• Product name
    Anti-IL4R (phospho Y497) antibody
    See all IL4R primary antibodies
  • Description
    Rabbit polyclonal to IL4R (phospho Y497)
  • Host species
  • Specificity
    Detects endogenous levels of IL4R only when phosphorylated at tyrosine 497 (corresponding to mouse tyrosine 500)
  • Tested applications
    Suitable for: WB, ELISA, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthesized phosphopeptide derived from human IL4R around the phosphorylation site of tyrosine 497 (P-A-YP-R-S).

  • Positive control
    • 293 and HeLa cells


  • Form
  • Storage instructions
    Shipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
  • Storage buffer
    Preservative: 0.02% Sodium Azide
    Constituents: 50% Glycerol, PBS, 150mM Sodium chloride, pH 7.4
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Purification notes
    Purified from rabbit antiserum by affinity chromatography, using epitope specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
  • Clonality
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab61099 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Detects a band of approximately 89 kDa (predicted molecular weight: 89 kDa).
ELISA 1/5000.
ICC/IF 1/500 - 1/1000.


  • Function
    Receptor for both interleukin 4 and interleukin 13. Couples to the JAK1/2/3-STAT6 pathway. The IL4 response is involved in promoting Th2 differentiation. The IL4/IL13 responses are involved in regulating IgE production and, chemokine and mucus production at sites of allergic inflammmation. In certain cell types, can signal through activation of insulin receptor substrates, IRS1/IRS2.
    Soluble IL4R (sIL4R) inhibits IL4-mediated cell proliferation and IL5 up-regulation by T-cells.
  • Tissue specificity
    Isoform 1 and isoform 2 are highly expressed in activated T-cells.
  • Sequence similarities
    Belongs to the type I cytokine receptor family. Type 4 subfamily.
    Contains 1 fibronectin type-III domain.
  • Domain
    The extracellular domain represents the IL4 binding protein (IL4BP).
    The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding.
    The box 1 motif is required for JAK interaction and/or activation.
    Contains 1 copy of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). This motif is involved in modulation of cellular responses. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases.
  • Post-translational
    On IL4 binding, phosphorylated on C-terminal tyrosine residues. Phosphorylation on any one of tyrosine residues, Tyr-575, Tyr-603 or Tyr-631, is required for STAT6-induced gene induction.
    The soluble form (sIL4R/IL4BP) can also be produced by proteolytic cleavage at the cell surface (shedding) by a metalloproteinase.
  • Cellular localization
    Secreted and Cell membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • CD124 antibody
    • IL 4R alpha antibody
    • IL-4 receptor subunit alpha antibody
    • IL-4-binding protein antibody
    • IL-4R subunit alpha antibody
    • IL-4R-alpha antibody
    • IL-4RA antibody
    • IL4-BP antibody
    • Il4r antibody
    • IL4R nirs variant 1 antibody
    • IL4RA antibody
    • IL4RA_HUMAN antibody
    • Interleukin 4 receptor alpha chain antibody
    • Interleukin 4 receptor antibody
    • sIL4Ralpha/prot antibody
    • Soluble IL-4 receptor subunit alpha antibody
    • Soluble IL-4R-alpha antibody
    • Soluble interleukin-4 receptor subunit alpha antibody
    see all


  • All lanes : Anti-IL4R (phospho Y497) antibody (ab61099) at 1/500 dilution

    Lane 1 : Extracts from 293 cells
    Lane 2 : Extracts from 293 cells with immunizing phosphopeptide

    Predicted band size: 89 kDa
    Observed band size: 89 kDa

  • ICC/IF image of ab61099 (at a 1/500 dilution) stained HeLa cells, minus immunising peptide (left image) and plus immunising peptide (right image).


This product has been referenced in:
  • Kurgonaite K  et al. Essential role of endocytosis for interleukin-4-receptor-mediated JAK/STAT signalling. J Cell Sci 128:3781-95 (2015). Read more (PubMed: 26306492) »

See 1 Publication for this product

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