PRC1 and carcinoma: The BMI1 gene (the protein product of which is a part of the PRC1 complex) was also hypomethylated in many regions not only in hgOvCa (exons, 3′UTR and distal promoter) but in both carcinoma groups (proximal promoter and the first exon), which implies its high expression in OvCa (GR file).