Description: Receptor for TNFSF13B/BLyS/BAFF and TNFSF13/APRIL. Promotes B-cell survival and plays a role in the regulation of humoral immunity. Activates NF-kappa-B and JNK. (www.uniprot.org) Produced in E.coli as a single, non-glycosylated, polypeptide chain containing 50 amino acids.