Anti-MBLR antibodies enable researchers to detect and measure the MBLR antigen in biological samples. This target is a reported synonym of the PCGF6 gene, which encodes polycomb group ring finger 6. This protein is known to function in chromatin remodeling and the regulation of transcription, among other biological roles. The human version of MBLR has a canonical amino acid length of 350 residues and a protein mass of 39 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells.