Anti-ZZZ4 antibodies enable researchers to detect and measure the ZZZ4 antigen in biological samples. This target is a reported synonym of the ZZEF1 gene, which encodes zinc finger ZZ-type and EF-hand domain containing 1. The human version of ZZZ4 has a canonical amino acid length of 2961 residues and a protein mass of 331.1 kilodaltons, although 3 isoforms have been identified.