Anti-IL16 antibodies are used in the immunodetection of the protein interleukin 16. In humans, the canonical protein has a reported length of 1332 amino acid residues and a mass of 141.8 kDa. Its subcellular localization is in the nucleus, cytoplasm, and is secreted. Up to 4 different isoforms have been reported for this protein. It is notably expressed in the rectum, lymph node, colon, bone marrow, and appendix. IL16 is known to be involved with cytokine-mediated signaling pathways and immune response pathways. Post-translational modifications have been described, including protein cleavage. Synonyms for this target antigen include NIL16, PRIL16, prIL-16, pro-interleukin-16, lymphocyte chemoattractant factor, and LCF. IL16 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of IL16 antibodies have been mentioned in research publications and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.