Recombinant Rat IL-10 (Cys167Tyr) Protein
R&D Systems, part of Bio-Techne | Catalog # 547-RL
Key Product Details
Product Specifications
Source
E. coli-derived rat IL-10 protein
Ser19-Asn178 (Cys167Tyr)
Ser19-Asn178 (Cys167Tyr)
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Ser19
Predicted Molecular Mass
18.7 kDa (monomer)
Activity
Measured in a cell proliferation assay using MC/9-2 mouse mast cells. Thompson-Snipes, L. et al. (1991) J. Exp. Med. 173:507.
The ED50 for this effect is 0.3-1 ng/mL.
The ED50 for this effect is 0.3-1 ng/mL.
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: 547-RL
| Formulation | Lyophilized from a 0.2 μm filtered solution in NaH2PO4 and NaCl 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: 547-RL/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in NaH2PO4 and NaCl. |
| 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-10
Interleukin 10, also known as cytokine synthesis inhibitory factor (CSIF), is the charter member of the IL-10 family of alpha-helical cytokines that also includes IL-19, IL-20, IL-22, and IL-24 (1, 2). IL-10 is secreted by many activated hematopoietic cell types as well as hepatic stellate cells, keratinocytes, and placental cytotrophoblasts (2 - 5). Mature rat IL-10 shares 85% amino acid sequence identity with mouse and 71% - 79% amino acid sequence identity with bovine, canine, equine, feline, human, ovine, and porcine IL-10. Whereas human IL-10 is active on mouse cells, mouse IL-10 does not act on human cells (6, 7). IL-10 is a 178 amino acid molecule that contains two intrachain disulfide bridges and is expressed as a 36 kDa noncovalently associated homodimer (8 - 10). The IL-10 dimer binds to two IL-10 R alpha/IL-10R1 chains, resulting in recruitment of two IL-10 R beta/IL-10R2 chains and activation of a signaling cascade involving JAK1, TYK2, and STAT3 (11). IL-10R beta does not bind IL-10 by itself but is required for signal transduction (1). IL-10R beta also associates with IL-20 R alpha, IL-22 R alpha, or IL-28 R alpha to form the receptor complexes for IL-22, IL-26, IL-28, and IL-29 (12 - 14). IL-10 is a critical molecule in the control of viral infections and allergic and autoimmune inflammation (15 - 17). It promotes phagocytic uptake and Th2 responses but suppresses antigen presentation and Th1 proinflammatory responses (2).
References
- Pestka, S. et al. (2004) Annu. Rev. Immunol. 22:929.
- O’Garra, A. and P. Vieira (2007) Nat. Rev. Immunol. 7:425.
- Mathurin, P. et al. (2002) Am. J. Physiol. Gastrointest. Liver Physiol. 282:G981.
- Grewe, M. et al. (1995) J. Invest. Dermatol. 104:3.
- Szony, B.J. et al. (1999) Mol. Hum. Reprod. 5:1059.
- Vieira, P. et al. (1991) Proc. Natl. Acad. Sci. 88:1172.
- Hsu, D.-H. et al. (1990) Science 250:830.
- Goodman, R. et al. (1992) Biochem. Biophys. Res. Commun. 189:1.
- Windsor, W.T. et al. (1993) Biochemistry 32:8807.
- Syto, R. et al. (1998) Biochemistry 37:16943.
- Kotenko, S.V. et al. (1997) EMBO J. 16:5894.
- Kotenko, S.V. et al. (2000) J. Biol. Chem. 276:2725.
- Hor, S. et al. (2004) J. Biol. Chem. 279:33343.
- Sheppard, P. et al. (2003) Nat. Immunol. 4:63.
- Fitzgerald, D.C. et al. (2007) Nat. Immunol. 8:1372.
- Wu, K. et al. (2007) Cell. Mol. Immunol. 4:269.
- Blackburn, S.D. and E.J. Wherry (2007) Trends Microbiol. 15:143.
Long Name
Interleukin 10
Alternate Names
CSIF, GVHDS, IL10, IL10A, TGIF
Entrez Gene IDs
Gene Symbol
IL10
UniProt
Additional IL-10 Products
Product Documents for Recombinant Rat IL-10 (Cys167Tyr) Protein
Product Specific Notices for Recombinant Rat IL-10 (Cys167Tyr) Protein
For research use only
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