• Product name
    Anti-Paxillin (phospho Y31) antibody
    See all Paxillin primary antibodies
  • Description
    Rabbit polyclonal to Paxillin (phospho Y31)
  • Tested applications
    Suitable for: IHC-P, WBmore details
  • Species reactivity
    Reacts with: Mouse, Human
    Predicted to work with: Chicken
  • Immunogen

    Synthetic peptide (Human) derived from the region of human paxillin that contains tyrosine 31.

  • Positive control
    • NM_MG cells transfected with either the wild-type EGFP-tagged apxillin or a Y315F mutant.


  • Form
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage buffer
    Preservative: 0.05% Sodium Azide
    Constituents: 50% Glycerol, PBS, 1mg/ml BSA. pH 7.3
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Purification notes
    Purified from rabbit serum by sequential epitope-specific chromatography. The antibody has been negatively preadsorbed using i) a non-phosphopeptide corresponding to the site of phosphorylation to remove antibody that is reactive with non-phosphorylated paxillin, and ii) a generic tyrosine phosphorylated peptide to remove antibody that is reactive with phosphotyrosine, irrespective of the sequence. The final product is generated by affinity chromatography using a paxillin-derived peptide that is phosphorylated at tyrosine 31.
  • Clonality
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab4832 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
  • Application notes
    IHC-P: Use at an assay dependent dilution. Please see Grace et al., 2003.
    WB: 1/1000. Predicted molecular weight: 68 kDa. Can be blocked with Paxillin phospho Y31 and non-phospho peptides (pair)

    Not tested in other applications.
    Optimal dilutions/concentrations should be determined by the end user.
  • Target

    • Function
      Cytoskeletal protein involved in actin-membrane attachment at sites of cell adhesion to the extracellular matrix (focal adhesion).
    • Sequence similarities
      Belongs to the paxillin family.
      Contains 4 LIM zinc-binding domains.
    • Post-translational
      Phosphorylated on tyrosine residues during integrin-mediated cell adhesion, embryonic development, fibroblast transformation and following stimulation of cells by mitogens.
    • Cellular localization
      Cytoplasm > cytoskeleton. Cell junction > focal adhesion.
    • Information by UniProt
    • Database links
    • Alternative names
      • FLJ16691 antibody
      • FLJ23042 antibody
      • Paired box protein Pax 1 antibody
      • PAX 1 antibody
      • PAX1 antibody
      • PAXI_HUMAN antibody
      • Paxillin alpha antibody
      • Paxillin antibody
      • PXN antibody
      • PXN protein antibody
      see all


    • Predicted band size : 68 kDa

      Extracts prepared from NMµMG cells transfected with either the wild-type EGFP-tagged paxillin or a site directed mutant, in which tyrosine 31 was changed to phenylalanine, were resolved on a 10% Tris-glycine gel and transferred to nitrocellulose. Membranes were blocked with 1% BSA, followed by incubation with 0.5 µg/mL anti-paxillin [pY31] antibody. After washing, membranes were incubated with goat F(ab')2 anti-rabbit IgG alkaline phosphatase and the signal was detected by chemiluminescence using the Tropix WesternStar detection method and Kodak BioMax ultraclear film. The data show detection of paxillin phosphorylation with the wild-type but not the Y31F mutant recombinant proteins. Note that the recombinant EGFP-tagged paxillin proteins run at a higher Mr as opposed to the endogenous protein and that in both cell types that the antibody recognizes the endogenous wild-type paxillin protein, which migrates at the expected Mr of 68 kDa.
    • Colocalization of phospho Paxillin and actin in TGF-beta treated NMµMG cells. Green = actin stress fibers, Orange = Paxillin [pY31], Yellow = colocalization.


    This product has been referenced in:
    • Gill MB  et al. KSHV-TK is a tyrosine kinase that disrupts focal adhesions and induces Rho-mediated cell contraction. EMBO J 34:448-65 (2015). Read more (PubMed: 25471072) »
    • Kawada I  et al. Paxillin mutations affect focal adhesions and lead to altered mitochondrial dynamics: relevance to lung cancer. Cancer Biol Ther 14:679-91 (2013). IHC . Read more (PubMed: 23792636) »

    See all 4 Publications for this product

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