Human IL-6 Alexa Fluor® 488-conjugated Antibody

  • Species Reactivity
  • Specificity
    Detects human IL-6 in direct ELISAs.
  • Source
    Monoclonal Mouse IgG1 Clone # 903129
  • Purification
    Protein A or G purified from ascites
  • Immunogen
    E. coli-derived recombinant human IL-6
    Accession # Q75MH2
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
    Alexa Fluor 488
  • Intracellular Staining by Flow Cytometry
    5 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
Intracellular Staining by Flow Cytometry

Detection of IL‑6 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) (A) untreated or (B) treated overnight with 250 ng/mL LPS were stained with Mouse Anti-Human IL‑6 Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # IC2062G) and Mouse Anti-Human CD14 APC‑conjugated Monoclonal Antibody (Catalog # FAB3832A). Quadrant markers were set based on control antibody staining (Catalog # IC002A). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

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

Interleukin 6 (IL-6) is a pleiotropic alpha -helical cytokine that plays important roles in acute phase reactions, inflammation, hematopoiesis, bone metabolism, and cancer progression. IL-6 activity is essential for the transition from acute inflammation to either acquired immunity or chronic inflammatory disease. It is secreted by multiple cell types as a 22-28 kDa phosphorylated and variably glycosylated molecule (1-4). Mature human IL-6 is 183 amino acids (aa) in length and shares 41% aa sequence identity with mouse and rat IL-6 (5). Alternate splicing generates several isoforms with internal deletions, some of which exhibit antagonistic properties (6-9). Human IL-6 is equally active on mouse and rat cells (10). IL-6 induces signaling through a cell surface heterodimeric receptor complex composed of a ligand binding subunit (IL-6 R) and a signal transducing subunit (gp130). IL-6 binds to IL-6 R, triggering IL-6 R association with gp130 and gp130 dimerization (11). gp130 is also a component of the receptors for CLC, CNTF, CT-1, IL-11, IL-27, LIF, and OSM (12). Soluble forms of IL-6 R are generated by both alternate splicing and proteolytic cleavage (3). In a mechanism known as trans-signaling, complexes of soluble IL-6 and IL-6 R elicit responses from gp130-expressing cells that lack cell surface IL-6 R (3). Trans‑signaling enables a wider range of cell types to respond to IL-6, as the expression of gp130 is ubiquitous, while that of IL-6 R is predominantly restricted to hepatocytes, leukocytes, and lymphocytes (3). Soluble splice forms of gp130 block trans-signaling from IL-6/IL-6 R but not from other cytokines that utilize gp130 as a coreceptor (4, 13).

  • References:
    1. Van Snick, J. (1990) Annu. Rev. Immunol. 8:253.
    2. Hodge, D.R. et al. (2005) Eur. J. Cancer 41:2502.
    3. Jones, S.A. (2005) J. Immunol. 175:3468.
    4. Rose-John, S. et al. (2006) J. Leukoc. Biol. 80:227.
    5. Hirano, T. et al. (1986) Nature 324:73.
    6. Alberti, L. et al. (2005) Cancer Res. 65:2.
    7. Kestler, D.P. et al. (1995) Blood 86:4559.
    8. Kestler, D.P. et al. (1999) Am. J. Hematol. 61:169.
    9. Bihl, M.P. et al. (2002) Am. J. Respir. Cell Mol. Biol. 27:48.
    10. Chiu, C.P. et al. (1988) Proc. Natl. Acad. Sci. USA 85:7099.
    11. Murakami, M. et al. (1993) Science 260:1808.
    12. Muller-Newen, G. (2003) Sci. STKE 2003:PE40.
    13. Mitsuyama, K. et al. (2006) Clin. Exp. Immunol. 143:125. 
  • Long Name:
    Interleukin 6
  • Entrez Gene IDs:
    3569 (Human); 16193 (Mouse); 24498 (Rat); 399500 (Porcine); 280826 (Bovine); 403985 (Canine); 100034196 (Equine); 493687 (Feline); 100008733 (Rabbit)
  • Alternate Names:
    B cell stimulatory factor-2; B-cell differentiation factor; BSF-2; BSF2CTL differentiation factor; CDF; HGFHSFIFNB2Hybridoma growth factor; IFN-beta 2; IFN-beta-2; IL6; IL-6B-cell stimulatory factor 2; Interferon beta-2; interleukin 6 (interferon, beta 2); interleukin BSF-2; interleukin-6; MGI-2A
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG1 Alexa Fluor® 488-conjugated Antibody

Ctrl IC002G 2  
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Staining Reagents
Description Application Cat# Citations Images  

Flow Cytometry Permeabilization/Wash Buffer I (1X)

Flow FC005 4
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Flow Cytometry Fixation Buffer (1X)

Flow FC004 3
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Flow Cytometry Fixation & Permeabilization Buffer Kit I

Flow FC009
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Flow Cytometry Fixation/Permeabilization Buffer I (1X)

Flow FC007
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