該基因編碼一個多囊組（pcg）家族成員。pcg家族成員形成多聚蛋白復合物，參與維持基因在連續細胞世代中的轉錄抑制狀態。該蛋白與zeste 2的增強子、整合素beta7的細胞質尾、免疫缺陷病毒1型（hiv-1）ma蛋白和組蛋白脫乙酰酶蛋白相互作用。該蛋白通過組蛋白去乙酰化介導基因活性的抑制，并可能作為整合素功能的特異性調節因子。已經鑒定出兩個編碼不同亞型的轉錄變體。[由RefSeq提供，2008年7月]
This gene encodes a member of the Polycomb-group (PcG) family. PcG family members form multimeric protein complexes, which are involved in maintaining the transcriptional repressive state of genes over successive cell generations. This protein interacts with enhancer of zeste 2, the cytoplasmic tail of integrin beta7, immunodeficiency virus type 1 (HIV-1) MA protein, and histone deacetylase proteins. This protein mediates repression of gene activity through histone deacetylation, and may act as a specific regulator of integrin function. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]