A gene known to prevent cancer also acts as a master regulator of the suntan response, researchers report in the March 9, 2007 issue of Cell, published by Cell Press. The team discovered in studies of mice and human skin that p53, a gene best known for keeping tumors at bay, is ultimately responsible for activating the tanning machinery that darkens the skin of so many sun-seeking beachgoers, thereby protecting them from sunburns.>>> Discuss This Story
