Recombinant Human IL-22 R alpha 1 Protein, CF

Catalog # Availability Size / Price Qty
2770-LR-050
R&D Systems Recombinant Proteins and Enzymes
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Recombinant Human IL-22 R alpha 1 Protein, CF Summary

Product Specifications

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.
Activity
Measured by its ability to inhibit IL-22-induced IL-10 secretion by COLO 205 human colorectal adenocarcinoma cells. The ED50 for this effect is 1-4 µg/mL in the presence of 1 ng/mL of recombinant human IL-22.
Source
Mouse myeloma cell line, NS0-derived human IL-22 R alpha 1 protein
Pro18-Thr228, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Pro18
Predicted Molecular Mass
24.9 kDa
SDS-PAGE
34-38 kDa, reducing conditions

Product Datasheets

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2770-LR

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.

2770-LR

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.
  • 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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Background: IL-22 R alpha 1

IL-22 receptor, also known as IL-22 R alpha 1 and CRF2-9, is an approximately 65 kDa transmembrane glycoprotein in the type II cytokine receptor family (CRF).
IL-22 R alpha 1 contains a 211 amino acid (aa) extracellular domain (ECD) with two fibronectin type III repeats, and a 323 aa cytoplasmic domain. IL-22 R alpha 1 associates with either IL-10 R beta or IL-20 R beta to form receptor complexes with distinct ligand selectivities. IL-10 R beta is a shared subunit of the IL-10, -22, -26, -28, and -29 receptors, while IL-20 R beta is a shared subunit of the IL-19, -20, -22R and -24 receptors (1). IL-22 R alpha 1/IL-10 R beta  is an IL-22 responsive receptor (2, 3), and IL-22 R alpha 1/IL-20 R beta is an IL-20 or IL-24 responsive receptor (4, 5). IL-22 R alpha 1 contains cytoplasmic motifs for interactions with signal transduction molecules, but formation of ternary complexes with IL-10 R beta or IL-20 R beta and the respective ligands is required for signal transduction (2, 6). IL-22BP functions as a competitive antagonist by binding
IL-22 and preventing its association with IL-22 R alpha 1 (7, 9). Even though it is a receptor for interleukins, IL-22 R alpha 1 is not expressed on hematopoietic cells (6, 10, 11). Instead, IL-22 R alpha 1 expression is restricted to epithelial and stromal cells (6, 10 - 13). IL-22 R alpha 1 signaling promotes innate immune responses and wound healing at sites of infection and inflammation. This includes upregulation of antimicrobial, acute phase, proinflammatory, and extracellular matrix proteins as well as proteases (3, 11, 13, 14). IL-22 R alpha 1 signaling also promotes downregulation of proteins involved in keratinocyte differentiation (3, 14). Within the ECD, human IL-22 R alpha 1 shares 78%, 76%, and 83% aa sequence identity with mouse, rat, and canine IL-22 R, respectively. It shares 22% - 25% aa sequence identity with the ECDs of other class II receptors IL-10 R, IL-20 R, and IL-28 R.

References
  1. Langer, J.A. et al. (2004) Cytokine Growth Factor Rev. 15:33.
  2. Xie, M.-H. et al. (2000) J. Biol. Chem. 275:31335.
  3. Boniface, K. et al. (2005) J. Immunol. 174:3695.
  4. Dumoutier, L. et al. (2001) J. Immunol. 167:3545.
  5. Wang, M. et al. (2002) J. Biol. Chem. 277:7341.
  6. Kotenko, S.V. et al. (2001) J. Biol. Chem. 276:2725.
  7. Li, J. et al. (2004) Int. Immunopharmacol. 4:693.
  8. Logsdon, N.J. et al. (2002) J. Interferon Cytokine Res. 22:1099.
  9. Kotenko, S.V. et al. (2001) J. Immunol. 166:7096.
  10. Nagalakshmi, M.L. et al. (2004) Int. Immunopharmacol. 4:577.
  11. Nagalakshmi, M.L. et al. (2004) Int. Immunopharmacol. 4:679.
  12. Aggarwal, S. et al. (2001) J. Interferon Cytokine Res. 21:1047.
  13. Wolk, K. et al. (2004) Immunity 21:241.
  14. Wolk, K. et al. (2006) Eur. J. Immunol. 36:1309.
Long Name
Interleukin 22 Receptor
Entrez Gene IDs
58985 (Human); 230828 (Mouse)
Alternate Names
CRF2-9; CRF2-9interleukin 22 receptor; Cytokine receptor class-II member 9; Cytokine receptor family 2 member 9; IL-22 R alpha 1; IL-22 receptor subunit alpha-1; IL22R alpha 1; IL22R; IL22R1; IL22RA1; IL-22Ra1; IL-22R-alpha-1; IL-TIF-R1; interleukin 22 receptor, alpha 1; interleukin-22 receptor subunit alpha-1; zcytoR11

Citation for Recombinant Human IL-22 R alpha 1 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Characterization of linear mimetic peptides of Interleukin-22 from dissection of protein interfaces
    Authors: S La Manna, PL Scognamigl, C Di Natale, M Leone, FA Mercurio, AM Malfitano, F Cianfarani, S Madonna, S Caravella, C Albanesi, E Novellino, D Marasco
    Biochimie, 2017-05-04;0(0):.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Surface Plasmon Resonance

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Recombinant Human IL-22 R alpha 1 Protein, CF
By Anonymous on 06/09/2020
Application: ELISA standard

We used this protein in an in-house ELISA along with pAb (AF2770) and mAb (2770) to quantify IL-22R alpha1 in human serum and plasma. This combination could not detect IL-22R alpha1 in our samples but generated a good standard curve.