• Product name

    Anti-RAP1A + RAP1B antibody [EPR14814]
    See all RAP1A + RAP1B primary antibodies
  • Description

    Rabbit monoclonal [EPR14814] to RAP1A + RAP1B
  • Host species

  • Tested applications

    Suitable for: WB, IPmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human RAP1A + RAP1B aa 1-100. The exact sequence is proprietary.
    Database link: P62834, P61224

  • Positive control

    • HeLa, 293, MOLT4, C6, Raw264.7, PC12, NIH 3T3 and A431 cell lysate
  • General notes



    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    Preservative: 0.01% Sodium azide
    Constituents: 59% PBS, 40% Glycerol, 0.05% BSA
  • Concentration information loading...
  • Purity

    Protein A purified
  • Clonality

  • Clone number

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab187659 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 1/10000 - 1/50000. Predicted molecular weight: 21 kDa.
IP 1/50 - 1/70.


  • Relevance

    RAP1A: Induces morphological reversion of a cell line transformed by a Ras oncogene. Counteracts the mitogenic function of Ras, at least partly because it can interact with Ras GAPs and RAF in a competitive manner. Together with ITGB1BP1, regulates KRIT1 localization to microtubules and membranes. Plays a role in nerve growth factor (NGF)-induced neurite outgrowth. Plays a role in the regulation of embryonic blood vessel formation. Involved in the establishment of basal endothelial barrier function. May be involved in the regulation of the vascular endothelial growth factor receptor KDR expression at endothelial cell-cell junctions. RAP1B: GTP-binding protein that possesses intrinsic GTPase activity. Contributes to the polarizing activity of KRIT1 and CDH5 in the establishment and maintenance of correct endothelial cell polarity and vascular lumen. Required for the localization of phosphorylated PRKCZ, PARD3 and TIAM1 to the cell junction. Plays a role in the establishment of basal endothelial barrier function.
  • Cellular localization

    Cell membrane; Lipid-anchor. Cytoplasm. Cytoplasm › perinuclear region. Cell junction By similarity. Early endosome By similarity.
  • Database links

  • Alternative names

    • C21KG antibody
    • G-22K antibody
    • GTP-binding protein smg p21A antibody
    • GTP-binding protein smg p21B antibody
    • KREV1 antibody
    • OK/SW-cl.11 antibody
    • Ras-related protein Krev-1 antibody
    • Ras-related protein Rap-1A antibody
    • Ras-related protein Rap-1b antibody
    see all


  • All lanes : Anti-RAP1A + RAP1B antibody [EPR14814] (ab187659) at 1/10000 dilution

    Lane 1 : HeLa cell lysate
    Lane 2 : 293 cell lysate
    Lane 3 : MOLT4 cell lysate

    Lysates/proteins at 20 µg per lane.

    All lanes : Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/1000 dilution

    Predicted band size: 21 kDa
    Observed band size: 21 kDa

  • All lanes : Anti-RAP1A + RAP1B antibody [EPR14814] (ab187659) at 1/1000 dilution

    Lane 1 : C6 cell lysate
    Lane 2 : Raw264.7 cell lysate
    Lane 3 : PC12 cell lysate
    Lane 4 : NIH 3T3 cell lysate

    Lysates/proteins at 10 µg per lane.

    All lanes : Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/1000 dilution

    Predicted band size: 21 kDa
    Observed band size: 21 kDa

  • Immunoprecipitation analysis of A431 cell lysate labeling RAP1A + RAP1B with ab187659 at 1/50 dilution.  Secondary staining with anti-Rabbit IgG (HRP), specific to the non-reduced form of IgGat 1/1500 dilution.


ab187659 has not yet been referenced specifically in any publications.

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