Chitinases catalyze the degradation of chitin, a ubiquitous polymer generated from the cell walls of fungi, shells of crustaceans, and cuticles of insects
Other than this, Several organisms including bacteria, fungi, insects, plants, and animals produce chitinases
Specifically these are glycoside hydrolases that hydrolyze the β-1,4-glycosidic bonds between the N-acetyl-d-glucosamine residues that comprise a chitin chain
CHIs are inducible enzymes, i.e., they are expressed only under certain conditions induced by a certain factor and are regulated by a repressor/inducer system.