Merck, 219343-25UG, Cathepsin S, Human, Recombinant, E. coli

General description
Note: 1 mU = 1 milliunit.
Research area: Cell Signaling

Recombinant, human cathepsin S expressed in E. coli without a tag or fusion protein. A major lysosomal cysteine proteinase that is preferentially expressed in macrophages and microglia. Shown to be involved in the processing of antigenic peptides for presentation by MHC Class II molecules on the surface of antigen-presenting cells by mediating invariant (Ii) chain degradation. Inhibition of cathepsin S results in impaired antigen-presentation.
Application
Cathepsin S, Human, Recombinant, E. coli has been used in cathepsin digestion reactions.
Biochem/physiol Actions
Cathepsin S is a cysteine protease that plays a role in degradation of class II complexes in human B lymphocytes. It possesses endoproteolytic activity and aids in processing and presenting antigens to immune cells, thereby influencing the immune response. Cathepsin S is involved in facilitating the degradation of damaged or unwanted proteins within the endo-lysosomal pathway. Dysregulation of Cathepsin S activity leads to the development of various diseases such as arthritis, cancer, and cardiovascular diseases.
Physical form
In 35 mM MES, 35 mM sodium acetate, 2 mM DTT, 2 mM EDTA, 50% ethylene glycol, pH 6.4.
Preparation Note
Following initial thaw, aliquot and freeze (-70°C).
Other Notes
Liuzzo, J.P., et al. 1999. Mol. Med.5, 334.
Riese, R.J., et al. 1998. J. Clin. Invest.101, 2351.
Sukhova, G.K., et al. 1998. J. Clin. Invest.102, 576.
Kirschke, H., and Wiederanders, B. 1994. Methods Enzymol.244, 500.
Xin, X.Q., et al. 1992. Arch. Biochem. Biophys.299, 334.
Kirschke, H., et al. 1989. Biochem. J.264, 467.
One unit is defined as the amount of enzyme that will hydrolyze 1.0 µmol Z-VVR-AMC per min at 37°C, pH 6.5. Note: 1 mU = 1 milliunit.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Harmful (C)