Stereochemical Analysis of Isopentenyl Diphosphate Isomerase Type II from <i>Staphylococcus </i><i>a</i><i>ureus</i> Using Chemically Synthesized (<i>S</i>)- and (<i>R</i>)-[2-<sup>2</sup>H]Isopentenyl Diphosphates
作者:Chai-lin Kao、William Kittleman、Hua Zhang、Haruo Seto、Hung-wen Liu
DOI:10.1021/ol0524050
日期:2005.12.1
the catalysis of isopentenyl diphosphate (IPP) isomerase type II from Staphylococcus aureus, which is a flavoprotein catalyzing the interconversion of IPP and dimethylallyl diphosphate, we have chemically synthesized (S)- and (R)-[2-2H]IPP and carried out stereochemical analysis of the reaction. Our results show that the C-2 deprotonation of IPP by this enzyme is pro-R stereospecific, suggesting a similar
[化学反应:见正文]。为了研究来自金黄色葡萄球菌的II型异戊烯二磷酸(IPP)异构酶的催化作用,它是一种黄酮蛋白,可催化IPP与二磷酸二甲基烯丙基烯丙酯的相互转化,我们已经化学合成了(S)-和(R)-[2-2H] IPP对反应进行了立体化学分析。我们的结果表明,该酶的IPP的C-2去质子化是pro-R立体定向的,表明与I型酶相似的立体化学过程。