Anti-CCP ELISA kits are assays designed to detect the autoantibodies for cyclic citrullinated peptides (CCP). These antibodies target proteins or peptides that are citrullinated. Citrullination converts the amino acid arginine to citrulline, which can alter the structure of a protein and elicit an immune response. Anti-CCP antibodies are found in patients with rheumatoid arthritis. Visit the supplier page for more information about detection range and reactivity.