Human IL-22 Recombinant Protein is supplied as lyophilized material that is very stable at -20°C. It is recommended to reconstitute with sterile water at a concentration of 0.1 mg/mL which can be further diluted in aqueous solutions as needed. Addition of a carrier protein (0.1% HSA or BSA) is recommended for long-term storage.
Once in solution, store at 4°C and use within 1 month, or store at -20ºC to -80ºC and use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles if storing reconstituted material at -20ºC to -80ºC.
|Purity||A greater than or equal to 95% purity was determined by SDS-PAGE.|
|Endotoxin||Endotoxin levels are less than or equal to 1 EU / 1 μg hIL-22.|
|Activity||The bioactivity of recombinant hIL-22 was determined by measuring the production of IL-10 from Colo 205 cells. The ED50 of each lot is less than or equal to 0.3 ng/mL.|
Recombinant human IL-22 was expressed in E. coli and is supplied in a lyophilized form.
Interleukin-22 (IL-22), a member of the IL-10 family (1,2), is expressed by Th17 CD4+ T cells, activated T cells, Th1 cells, and NK cells (3). IL-22 induces proinflammatory responses, drives production of antimicrobial peptides, and is involved in tissue repair and wound healing responses (1). The IL-22 receptor is a heterodimer of IL-22R1 and IL-10R2 (4). Expression of IL-22R is restricted to tissue-resident cells, particularly those of epithelial origin, whereas the IL-10R2 chain is expressed in many more cell types. IL-22 induces phosphorylation of Jak1 and Tyk2, leading to activation of Stat3 and, to a lesser extent, Stat1 and Stat5 (1). IL-22 responses can involve activation of the MEK-ERK-RSK, JNK-SAPK, and p38 pathways (1). Elevated levels of IL-22 have been associated with Crohn's disease and rheumatoid arthritis. IL-22 plays an essential role in host response to the pulmonary pathogen Klebsiella pneumoniae (5).
UniProt ID: Q9GZX6
Entrez-Gene Id: 50616
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