2‘,3‘-Dideoxy-3‘-thionucleoside Triphosphates: Syntheses and Polymerase Substrate Activities
作者:Meena、Mui Sam、Kathryn Pierce、Jack W. Szostak、Larry W. McLaughlin
DOI:10.1021/ol070147w
日期:2007.3.1
All four 2',3'-dideoxy-3'-thio-nucleosides (ddtNTPs) function as substrates for the Y410F mutant of Deep Vent (exo-) DNA polymerase. Not only are the ddtNTPs incorporated to form the N + 1 product, but further elongations are observed in which the key step is attack of the 3'-thiol on the 5'-triphosphate. Although other polymerases are likely to differ in their use of the ddtNTPs, there does not appear
所有四个2',3'-dideoxy-3'-thio-nucleosides(ddtNTPs)充当Deep Vent(exo-)DNA聚合酶Y410F突变体的底物。不仅掺入了ddtNTP以形成N + 1产物,而且还观察到了进一步的延伸,其中的关键步骤是3'-硫醇对5'-三磷酸的侵蚀。尽管其他聚合酶在ddtNTPs的使用上可能会有所不同,但似乎没有根本禁止在磷酸酐亲电试剂上使用硫醇亲核试剂的方法。描述了四个ddtNTP(C,T,A,G)的合成。[结构:见文字]