Anti-chitobiase antibodies are used for the immunodetection of the protein encoded by the CTBS gene. In humans, the canonical protein has a reported length of 385 amino acid residues and a mass of 43.8 kDa. Its subcellular localization is in the lysosomes. A member of the Glycosyl hydrolase 18 protein family, it is reported to be involved in degradation of asparagine-linked glycoproteins. Post-translational modifications have been described, including glycosylation. Other names for this target antigen include di-N-acetylchitobiase, chitobiase, di-N-acetyl-, and CTB. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. These chitobiase antibodies are widely used in Western Blot experiments, among other applications.