| Catalog# | 
            CH50 | 
        
        
            | Source | 
            E.coli | 
        
        
            | Description | 
            Recombinant Human IL22 is produced with our E. coli expression system. The target protein is expressed with sequence (Ala34-Ile179) of Human IL22 fused with a polyhistidine tag at the N-terminus. | 
        
        
            | Names | 
            Interleukin-22,IL-22,Cytokine Zcyto18,IL-10-related T-cell-derived-inducible factor,IL-TIF, IL22,ILTIF, ZCYTO18 | 
        
        
            | Accession # | 
            Q9GZX6 | 
        
        
            | Formulation | 
            Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4. | 
        
        
            | Shipping | 
            The product is shipped at ambient temperature. | 
        
        
            | Reconstitution | 
            Always centrifuge tubes before opening. Do not mix by vortex or pipetting. 
            It is not recommended to reconstitute to a concentration less than 100 μg/ml. 
            Dissolve the lyophilized protein in 1X PBS. 
            Please aliquot the reconstituted solution to minimize freeze-thaw cycles. | 
        
        
            | Storage | 
            Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. 
            Reconstituted protein solution can be stored at 4-7°C for 2-7 days. 
            Aliquots of reconstituted samples are stable at < -20°C for 3 months. | 
        
        
            | Purity | 
            Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE. | 
        
        
            | Endotoxin | 
            Less than 0.1 ng/µg (1 IEU/µg). | 
        
        
            | Amino Acid Sequence | 
            
             MAPISSHCRLDKSNFQQPYITNRTFMLAKEASLADNNTDVRLIGEKLFHGVSMSERCYLMKQVLN FTLEEVLFPQSDRFQPYMQEVVPFLARLSNRLSTCHIEGDDLHIQRNVQKLKDTVKKLGESGEIK AIGELDLLFMSLRNACI* 
             | 
        
        
            | Background | 
            Interleukin-22(IL-22) is a member of a group of the IL-10 family, a class of potent mediators of cellular inflammatory responses. IL-22 is produced by activated DC and T cells. IL-22 and IL-10 receptor chains play a role in cellular targeting and signal transduction. It can initiate and regulate innate immune responses against bacterial pathogens especially in epithelial cells such as respiratory and gut epithelial cells. IL-22 along with IL-17 likely plays a role in the coordinated response of both adaptive and innate immune systems. IL-22 also promotes hepatocyte survival in the liver and epithelial cells in the lung and gut similar to IL-10. Biological activity of IL-22 is initiated by binding to a cell-surface complex consisting of IL-22R1 and IL-10R2 receptor chains. IL-22 biological activity is further regulated by interactions with a soluble binding protein, IL-22BP. IL-22BP and an extracellular region of IL-22R1 share sequence similarity. In some cases, the pro-inflammatory versus tissue-protective functions of IL-22 are regulated by cytokine IL-17A. |