• Product nameAnti-IQGAP1 antibody [EPR5221]
    See all IQGAP1 primary antibodies
  • Description
    Rabbit monoclonal [EPR5221] to IQGAP1
  • Tested applicationsSuitable for: ICC/IF, WB, IHC-Pmore details
    Unsuitable for: Flow Cyt or IP
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide corresponding to residues in Human IQGAP1.

  • Positive control
    • HeLa, COS-1, HUVEC, and Jurkat cell lysates, Human uterus tissue
  • General notes

    This product is a recombinant rabbit monoclonal antibody.

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.

    Produced using Abcam's RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5, 675, 063 and/or 7, 429, 487.



Our Abpromise guarantee covers the use of ab109292 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
ICC/IF Use at an assay dependent concentration.
WB 1/1000 - 1/10000. Detects a band of approximately 195 kDa (predicted molecular weight: 189 kDa).
IHC-P 1/500 - 1/1000. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
  • Application notesIs unsuitable for Flow Cyt or IP.
  • Target

    • FunctionBinds to activated CDC42 but does not stimulate its GTPase activity. It associates with calmodulin. Could serve as an assembly scaffold for the organization of a multimolecular complex that would interface incoming signals to the reorganization of the actin cytoskeleton at the plasma membrane. May promote neurite outgrowth.
    • Tissue specificityExpressed in the placenta, lung, and kidney. A lower level expression is seen in the heart, liver, skeletal muscle and pancreas.
    • Sequence similaritiesContains 1 CH (calponin-homology) domain.
      Contains 4 IQ domains.
      Contains 1 Ras-GAP domain.
      Contains 1 WW domain.
    • DomainRegions C1 and C2 can either interact with nucleotide-free CDC42, or interact together, depending on the phosphorylation state of Ser-1443. When Ser-1443 is not phosphorylated, C1 and C2 interact, which prevents binding of nucleotide-free CDC42 and promotes binding of GTP-bound CDC42. Phosphorylation of Ser-1443 prevents interaction between C1 and C2, which opens the structure of the C-terminus and allows binding and sequestration of nucleotide-free CDC42 on both C1 and C2.
    • Post-translational
      Phosphorylation of Ser-1443 by PKC prevents interaction between C1 and C2, allowing binding of nucleotide-free CDC42. Ser-1443 phosphorylation enhances the ability to promote neurite outgrowth.
    • Cellular localizationCell membrane.
    • Information by UniProt
    • Database links
    • Alternative names
      • HUMORFA01 antibody
      • IQ motif containing GTPase activating protein 1 antibody
      • IQGA1_HUMAN antibody
      • Iqgap1 antibody
      • KIAA0051 antibody
      • p195 antibody
      • Ras GTPase activating like protein 1 antibody
      • Ras GTPase-activating-like protein IQGAP1 antibody
      • RasGAP-like with IQ motifs antibody
      • SAR1 antibody
      see all

    Anti-IQGAP1 antibody [EPR5221] images

    • Immunocytochemistry/Immunofluorescence analysis of HeLa (Human epithelial cell line from cervix adenocarcinoma) labeling IQGAP1 with Purified ab109292 at 1/500 dilution (5 µg/ml). Cells were fixed with 100% methanol. ab150077 Goat anti rabbit IgG(Alexa Fluor® 488) at 1/1000 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI. PBS was used instead of the primary antibody as the negative control.

    • Predicted band size : 189 kDa

      Lane 1: Wild-type HAP1 cell lysate (20 µg)
      Lane 2: IQGAP1 knockout HAP1 cell lysate (20 µg)
      Lane 3: HEK293 cell lysate (20 µg)
      Lane 4: HeLa cell lysate (20 µg)
      Lanes 1 - 4: Merged signal (red and green). Green - ab109292 observed at 190 kDa. Red - loading control, ab7291, observed at 52 kDa.
      ab109292 was shown to specifically react with IQGAP1 when IQGAP1 knockout samples were used. Wild-type and IQGAP1 knockout samples were subjected to SDS-PAGE. ab109292 and ab7291 (loading control to alpha tubulin) were diluted 1/1000 and 1/2000 and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776 secondary antibodies at 1/10000 dilution for 1 h at room temperature before imaging.

    • All lanes : Anti-IQGAP1 antibody [EPR5221] (ab109292) at 1/1000 dilution

      Lane 1 : HeLa cell lysate
      Lane 2 : Cos-1 cell lysate
      Lane 3 : HUVEC cell lysate
      Lane 4 : Jurkat cell lysate

      Lysates/proteins at 10 µg per lane.

      Predicted band size : 189 kDa
    • Immunohistochemical analysis of paraffin-embedded Human uterus tissue using ab109292 at a dilution of 1/500.

    References for Anti-IQGAP1 antibody [EPR5221] (ab109292)

    This product has been referenced in:

    See 1 Publication for this product

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