Anti-ankyrin repeat and zinc finger peptidyl tRNA hydrolase 1 antibodies are used for the immunodetection of the protein encoded by the ANKZF1 gene. In humans, the canonical protein has a reported length of 726 amino acid residues and a mass of 80.9 kDa. Its subcellular localization is in the cytoplasm. A member of the ANKZF1/VMS1 protein family, it is reported to play a role in the cellular response to hydrogen peroxide and in the maintenance of mitochondrial integrity under conditions of cellular stress. Other names for this target antigen include ZNF744, ankyrin repeat and zinc finger domain-containing protein 1, ankyrin repeat and zinc finger domain containing 1, zinc finger protein 744, and Vms1. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.