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Human CD40 Ligand / TNFSF5 Protein, Fc tag  pdf  pdf  pdf


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CDL-H5267-100ug
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CDL-H5267-1mg (500ug x 2)
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Synonym

CD40LG,CD154,CD40L,HIGM1,IGM,IMD3,T-BAM,TNFSF5,TRAP,gp39

Source

Human CD40 Ligand, Fc Tag (CDL-H5267) is expressed from human 293 cells (HEK293). It contains AA Met 113 - Leu 261 (Accession # P29965-1).

Predicted N-terminus: Pro

Molecular Characterization

Fc(Pro 100 - Lys 330)P01857
CD40 Ligand(Met 113 - Leu 261)P29965-1

This protein carries a human IgG1 Fc tag at the N-terminus.

The protein has a calculated MW of 43.3 kDa. As a result of glycosylation, the protein migrates as 45-50 kDa under reducing (R) condition, and 100-115 kDa under non-reducing (NR) condition (SDS-PAGE).

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.

Reconstitution

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Storage

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

No activity loss is observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

SDS-PAGE

Human CD40 Ligand, Fc Tag (Cat. No. CDL-H5267) SDS-PAGE gel

Human CD40 Ligand, Fc Tag on SDS-PAGE under reducing (R) and no-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity

Human CD40 Ligand, Fc Tag (Cat. No. CDL-H5267) ELISA bioactivity

Immobilized Human CD40 Ligand, Fc Tag (Cat. No. CDL-H5267) at 5 μg/mL (100 μL/well) can bind Biotinylated Human CD40, His Tag, Fc Tag (Cat. No. CD0-H82F2) with a linear range of 0.078-0.625 μg/mL (QC tested).

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Background

CD40 ligand is also known as CD40L, CD154, TNFSF5 and T-cell antigen Gp39, is a single-pass type I I membrane protein which belongs to the TNF superfamily of molecules. CD40 ligand is expressed predominantly on activated CD4+ T lymphocytes, and also found in other types of cells, including platelets, mast cells, macrophages, basophils, NK cells, B lymphocytes, as well as non-haematopoietic cells (smooth muscle cells, endothelial cells, and epithelial cells). Although all monomeric, dimeric and trimeric forms of soluble CD40 ligand can bind to CD40, the trimeric form of soluble CD40 ligand has the most potent biological activity through oligomerization of cell surface CD40, a common feature of TNF receptor family members. CD40 ligand binds to CD40 on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In general, CD40 ligand plays the role of a costimulatory molecule and induces activation in APC in association with T cell receptor stimulation by MHC molecules on the APC. In total CD40 ligand has three binding partners: CD40, α5β1 integrin and αIIbβ3. CD40 ligand regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper IgM syndrome.

References

Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.


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