| Identification | Back Directory | [Name]
CATHEPSIN L | [CAS]
60616-82-2 | [Synonyms]
Native Human Cathepsin L
cathepsin l from human liver
Aldrichina grahami cysteine proteinase
Pacific whiting surimi wash water proteinase
Cathepsin L from human liver >=0.5 units/mg protein, solution | [Molecular Formula]
NULL | [MDL Number]
MFCD00163235 |
| Hazard Information | Back Directory | [Uses]
The most powerful of the lysosomal proteinases. It has a higher specific activity than cathepsin B and H in the degradation of a variety of physiological protein substrates. | [Biological Activity]
Cathepsin L (CTSL) exhibits endopeptidase activity and breaks peptide bonds with aromatic residues. This enzyme is functional at pH 3.0–6.5 with thiol compounds. Elastincollagenand α-1 protease inhibitors act as substrates for cathepsin L (CTSL). CTSL cleaves several proteins including enzymesreceptorsand transcription factors. It is involved in antigenic peptide production and controls B-cells homeostasis. It is associated with myofibril necrosis and tumor progression. Increased expression of CTSL promotes metastasis and relates to poor prognosis in cancer patients. Increased expression of CTSL is observed in breast cancer. CTSL is implicated in glioblastoma multiforme (GBM)middle east respiratory syndrome (MERS)gingival overgrowthand severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It has a higher specific activity than cathepsin B and H in the degradation of a variety of physiological protein substrates. |
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