作者:Masayuki Tera、Nathan W. Luedtke
DOI:10.1016/bs.mie.2020.04.048
日期:——
Bioorthogonal ligation reactions are powerful tools for characterizing DNA metabolism, DNA-protein binding interactions, and they even provide new leads for therapeutic strategies. Nucleoside analogs can deliver bioorthogonal functional groups into chromatin via cellular metabolic pathways, however, insufficient phosphorylation by endogenous kinases often limits the efficiency of their incorporation
生物正交连接反应是表征 DNA 代谢、DNA-蛋白质结合相互作用的有力工具,它们甚至为治疗策略提供了新的线索。核苷类似物可以通过细胞代谢途径将生物正交官能团传递到染色质中,但是,内源性激酶磷酸化不足通常会限制其掺入效率。即使成功代谢为生物聚合物,染色质对修饰核苷酸的空间位阻也会抑制随后的点击反应。在本章中,我们将描述克服这些限制的方法。核苷酸单磷酸三酯可以绕过对细胞核苷激酶活性的需要,从而能够将叠氮基团有效地整合到细胞 DNA 中。