This silencing is why the DNA for, say, insulin is turned off in brain cells but active in pancreas cells.
这种抑制作用就是为什么胰岛素基因在胰岛腺中试开启的而在大脑中是关闭的。
2
DNA methylation catalyzed by DNA methyltransferases interacts with histone modification to inhibit gene transcription, induce gene silencing at the participation of many regulators.