A number of ELISA Kits are available that target P16INK4, an alias of the protein, cyclin dependent kinase inhibitor 2A. The human protein, encoded by the gene CDKN2A, is a member of the CDKN2 cyclin-dependent kinase inhibitor family. The protein's cellular localization is indicated to be cytoplasmic and nuclear. Additional synonyms or past names for this protein may include: ARF, CDK4I, CDKN2, CMM2, INK4, INK4A, MLM, MTS-1, MTS1, P14, P14ARF, P16, P16-INK4A, P16INK4, P16INK4A, P19, P19ARF, TP16. Homology is conserved in other species, such as Mouse.