MsCD40L Recombinant Proteïne

Source : Escherichia Coli. sCD40 Mouse Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 149 amino acids and having a molecular mass of 16409 Dalton. The sCD40 is purified by proprietary chromatographic techniques. CD40L or CD154 is a membrane glycoprotein and differentiation antigen expressed on the surface of T-cells. The CD40 ligand stimulates B-cell proliferation and secretion of all immunoglobulin isotypes in the presence of cytokines . CD40 ligand has been shown to induce cytokine production and tumoricidal activity in peripheral blood monocytes. It also costimulates proliferation of activated T-cells and this is accompanied by the production of IFN-gamma , TNF-alpha , and IL2 .

CD40-L||Tumor necrosis factor ligand superfamily member 5||TNF-related activation protein||TRAP||T cell antigen Gp39||CD154 antigen||sCD40||IGM||IMD3||HIGM1||T-BAM||TNFSF5||hCD40L.

Greater than 98.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.

Lyophilized from a sterile concentrated solution (1mg/mL) with 10mM Sodium Phosphate pH=7.5.

Lyophilized sCD40 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CD154 should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA) .Please prevent freeze-thaw cycles.

It is recommended to reconstitute the lyophilized sCD40 in sterile 18MΩ-cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions. The ED50 as determined by its ability to induce MIP-1 alpha & TNF-alpha from mouse splenocytes was found to be 0.1μg/ml corresponding to a Specific Activity of 10,000,000IU/mg.

The sequence of the first five N-terminal amino acids was determined and was found to be Met-Gln-Arg-Gly-Asp.