BAFF Receptor, Recombinant, Human (BAFFR, BAFF-R, B Cell-activating Factor Receptor, BLyS Receptor 3

BAFF Receptor (BAFFR), a member of the TNFR superfamily, is highly expressed in spleen, lymph node, and resting B cells and to some extent in activated B cells, resting CD4+ cells and peripheral blood leukocytes. BAFFR is a type III transmembrane protein that binds with high specificity to BAFF (TNFSF13B). BAFFR/BAFF signaling plays a critical role in B cell survival and maturation. Recombinant human BAFFR is a 76aa polypeptide (7.7kD) corresponding to the extracellular portion of the full BAFFR protein. Source: Recombinant protein corresponding to human BAFF Receptor, expressed in E.coli. Biological Activity: Determined by its ability to block BAFF induced mouse splenocyte survival. The expected ED50 for this effect is 2-4ug/ml in the presence of 1ug/ml of human soluble BAFF. Endotoxin: <0.1ng/ug (1EU/ug), AA Sequence: MRRGPRSLRG RDAPAPTPCV PAECFDLLVR HCVACGLLRT PRPKPAGASS PAPRTALQPQ ESVGAGAGEA ALPLPG, Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.