CDKN2D
“Novel INK4 proteins, p19 and p18, are specific inhibitors of the cyclin D-dependent kinases CDK4 and CDK6.”. Mol. Cell. Biol. 15 (5): 2672–81. (1995). doi:10.1128/MCB.15.5.2672. PMC 230497. PMID 7739547. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC230497/.
“Identification of human and mouse p19, a novel CDK4 and CDK6 inhibitor with homology to p16ink4.”. Mol. Cell. Biol. 15 (5): 2682–8. (1995). doi:10.1128/MCB.15.5.2682. PMC 230498. PMID 7739548. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC230498/.
“Isolation and characterization of p19INK4d, a p16-related inhibitor specific to CDK6 and CDK4.”. Mol. Biol. Cell 7 (1): 57–70. (1996). doi:10.1091/mbc.7.1.57. PMC 278612. PMID 8741839. https://www.ncbi.