Synthesis and Some Biochemical Properties of a Novel 5,6,7,8-Tetrahydropyrimido[4,5-c]pyridazine Nucleoside
作者:David Loakes、Daniel M. Brown、Stephen A. Salisbury、Mark G. McDougall、Constantin Neagu、Satyam Nampalli、Shiv Kumar
DOI:10.1002/hlca.200390103
日期:2003.4
A novel nucleoside analogue is described based on the pyridazine ring system. The nucleoside was successfully incorporated into DNA via both its phosphoramidite and 5′-triphosphate derivatives. Enzymatically, the analogue behaves essentially as thymidine: it is a good substrate for the DNA polymerases Taq and exonuclease-free Klenow fragment, leading to full-length products when present in either the
基于哒嗪环系统描述了一种新颖的核苷类似物。核苷通过其亚磷酰胺和5'-三磷酸酯衍生物成功地掺入了DNA 。在酶学上,类似物的行为基本上与胸腺嘧啶类似:它是DNA聚合酶Taq和无核酸外切酶的Klenow片段的良好底物,当存在于引物或模板链中时,可形成全长产物。在杂交研究中,核苷显示出模棱两可的碱基配对特性,包括通用碱基特性。