Provided below are ELISA kits targeting chitinase acidic, a human protein encoded by CHIA. This protein is 476 amino acids long, with a mass of 52.3 kDa, and is a member of the Glycosyl hydrolase 18 family, Chitinase class II subfamily. 3 isoforms have been identified. This is reported to be a cytoplasmic and secreted protein. It is also an enzyme classified as a(n) chitinase. Other alias names for this protein include: acidic mammalian chitinase, lung-specific protein TSA1902, AMCASE, and CHIT2.