Anti-PUR-BETA antibodies enable researchers to detect and measure the PUR-BETA antigen in biological samples. This target is a reported synonym of the PURB gene, which encodes purine rich element binding protein B. This protein is known to function in the regulation of transcription, among other biological roles. The human version of PUR-BETA has a canonical amino acid length of 312 residues and a protein mass of 33.2 kilodaltons. It is reported to be localized in the nucleus of cells. PUR-BETA is a member of the PUR DNA-binding protein family.