IL-27 is a cytokine with pro- and anti-inflammatory properties, that can regulate T helper cell development, suppress T cell proliferation, stimulate cytotoxic T cell activity, induce isotype switching in B cells, and that has diverse effects on innate immune cells. Among its target cells are CD4 T helper cells which can differentiate in type 1 effector cells (TH1), type 2 effector cells (TH2) and IL-17 producing helper T cells (TH17). It drives rapid clonal expansion of naive but not memory CD4 T cells. It also strongly synergizes with IL-12 to trigger interferon-gamma/IFN-gamma production of naive CD4 T cells, binds to the cytokine receptor WSX-1/TCCR. Another important role of IL-27 is its antitumor activity as well as its antiangiogenic activity with activation of production of antiangiogenic chemokines.
<1.0 EU/μg of recombinant protein as determined by the LAL method.
Biological Activity Comment
The activity was determined by its ability to bind recombinant human IL-27RA with a linear range of 60-1000 ng/mL in functional ELISA.
Weight
50.0 kDa
Description
A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
Format
Lyophilized PowderRecombinant Human Interleukin-27 was lyophilized from a 0.2 μm filtered PBS solution pH 7.4.
Purity
>95% as determined by SDS-PAGE
Storage
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.