Anti-DIF3 antibodies enable researchers to detect and measure the DIF3 antigen in biological samples. This target is a reported synonym of the GGNBP2 gene, which encodes gametogenetin binding protein 2. This protein is known to function in cell differentiation and the regulation of cell proliferation, among other biological roles. The human version of DIF3 has a canonical amino acid length of 697 residues and a protein mass of 79.1 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cytoplasmic vesicles of cells and notably expressed in many tissues, such as the appendix, urinary bladder, and adrenal gland.