Provided below are ELISA kits targeting chitinase 3 like 2, a human protein encoded by CHI3L2. This protein is 390 amino acids long, with a mass of 43.5 kDa, and is a member of the Glycosyl hydrolase 18 family. 3 isoforms have been identified. This is reported to be a secreted protein. Glycosylation sites have been reported. Other alias names for this protein include: chitinase-3-like protein 2, chondrocyte protein 39, CHIL2, and YKL-39.