Recombinant Mouse Cathepsin S Protein

Supplier: Elabscience Product Name: Recombinant Mouse Cathepsin S Protein Catalog No. PKSM041202 Product Type: recombinant protein Size: 50 ug Activity: Measured by its ability to cleave the fluorogenic peptide substrate, Mca-RPKPVENval-WRK (Dnp)-NH2, AnaSpec, Catalog # 27114.The specific activity is >300 pmoles/min/?g.(Activation description: The enzyme achieves its activity under acidic pH) Protein Construction: Recombinant Mouse Cathepsin S is produced by our Mammalian expression system and the target gene encoding Val18-Ile340 is expressed with a 6His tag at the C-terminus. Sequence: Met 1-Ile 340 Fusion Tag: C-6His Accession: AAB94925.1 Species: Mouse Expressed Host: Human Cells Shipping Conditions: In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Purity: ?95% as determined by reducing SDS-PAGE. Endotoxin: <1.0 EU per ?g as determined by LAL test. Stability: Lyophilized protein should be stored at < -20?, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7? for 2-7 days.Aliquots of reconstituted samples are stable at < -20? for 3 months Molecular Weight: 37.5 kDa Applied MM: 13&30 kDa Formulation: Lyophilized from a 0.2 ?m filtered solution of 20mM PB,150mM NaCl,pH7.4. Reconstitution: Please refer to it for detailed information. Background: Cathepsin S is a lysosomal enzyme that belongs to the papain family of cysteine proteases. This protein is expressed by antigen presenting cells including macrophages, B-lymphocytes, dendritic cells and microglia. Moreover, cathepsin S is expressed in some epithelial cells. Compared with the abundant cathepsins B, L and H, cathepsin S shows a restricted tissue distribution, with highest levels in spleen, heart, and lung. In addition, evidences indicated that cathepsin S generates A beta from amyloidogenic fragments of beta APP in the endosomal/lysosomal compartment, and is implicated in the pathogenesis of Alzheimer’s disease (AD) and Down Syndrome (DS).