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