Recombinant Human CD40 Ligand (Animal-Free)

Code Description Price Qty
GFH25AF-10 Human CD40 Ligand (Animal-Free), 10 μg $72.00
GFH25AF-50 Human CD40 Ligand (Animal-Free), 50 μg $185.00
GFH25AF-100 Human CD40 Ligand (Animal-Free), 100 μg $330.00
GFH25AF-1000 Human CD40 Ligand (Animal-Free), 1 mg $1,483.00
Non-reducing (-) and reducing (+) conditions in a 4 - 20% Tris-Glycine gel stained with Coomassie Blue. 1 μg of protein was loaded in each lane. Human CD40 Ligand has a predicted Mw of 16.3 kDa.

Achieve Purchasing Synergy

Request a quote at for 2 or more vials of any Growth Factor to receive a discount. Discounts range from 5 to 20% according to the size of your order.

PODS® Growth Factors

This growth factor is also available as PODS® for sustained release, see here.


This product is produced with no animal derived raw products. All processing and handling employs animal free equipment and animal free protocols.


CD40 Ligand is a membrane glycoprotein and differentiation antigen that is expressed on the surface of T cells, monocytes, basophils, eosinophils, platelets, dendritic cells, and endothelial cells. CD40 Ligand binds and activates the CD40 receptor on antigen-presenting cells. CD40 Ligand stimulates B cell proliferation, immunoglobulin class switching, and antibody secretion. CD40 Ligand also induces cytokine production and tumoricidal activity in peripheral blood monocytes. CD40 Ligand is a co-stimulator of activated T cell proliferation and inflammatory protein production.

Activity Assay

Human CD40 Ligand is fully biologically active when compared to standard. The activity is determined by the activity of HEK-blue™ CD40 Ligand and it is typically less than 50 ng/ml. This corresponds to an expected specific activity of 2.0 x 104 units/mg.

AA Sequence


Alternative Names

CD40 antigen ligand, CD40L, CD40-L, TNFSF5, TRAP, CD154, CD154 antigen, gp39, T-cell antigen Gp39, T-BAM, IGM, TRAP, HIGM1, IMD3, tumor necrosis factor ligand superfamily member 5, T-B cell-activating molecule, TNF-related activation protein
Product Details
Length 149 aa
Molecular Weight 16.3 kDa
Structure Monomer
Source E. coli
Accession Number P29965
Purity ≥95% determined by reducing and non-reducing SDS-PAGE
Endotoxin Level ≤1.00 EU/μg as measured by kinetic LAL
Formulation Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 10 mM sodium phosphate, pH 7.5
Reconstitution Centrifuge vial before opening. When reconstituting the product, gently pipet and wash down the sides of the vial to ensure full recovery of the protein into solution. It is recommended to reconstitute the lyophilized product with sterile water at 0.1 mg/ml, which can be further diluted into other aqueous solutions.
Stability and Storage

12 months from date of receipt when stored at -20°C to -80°C as supplied. 1 month when stored at 4°C after reconstituting as directed. 3 months when stored at -20°C to -80°C after reconstituting as directed.