Anti-KR19 antibodies enable researchers to detect and measure the KR19 antigen in biological samples. This target is a reported synonym of the ZNF479 gene, which encodes zinc finger protein 479. This protein is known to function in the regulation of transcription, among other biological roles. The human version of KR19 has a canonical amino acid length of 524 residues and a protein mass of 60.6 kilodaltons. It is reported to be localized in the nucleus of cells. KR19 is a member of the Krueppel C2H2-type zinc-finger protein family.