Kallenbach N R, Appleby D W, Bradley C H
Nature. 1978 Mar 9;272(5649):134-8. doi: 10.1038/272134a0.
The 31P magnetic resonance spectrum of nucleosome cores from calf thymus nuclei has been measured. The spectrum consists of a single symmetric line, with a maximum second component of 5%. It is argued that this reflects a single average state of the DNA backbone, and does not support models that invoke backbone kinking at a frequency of 1 in 10 base pairs.
已测量了来自小牛胸腺细胞核的核小体核心的31P磁共振谱。该谱由一条单一的对称线组成，最大的第二成分占5%。有人认为，这反映了DNA主链的单一平均状态，并不支持那些以每10个碱基对中出现1次的频率调用主链扭结的模型。
