PCR incorporation of dUMPs modified with aromatic hydrocarbon substituents of different hydrophilicities: Synthesis of C5-modified dUTPs and PCR studies using Taq, Tth, Vent (exo-) and Deep Vent (exo-) polymerases
作者:Olga A. Zasedateleva、Sergey A. Surzhikov、Valeriy E. Shershov、Rinat A. Miftakhov、Dmitry A. Yurasov、Viktoriya E. Kuznetsova、Alexander V. Chudinov
DOI:10.1016/j.bioorg.2020.103829
日期:2020.6
been synthesized. The aromatic hydrocarbon substituents were attached to dUTPs via a CHCHCH2NHCOCH2 linker. The efficiency of the PCR incorporation of modified dUMPs using Taq, Tth, Vent (exo-) and Deep Vent (exo-) polymerases and a model DNA template containing one, two and three adjacent adenine nucleotides at three different sites within the sequence was investigated. For all the polymerases used
已经合成了在嘧啶环的C5位被具有不同亲水性的各种芳烃取代基修饰的脱氧尿苷三磷酸衍生物(dUTP)。芳族烃取代基通过CHCHCH2NHCOCH2连接基连接到dUTP。研究了使用Taq,Tth,Vent(exo-)和Deep Vent(exo-)聚合酶以及在该序列中三个不同位点包含一个,两个和三个相邻腺嘌呤核苷酸的模型DNA模板进行PCR掺入修饰的dUMP的效率。对于所有使用的聚合酶,修饰的PCR产物的产率随着芳烃取代基亲水性的增加而显着提高。特别是对于上述聚合酶,被研究的亲水性最强的芳烃取代基(4-羟基苯基残基)改性的dUMP的掺入效率为dTMP掺入效率的60-85%。同时,被2-,4-甲氧基苯基,苯基和4-硝基苯基取代基修饰的dUMP的掺入相对效率为20%至50%,对于1-萘和4-联苯基为2-18% ,是所研究的芳烃取代基中疏水性最高的。