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由来生物
human liver
品質水準
フォーム
solution
比活性
≥0.5 units/mg protein
テクニック
activity assay: suitable
pH範囲
4.5—5.5
UniProtアクセッション番号
アプリケーション
pharmaceutical
輸送温度
dry ice
保管温度
−20°C
遺伝子情報
human ... CTSL1(1514)
詳細
The cathepsin L (CTSL) gene is mapped to human chromosome 9q21.33. It encodes a lysosomal cysteine proteinase that belongs to the peptidase C1 family. The enzyme is a dimer of a heavy (175 amino acids) and a light chain (42 amino acids) linked by disulfide bonds.
アプリケーション
Cathepsin L (CTSL) from human liver has been used:
- to digest mutant transforming growth factor β-induced (TGFBIp) and LC3 (autophagosomes marker) proteins in vitro
- to digest the pH-dependent fibril of a pre-melanosomal protein (Pmel17) repeat domain (RPT) isoform and study the effect of pH on sRPT aggregation kinetics by tryptophan fluorescence
- to analyze the inhibition of CTSL by small molecules or drugs in a cell-free system
生物化学的／生理学的作用
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. Elastin, collagen, and α-1 protease inhibitors act as substrates for cathepsin L (CTSL). CTSL cleaves several proteins including enzymes, receptors, and 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 overgrowth, and 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.
単位の定義
1ユニットは、pH 5.5、25°Cで1分間に1 μmolのZ-Phe-Arg-AFCを加水分解する量です。
物理的形状
20mM マロン酸溶液 (pH 5.5, 1mM EDTA, 400mM NaCl含有)。
保管分類コード
10 - Combustible liquids
WGK
WGK 3
引火点(°F)
Not applicable
引火点(℃)
Not applicable
適用法令
試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。
Jan Code
C6854-VAR:
C6854-BULK:
C6854-25UG:
C6854-25UG-PW:
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Bing-Jie Lv et al.
Atherosclerosis, 230(1), 100-105 (2013-08-21)
Cathepsin L (CatL), cathepsin K (CatK), and cathepsin V (CatV) are potent elastases implicated in human arterial wall remodeling. Whether plasma levels of these cathepsins are altered in patients with abdominal aortic aneurysms (AAAs) remains unknown. Plasma samples were collected
Stefan Tholen et al.
Cellular and molecular life sciences : CMLS, 71(5), 899-916 (2013-07-03)
Endolysosomal cysteine cathepsins functionally cooperate. Cathepsin B (Ctsb) and L (Ctsl) double-knockout mice die 4 weeks after birth accompanied by (autophago-) lysosomal accumulations within neurons. Such accumulations are also observed in mouse embryonic fibroblasts (MEFs) deficient for Ctsb and Ctsl.
Violeta Morin et al.
PloS one, 7(11), e46850-e46850 (2012-11-13)
Proteolysis of sperm histones in the sea urchin male pronucleus is the consequence of the activation at fertilization of a maternal cysteine protease. We previously showed that this protein is required for male chromatin remodelling and for cell-cycle progression in
M Hafner Česen et al.
Cell death & disease, 4, e818-e818 (2013-10-05)
A sigma-2 receptor agonist siramesine has been shown to trigger cell death of cancer cells and to exhibit a potent anticancer activity in vivo. However, its mechanism of action is still poorly understood. We show that siramesine can induce rapid
Bailey Miller et al.
Journal of natural products, 77(1), 92-99 (2013-12-25)
A number of marine natural products are potent inhibitors of proteases, an important drug target class in human diseases. Hence, marine cyanobacterial extracts were assessed for inhibitory activity to human cathepsin L. Herein, we have shown that gallinamide A potently
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