作者:Florian Achrainer、Vladimir N. Emel’yanenko、Waled Tantawy、Sergey P. Verevkin、Hendrik Zipse
DOI:10.1021/jp507855k
日期:2014.9.4
the nucleotide bases uracil, thymine, cytosine, adenine, and guanine have been determined. The most easily hydrogenated base is uracil, followed by thymine and cytosine. Comparison of these hydrogenation enthalpies with those of ketones and aldehydes derived from sugar models indicates the possibility of near-thermoneutral hydrogen transfer between uracil and the sugar phosphate backbone in oligonucleotides
使用理论和实验相结合的策略,已确定了核苷酸碱基尿嘧啶,胸腺嘧啶,胞嘧啶,腺嘌呤和鸟嘌呤的氢化热。最容易氢化的碱基是尿嘧啶,其次是胸腺嘧啶和胞嘧啶。这些氢化焓与糖模型衍生的酮和醛的氢化焓的比较表明,寡核苷酸中尿嘧啶和糖磷酸主链之间存在近乎中性的氢转移。