Recombinant Human BAFF-R

BAFF receptor (BAFF R/TNFRSF13/BlyS) is a type III transmembrane protein and member of the TNF receptor (TNFR) super family. It is highly expressed in spleen, lymph node, resting B cells, peripheral blood leukocytes and to some extent, in activated B cells and resting CD4+ cells. BAFF R plays a role in nearly all stages of differentiation of B cells from development to the maintenance of long-lived bone marrow plasma cells. ¹ BAFF R is one of three receptors, including TACI and BCMA, identified for BAFF. BAFF R signals by activation of the NFκB signaling pathway.² Overexpression of the BAFF R ligand, BAFF, in mice leads to autoimmune characteristics similar to systemic lupus erythematosus (SLE) and Sjogren’s syndrome. Furthermore, high levels of BAFF have been detected in the serum of humans with SLE, rheumatoid arthritis, Sjogren’s syndrome and systemic sclerosis.