Key Product Details

Species Reactivity

Human

Applications

Intracellular Staining by Flow Cytometry

Label

Alexa Fluor 350 (Excitation = 346 nm, Emission = 442 nm)

Antibody Source

Monoclonal Mouse IgG1 Clone # 137314

View all BAFF/BLyS/TNFSF13B Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human BAFF/BLyS/TNFSF13B
Ala81-Leu285
Accession # Q9Y275

Specificity

Detects human BAFF/BLyS/TNFSF13B in direct ELISAs and Western blots. In Western blots, approximately 5% cross‑reactivity with recombinant human (rh) TL1A/TNSF15 is observed and no cross-reactivity with rhAPRIL, rhTNF-alpha, rhFas Ligand, rhGITR Ligand, rhLIGHT, rhTRAIL, rhTRANCE, or rhTWEAK is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications for Human BAFF/BLyS/TNFSF13B Alexa Fluor® 350-conjugated Antibody

Application
Recommended Usage

Intracellular Staining by Flow Cytometry

0.25-1 µg/106 cells
Sample: Human peripheral blood mononuclear cells treated with PMA and Ca2+ ionomycin, fixed with paraformaldehyde, and permeabilized with saponin

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: BAFF/BLyS/TNFSF13B

BAFF (also known as TALL-1, BLyS, and THANK) is a type II transmembrane glycoprotein belonging to the TNF superfamily and has been designated as TNF superfamily member 13B (TNFSF13B). Human BAFF is a 285 amino acid (aa) protein consisting of a 218 aa extracellular domain, a 21 aa transmembrane region and a 46 aa cytoplasmic tail (1, 2). 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 (3, 4). A higher ordered structure composed of a cluster of trimeric units resembling the structure of a viral capsid has also been reported (4). Human BAFF may be shed from the cell surface by proteolytic cleavage between R133 and Ala134 to yield a soluble form of the protein that is detectable in serum (1, 5). Within the TNF superfamily BAFF shares the highest homology (48%) with APRIL (1). BAFF shares with APRIL the ability to bind to BCMA and TACI and also binds specifically to BAFF receptor (BAFF R, also known as BR3 or TNFSFR13C), which is the principal BAFF receptor (6 - 8). All three receptors are type III transmembrane proteins that are expressd in B cells. BAFF and APRIL can form active heteromers that bind to TACI (9). BAFF is expressed in peripheral blood mononuclear cells, in spleen and lymph nodes. Its expression in resting monocytes is up-regulated 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 (10). BAFF also plays an important role in the development of lymphoid tissue and enhances the survival of activated memory B cells (7, 11). Human and mouse BAFF share 86% aa sequence identity (1).

References

  1. Schneider, P. et al. (1999) J. Exp. Med. 189:1747.
  2. Mukhopadhyay, A. et al. (1999) J. Biol. Chem. 274:15978.
  3. Karpusas, M. et al. (2002) J. Mol. Biol. 315:1145.
  4. Liu, Y. et al. (2002) Cell 108:383.
  5. Cheema, G.S. et al. (2001) Arthr. Rheum. 44:1313.
  6. Marsters, S.A. et al. (2000) Curr. Biol. 10:785.
  7. Thompson, J.S. et al. (2001) Science 293:2108.
  8. Ng, L.G. et al. (2004) J. Immunol. 173:807.
  9. Roschke, V. et al. (2002) J. Immunol. 169:4314.
  10. Batten, M. et al. (2000) J. Exp. Med. 192:1453.
  11. Avery, D.T. et al. (2003) J. Clin. Invest. 112:286.

Long Name

B cell Activating Factor

Alternate Names

BLyS, CD257, TALL1, THANK, TNFSF13B, ZTNF4

Entrez Gene IDs

10673 (Human); 24099 (Mouse); 498666 (Rat); 102123214 (Cynomolgus Monkey)

Gene Symbol

TNFSF13B

UniProt

Q9Y275

Additional BAFF/BLyS/TNFSF13B Products

Product Documents for Human BAFF/BLyS/TNFSF13B Alexa Fluor® 350-conjugated Antibody

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human BAFF/BLyS/TNFSF13B Alexa Fluor® 350-conjugated Antibody


This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

For research use only

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