Recombinant Human BAFF protein

SKU: CD02286

Size:5 ug

Background:B-cell activating factor (BAFF), also known as Blys, TALL-1, TNAK, and zTNF4, is a TNF ligand superfamily member and has been designated TNFSF13B. Produced by macrophages, dendritic cells, and T lymphocytes, BAFF promotes the survival of B cells and is essential for B cell maturation. BAFF binds to three TNF receptor superfamily members: B-cell maturation antigen (BCMA/TNFRSF17), transmembrane activator and calcium-modulator and cyclophilin ligand interactor (TACI/TNFRSF13B) and BAFF receptor (BAFF R/BR3/TNFRSF 13C). These receptors are type III transmembrane proteins that lack a signal peptide. Whereas TACI and BCMA bind BAFF and another TNF superfamily ligand, APRIL (a proliferation-inducing ligand), BAFF R selectively binds BAFF. The BAFF R extracellular domain lacks the TNF receptor canonical cysteine-rich domain (CRD) and contains only a partial CRD with four cysteine residues. Human and mouse BAFF R share 56 % a.a. sequence identity. BAFF R is highly expressed in spleen, lymph node and resting B cells. It is also expressed at lower levels in activated B cell, in resting CD4+ T cells, in thymus and peripheral blood leukocytes.

Research_area:Immunology

Purity:> 95 % by SDS-PAGE and HPLC analyses.

Source:Escherichia coli.

Full product name:Recombinant Human B Cell Activating Factor

Biological activity:Fully biologically active when compared to standard. The ED5 as determined by a mouse splenocyte survival assay is .5-2 μg/ml.

Synonyms:TNFSF13B,BAFF, BLYS, CD257, DTL, TALL-1, TALL1, THANK, TNFSF2, TNLG7A, ZTNF4,Human

Endotoxin:Less than 1 EU/μg of rHuBAFF as determined by LAL method.

Storage:-20ºC

Sequence:MAVQGPEETV TQDCLQLIAD SETPTIQKGS YTFVPWLLSF KRGSALEEKE NKILVKETGY FFIYGQVLYT DKTYAMGHLI QRKKVHVFGD ELSLVTLFRC IQNMPETLPN NSCYSAGIAK LEEGDELQLA IPRENAQISL DGDVTFFGAL KLL

uniprot accession:Q9Y275

Molecular weight:Approximately 17.2 kDa, a single non-glycosylated polypeptide chain containing 153 amino acids.

Formulation:

Reconstitution:Lyophilized from a .2 μm filtered concentrated solution in PBS, pH 7..