Mouse CD40 Ligand/TNFSF5 Alexa Fluor® 700-conjugated Antibody

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FAB1163N-100UG
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Mouse CD40 Ligand/TNFSF5 Alexa Fluor® 700-conjugated Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse CD40 Ligand in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse (rm) CD27 Ligand, rmCD30 Ligand, or recombinant human CD40 Ligand is observed.
Source
Monoclonal Rat IgG2a Clone # 208109
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse CD40 Ligand/TNFSF5
Glu61-Leu260
Accession # P27548
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 700 (Excitation= 675-700 nm, Emission= 723 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25-1 µg/106 cells
Mouse splenocytes stimulated to induce Th1 cells

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.

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Preparation and Storage

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: CD40 Ligand/TNFSF5

CD40 ligand (CD40L; also known as CD154, TNFSF5, TRAP, or gp39) is a 260 amino acid (aa) type II transmembrane glycoprotein belonging to the TNF family. Mouse CD40L consists of a 22 aa cytoplasmic domain, a 24 aa transmembrane domain, and 214 aa extracellular domain bearing a single glycosylation site (1, 2). CD40L is expressed predominantly on activated CD4+ T lymphocytes and also found in other types of cells, including NK cells, mast cells, basophils, and eosinophils. Murine CD40L shares 78% amino acid sequence identity with human CD40L. Native bioactive soluble CD40L exists. Soluble human trimeric CD40L secreted by stimulated T cells has been shown to be generated by proteolysis in the microsomes (3). Both membrane bound and soluble CD40L induce similar effects on B cells (3, 4). The receptor of CD40L is CD40, a type I transmembrane glycoprotein belonging to the TNF receptor family. CD40 is expressed on B lymphocytes, monocytes, dendritic cells, and thymic epithelium. Although all monomeric, dimeric, and trimeric forms of soluble CD40L can bind to CD40, the soluble trimeric form of CD40L has the most potent biological activity through oligomerization of cell surface CD40, a common feature of TNF receptor family members (2). The genetic defect in the hyper-IgM syndrome is due to point mutations or deletions of the gene encoding the CD40L, which prevent CD40L from interacting with CD40 (5‑7). CD40L mediates a range of activities on B cells including induction of activation-associated surface antigen, entry into the cell cycle, isotype switching, Ig secretion, and memory generation (8, 9). CD40-CD40L interaction also plays important roles in monocyte activation and dendritic cell maturation (10).

References
  1. Armitage, R.J. et al. (1992) Nature 357:80.
  2. Hollenbaugh, D. et al. (1992) EMBO J. 11:4313.
  3. Fabienne, P. et al. (1996) J. Biol. Chem. 271:5965.
  4. Fabienne, P. et al. (1996) Eur. J. Immunol 26:725.
  5. Arrufo, A. et al. (1993) Cell 72:291.
  6. Hill, A. and N. Chapel et al. (1993) Nature 361:494.
  7. Korthauer, U. et al. (1993) Nature 361:539.
  8. Spriggs, M.K. et al. (1992) J. Exp. Med. 176:1543.
  9. Fanslow, W.C. et al. (1994) Seminars in Immunology 6:267.
  10. Kooten, C.V. and J. Banchereau (2000) J. Leukoc. Biol. 67:2.
Entrez Gene IDs
959 (Human); 21947 (Mouse); 84349 (Rat)
Alternate Names
CD154 antigen; CD154; CD40 antigen ligand; CD40 Ligand; CD40L; CD40-L; CD40LG; CD40LIGM; gp39; hCD40L; HIGM1; T-B cell-activating molecule; T-BAM; T-cell antigen Gp39; TNF-related activation protein; TNFSF5; TNFSF5IMD3; TRAP; TRAPtumor necrosis factor (ligand) superfamily, member 5 (hyper-IgM syndrome); tumor necrosis factor (ligand) superfamily member 5; Tumor necrosis factor ligand superfamily member 5

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