NCIt definition : Cyclin-dependent kinase inhibitor 2A (156 aa, 17 kDa) is encoded by the human CDKN2A
gene. This protein is involved in the inhibition of both cell proliferation and cell
cycle progression.;
NCIt note : Cyclin-dependent kinase inhibitor 2A acts as a tumor suppressor and a negative regulator
of progression through G1. It interacts with CDK4/CDK6, inhibiting both their interaction
with cyclin D and the phosphorylation of RB.;