Oligonucleotides containing 7- or 8-methyl-7-deazaguanine: steric requirements of major groove substituents on the DNA structure
作者:Frank Seela、Yaoming Chen
DOI:10.1039/cc9960002263
日期:——
Methyl groups in alternating octanucleotides containing 7-methyl-7-deazaguanine and cytosine have steric freedom and maintain the B-DNA structure, whereas the isomeric-8-methyl-7-deazaguanine causes a B–Z transition.
含有 7-甲基-7-脱氮鸟嘌呤和胞嘧啶的交替八核苷酸中的甲基具有立体自由度,可保持 B-DNA 结构,而异构体-8-甲基-7-脱氮鸟嘌呤则会导致 B-Z 转换。