Anti-HIT-40 antibodies enable researchers to detect and measure the HIT-40 antigen in biological samples. This target is a reported synonym of the ZNF799 gene, which encodes zinc finger protein 799. This protein is known to function in the regulation of transcription, among other biological roles. The human version of HIT-40 has a canonical amino acid length of 643 residues and a protein mass of 74.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types. HIT-40 is a member of the Krueppel C2H2-type zinc-finger protein family.