Anti-IL-31 antibodies enable researchers to detect and measure the IL-31 antigen in biological samples. This target is a reported synonym of the IL31 gene, which encodes interleukin 31. The human version of IL-31 has a canonical amino acid length of 164 residues and a protein mass of 18.2 kilodaltons. It is reported to be a secreted protein. A number of IL-31 antibodies have been mentioned in research publications and have associated citations. ELISA is a widely used application for these antibodies. Western Blot and Immunohistochemistry are also common applications.