Next , histones can be modified in several ways to increase or decrease gene expression .
DNA methylation is carried out by DNA methyltransferases ( DNMTs ) which are recruited to CpG sites by methyl - DNA binding proteins , such as MeCP2 .
Histones can be modified in several ways to increase or decrease gene expression .
DNA methylation is carried out by DNA methyltransferases ( DNMTs ) which are recruited to CpG sites by methyl - DNA binding proteins , such as MeCP2 .