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| Catalogue Number | CYT-701 | |||
| Synonyms | IL-TIF, TIFa, IL-10-related T-cell-derived-inducible factor, IL-22, ILTIF, IL-D110, zcyto18, MGC79382, MGC79384, TIFIL-23. | |||
| Introduction | Interleukin-22 （IL-22）, also known as IL-10-related T cell-derived inducible factor （IL-TIF） was initially identified as a gene induced by IL-9 in mouse T cells and mast cells. Mouse IL-22 cDNA encodes a 179 amino acid residue protein with a putative 33 amino acids signal peptide that is cleaved to generate a 147 aa mature protein that shares approximay 79% and 22% aa sequence identity with human IL-22 and IL-10, respectively. IL-22 has been shown to activate STAT-1 and STAT-3 in several hepatoma cell lines and upregulate the production of acute phase proteins. IL-22 is produced by normal mouse T cells upon Con A activation. Mouse IL-22 expression is also induced in various organs upon lipopolysaccharide injection, suggesting that IL-22 may be involved in inflammatory responses. The functional IL-22 receptor complex consists of two receptor subunits, IL-22R （previously an orphan receptor named CRF2-9） and IL-10Rβ （previously known as CRF2-4）, belonging to the class II cytokine recep | |||
| Description | Pegylated Interleukin-22 Mouse Recombinant produced in E.Coli is a single, non-glycosylated homodimeric polypeptide chain containing 147 amino acids and an aditional Ala amino acid at N-terminus having a molecular mass of 36 kDa as determioned by mass spectometry. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as a 50 kDa protein and in gel-filtration on Superdex 200 as over 200 kDa protein. The Murine IL-22 is Mono-pegylated （with 20 kDa PEG） purified by proprietary chromatographic techniques. | |||
| Source | Escherichia Coli. | |||
| Physical Appearance | Sterile Filtered White lyophilized （freeze-dried） powder. | |||
| Formulation | Lyophilized from a concentrated solution at 0.65mg/ml containing 0.003mM NaHCO3. | |||
| Solubility | It is recommended to reconstitute the lyophilized pegylated mouse Interleukin -22 in sterile 0.4% NaHCO3 adjusted to pH 8-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | |||
| Stability | Lyophilized pegylated murine IL22 although stable at room temperature for several days, should be stored desiccated below -20C. Upon reconstitution at 0.1mg/ml pegylated mouse IL22 and up to 2mg/ml, filter and sterilized, the protein can be stored at 4 degrees Celsius for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein （0.1% HSA or BSA） is suggested. Please prevent freeze-thaw cycles. | |||
| Purity | Greater than 98.0% as determined by: （a） Analysis by Gel-Filtration. （b） Analysis by SDS-PAGE. | |||
| Biological Activity | The ED50 as determined by STAT3 phosphorylation assay in HepG cells. The activity in vitro was found to be ~ 10% compared to the non-pegylated mouse IL22. | |||
| Usage | ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals | |||
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