Cathepsin B

**Definition:** A lysosomal cysteine proteinase with a specificity similar to 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 NEOPLASM INVASIVENESS.

**Tree numbers:** - D08.811.277.656.224.125 - D08.811.277.656.262.500.133 - D08.811.277.656.300.200.133

**Synonyms:** - Cathepsin B1