The histones are kind of like the spool

组蛋白就像是线轴

The histones are kind of like the spool.

该组蛋白是一种类似线轴。

The histones are kind of like the spool,

组蛋白就像是线轴，

Histones are proteins involved in regulating genes being turned on and off.

组蛋白是涉及到调控基因的蛋白质。

Histones , as basic components of nucleosome, are essential to chromatin structure and function.

组蛋白作为核小体的基本组分，是染色质的结构和功能必需的。

Chromatin contains half as much DNA as it does protein, most of which is in the form of histones.

染色质当中DNA与蛋白质的数量约各占一半，后者大多以组织蛋白的形式存在。

Chromatin contains half as much DNA as it does protein, most of which is in the form of histones .

染色质当中DNA与蛋白质的数量约各占一半，后者大多以组织蛋白的形式存在。

Histones, as the basic components of nucleosome, are essential to chromatin structure and function.

组蛋白作为核小体的基本组分, 是染色质的结构和功能必需的.

Histones are characterized by numerous posttranslational modifications that influence gene transcription.

组蛋白的特点是大量的翻译后修饰,这些修饰可以影响基因转录.

This modification is either the addition of methyl groups to the DNA or of acetyl groups to the histones.

这种改性或者是甲基增至DNA中，或者是乙酰基增加到组蛋白中。