Alternative name: Interleukin-33, NF-HEV, IL-1F11. Purity: ≥95% (SDS-PAGE). MW: ~30kD. Formulation: Liquid. In 100mM sodium phosphate, 500mM sodium chloride, 25mM imidazole, 10% glycerol. Source: Produced in E. coli. The mature domain of recombinant human IL-33 (aa 1-270) is fused at the C-terminus to a His-tag. Long Term Storage: -80°C. Use/Stability: Working aliquots are stable for up to 3 months when stored at -80°C. Handling: For maximum product recovery after thawing, centrifuge the vial before opening the cap. Avoid freeze/thaw cycles. After opening, prepare aliquots and store at -80°C. Applications: WB .