| Description : |
IL-22 is belonging to IL-10 family of regulatory cytokines which includes IL-10, IL-19, IL-20, IL-22, IL-24 and IL-26. Members of this family share partial homology in their amino acid sequences, but they are dissimilar in their biological functions. Produced by T lymphocytes and dendritic cells, IL-10 contributes to the inflammatory response in vivo. IL-22 signals through CRF2-4 and IL-22. It along with IL-17 is rapidly produced by splenic LTi-like cells and can be also produced by Th17 cells and likely plays a role in the coordinated response of both adaptive and innate immune systems. |
| Source : |
E. coli |
| Species : |
Human |
| Form : |
Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 5.0. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by inducing IL-10 secretion of human COLO 205 cells is less than 0.3 ng/ml, corresponding to a specific activity of > 3.3 × 10^6 IU/mg. |
| Molecular Mass : |
Approximately 33.6 kDa, non-disulfide-linked homodimeric protein containing of two 147 amino acid polypeptide chains. |
| AA Sequence : |
MAPISSHCRLDKSNFQQPYITNRTF MLAKEASLADNNTDVRLIGEKLFHG VSMSERCYLMKQVLNFTLEEVLFPQ SDRFQPYMQEVVPFLARLSNRLSTC HIEGDDLHIQRNVQKLKDTVKKLGE SGEIKAIGELDLLFMSLRNACI |
| Endotoxin : |
Less than 1 EU/µg of rHuIL-22 as determined by LAL method. |
| Purity : |
> 97 % by SDS-PAGE and HPLC analyses. |
| Storage : |
This lyophilized preparation is stable at 2-8 centigrade, but should be kept at -20 centigrade for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 centigrade. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 centigrade to -70 centigrade. Avoid repeated freeze/thaw cycles. |
| Reconstitution : |
Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 centigrade. Further dilutions should be made in appropriate buffered solutions. |
| Quality Statement : |
Our GMP proteins are produced according to relevant sections of the following documents: WHO TRS, No. 822, 1992 Annex 1, Good Manufacturing Practices for Biological Products; USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and USP Chapter 92, Growth Factors and Cytokines Used in Cell Therapy Manufacturing. |
| Shipping : |
The product is shipped at ambient temperature. Upon receipt, store it immediately at the recommended temperature. |
