CDKN2A and melanoma: To assess the mechanism underlying ATF2's contribution to melanoma development, we conducted gene profiling array analysis of primary melanocytes prepared from Tyr::Cre+::Atf2+/+::NrasQ61K::Ink4a−/− and Tyr::Cre+::Atf2md::NrasQ61K::Ink4a−/− mice.