Recombinant Human IL-22 Protein Best Seller
R&D Systems, part of Bio-Techne | Catalog # 782-IL
E. coli
Key Product Details
Product Specifications
Source
E. coli-derived human IL-22 protein
Ala34-Ile179, with an N-terminal Met
Ala34-Ile179, with an N-terminal Met
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Met
Predicted Molecular Mass
16.5 kDa
Activity
Measured by its ability to induce IL-10 secretion in COLO 205 human colorectal adenocarcinoma cells. Nagalakshmi, M.L. et al. (2004) International Immunopharmacology 4:679.
The ED50 for this effect is 60-300 pg/mL.
The ED50 for this effect is 60-300 pg/mL.
Scientific Data Images for Recombinant Human IL-22 Protein
Recombinant Human IL-22 Protein Bioactivity
Recombinant Human IL-22 (Catalog # 782-IL) induces IL-10 secretion in the COLO 205 human colorectal adenocarcinoma cell line. The ED50 for this effect is 60-300 pg/mL.
Recombinant Human IL-22 Protein SDS-PAGE
1 µg/lane of Recombinant Human IL‑22 was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 14 kDa.Formulation, Preparation and Storage
Carrier Free
What does CF mean?CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
Carrier: 782-IL
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Carrier Free: 782-IL/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Background: IL-22
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. Human IL-22 cDNA encodes a 179 amino acid (aa) residue protein with a putative 33 aa signal peptide that is cleaved to generate a 147 aa mature protein that shares approximately 79% and 22% aa sequence identity with mouse IL-22 and human IL-10, respectively. The human IL-22 gene is localized to chromosome 12q15. Although it exists as a single copy gene in human and in many mouse strains, the mouse IL-22 gene is duplicated in some mouse strains including C57B1/6, FVB and 129. The two mouse genes designated IL-TIF alpha and IL-TIF beta, share greater than 98% sequence homology in their coding region. 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 T cells upon anti-CD3 stimulation in humans. 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-10R beta (previously known as CRF2-4), belonging to the class II cytokine receptor family.
References
- Dumoutier, L. et al. (2000) J. Immunol. 164:1814.
- Xie, M-H. et al. (2000) J. Biol. Chem. 275:31335.
- Dumoutier, L. et al. (2000) PNAS 97:10144.
- Kotenko, S.V. et al. (2001) J. Biol. Chem. 276:2725.
Long Name
Interleukin 22
Alternate Names
IL-TIF, IL22
Gene Symbol
IL22
UniProt
Additional IL-22 Products
Product Documents for Recombinant Human IL-22 Protein
Product Specific Notices for Recombinant Human IL-22 Protein
For research use only
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