Recombinant Mouse Inducible T-cell Costimulator Protein

Supplier: Elabscience Product Name: Recombinant Mouse Inducible T-cell Costimulator Protein Catalog No. PKSM041217 Product Type: recombinant protein Size: 50 ug Activity: Protein Construction: Recombinant Mouse Inducible T-cell Costimulator is produced by our Mammalian expression system and the target gene encoding Glu21-Leu142 is expressed with a 6His tag at the C-terminus. Sequence: Glu21-Leu142 Fusion Tag: C-6His Accession: Q9WVS0 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: 14.7 kDa Applied MM: 16-30kDa Formulation: Lyophilized from a 0.2 ?m filtered solution of PBS, pH7.4. Reconstitution: Please refer to it for detailed information. Background: Inducible Costimulator(ICOS) is a member of the growing CD28 family of immune costimulatory receptors. Other family members are CD28, CTLA4 and PD1. ICOS shares approximately 39% amino acid similarity with CD 28 and CTLA4. Mouse and human ICOS share approximately 72% amino acid identity. ICOS is expressed on most CD45RO+ cells. ICOS expression is up-regulated within approximately 24-48 hours of activation on Th primed cells. B7-H2, a member of the B7 family of costimulatory ligands, has been identified as the ICOS ligand. The B7-H2/ ICOS interaction appears to play roles in T cell dependent B cell activation and Th differentiation. In addition, ICOS is more potent in the induction of IL-10 production, acytokine important for suppressive function of T regulatory cells.