| cathepsin | <protein> Intracellular proteolytic enzymes of animal tissues, such as cathepsin B, a lysosomal thiol proteinase, C, dipeptidyl peptidase, D, that has pepsin like specificity, G, similar to chymotrypsin, H, that possesses aminopeptidase activity, N, that attacks N terminal peptides of collagen and so on. (18 Nov 1997) |
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| cathepsin b | <enzyme> A lysosomal cysteine proteinase which hydrolyzes proteins, with a specificity resembling that of papain. The enzyme is present in a variety of tissues and is important in many physiological and pathological processes. In pathology, cathepsin b has been found to be involved in demyelination, emphysema, rheumatoid arthritis, and neoplastic infiltration. Registry number: EC 3.4.22.1 (12 Dec 1998) |
| cathepsin d | <enzyme> An intracellular proteinase found in a variety of tissue. It has specificity similar to but narrower than that of pepsin a. The enzyme is involved in catabolism of cartilage and connective tissue. Registry number: EC 3.4.23.5 (12 Dec 1998) |