Human IL-6 Fluorescein-conjugated Antibody

(5 citations)   
  • Species Reactivity
  • Specificity
    Detects human IL-6 in direct ELISAs. Does not cross-react with recombinant IL-6 from mouse, rat, or pig.
  • Source
    Monoclonal Mouse IgG2B Clone # 1936
  • Purification
    Protein A or G purified from ascites
  • Immunogen
    E. coli-derived recombinant human IL‑6
    Accession # P05231
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
  • Intracellular Staining by 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
Intracellular Staining by Flow Cytometry
Detection of IL‑6 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) treated with LPS were stained with Mouse Anti-Human IL‑6 Fluorescein‑conjugated Monoclonal Antibody (Catalog # IC206F, filled histogram) or isotype control antibody (Catalog # IC0041F, open histogram). 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

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.

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Sample Type
  1. A novel data mining system points out hidden relationships between immunological markers in multiple sclerosis.
    Authors: Gironi, Maira, Saresella, Marina, Rovaris, Marco, Vaghi, Matilde, Nemni, Raffaell, Clerici, Mario, Grossi, Enzo
    Immun Ageing, 2013;10(1):1.
    Species: Human
    Sample Type: whole cells
    Application: Flow
  2. Vitamin D receptor gene polymorphisms and HLA DRB1*04 cosegregation in Saudi type 2 diabetes patients.
    Authors: Al-Daghri NM, Al-Attas O, Alokail MS
    J. Immunol., 2012;188(3):1325-32.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
  3. Expression of the T cell receptor alpha/beta on a CD123+ BDCA2+ HLA-DR+ subpopulation in head and neck squamous cell carcinoma.
    Authors: Thiel A, Kesselring R, Pries R, Puzik A, Wittkopf N, Wollenberg B
    PLoS ONE, 2011;6(1):e15997.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
  4. Kinin receptor expression during Staphylococcus aureus infection.
    Authors: Bengtson SH, Phagoo SB, Norrby-Teglund A, Pahlman L, Morgelin M, Zuraw BL, Leeb-Lundberg LM, Herwald H
    Blood, 2006;108(6):2055-63.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
  5. Nucleoporation of dendritic cells: efficient gene transfer by electroporation into human monocyte-derived dendritic cells.
    Authors: Lenz P, Bacot SM, Frazier-Jessen MR, Feldman GM
    FEBS Lett., 2003;538(1):149-54.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG2B Fluorescein‑conjugated Control Antibody

Ctrl IC0041F 6  
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Staining Reagents
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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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