Influence of substituent groups in regioselective acylation of nucleosides by Novozym 435 lipase
作者:Zhao-Yu Wang、Yan-Hong Bi、Xiang-Qian Li、Min-Hua Zong
DOI:10.1016/j.procbio.2013.06.022
日期:2013.8
comparative study on the substrate recognition was conducted successfully in Novozym 435-mediated acylation of various 2′- or 5-substituted nucleosides with acyl donors carrying different aliphatic chain lengths (C6, C10, and C14). The unexpected results revealed that the physicochemical property of the substituents (such as the size, hydrophobicity, and substitutional position) in nucleosides profoundly influenced
在 Novozym 435 介导的各种 2' 或 5 取代核苷与携带不同脂肪链长度(C6、C10 和 C14)的酰基供体的酰化中,成功地进行了底物识别的比较研究。出乎意料的结果表明,核苷中取代基的物理化学性质(如大小、疏水性和取代位置)对酶的行为产生了深远的影响。源自核苷 2'-或 5-位取代基的不同底物结合模式可以解释这一点。此外,除了脂肪酶活性位点的几何构型之外,控制区域选择性的另一个可能因素可能归因于取代基和酰基供体之间的相互作用。