Recombinant Rat IL-22 Protein

Carrier Free

Catalog # Availability Size / Price Qty
1316-RL-010/CF

With Carrier

Catalog # Availability Size / Price Qty
1316-RL-010

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Citations (2)
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Recombinant Rat IL-22 Protein Summary

Product Specifications

Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.1 EU per 1 μg of the protein by the LAL method.
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 150-750 pg/mL.
Source
E. coli-derived rat IL-22 protein
Leu27-Val172, with an N-terminal Met
Accession #
N-terminal Sequence
Analysis
Met
Predicted Molecular Mass
16.7 kDa

Product Datasheets

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1316-RL (with carrier)

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1316-RL/CF (carrier free)

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.

1316-RL

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.
  • 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.

1316-RL/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.
  • 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.
Reconstitution Calculator

Reconstitution Calculator

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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. It belongs to the IL-10-related cytokine family that consists of six members (IL-10, IL-19, IL-20, IL-22, IL-24/MDA-7, and IL-26/AK155). These proteins share structural homology and some degree of amino acid sequence homology to IL-10. Receptors for these proteins are members of the class II cytokine receptor family (1). The rat IL-22 coding region corresponding to amino acids 48 - 179 was deduced from a rat genomic clone (Genbank accession numaber AC111483). The N-terminal portion was cloned from rat adipocyte first strands using degenerate forward primers based on the human and mouse IL-22 amino acid sequences in two independent PCR reactions (2). Rat IL-22 cDNA predicts a 179 amino acid (aa) residue precursor protein with a putative 33 aa signal peptide that is cleaved to generate a 147 aa mature protein, which shares approximately 92% and 79% aa sequence identity with mouse and human IL-22, respectively. IL-22 signals through a heterodimeric receptor complex composed of the IL-22R (CRF2-9) subunit and the ( chain of IL-10R (CRF2-4). In addition, IL-22 also binds to a secreted member of the class II cytokine receptor family called IL-22BP that acts as a natural IL-22 antagonist. IL-22 upregulates acute-phase reactants in the liver and hepatoma cells. In a rat hepatoma cell line, IL-22 has been shown to activate the Jak/STAT and MAPK signaling pathways (3).

References
  1. Kotenko, S.V. (2002) Cytokine and Growth Factor Reviews 13:223.
  2. Kettlewell, J. (2002) R&D Systems, unpublished results.
  3. Lejeune, D. et al. (2002) J. Biol. Chem. 277:33673.
Long Name
Interleukin 22
Entrez Gene IDs
50616 (Human); 50929 (Mouse); 500836 (Rat)
Alternate Names
Cytokine Zcyto18; IL-10-related T-cell-derived inducible factor; IL22; IL-22; IL-D110; IL-TIF; ILTIFIL-10-related T-cell-derived-inducible factor; IL-TIFMGC79382; interleukin 22; interleukin-22; MGC79384; TIFa; TIFIL-23; zcyto18

Citations for Recombinant Rat IL-22 Protein

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.

2 Citations: Showing 1 - 2
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  1. IL-22 Binding Protein Promotes the Disease Process in Multiple Sclerosis
    Authors: H Lindahl, AO Guerreiro-, SK Bedri, M Linnerbaue, M Lindén, N Abdelmagid, K Tandre, C Hollins, L Irving, C Glover, C Jones, L Alfredsson, L Rönnblom, I Kockum, M Khademi, M Jagodic, T Olsson
    J. Immunol., 2019-07-10;0(0):.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Cell Culture
  2. Interleukin-22 ameliorates liver fibrosis through miR-200a/beta-catenin
    Sci Rep, 2016-11-07;6(0):36436.
    Species: Mouse
    Sample Types: In Vivo, Whole Cells
    Applications: Bioassay, In Vivo

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