CDKN2C

CDKN2C（cyclin dependent kinase inhibitor 2C）は、ヒトではCDKN2C遺伝子によってコードされるタンパク質である。p18INK4cの名称でも知られる。 CDKN2C遺伝子にコードされるタンパク質は、サイクリン依存性キナーゼ阻害因子のINK4ファミリーのメンバーである。このタンパク質はCDK4またはCDK6と相互作用してCDKの活性化を妨げることで、細胞周期のG1期の進行を制御する細胞成長調節因子として機能する。この遺伝子の異所性発現（英語版）は、野生型のRB1の機能の存在と相関するような形で、ヒト細胞の成長を抑制することが示されている。ノックアウトマウスを用いた研究からは、この遺伝子は精子形成を調節する役割とともに、腫瘍形成を抑制する役割が示唆されている。この遺伝子には選択的スプライシングによる2種類の転写産物が存在するが、同一のタンパク質をコードしている。 CDKN2CはCDK4、CDK6と相互作用することが示されている。 ^ a b c GRCh38: Ensembl release 89: ENSG00000123080 - Ensembl, May 2017 ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000028551 - Ensembl, May 2017 ^ Human PubMed Reference: ^ Mouse PubMed Reference: ^ a b c “Growth suppression by p18, a p16INK4/MTS1- and p14INK4B/MTS2-related CDK6 inhibitor, correlates with wild-type pRb function”. Genes Dev. 8 (24): 2939–52. (January 1995). doi:10.1101/gad.8.24.2939. PMID 8001816.  ^ “Structure of the gene encoding the human cyclin-dependent kinase inhibitor p18 and mutational analysis in breast cancer”. Biochem. 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