Polycomb group (PcG) proteins are a subset of epigenetic factors that are highly conserved throughout evolution. In mammals. PcG proteins can be classified into two muti-proteins complexes: Polycomb repressive complex 1 (PRC1) and PRC2. Increasing evidence has demonstrated that PcG complexes play critical roles in the regulation of gene expression. https://darthomes.shop/product-category/serving-trays/