第1个回答 2008-08-21
简单的来说这个问题属于表观遗传学
组蛋白的修饰主要有甲基化和乙酰化
组蛋白被修饰后会影响染色体的结构及一些DNA序列是否被暴露,从而影响基因的表达
Histone acetylation is dynamically regulated by HATs( histone acetyltransferase) and HDACs (histone deacetylases). Histone acetyation is generally correlated with active transcription.
Histone methylation is linked to both transcriptional activation and repression.本回答被网友采纳