Recombinant Human TNFSF15

TNFSF15 is a type II transmembrane protein which is predominantly expressed in endothelial cells. It has a single transmembrane domain, a small cytoplasmic domain and an extracellular C-terminus. Its expression is stimulated by TNFA and IL1A. TNFSF15 acts as the ligand for the receptor protein TNFRSF25 which is primarily found in activated T cells. It also has an affinity to the decoy receptor protein TNFRSF6B. Binding of this cytokine to its receptor can activate the transcription factor NF-Kappa-B and MAP Kinases. It has been found that TNFSF15 can also induce apoptosis by acting as an autocrine factor and inhibit endothelial cell proliferation. Recombinant Human TNFSF15 herein refers to the secreted form of the protein.

Product Specifications

CAS Number

9000-83-3

Gene Name

TNFSF15

Gene Aliases

TL1, VEGI

Organism

Human

Source

E. coli

Concentration

<1.0 EU/μg of recombinant protein as determined by the LAL method

Purity

>95% as determined by SDS-PAGE

Solubility

A quick spin of the vial followed by reconstitution in sterile distilled water to a concentration not less than 0.1 mg/mL is recommended. This solution can then be diluted into other buffers.

Function

The ED(50) was determined by the dose-dependent proliferation of Jurkat cells and was found to be <0.5ng/mL.

Shipping Conditions

Ambient Temperature

Storage Conditions

The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.