金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: Cathepsin L Aliases: CTSL; CTSL1 Entrez Gene IDs: 1514 (Human); 13039 (Mouse); 1514 (Insect) Background: Cathepsin L Cathepsin L is a lysosomal cysteine protease expressed in most eukaryotic cells. Cathepsin L is known to hydrolyze a number of proteins, including the proform of urokinase-type plasminogen activator, which is activated by Cathepsin L cleavage. Cathepsin L has also been shown to proteolytically inactivate a1-antitrypsin and secretory leucoprotease inhibitor, two major protease inhibitors of the respiratory tract.