Recombinant Human Tumor necrosis factor ligand superfamily member 13B(TNFSF13B) ,partial

In Stock
Code CSB-MP897523HU1
Size
Image
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • Activity
    Measured by its binding ability in a functional ELISA. Immobilized TNFSF13B at 10 μg/ml can bind human BCMA (CSB-MP023974HU1), the EC50 of human TNFSF13B protein is 221.3-298.6 ng/ml. Biological Activity Assay
  • Human SIRPA protein His/Myc tag (CSB-MP021334HU) captured on COOH chip can bind Human CD47 protein Fc tag (CSB-MP004940HU) with an affinity constant of 19.1 nM as detected by LSPR Assay. Biological Activity Assay
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Product Details

Purity Greater than 93% as determined by SDS-PAGE.
Endotoxin Less than 1.0 EU/ug as determined by LAL method.
Activity ①Measured by its binding ability in a functional ELISA. Immobilized TNFSF13B at 10 μg/ml can bind human BCMA (CSB-MP023974HU1), the EC50 of human TNFSF13B protein is 221.3-298.6 ng/ml.②Human SIRPA protein His/Myc tag (CSB-MP021334HU) captured on COOH chip can bind Human CD47 protein Fc tag (CSB-MP004940HU) with an affinity constant of 19.1 nM as detected by LSPR Assay.
Target Names TNFSF13B
Uniprot No. Q9Y275
Research Area Cancer
Alternative Names B lymphocyte stimulator (BLyS) (B-cell-activating factor) (BAFF) (Dendritic cell-derived TNF-like molecule) (TNF- and APOL-related leukocyte expressed ligand 1) (TALL-1)
Molecular Characterization
Species Homo sapiens (Human)
Source Mammalian cell
Expression Region 134-285aa
Target Protein Sequence AVQGPEETVTQDCLQLIADSETPTIQKGSYTFVPWLLSFKRGSALEEKENKILVKETGYFFIYGQVLYTDKTYAMGHLIQRKKVHVFGDELSLVTLFRCIQNMPETLPNNSCYSAGIAKLEEGDELQLAIPRENAQISLDGDVTFFGALKLL
Mol. Weight 46.6 kDa
Protein Length Partial
Tag Info N-terminal hFc-tagged
Form Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
Datasheet & COA Please contact us to get it.

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Target Data

Function Cytokine that binds to TNFRSF13B/TACI and TNFRSF17/BCMA. TNFSF13/APRIL binds to the same 2 receptors. Together, they form a 2 ligands -2 receptors pathway involved in the stimulation of B- and T-cell function and the regulation of humoral immunity. A third B-cell specific BAFF-receptor (BAFFR/BR3) promotes the survival of mature B-cells and the B-cell response.
Gene References into Functions
  1. BAFF loop region controls B cell survival and regulates recognition by different inhibitors PMID: 29572442
  2. analysis of how BAFF is neutralized by belimumab gives insight into treatment of systemic lupus erythematosus PMID: 29572471
  3. Study uncovers a previously unrecognized regulation of BAFF by testosterone and raises important questions about BAFF in testosterone-mediated protection against autoimmunity. Among healthy men, serum BAFF levels are higher in men with low testosterone. PMID: 29802242
  4. High BAFF expression is associated with systemic lupus erythematosus. PMID: 28992184
  5. Co-immunoprecipitation analysis and siRNA-mediated suppression of CREB expression indicated that phospho-CREB has a positive effect on pro-inflammatory gene expression in the crosstalk between BAFF- and TLR4-mediated signaling by forming trimeric complexes containing NF-kappaB, CBP, and CREB PMID: 28374824
  6. this study shows that BAFF augments IgA2 and IL-10 production by TLR7/8 stimulated total peripheral blood B cells PMID: 28921509
  7. elevated pretransplant serum BAFF levels negatively affect renal allograft survival and represent a risk factor for allosensitization and subsequent antibody-mediated rejection PMID: 29277566
  8. Increased BAFF expression is associated with B cell class switching in patients with tuberculous pleural effusion. PMID: 29845274
  9. Expression patterns of BAFF and its receptors differ according to lupus nephritis class. PMID: 29087261
  10. Serum BAFF levels are elevated in idiopathic inflammatory myositis, more so in children. PMID: 29516280
  11. Post-transplant antibody mediated rejection in kidney transplantation recipients can be predicted by perioperative elevations in serum BAFF level. PMID: 27888573
  12. The results of the present study revealed a correlation between BAFF and the PI3K/Akt/mTOR signaling pathway, and it is hypothesized that they are involved in the pathogenesis of lupus nephritis PMID: 28849060
  13. The results suggest that increased levels of BAFF and APRIL produced in the central nervous system may influence the development of anti-neutrophil cytoplasmic antibody-hypertrophic pachymeningitis. PMID: 28847534
  14. Blood B lymphocyte stimulator (BLyS)/BAFF levels of HIV-uninfected commercial sex workers (CSWs) were lower than those observed in both HIV-infected CSW and HIV-uninfected non-CSW groups. PMID: 27561453
  15. our study throws light on the crosstalk between BAFF and BCR signaling pathways in neoplastic B cells, and provides insights into the mechanistic effects of SYK inhibitors in CLL. PMID: 28838991
  16. genetic polymorphisms of BAFF may increase the risk of posttransplant development of donor specific antibodies in kidney allograft recipients PMID: 28624489
  17. P\pre-sensitized patients had significantly higher BAFF levels before transplantation and suffered significantly more often from early steroid-resistant, mainly antibody-mediated rejections PMID: 28867309
  18. Elevated blood BAFF levels could be associated with a more stable disease. PMID: 27383531
  19. BAFF rs9514828 polymorphism may be associated with the chronic hepatitis and the combinatorial action of rs9514828 and rs12583006 may confer susceptibility to chronic HBV infection and the resolution of the infection, suggesting that host genetic factors associated with B cell mediated immune responses are involved in chronic HBV infection. PMID: 28627389
  20. This study demonstrated that An Increase of Cerebrospinal Fluid B-cell Activating Factor Level in Pediatric Patients With Acute Viral Encephalitis. PMID: 28259511
  21. data show that BAFF levels at the time of cGvHD diagnosis are associated with non-relapse-mortality, and also are potentially useful for risk stratification. PMID: 28481353
  22. BAFF-R was consistently expressed on B cells infected by HCMV. Enhancement of BAFF/BAFF-R signaling decreased the apoptosis rate and extended the survival of B cells. PMID: 28442365
  23. soluble BCMA sequesters circulating BAFF, thereby preventing it from performing its signaling to stimulate normal B-cell and plasma cell development, resulting in reduced polyclonal antibody levels in multiple myeloma patients. PMID: 26960399
  24. up-regulated expression in intractable temporal lobe epilepsy PMID: 28441631
  25. results showed that serum BAFF in nasal type, extranodal NK/T cell lymphoma patients was significantly higher than that in control group and negatively correlated with patients' survival. PMID: 27668971
  26. BAFF has a role in inducing IL35 production by regulatory B cells in lupus PMID: 28844943
  27. Inhibition of ADAM10 augments BAFF-dependent survival of primary human B cells, whereas inhibition of ADAM17 increases BAFFR expression levels PMID: 28249164
  28. Data presented show that B-cell activating factor (BAFF) plays a central role in the induction and maintenance of cigarette smoke-induced pulmonary antinuclear antibodies and suggest a therapeutic potential for BAFF blockade in limiting autoimmune processes associated with smoking. PMID: 28039405
  29. Among the BAFF receptors in a cohort of rheumatoid arthritis (RA) patients, the AA have shown, by fluorescence activated cell sorter (FACS) analysis of median fluorescence intensity (MFI), that transmembrane activator and calcium-modulating cyclophilin ligand interactor (TACI) and B cell maturation antigen (BCMA) do not change PMID: 28834574
  30. The BAFF promoter increased in response to TNF-alpha treatment or overexpression of HIF-1alpha. However, TNF-alpha-induced BAFF expression and promoter activity decreased after treatment with the ERK inhibitor PD98059. PMID: 28383556
  31. This study indicates that orbital fibroblasts from Graves' orbitopathy can express BAFF and mediate the intraorbital survival of B cells via BAFF mechanism. PMID: 28087387
  32. Rapamycin attenuates excessive hsBAFF-induced cell proliferation/survival via blocking mTORC1/2 signaling in normal and neoplastic B-lymphoid cells. PMID: 28300280
  33. Inhibition of B cell plasmablast differentiation by reduction of Aiolos and Ikaros may have utility in the treatment of systemic lupus erythematosus , where elevated levels of BAFF and Aiolos may prime CD27(+) memory and double negative memory-like B cells to become Ab-producing plasmablasts in the presence of BAFF and proinflammatory cytokines. PMID: 28848067
  34. BCMA has other contributors for ligands binding except DxL motif. The affinity of BCMA for APRIL higher than for BAFF may be caused by the segment outside of the conservative DxL motif. Moreover, the exposition of new binding modes of BCMA2 interacting with APRIL may establish the foundation of designing novel drugs in the future PMID: 28260502
  35. study demonstrated a high prevalence of endogenous antibodies to BAFF in a multi-ethnic Asian systemic lupus erythematosus (SLE) cohort; while levels of serum BAFF correlated positively with disease activity, levels of anti-BAFF antibody were correlated negatively with levels of its target cytokine, anti-dsDNA antibody and clinical disease activity PMID: 28388832
  36. this study provides new useful information about the increased levels of BAFF observed during HIV-1 infection and highlights the importance of macrophages as a source of BAFF PMID: 27022194
  37. The novel association between BAFF and inflammatory bowel disease (IBD) seems to identify that BAFF might regulate the inflammatory process in these diseases and it appears to be a potential marker of IBD. PMID: 27056038
  38. In BAFF, rs2893321 may be a susceptible genetic variant for the development of GD and AITDs. Associations of rs2893321 with susceptibility to GD and AITDs and the correlation between rs2893321 and TAb exhibit a dimorphic pattern. Additional studies with larger sample sizes are required to confirm our findings. PMID: 27136204
  39. BAFF and IL-17A are associated with different subphenotypes of primary Sjogren's syndrome. PMID: 25941062
  40. The expression levels of serum BAFF and the three receptors (TACI, BCMA and BAFF-R) in non-Hodgkin lymphoma patients were significantly higher than in healthy controls. PMID: 28028945
  41. Plasma BAFF levels were positively associated with serum creatinine, proteinuria, uric acid and group A Streptococcus infection index in patients with IgA nephropathy. PMID: 28260100
  42. this study shows that chicoric acid suppresses BAFF expression by inhibiting NF-kappaB activity, and chicoric acid may serve as a novel therapeutic agent to down-regulate excessive BAFF expression in autoimmune diseases PMID: 28122293
  43. Findings indicate that BAFF expression is significantly increased in chronic rhinosinusitis with nasal polyps patients and may orchestrate inflammatory load in polyp tissues by regulating T and B cell-mediated response. PMID: 28035475
  44. Urinary APRIL (uAPRIL) and BAFF (uBAFF) levels were raised significantly in AN. PMID: 27804111
  45. BAFF levels are lower in patients with antibody-mediated kidney rejection and also in patients with concurrent humoral and cellular rejection compared with patients without rejection PMID: 28083608
  46. The BLyS level is increased in some lupus patients. There was a moderate correlation with titers of anti-DNA antibody and disease activity. PMID: 27100979
  47. In Sjogren's syndrome (SS) patients, EULAR Sjogren's syndrome disease activity index (ESSDAI) is negatively associated with serum levels of 25(OH)-D3 and positively associated with BAFF. PMID: 28074193
  48. These results suggest that miR-202 functions as a modulator that can negatively regulate BAFF by inhibiting multiple myeloma tumor cell survival, growth, and adhesion in the bone marrow microenvironment. PMID: 25971527
  49. Variants in BAFF gene is associated with chronic lymphocytic leukemia. PMID: 27468724
  50. The results demonstrated that BAFF has an important role in the pathogenesis of newly diagnosed childhood immune thrombocytopenia. PMID: 24911453

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Subcellular Location Cell membrane, Single-pass type II membrane protein, SUBCELLULAR LOCATION: Tumor necrosis factor ligand superfamily member 13b, soluble form: Secreted
Protein Families Tumor necrosis factor family
Tissue Specificity Abundantly expressed in peripheral blood Leukocytes and is specifically expressed in monocytes and macrophages. Also found in the spleen, lymph node, bone marrow, T-cells and dendritic cells. A lower expression seen in placenta, heart, lung, fetal liver,
Database Links

HGNC: 11929

OMIM: 603969

KEGG: hsa:10673

STRING: 9606.ENSP00000365048

UniGene: Hs.525157

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