Enzymatic asymmetric hydroxylation of unnatural substrates with soybean lipoxygenase
作者:J.S. Yadav、S. Nanda、A.Bhaskar Rao
DOI:10.1016/s0957-4166(01)00381-0
日期:2001.8
terminus undergo asymmetric hydroxylation with soybean lipoxygenase. The prosthetic modifier supplies the missing structural features needed for enzymatic recognition and controls the regiochemical outcome of the reaction by its high hydrophobic content. The effect of pH on the regiochemistry clearly shows that all the substrates can arrange themselves at the active site of soybean lipoxygenase in only one
模仿带有非离子羟基末端带有间隔修复基团的天然底物(亚油酸)的替代底物,用大豆脂氧合酶进行不对称羟基化。假体修饰剂提供了酶促识别所需的缺失结构特征,并通过其高疏水含量控制了反应的区域化学结果。pH对区域化学的影响清楚地表明,所有底物都只能以一种方向将其自身定位在大豆脂氧合酶的活性位点上,从而导致通过在ω-6碳上的氧化作用而形成氢过氧化物。