CDKN2B

cyclin dependent kinase inhibitor 2B

Summary

This gene lies adjacent to the tumor suppressor gene CDKN2A in a region that is frequently mutated and deleted in a wide variety of tumors. This gene encodes a cyclin-dependent kinase inhibitor, which forms a complex with CDK4 or CDK6, and prevents the activation of the CDK kinases, thus the encoded protein functions as a cell growth regulator that controls cell cycle G1 progression. The expression of this gene was found to be dramatically induced by TGF beta, which suggested its role in the TGF beta induced growth inhibition. Two alternatively spliced transcript variants of this gene, which encode distinct proteins, have been reported. [provided by RefSeq, Jul 2008]

Known Variants33 total

rsidPosition (GRCh37)AllelesClassClinVar
rs32179929:22,003,223C/T3 prime UTR variantbenign
rs10631929:22,003,367G/A3 prime UTR variantpathogenic
rs32179899:22,003,790T/C3 prime UTR variant—
rs32179869:22,005,330T/Gregulatory region variantuncertain significance
rs18211516099:22,005,943G/C—likely benign
rs7505287829:22,005,995C/G—likely benign
rs7799344229:22,006,002G/C—uncertain significance
rs12532200319:22,006,017G/C—uncertain significance
rs11678934589:22,006,036G/A—uncertain significance
rs626376229:22,006,043G/A—benign
rs18211635559:22,006,050T/G—uncertain significance
rs3722847659:22,006,060G/A—likely benign
rs1484211709:22,006,147C/T—conflicting classifications of pathogenicity
rs14225756129:22,006,151C/G—likely benign
rs20694269:22,006,273G/T—benign
rs9743369:22,006,348C/Tregulatory region variantbenign
rs20694209:22,008,504A/T—benign
rs2021614369:22,008,775G/A—likely benign
rs3723405579:22,008,779C/A—likely benign
rs15873878209:22,008,787C/T—likely benign
rs7691680169:22,008,798T/C—uncertain significance
rs14237904819:22,008,804G/A—uncertain significance
rs7764440229:22,008,822T/C—uncertain significance
rs3754431569:22,008,831T/C—uncertain significance
rs3699838759:22,008,832T/C—uncertain significance
rs24894841639:22,008,882C/T—uncertain significance
rs7483086799:22,008,905C/G—uncertain significance
rs7711515769:22,008,919C/T—uncertain significance
rs18213434049:22,008,924C/A—uncertain significance
rs7614148729:22,008,956G/A—likely benign
rs20694199:22,009,337G/T—benign
rs20694169:22,010,004T/G——
rs4954909:22,010,412A/Gupstream gene variant—

Gene information from NCBI Gene. Variant classifications from ClinVar.