====== CDKN2A ====== [[p16]] (also known as p16INK4a, cyclin-dependent kinase inhibitor 2A, [[CDKN2A]], multiple tumor suppressor 1 and numerous other synonyms), is a protein that slows [[cell division]] by slowing the progression of the [[cell cycle]] from the [[G1 phase]] to the [[S phase]], thereby acting as a [[tumor suppressor]]. see [[CDKN2A homozygous deletion]]. ----