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Catalog Number | orb1494760 |
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Category | Proteins |
Description | B-cell activating factor, also known as BAFF, TALL-1, TNAK, and zTNF4, is a member of theTNF ligand superfamily 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 lacking 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% aa 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, resting CD4+ T cells, thymus and peripheral blood leukocytes. |
Form/Appearance | Lyophilized after extensive dialysis against PBS. |
Purity | > 95% as analyzed by SDS-PAGE and HPLC. |
MW | 17kDa, observed by non-reducing SDS-PAGE. |
Protein Sequence | AVQGPEETVTQDCLQLIADSETPTIQKGSYTFVPWLLSFKRGSALEEKENKILVKETGYFFIYGQVLYTDKTYAMGHLIQ RKKVHVFGDELSLVTLFRCIQNMPETLPNNSCYSAGIAKLEEGDELQLAIPRENAQISLDGDVTFFGALKLL |
Source | CHO |
Biological Activity | ED505.0 x 10ˆ4 units/mg. |
Endotoxins | < 0.2 EU/μg, determined by LAL method. |
Storage | Lyophilized recombinant human B-Cell Activating Factor (BAFF) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rh-BAFF should be stable up to 1 week at 4°C or up to 2 months at -20°C. |
Buffer/Preservatives | Lyophilized after extensive dialysis against PBS. |
Alternative names | BAFF, BLYS, CD257, TALL1, THANK, ZTNF4, TALL-1, TN Read more... |
Note | For research use only |
Application notes | Reconstituted in ddH2O or PBS at 100 μg/ml. |
Expiration Date | 6 months from date of receipt. |