理
生物
生态学
作者
Willem P. Dijkman,Claudia Binda,Marco W. Fraaije,Andrea Mattevi
标识
DOI:10.1021/acscatal.5b00031
摘要
5-Hydroxymethylfurfural oxidase (HMFO) is a flavin-dependent enzyme that catalyzes the oxidation of many aldehydes, primary alcohols, and thiols. The three-step conversion of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid is relevant for the industrial production of biobased polymers. The remarkable wide substrate scope of HMFO contrasts with the enzyme’s precision in positioning the substrate to perform catalysis. We have solved the crystal structure of HMFO at 1.6 Å resolution, which guided mutagenesis experiments to probe the role of the active-site residues in catalysis. Mutations targeting two active-site residues generated engineered forms of HMFO with promising catalytic features, namely enantioselective activities on secondary alcohols and improved 2,5-furandicarboxylic acid yields.
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