Canine IL-5 Antibody

  
  • Species Reactivity
    Canine
  • Specificity
    Detects canine canine IL‑5 in direct ELISAs and Western blots. In Western blots, approximately 15% cross-reactivity with recombinant bovine IL-5, recombinant equine IL-5, and recombinant feline IL-5 is observed and less than 5% cross-reactivity with recombinant rat IL-5, recombinant mouse IL-5, and recombinant human IL-5 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant canine IL-5
    Phe20-Ser134
    Accession # Q95J76
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Canine IL‑5 (Catalog # 1964-CL)
  • Immunocytochemistry
    5-15 µg/mL
    See below
  • Neutralization
    Measured by its ability to neutralize IL‑5-induced proliferation in the TF‑1 human erythroleukemic cell line. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The Neutralization Dose (ND50) is typically 0.75-3.0 µg/mL in the presence of 30 ng/mL Recombinant Canine IL‑5.
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.
Data Examples
Immunocytochemistry
IL‑5 in Canine PBMCs. IL‑5 was detected in immersion fixed canine peripheral blood mononuclear cells (PBMCs) treated with calcium ionomycin and PMA using Goat Anti-Canine IL‑5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1964) at 15 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to cell surface. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Cell Proliferation Induced by IL‑5 and Neutralization by Canine IL‑5 Antibody. Recombinant Canine IL‑5 (Catalog # 1964-CL) stimulates proliferation in the TF‑1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Canine IL‑5 (30 ng/mL) is neutralized (green line) by increasing concen­trations of Goat Anti-Canine IL‑5 Antigen Affinity‑purified Polyclonal Antibody (Catalog # AF1964). The ND50 is typically 0.75-3.0 µg/mL.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    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-5

Interleukin-5 (IL-5) is a 40‑45 kDa secreted disulfide-linked homodimeric glycoprotein that plays an important role in the differentiation, growth, and function of eosinophils. It also primes basophils for histamine and leukotriene release. In mice, IL-5 also induces the proliferation, differentiation, and immunoglobulin production of B cells especially B-1 cells that constitutively express IL-5 receptor alpha. IL-5 is primarily produced by CD4+ Th2 cells. Other cell types, including mast cells, visceral smooth muscle cells, bronchial epithelium, CD16+ NK cells, eosinophils and gamma δ T cells, can also produce IL-5. Canine IL-5 is synthesized as a 134 amino acid (aa) precursor that contains a 21 aa signal sequence and a 113 aa mature segment. Mature canine IL-5 shares 62%, 66%, 85%, 84%, 58%, and 56% aa sequence identity with mature human, guinea pig, porcine, feline, mouse, and rat IL-5, respectively. The receptor for IL-5 consists of a 60 kDa ligand-binding subunit (IL-5 R alpha ) and a 120 kDa signal-transducing subunit ( beta c) (1‑7).

  • References:
    1. Lalani, T. et al. (1999) Ann. Allergy Asthma Immunol. 82:317. 
    2. Karlen, S. et al. (1998) Intern. Rev. Immunol. 16:227. 
    3. Takatsu, K. (1998) Cytokine Growth Factor Rev. 9:25.
    4. Zabeau, L. et al. (2003) Curr. Drug Targets Inflamm. Allergy 2:319.
    5. Yang, S. et al. (2001) J. Interferon Cytokine Res. 21:361.
    6. Jans, D.A. and G. Hassan (1998) BioEssays 20:400.
    7. Geijsen, N. et al. (2001) Cytokine Growth Factor Rev. 12:19.
  • Long Name:
    Interleukin 5
  • Entrez Gene IDs:
    3567 (Human); 16191 (Mouse); 24497 (Rat); 397409 (Porcine); 280825 (Bovine); 403790 (Canine); 493803 (Feline)
  • Alternate Names:
    BCDF mu; B-cell differentiation factor I; BCGFII; EDF; Eo-CSF; Eosinophil differentiation factor; IL5; IL-5; IL-5T-cell replacing factor; interleukin 5 (colony-stimulating factor, eosinophil); interleukin-5; TRF; TRFB cell differentiation factor I
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