TKLLSYTKQLFRHGPF with polyhistidine tag at the C-terminusSource:
Escherichia coliEndotoxin Test:
<0.1 EU per 1 μg of the protein by the LAL method.
Measure by its ability to induce TF-1 cells proliferation. The ED50 for this effect is <4 ng/mL. The specific activity of recombinant mouse IL-13 is > 2.5 x 105 IU/mg.
>95% as determined by SDS-PAGE. Ni-NTA chromatography
The protein was lyophilized from a solution containing 1X PBS, pH 7.4.
It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 100 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Lyophilized protein should be stored at -20°C. Upon reconstitution, protein aliquots should be stored at -20°C or -80°C.
Please use within two weeks after protein reconstitution.