Human IL-6 R alpha Fluorescein-conjugated Antibody

  • Species Reactivity
  • Specificity
    Detects human IL-6 R alpha in ELISAs and Western blots. In ELISAs, no cross-reactivity or interference was observed with recombinant human (rh) IL-1 alpha, recombinant mouse (rm) IL-1 alpha, rhIL-1 beta, rmIL-1 beta, rhIL-1ra, rhIL-2, rhIL-3, rmIL-3, rhIL-4, rmIL-4, rhIL-5, rmIL-5, rhIL-6, rmIL-6, rhIL-7, rmIL-7, rhIL-8, rhIL-9, rmIL-9, rhIL-10, or rhIL-11.
  • Source
    Monoclonal Mouse IgG1 Clone # 17506
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL‑6 R alpha
    Accession # P08887
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
  • Flow Cytometry
    10 µL/106 cells
    See below
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
Detection of IL‑6 R alpha in Human Blood Lymphocytes by Flow Cytometry. Human peripheral blood lymphocytes were stained with Mouse Anti-Human CD3 epsilon APC‑conjugated Monoclonal Antibody (Catalog # FAB100A) and either (A) Mouse Anti-Human IL‑6 R alpha Fluorescein‑conjugated Monoclonal Antibody (Catalog # FAB227F) or (B) Mouse IgG1 Fluorescein Isotype Control (Catalog # IC002F). View our protocol for Staining Membrane-associated Proteins.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Protect from light. Do not freeze.
    • 12 months from date of receipt, 2 to 8 °C as supplied.
Background: IL-6 R alpha

The multi-functional factor interleukin 6 (IL-6) exerts its activities through binding to a high-affinity receptor complex consisting of two membrane glycoproteins: an 80 kDa component receptor that binds IL-6 with low affinity (IL-6 R alpha ) and a signal-transducing component of 130 kDa (gp130) that does not bind IL-6 by itself, but is required for high-affinity binding of IL-6 by the complex. Both components of the receptor complex, IL-6 R alpha and gp130 have been cloned, sequenced, and expressed (1-4).

A soluble form of the IL-6 R alpha has been found in the urine of healthy adult humans (5). This soluble receptor apparently arises from proteolytic cleavage of membrane-bound IL-6 R alpha. No naturally-occurring mRNA encoding a truncated form of the IL-6 R alpha has been reported. Soluble forms of human and murine IL-6 R alpha s have been constructed, however, by insertion of termination codons into the regions of the IL-6 R alpha cDNAs encoding the external portions of the receptors and prior to the transmembrane domains. These soluble receptors have been expressed in COS-7 and CHO cells and have been shown to bind to IL-6 in solution and to augment the activity of IL-6 as a result of the binding of the IL-6/IL-6 R alpha complex to membrane-bound gp130 (6, 7).

  • References:
    1. Yamasaki et al. (1988) Science 241:825.
    2. Baumann et al. (1990) J. Biol. Chem. 265:19853.
    3. Hibi et al. (1990) Cell 63:1149.
    4. Schooltink et al. (1991) Eur. J. Biochem. 277:659.
    5. Novick et al. (1989) J. Exp. Med. 170:1409.
    6. Yasukawa et al. (1990) J. Biochem. 108:673.
    7. Saito et al. (1991) J. Immunology 147:168.
  • Long Name:
    Interleukin 6 Receptor alpha
  • Entrez Gene IDs:
    3570 (Human); 16194 (Mouse)
  • Alternate Names:
    CD126; IL6R alpha; IL6R; IL-6Ra
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG1 Fluorescein-conjugated Antibody

Ctrl IC002F 9  
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Staining Reagents
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Flow Cytometry Staining Buffer (1X)

Flow FC001 3
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Flow Cytometry Mouse Lyse Buffer (10X)

Flow FC003 1
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Flow Cytometry Human Lyse Buffer (10X)

Flow FC002 1
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