PROVETOP

Biotinylated Human/Cynomolgus/Rhesus macaque CD40 Ligand/TNFSF5 Trimer Protein

Catalog No: CD40-HB005

Species
Human/Cyno/Rhesus
Expression System
HEK293
Tag
His , Avi, Flag
Activity
Activity verified

Product overview

Recombinant Biotinylated Human/Cynomolgus/Rhesus macaque CD40 Ligand/TNFSF5 Trimer Protein is expressed in HEK293 cells with a His tag, Avi tag and Flag tag at the N-terminus. It contains amino acid residues Met113-Leu261 trimer design (accession: P29965(Human) / G7Q1T4(Cynomolgus) / P63304(Rhesus macaque)).

Product Details

Molecular Aliases
CD40L; CD40LG; CD154; TNFSF5; TNFSF5IMD3; CD40LIGM; gp39; HIGM1; T-BAM; TRAP; IGM; IMD3; CD40 Ligand
Protein Length
Met113-Leu261
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 54.51 kDa. Due to glycosylation, the protein migrates to 55-70 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
CD40-HB005 Bis-Tris-PAGE-white result

Biotinylated Human/Cynomolgus/Rhesus macaque CD40 Ligand Trimer on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
CD40-HB005 SEC-HPLC result

The purity of Biotinylated Human/Cynomolgus/Rhesus macaque CD40 Ligand Trimer is greater than 95% as determined by SEC-HPLC.

ELISA
CD40-HB005 ELISA result

Immobilized Biotinylated Human/Cynomolgus/Rhesus macaque CD40 Ligand Trimer, His Tag at 2μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Human CD40, hFc Tag with the EC50 of 56.2ng/ml determined by ELISA.

Background

CD40 ligand or CD40L, also called CD154, is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 (protein) on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In total CD40L has three binding partners: CD40, α5β1 integrin and αIIbβ3. CD154 acts as a costimulatory molecule and is particularly important on a subset of T cells called T follicular helper cells.

References

  1. Bjorck P, Filbert E, Zhang Y, et al. The CD40 agonistic monoclonal antibody APX005M has potent immune stimulatory capabilities[J]. Journal for Immunotherapy of Cancer, 2015, 3(S2): P198.

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