The contribution of adenines in the catalytic core of 10-23 DNAzyme improved by the 6-amino group modifications
作者:Junfei Zhu、Zhiwen Li、Qi Wang、Yang Liu、Junlin He
DOI:10.1016/j.bmcl.2016.07.076
日期:2016.9
In the catalytic core of 10-23 DNAzyme, its five adenine residues are moderate conservative, but with highly conserved functional groups like 6-amino group and 7-nitrogen atom. It is this critical conservation that these two groups could be modified for better contribution. With 2'-deoxyadenosine analogues, several functional groups were introduced at the 6-amino group of the five adenine residues
在10-23 DNAzyme的催化核心中,它的5个腺嘌呤残基是中等保守的,但具有高度保守的官能团(如6-氨基和7-氮原子)。正是这种至关重要的保护措施,可以对这两个小组进行修改,以取得更好的贡献。使用2'-脱氧腺苷类似物,在五个腺嘌呤残基的6-氨基处引入了几个官能团。A15的6-氨基上的3-Aminopropyl取代导致kobs增加了5倍。通过对A15的6个氨基的连接键和外部功能基团的精心设计,可以期待更有效的DNA酶。通过这种修饰方法,可以针对10-23 DNAzyme优化其他功能基团或残基。