Recombinant Rat IL-22
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. Recombinant rat Interleukin-22 contains 146 amino acids and it has approximately 79 % and 92 % amino acid sequence identity with human and murine IL-22.
Reference:
1. Zeng G, Chen CY, Huang D, et al. 2011. J Immunol, 187: 190-9.
2. Cocco CandAiroldi I. 2012. Immunotherapy, 4: 668.
3. Honda K. 2012. Immunity, 37: 952-4.
4. Gurney AL. 2004. Int Immunopharmacol, 4: 669-77.
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Gene ID |
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Accession # |
Q198B4 |
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Alternate Names |
Cytokine Zcyto 18, TIF |
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Source |
Escherichia coli. |
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M.Wt |
Approximately16.6 kDa, a single non-glycosylated polypeptide chain containing 146 amino acids. |
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AA Sequence |
LPINSQCKLE AANFQQPYIV NRTFMLAKEA SLADNNTDVR LIGEELFRGV KAKDQCYLMK QVLNFTLEDV LLPQSDRFQP YMQEVVPFLT KLSIHLSPCH ISGDDQNIQK NVRQLKETVQ KLGESGEIKA IGELDLLFMS LRNACV |
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Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Stability & Storage |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. - 12 months from date of receipt, -20 to -70 °C as supplied. - 1 month, 2 to 8 °C under sterile conditions after reconstitution. - 3 months, -20 to -70 °C under sterile conditions after reconstitution. |
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Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4. |
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Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. 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 °C. Further dilutions should be made in appropriate buffered solutions. |
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Biological 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 0.5 ng/ml, corresponding to a specific activity of > 2.0 × 106 IU/mg. |
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Shipping Condition |
Gel pack. |
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Handling |
Centrifuge the vial prior to opening. |
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Usage |
For Research Use Only! Not to be used in humans. |
Quality Control & DataSheet
- View current batch:
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Purity > 97 % by SDS-PAGE and HPLC analyses.
- Datasheet
Endotoxin: Less than 1 EU/μg of rRtIL-22 as determined by LAL method.