Deoxynucleoside triphosphates bearing histamine, carboxylic acid, and hydroxyl residues – synthesis and biochemical characterization
作者:Marcel Hollenstein
DOI:10.1039/c3ob40842f
日期:——
Modified nucleoside triphosphates (dAHsTP, dUPOHTP, and dCValTP) bearing imidazole, hydroxyl, and carboxylic acid residues connected to the purine and pyrimidine bases through alkyne linkers were prepared. These modified dN*TPs were excellent substrates for various DNA polymerases in primer extension reactions. Moreover, the combined use of terminal deoxynucleotidyl transferase (TdT) and the modified
制备了修饰的核苷三磷酸酯(dA Hs TP,dU POH TP和dC Val TP),其带有通过炔烃连接基与嘌呤和嘧啶碱基连接的咪唑,羟基和羧酸残基。这些修饰的dN * TPs是引物延伸反应中各种DNA聚合酶的优良底物。此外,末端脱氧核苷酸转移酶(TdT)和修饰的dNTPs的组合使用导致了有效的拖尾反应,可与天然对应物媲美。最后,在聚合酶链反应条件下,三磷酸被聚合酶所耐受,随后的修饰寡核苷酸用作未修饰DNA再生的模板。因此,这些修饰的dN * TPs与体外完全相容 选择方法,可用于开发基于DNA的人工肽酶。