Exercise Changes Gene Activity
Wednesday, March 7, 2012 - 09:40
in Biology & Nature
The DNA in each cell of your body is unique (barring mutations). And yet, the genes that are actually expressed differ widely. This is achieved by, among other mechanisms, epigenetic signatures. One important epigenetic signature is DNA methylation, or the adding of a methyl group (-CH3) to the DNA. This can suppress the expression of a gene by limiting the access of the transcription machinery (the stuff that turns DNA into mRNA, which, through translation, is turned into a protein). read more