Description
Key facts
Detection method:Colorimetric,
Sample types:Heparin Plasma, Citrate plasma, Serum, EDTA Plasma,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:= 12.7 pg/mL,
Range:0.08 - 5 ng/mL,
Assay time:1h 30m,
Assay Platform:Microplate
Product details:
Human BAFF ELISA Kit (TNFSF13B) (ab188391) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of BAFF (TNFSF13B) protein in cit plasma, edta plasma, hep plasma, and serum. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human BAFF (TNFSF13B) with 12.7 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
B-cell activating factor (BAFF) protein that is encoded by the TNFSF13B gene. BAFF protein is expressed in B-cell lineage cells which functions as a cytokine and is also a member of the tumor necrosis factor (TNF) family of ligands. The BAFF cytokine acts as a potent B-cell activator promoting the proliferation and differentiation of B-cells. This protein is expressed as a membrane-bound type II transmembrane protein on various cell types including monocytes, dendritic cells and bone marrow stromal cells. The membrane bound form can be cleaved from the membrane, generating a soluble protein fragment. BAFF steady-state concentrations depend on B‑cells and also on the expression of BAFF-binding receptors.
Inadequate levels of BAFF will fail to activate B-cells to produce enough immunoglobulin and will lead to immunodeficiency. Excessive level of BAFF causes abnormally high antibody production, results in systemic lupus erythmatosis, rheumatoid arthritis, and many other autoimmune diseases.
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
BAFF also known as B-cell activating factor or TNFSF13B is a protein important for B-cell survival and maturation. It's a type II transmembrane protein expressed in cells like macrophages and dendritic cells and has a mass of approximately 31 kDa. The BAFF protein is also present on activated T-cells and in the serum as a soluble form. It functions as a cytokine and influences various stages of B-cell development.
Biological function summary
BAFF plays a significant role in the humoral immune response by enhancing B-cell proliferation and function. It belongs to the tumor necrosis factor (TNF) ligand family and interacts as a homotrimer. The BAFF cytokine can bind to receptors such as BAFF-R BCMA (B-cell maturation antigen) and TACI (transmembrane activator and CAML interactor). These interactions regulate B-cell homeostasis promoting development and differentiation processes important for normal immune responses.
Pathways
BAFF is central to the regulation of immune system signaling particularly in B-cell receptor (BCR) signaling and NF-kB pathway activation. The BAFF-R mediates B-cell survival signals through the NF-kB pathway while TACI and BCMA associations convey additional immune responses regulation. These multiple pathways ensure the maintenance of B-cell populations and their ability to produce antibodies.
BAFF has been linked to conditions such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). Elevated levels of BAFF can exacerbate autoimmune responses due to increased B-cell survival. Connections with these disorders involve the BAFF-R and its influence on excessive B-cell proliferation contributing to disease pathology. Therapeutically anti-BAFF therapies target these interactions to modify disease progression and manage autoimmunity.
