Anti-niban apoptosis regulator 2 antibodies are used for the immunodetection of the protein encoded by the NIBAN2 gene. In humans, the canonical protein has a reported length of 746 amino acid residues and a mass of 84.1 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the Niban protein family, it is believed to play a role in apoptosis suppression. Post-translational modifications have been described, including phosphorylation. Other names for this target antigen include family with sequence similarity 129 member B, melanoma invasion by ERK, niban-like protein 1, and protein Niban 2. Gene orthologs have been identified in the mouse, rat, bovine and chimpanzee species.