Recombinant Human IL-22BP His-tag Protein

R&D Systems, part of Bio-Techne | Catalog # 8498-BP

R&D Systems, part of Bio-Techne
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Carrier Free
8498-BP-025/CF
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With Carrier
8498-BP-025
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Key Product Details

Source

CHO

Accession #

NP_851826

Conjugate

Unconjugated

Applications

Bioactivity

View all IL-22BP Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human IL-22BP protein
Thr22-Pro231, with a C-terminal 6-His tag

Purity

>95%, by SDS-PAGE with silver staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Thr22

Predicted Molecular Mass

26 kDa

SDS-PAGE

46-53 kDa, reducing conditions

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 typically 1-5 ng/mL in the presence of 1 ng/mL of Recombinant Human IL-22 (Catalog # 782-IL).

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: 8498-BP
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 250 μg/mL in 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.
Carrier Free: 8498-BP/CF
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 250 μg/mL in 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.

Background: IL-22BP

Interleukin 22 binding protein (IL-22BP), also known as CRF2-10, CRF2-X, and IL-22 RA2, is a 35-45 kDa secreted glycoprotein in the type II cytokine receptor family (CRF). IL-22 signals through a receptor complex consisting of IL-22 R and IL-10 R beta. IL-10 R beta is also a component of the receptor complexes for IL-10, IL-26, IL-28, and IL-29 (1, 2). IL-22BP blocks the interaction of IL-22 with IL-22 R, preventing IL-22 induced production of reactive oxygen species, IL-6, IL-10, and TNF-a (3-8). In vivo, it regulates the proinflammatory effects of IL-22 (e.g. neutrophil infiltration) but not of IL-10 (7). Mouse IL-22BP can neutralize the bioactivity of both mouse and human IL-22 (6). IL-22BP is produced by dendritic cells (DC), epithelial cells, activated B cells, and activated monocytes (3, 6, 9, 10). It is constitutively expressed by DC but is down-regulated during local inflammation and in response to tissue damage (11-13). IL-22BP is critical for limiting IL-22 induced epithelial cell proliferation during wound healing, and its deficiency can enable uncontrolled proliferation and enhance tumor development (12). Mature human IL-22BP contains two Fibronectin type III domains (3, 4). Alternative splicing generates additional isoforms that contain a 32 amino acid (aa) insertion in the first Fn-III domain and may also be truncated within the second Fn-III domain (3, 4, 14). Human IL-22BP without the 32 aa insertion shares 68% and 73% amino acid (aa) sequence identity with mouse and rat IL-22BP, respectively.

References

  1. Lim, C. and R. Savan (2014) Cytokine Growth Factor Rev. 25:257.
  2. Mizoguchi, A. (2012) Inflamm. Bowel Dis. 18:1777.
  3. Xu, W. et al. (2001) Proc. Natl. Acad. Sci. USA 98:9511.
  4. Kotenko, S.V. et al. (2001) J. Immunol. 166:7096.
  5. Li, J. et al. (2004) Int. Immunopharmacol. 4:693.
  6. Wei, C.-C. et al. (2003) Genes Immun. 4:204.
  7. Weber, G.F. et al. (2007) Infect. Immun. 75:1690.
  8. Whittington, H.A. et al. (2004) Am. J. Respir. Cell Mol. Biol. 31:220.
  9. Lecart, S. et al. (2002) Int. Immunol. 14:1351.
  10. Nagalakshmi, M.L. et al. (2004) Int. Immunopharmacol. 4:577.
  11. Wolk, K. et al. (2007) J. Immunol. 178:5973.
  12. Huber, S. et al. (2012) Nature 491:259.
  13. Martin, J.C.J. et al. (2014) Mucosal Immunol. 7:101.
  14. Dumoutier, L. et al. (2001) J. Immunol. 166:7090.

Long Name

Interleukin 22 Binding Protein

Alternate Names

CRF2-10, CRF2-X, IL-22 RA2, IL22BP, IL22RA2

Entrez Gene IDs

116379 (Human); 237310 (Mouse)

Gene Symbol

IL22RA2

UniProt

NP_851826

Additional IL-22BP Products

Product Documents for Recombinant Human IL-22BP His-tag Protein

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Download SDS 8498-BP (with carrier)
Download SDS 8498-BP/CF (carrier free)

Product Specific Notices for Recombinant Human IL-22BP His-tag Protein

For research use only

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