该基因编码一个多囊组（pcg）家族成员。pcg家族成员形成多聚蛋白复合物，参与维持基因在连续细胞世代中的转录抑制状态。该蛋白与zeste 2的增强子、整合素beta7的细胞质尾、免疫缺陷病毒1型（hiv-1）ma蛋白和组蛋白脱乙酰酶蛋白相互作用。该蛋白通过组蛋白去乙酰化介导基因活性的抑制，并可能作为整合素功能的特异性调节因子。已经鉴定出两个编码不同亚型的转录变体。[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]