The number human protein coding genes, which account for less than 2 % of the human genome, have recently been found to number over 20,000. (sciencedaily.com)
The main molecular alterations are represented by variations in gene expression, usually mild and with consequences for a vast number of target protein coding genes. (mdanderson.org)
«Now we know that they are off - switches for protein coding genes.» (sciencedaily.com)