Cotton Rat IFN-alpha Antibody

(1 citations)   
  • Species Reactivity
    Cotton Rat
  • Specificity
    Detects cotton rat IFN-alpha  in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than 2% cross-reactivity with recombinant human IFN-beta and recombinant cotton rat IFN-gamma is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant cotton rat IFN-alpha
    Cys24-Lys190 (Cys109Tyr)
    Accession # AAL18816
  • 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 Cotton Rat IFN-alpha (Cys109Tyr) (Catalog # 1082-CR)
  • Neutralization
    Measured by its ability to neutralize IFN‑ alpha inhibition of EMCV-induced cytopathy in the LCRT cotton rat fibrosarcoma cell line. Vogel, S. and M. Hogan (1995) in Current Protocols in Immunology. Ciocio, R. (ed); John Wiley & Sons, Inc. p. 6. 9. 1. The Neutralization Dose (ND50) is typically 0.015-0.065 µg/mL in the presence of 0.2 ng/mL Recombinant Cotton Rat IFN‑ alpha (Cys109Tyr).
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
IFN‑ alpha  Inhibition of EMCV-induced Cytopathy and  Neutralization by Cotton Rat IFN‑ alpha  Antibody.

Recombinant Cotton Rat IFN‑ alpha (Cys109Tyr) (Catalog # 1082‑CR) reduces the Encephalomyocarditis Virus (EMCV)-induced cytopathy in the LCRT cotton rat fibrosarcoma cell line in a dose-dependent manner (orange line), as measured by crystal violet staining. Inhibition of EMCV activity elicited by Recombinant Cotton Rat IFN‑ alpha (Cys109Tyr) (0.2 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Cotton Rat IFN‑ alpha Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1082). The ND50 is typically 0.015‑0.065 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: IFN-alpha

Interferon-alpha, also known as leukocyte interferon, comprises a group of related but distinct proteins that share over 95% amino acid sequence homology. They are members of the type I interferon family which share a common cell surface receptor composed of two subunits, a 100 kDa ligand-binding subunit (IFN-alpha R1) and a 125 kDa subunit (IFN-alpha R2) that is involved both in ligand-binding and signal transduction. IFN-alpha is expressed primarily by leukocytes upon activation by viruses, bacteria, cytokines and growth factors. IFN-alpha has been shown to have anti-viral and immunomodulatory activities on target cells. It can also inhibit cell proliferation as well as induce apoptosis (1, 2).

Cotton rat IFN-alpha 1 cDNA encodes a 189 amino acid (aa) residue precursor protein with a putative 23 aa signal sequence and a 166 aa mature protein. The protein contains five cysteines, four of which are involved in two intrachain disulfide bonds. Cotton rat IFN-alpha 1 shares 52%, 67%, 68% and 72% aa sequence identity to human, rat, hamster and mouse IFN-alpha 1, respectively.

  • References:
    1. Domanski, P. and O.R. Colamonici (1996) Cytokine Growth Factor Rev. 7:143.
    2. Pestka, S. (2000) Biopolymers 55:254.
  • Long Name:
    Interferon alpha
  • Entrez Gene IDs:
    3440 (Human)
  • Alternate Names:
    IFNalpha; IFN-alpha
Related Research Areas
Citations:

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 Citations: Showing 1 - 1

  1. Synergistic induction of interferon alpha through TLR-3 and TLR-9 agonists identifies CD21 as interferon alpha receptor for the B cell response.
    Authors: Kim D, Niewiesk S
    PLoS Pathog, 2013;9(3):e1003233.
    Species: Cotton Rat
    Sample Type: Whole Cells
    Application: Neut
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Control

Ctrl AB-108-C 191  
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Secondary Antibodies
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Goat IgG HRP-conjugated Antibody

WB, Simple Western HAF109 19  
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Goat IgG HRP-conjugated Antibody

WB HAF017 15  
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Goat IgG (H+L) PE-conjugated Antibody

Flow F0107 4  
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Donkey Anti-Goat IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL001 9
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Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL003 5
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Goat IgG (H+L) APC-conjugated Antibody

Flow F0108 6  
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Goat IgG Horseradish Peroxidase-conjugated Antibody

WB HAF019 6  
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Donkey Anti-Goat IgG Antibody

WB AF109 6
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Donkey Anti-Goat IgG Biotinylated Antibody

WB BAF109 3
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Goat IgG VisUCyte HRP Polymer

IHC VC004  
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Goat IgG (H+L) Fluorescein-conjugated Antibody

Flow F0109 2  
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Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL002
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Chicken Anti-Goat IgG Biotinylated Antibody

WB BAF019
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Rabbit Anti-Goat IgG Biotinylated Antibody

WB BAF017
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Rabbit Anti-Goat IgG (H+L) Affinity Purified PAb, X Absorbed

WB, ELISA R-401-C-ABS
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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

Flow F0124
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