Design and Synthesis of a Photocleavable Fluorescent Nucleotide 3‘-<i>O</i>-Allyl-dGTP-PC-Bodipy-FL-510 as a Reversible Terminator for DNA Sequencing by Synthesis
作者:Qinglin Meng、Dae Hyun Kim、Xiaopeng Bai、Lanrong Bi、Nicholas J. Turro、Jingyue Ju
DOI:10.1021/jo060300k
日期:2006.4.1
DNA sequencing by synthesis (SBS) using reversible fluorescent nucleotide terminators is potentially an efficient approach to address the limitations of current DNA sequencing techniques. Here, we report the design and synthesis of a 3‘-O-allyl photocleavable fluorescent nucleotide analogue, 3‘-O-allyl-dGTP-PC-Bodipy-FL-510, as a reversible terminator for SBS. The nucleotide is efficiently incorporated
使用可逆的荧光核苷酸终止子通过合成(SBS)进行DNA测序可能是解决当前DNA测序技术局限性的有效方法。在这里,我们报告3'- O-烯丙基光可裂解的荧光核苷酸类似物3'- O的设计和合成-allyl-dGTP-PC-Bodipy-FL-510,作为SBS的可逆终止剂。DNA聚合酶可将核苷酸有效地掺入到正在生长的DNA链中,从而终止聚合酶反应。之后,通过在355nm处照射定量荧光团,并且通过在DNA相容性条件下使用Pd催化的反应来快速有效地除去烯丙基,以再生游离的3'-OH基团以重新开始聚合酶反应。已成功证明了两个步骤的此类步骤可对DNA模板的均聚物区域进行测序,从而有助于SBS的发展,使其成为高通量DNA测序的可行方法。