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Recombinant Human IL22
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|Alternative Names||IL-22, Cytokine Zcyto18, IL-10-related T-cell-derived-inducible factor, IL-TIF, ZCYTO18
Recombinant Human Interleukin-22 (IL22)
|Description||Originally identified as a gene induced by IL-9 in mouse T cells and mast cells, IL-22 is a member of the IL-10 family of cytokines. IL-22 inhibits IL-4 production by Th2 cells, and induces acute phase reactants in the pancreas and liver. The IL-22 receptor complex consists of two receptor subunits, IL-22R and IL-10R-beta that belong to the class II cytokine receptor family. Recombinant human IL-22 is a non-disulfide-linked homodimeric protein.|
|Molecular Weight||17.0 kDa|
|Endotoxin Level||<1.0 EU/μg of recombinant protein as determined by the LAL method.|
|Purity||>95% as determined by SDS-PAGE|
|Bioactivity||Activity was determined by the ability to inhibit growth of human A549 cancer cells at concentrations ranging between 50-100 ng/mL.|
|Formulation||Recombinant Interleukin-22 was lyophilized from 0.2 μm filtered concentrated (1.0 mg/mL) solution in 500 mM NaCl, 20 mM Tris, pH 8.0.|
|Reconstitution||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.|
|Storage||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.|
|Usage||For research use only. Not for diagnostic or therapeutic use.|
· Endotoxin is generally measured in Endotoxin Units per milliliter (EU/mL).
· For recombinant proteins: EU is reported per microgram of protein.
· One EU = 0.1-0.2 ng endotoxin/µg of protein.
· At abm, we do the LAL chromogenic assays that can detect down to 0.01 EU/ml.