Human IL-26/AK155 Antibody

Catalog # Availability Size / Price Qty
Product Details
Citations (6)
Supplemental Products

Human IL-26/AK155 Antibody Summary

Species Reactivity
Detects human IL-26 in direct ELISAs and Western blots. In these formats, less than 5% cross‑reactivity with recombinant human IL-10 is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
E. coli-derived recombinant human IL-26 (R&D Systems, Catalog # 1375-IL)
Accession # Q9NPH9
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Human IL‑26/AK155 Monomer (Catalog # 1375-IL)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IL-26/AK155

IL-26 was originally cloned from herpesvirus saimiri (HVS)-transformed T cells and named AK155 (1). It is a member of the IL-10 family of class II cytokines that signal via heterodimeric receptor complexes composed of two type I transmembrane receptor subunits (2). The human IL-26 gene has been mapped to chromosome 12q15. It encodes a 171 amino acid polypeptide with a 21 amino acid signal peptide. In addition to HVS-transformed T cells, IL-26 is also expressed in other virus transformed T cell lines, fresh peripheral mononuclear cells, activated NK cells and T cells. A mouse homologue of human IL-26 has not been identified. IL-26 binds with high-affinity to the heterodimeric complex consisting of the ligand-binding IL-20 R alpha and non ligand-binding IL-10 R beta (3). Activation of the receptor complex results in rapid phosphorylation of STAT1 and STAT3. Although the IL-26 receptor complex is highly specific for IL-26 and is not activated by other class II cytokines, the individual subunits of the IL-26 receptor complex are components in receptor complexes for other class II cytokines (1). IL-20 R alpha can form dimers with IL-20 R beta to function as signaling receptors for IL-19, IL-20, and IL-24. IL-10 R beta  can complex with IL-10 R alpha, IL-22 R, and IL-28 R alpha  to transduce signals for IL-10, IL-22, and the three novel IFNs (IL-28A, IL-28B and IL-29), respectively. The physiological functions of IL-26 remain to be determined. IL-26 was reported to be a homodimer in solution (1).

  1. Knappe. A. et al. (2000) J. Virology 74:3881.
  2. Renauld, J.-C. (2003) Nature Reviews Immunology 3:667.
  3. Sheikh, F. et al. (2004) J. Immunol. 172(4):2006.
  4. Unpublished data (2003) R&D Systems, Inc.
Long Name
Interleukin 26
Entrez Gene IDs
55801 (Human)
Alternate Names
AK155; AK155IL-26interleukin-26; IL26; IL-26; interleukin 26; Protein AK155

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Citations for Human IL-26/AK155 Antibody

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.

6 Citations: Showing 1 - 6
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  1. Differentiation of IL-26+ TH17 intermediates into IL-17A producers via epithelial crosstalk in psoriasis
    Authors: Fries, A;Saidoune, F;Kuonen, F;Dupanloup, I;Fournier, N;Guerra de Souza, AC;Haniffa, M;Ma, F;Gudjonsson, JE;Roesner, L;Li, Y;Werfel, T;Conrad, C;Gottardo, R;Modlin, RL;Di Domizio, J;Gilliet, M;
    Nature communications
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC
  2. IL-26 mediates epidermal growth factor receptor-tyrosine kinase inhibitor resistance through endoplasmic reticulum stress signaling pathway in triple-negative breast cancer cells
    Authors: T Itoh, R Hatano, Y Horimoto, T Yamada, D Song, H Otsuka, Y Shirakawa, S Mastuoka, N Iwao, TM Aune, NH Dang, Y Kaneko, K Okumura, C Morimoto, K Ohnuma
    Cell Death & Disease, 2021-05-21;12(6):520.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC, PLA
  3. Regulation of pulmonary graft-versus-host disease by IL-26+CD26+CD4 T lymphocytes.
    Authors: Ohnuma K, Hatano R, Aune T, Otsuka H, Iwata S, Dang N, Yamada T, Morimoto C
    J Immunol, 2015-03-18;194(8):3697-712.
    Species: Mouse
    Sample Types: In Vivo
    Applications: Neutralization
  4. IL-26 Is Overexpressed in Rheumatoid Arthritis and Induces Proinflammatory Cytokine Production and Th17 Cell Generation.
    Authors: Corvaisier M, Delneste Y, Jeanvoine H, Preisser L, Blanchard S, Garo E, Hoppe E, Barre B, Audran M, Bouvard B, Saint-Andre J, Jeannin P
    PLoS Biol, 2012-09-25;10(9):e1001395.
    Species: Human
    Sample Types: Serum
    Applications: ELISA Development
  5. The role of the novel Th17 cytokine IL-26 in intestinal inflammation.
    Authors: Dambacher J, Beigel F, Zitzmann K, De Toni EN, Goke B, Diepolder HM, Auernhammer CJ, Brand S
    Gut, 2008-05-15;58(9):1207-17.
    Species: Human
    Sample Types: Serum, Whole Tissue
    Applications: ELISA Development, IHC-P
  6. Cutting edge: IL-26 signals through a novel receptor complex composed of IL-20 receptor 1 and IL-10 receptor 2.
    Authors: Sheikh F, Baurin VV, Lewis-Antes A, Shah NK, Smirnov SV, Anantha S, Dickensheets H, Dumoutier L, Renauld JC, Zdanov A, Donnelly RP, Kotenko SV
    J. Immunol., 2004-02-15;172(4):2006-10.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot


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Secondary Antibodies

Goat IgG (H+L) Antibody


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