Mouse BAFF/BLyS/TNFSF13B APC-conjugated Antibody

Applications

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Preparation and Storage

Background: BAFF/BLyS/TNFSF13B

BAFF (also known as TALL-1, BLyS, THANK) is a 34-36 kDa type II transmembrane glycoprotein belonging to the BAFF family of the TNF superfamily, and has been designated as TNF superfamily member 13B (TNFSF13B). Mouse BAFF is a 309 amino acid (aa) protein consisting of a 248 aa extracellular domain, a 21 aa transmembrane region and a 45 aa cytoplasmic tail. BAFF has the typical structural characteristics of the TNF superfamily ligands. It is a homotrimeric protein having the structurally conserved motif known as TNF homology domain. Mouse BAFF may be shed from the cell surface by proteolytic cleavage between R126 and Ala 127 to yield a soluble form of the protein detectable in serum. Within the TNF superfamily, BAFF shares the highest homology (48%) with APRIL, the only other member of the BAFF family of molecules. BAFF and APRIL both bind to BCMA and TACI, while BAFF also binds specifically to BAFF receptor (BAFF R, also known as BR3 or TNFSFR13C), which represents the principal BAFF receptor. All three receptors are type III transmembrane proteins that are expressed on B cells, monocytes, osteoclasts, activated T cells, adipocytes, keratinocytes and microglia. BAFF and APRIL can form active heteromers that bind TACI. BAFF is expressed by monocytes, osteoclasts, astrocytes, neutrophils, follicular T helper cells, dendritic cells and specialized fibroblasts. Its expression in resting monocytes is upregulated by IFN-alpha, IFN-beta, LPS and IL-10. BAFF provides critical survival signals to a subset of B cells with intermediate maturation status (T2 B cells) during the immune response. BAFF also plays an important role in the development of lymphoid tissue and enhances the survival of activated memory B cells. Recent reports also show a role for BAFF in osteoclast formation. Over aa 127-309, mouse BAFF shares 93 and 72% aa sequence identity with rat and human BAFF, respectively.

Product Datasheets

Related Research Areas

• Co-stimulatory and Co-inhibitory Molecules
• Regulation of Apoptosis by TNF Superfamily Members
• Regulation of B Cell Activation and Homeostasis by TNF Superfamily Members
• Regulation of T Cell Co-stimulation by TNF Superfamily Members
• TNF Superfamily
• TNF Superfamily Ligands