Anti-IL-16 antibodies are protein reagents that detect specific antigens. The IL-16 antigen is another term for the human protein interleukin 16, encoded by the IL16 gene. The protein is known to function in cytokine-mediated signaling pathways and immune response pathways, among other biological roles. Canonically, it has an amino acid length of 1332 residues and a mass of 141.8 kilodaltons. Its subcellular localization is in the nucleus, cytoplasm, and is secreted. It is expressed in the rectum, lymph node, colon, bone marrow, and appendix. Other alias names for IL-16 include LCF, NIL16, and PRIL16. A number of IL-16 antibodies have been mentioned in research publications and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.