Epigenetics enigma resolved

Scientists have obtained the first detailed molecular structure of a member of the Tet family of enzymes. The finding is important for the field of epigenetics because Tet enzymes chemically modify DNA, changing signposts that tell the cell’s machinery «this gene is shut off» into other signs that say «ready for a change.»

Fuente : http://www.eurekalert.org/pub_releases/2013-12/ehs…