Dorman D E, Roberts J D
Proc Natl Acad Sci U S A. 1970 Jan;65(1):19-26. doi: 10.1073/pnas.65.1.19.
Natural-abundance (13)C nuclear magnetic resonance spectra of ten common nucleotides in neutral, aqueous solutions have been determined and interpreted. The spectra of two of these substances were also determined in acidic solutions, and several of the carbon chemical shifts were found to depend markedly on pH. Within the limited range of concentrations employed, there were observed no carbon chemical-shift changes which could be ascribed to base-stacking or base-pairing phenomena.
已测定并解释了中性水溶液中十种常见核苷酸的天然丰度(13)C核磁共振谱。还测定了其中两种物质在酸性溶液中的谱,发现几个碳化学位移明显依赖于pH值。在所采用的有限浓度范围内,未观察到可归因于碱基堆积或碱基配对现象的碳化学位移变化。