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通过组蛋白侧链乙酰化激活染色质。

Activation of chromatin by acetylation of histone side chains.

作者信息

Marushige K

出版信息

Proc Natl Acad Sci U S A. 1976 Nov;73(11):3937-41. doi: 10.1073/pnas.73.11.3937.

Abstract

The ability of calf thymus chromatin to support DNA-dependent RNA synthesis is markedly increased by modification of the histones with acetic anhydride. The extent of chemical acetylation of histones H2a, H2b, H3, and H4 required for the increase of template activity of the chromatin is within that which can be achieved enzymatically in the cell. The evidence suggests that the acetylation of histone side chains stimulates the rate of chain elongation during transcription of chromatin.

摘要

用乙酸酐修饰组蛋白后,小牛胸腺染色质支持依赖DNA的RNA合成的能力显著增强。染色质模板活性增加所需的组蛋白H2a、H2b、H3和H4的化学乙酰化程度,在细胞中通过酶促反应所能达到的范围内。有证据表明,组蛋白侧链的乙酰化可刺激染色质转录过程中的链延伸速率。

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本文引用的文献

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Histone, a suppressor of chromosomal RNA synthesis.组蛋白,一种染色体RNA合成的抑制剂。
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Template properties of liver chromatin.肝脏染色质的模板特性
J Mol Biol. 1966 Jan;15(1):160-74. doi: 10.1016/s0022-2836(66)80218-8.
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Fractionation of liver chromatin.肝脏染色质的分级分离
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