Human IL-1 RI Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human IL-1 RI in direct ELISAs and Western blots. In direct ELISAs and Western blots,approximately 5‑10% cross-reactivity with recombinant human IL‑1 RII is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Protein A or G purified
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-1 RI
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    Recombinant Human IL‑1 RI (Catalog # 269-1R)
  • Neutralization
    Measured by its ability to neutralize IL‑1 beta /IL‑1F2-induced inhibition of proliferation in the A375s2 human melanoma cell line. The Neutralization Dose (ND50) is typically 5-10 µg/mL in the presence of 0.25 ng/mL Recombinant Human IL‑1 beta /IL‑1F2.
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
IL‑1 beta /IL‑1F2 Inhibition of Cell Proliferation and Neutralization by Human IL‑1 RI Antibody. Recombinant Human IL‑1 beta /
IL‑1F2 (Catalog # 201-LB) inhibits proliferation in the A375s2 human melanoma cell line in a dose-dependent manner (orange line). Activity elicited by Recombinant Human IL‑1 beta /IL‑1F2 (0.25 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IL‑1 RI Polyclonal Antibody (Catalog # AB‑269‑NA). The ND50 is typically 5-10 µg/mL.
Preparation and Storage
  • Reconstitution
    Reconstitute at 1 mg/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.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: IL-1 RI

Two distinct types of receptors that bind the pleiotropic cytokines IL-1 alpha and IL-1 beta have been described. The IL-1 receptor Type I is an 80 kDa transmembrane protein that is expressed predominantly by T cells, fibroblasts, and endothelial cells. IL-1 receptor Type II is a 68 kDa transmembrane protein found on B lymphocytes, neutrophils, monocytes, large granular leukocytes and endothelial cells. Both receptors are members of the immunoglobulin superfamily and show approximately 28% sequence identity in their extracellular domains. The two receptor types do not heterodimerize into a receptor complex.

An IL-1 receptor accessory protein that can heterodimerize with the Type I receptor in the presence of IL-1 alpha or IL-1 beta but not IL-1ra, was identified (1). This Type I receptor complex appears to mediate all the known IL-1 biological responses. The receptor Type II has a short cytoplasmic domain and does not transduce IL-1 signals. In addition to the membrane-bound form of IL-1 RII, a naturally-occurring soluble form of IL-1 RII has been described. It has been suggested that the Type II receptor, either as the membrane-bound or as the soluble form, serves as a decoy for IL-1 and inhibits IL-1 action by blocking the binding of IL-1 to the signaling Type I receptor complex. Recombinant IL-1 soluble receptor Type I is a potent antagonist of IL-1 action.

  • References:
    1. Greenfeder, S. et al. (1995) J. Biol. Chem. 270:13757.
  • Long Name:
    Interleukin 1 Receptor I
  • Entrez Gene IDs:
    3554 (Human); 16177 (Mouse)
  • Alternate Names:
    CD121 antigen-like family member A; CD121a antigen; CD121a; IL-1 RI; IL1R; IL1R1; IL1RI; IL-1RI; IL1RT1; IL-1RT1; IL-1RT-1; Interleukin 1 Receptor 1; interleukin 1 receptor, type I; interleukin receptor 1; interleukin-1 receptor type 1; p80
Related Research Areas
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Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

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

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Chicken Anti-Goat IgG Biotinylated Antibody

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Rabbit Anti-Goat IgG Biotinylated Antibody

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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

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