Dideoxy nucleoside triphosphate (ddNTP) analogues: Synthesis and polymerase substrate activities of pyrrolidinyl nucleoside triphosphates (prNTPs)
作者:Chandrasekhar Reddy Gade、Manjusha Dixit、Nagendra K. Sharma
DOI:10.1016/j.bmc.2016.06.043
日期:2016.9
single labeled ddNTP incorporation into DNA under PCR conditions. This report describes the syntheses of rationally designed novel amino-functionalized ddNTP analogue such as Pyrrolidine nucleoside triphosphates (prNTPs), and their polymerase activities with DNA polymerase by LC-MS and Gel-electrophoretic techniques. The Mass and PAGE analyses strongly support the incorporation of prNTPs into DNA oligonucleotide
双脱氧核苷三磷酸(ddNTPs)终止了DNA的生物聚合,并成为DNA测序技术的重要化学成分,而DNA测序技术现已成为分子生物学研究的基本工具。在这种方法中,通过在PCR条件下将单个标记的ddNTP掺入DNA后,通过检测终止的DNA片段,将放射性标记或荧光染料标记的ddNTP类似物用于DNA测序。该报告描述了通过LC-MS和凝胶电泳技术合理设计的新型氨基官能化ddNTP类似物(如吡咯烷核苷三磷酸(prNTPs))的合成,以及它们与DNA聚合酶的聚合酶活性。质量和PAGE分析强烈支持使用Therminator DNA聚合酶将prNTPs掺入DNA寡核苷酸中,就像控制底物ddNTP一样。结果,通过与聚合酶结合的prNTP将DNA寡核苷酸官能化为胺基。因此,prNTPs提供了在不修饰核碱基结构的情况下与其他生物分子/染料/荧光分子制备所需的共轭DNA的机会。