Engineered P450pyr monooxygenase for asymmetric epoxidation of alkenes with unique and high enantioselectivity
作者:Aitao Li、Ji Liu、Son Q. Pham、Zhi Li
DOI:10.1039/c3cc46675b
日期:——
A triple mutant of P450pyr monooxygenase (P450pyrTM) catalysed the epoxidation of several para-substituted styrenes as the first enzyme showing high (R)-enantioselectivity and high conversion, demonstrated a broad substrate range, and showed high enantioselectivity for the epoxidation of an unconjugated 1,1-disubstituted alkene, 2-methyl-3-phenyl-1-propene, and a cyclic alkene, N-phenoxycarbonyl-1,2,5,6-tetrahydropyridine, respectively.
P450pyr单加氧酶的三重突变体(P450pyrTM)作为首个展现出高(R)对映选择性和高转化率的酶,催化了几种对位取代苯乙烯的环氧化反应,其底物范围广泛,并对非共轭的1,1-二取代烯烃——2-甲基-3-苯基-1-丙烯,以及环烯烃——N-苯氧羰基-1,2,5,6-四氢吡啶的环氧化反应表现出高对映选择性。