An octamer of histones H3 and H4 forms a compact complex with DNA of nucleosome size.

An octamer of histones H3 and H4 forms a compact complex with DNA of nucleosome size.
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组蛋白 H3 和 H4 的八聚体与核小体大小的 DNA 形成紧密的复合物。

DOI:
10.1093/nar/5.12.4805
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发表时间:
1978
影响因子:
14.9
通讯作者:
G. Felsenfeld
G. Felsenfeld
中科院分区:
生物学2区
文献类型:
--
作者:
R. Simon;R. Camerini‐Otero;G. Felsenfeld

文献摘要

被引文献

相似文献

组蛋白H3和H4的等摩尔混合物已被重建到核小体核心大小的DNA上。两种不同的复合物形成的相对丰度取决于H3 + H4与DNA的起始比率。这些复合物中的一个包含每个DNA分子的两个H3-H4二聚体,并且具有7.5S的沉降系数。另一种复合物含有由四个H3-H4二聚体组成的八聚体,沉降系数为10.4S。在这些测量的基础上,我们得出结论,八聚体复合物(而不是四聚体复合物)是一个完全折叠的,紧凑的结构类似于核小体。
Equimolar mixtures of histones H3 and H4 have been reconstituted onto DNA of nucleosome core size. Two distinct complexes are formed in a relative abundance that depends on the starting ratio of H3 + H4 to DNA. One of these complexes contains two H3-H4 dimers for each DNA molecule, and has a sedimentation coefficient of 7.5S. The other complex contains an octamer consisting of four H3-H4 dimers, and has a sedimentation coefficient of 10.4S. On the basis of these measurements, we conclude that the octamer complex (but not the tetramer complex) is a fully folded, compact structure resembling the nucleosome.