Acid protease active in intracellular protein breakdown. Involved in the pathogenesis of several diseases such as breast cancer and possibly Alzheimer disease. Consists of a light chain and a heavy chain. Belongs to the peptidase A1 family. Note: This description may include information from UniProtKB.
Protein type: Autophagy; EC 188.8.131.52; Motility/polarity/chemotaxis; Protease
Biological Process: antigen processing and presentation of exogenous peptide antigen via MHC class II; autophagy; collagen catabolic process; neutrophil degranulation; protein catabolic process; proteolysis