Feigon J, Wang A H, van der Marel G A, van Boom J H, Rich A
Science. 1985 Oct 4;230(4721):82-4. doi: 10.1126/science.4035359.
Nuclear magnetic resonance spectra (proton and phosphorus-31) and ultraviolet absorption spectra of the DNA decamer d(br5CGbr5CGATbr5CGbr5CG), in which the central two adenine-thymine base pairs are out of order with the rest of the purine-pyrimidine alternation sequence, indicate that under appropriate solvent conditions (high salt and methanol) the molecule undergoes a structural transition from a right-handed B-DNA conformation to a left-handed Z-DNA conformation. Measurements of the two-dimensional nuclear Overhauser effect on the decamer indicate that all of the guanines as well as the two equivalent thymines adopt the syn conformation.
DNA十聚体d(br5CGbr5CGATbr5CGbr5CG)的核磁共振谱（质子和磷-31）以及紫外吸收光谱表明，在适当的溶剂条件下（高盐和甲醇），该分子会从右手B-DNA构象转变为左手Z-DNA构象，其中央的两个腺嘌呤-胸腺嘧啶碱基对与其余嘌呤-嘧啶交替序列的顺序不同。对该十聚体的二维核Overhauser效应测量表明，所有鸟嘌呤以及两个等效胸腺嘧啶均采用顺式构象。
