Synthesis of Site-Specific Damaged DNA Strands by 8-(Acetylarylamino)-2′-deoxyguanosine Adducts and Effects on Various DNA Polymerases
作者:Sarah Krüger、Chris Meier
DOI:10.1002/ejoc.201200984
日期:2013.2
predominately found 8-(arylamino)-2′-dG, 8-(acetylarylamino) damages within DNA-strands may also play an important role in the induction of chemical carcinogenesis. A synthesis pathway leading to these 8-(acetylarylamino)-dG adducts using different aromatic amines has been optimized. The 8-modified dGs were converted into the corresponding phosphoramidites and site-specifically incorporated into different
除了主要发现的 8-(芳基氨基)-2'-dG 外,DNA 链中的 8-(乙酰基芳基氨基)损伤也可能在化学致癌作用的诱导中起重要作用。使用不同芳香胺生成这些 8-(乙酰芳基氨基)-dG 加合物的合成途径已得到优化。8 种修饰的 dG 被转化为相应的亚磷酰胺,并在位点特异性地整合到不同的寡核苷酸中,从而形成 DNA 链。这些受损 DNA 链与互补寡核苷酸的带有损伤的杂交体被用来研究它们的熔解特性和它们的圆二色光谱。结果表明,切割位点内的损伤没有发生 EcoRI 限制。最后,三种不同的 DNA 聚合酶用于引物延伸研究。