Anti-HPF34 antibodies enable researchers to detect and measure the HPF34 antigen in biological samples. This target is a reported synonym of the ZNF93 gene, which encodes zinc finger protein 93. This protein is reported to be a transcription factor specifically required to repress long interspersed nuclear element 1 (L1) retrotransposons: recognizes and binds L1 sequences and repress their expression by recruiting a repressive complex containing TRIM28/KAP1. The human version of HPF34 has a canonical amino acid length of 620 residues and a protein mass of 71 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the nucleus of cells. HPF34 is a member of the Krueppel C2H2-type zinc-finger protein family.