Probing the scope of the sulfoxidation activity of vanadium bromoperoxidase from Ascophyllum nodosum
作者:Hilda B ten Brink、Herbert L Holland、Hans E Schoemaker、Hester van Lingen、Ron Wever
DOI:10.1016/s0957-4166(99)00514-5
日期:1999.12
the corresponding sulfide in the presence of hydrogen peroxide. Investigation of the sulfoxidation activity of this enzyme shows that activating substituents at the para-position of the aromatic ring of methyl phenyl sulfide positively influence the selectivity of the reaction, whereas strongly electron-withdrawing groups cancel the catalyzed sulfoxidation reaction. The first evidence is presented that
先前已经表明,来自结壳菌的钒溴过氧化物酶介导在过氧化氢存在下由相应的硫化物产生具有91%对映体过量的(R)-甲基苯基亚砜。对这种酶的硫氧化活性的研究表明,在甲基苯基硫醚的芳环对位的活化取代基对反应的选择性产生积极影响,而强吸电子基团则取消了催化的硫氧化反应。提出的第一个证据是钒溴过氧化物酶以高动力学分辨率催化外消旋非芳族环状硫醚的硫氧化反应。