• Product nameAnti-FAK antibody [63D5]
    See all FAK primary antibodies
  • Description
    Mouse monoclonal [63D5] to FAK
  • Tested applicationsSuitable for: WB, IP, ELISA, Flow Cytmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant fragment corresponding to amino acids 706-1052 of Human FAK with a His tag

  • Positive control
    • A431, HeLa, NIH2T3 and C6 cell lysates



Our Abpromise guarantee covers the use of ab72140 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 1/5000. Detects a band of approximately 119 kDa (predicted molecular weight: 119 kDa).
IP Use at an assay dependent concentration.

Use at 2 µl/400 µl cell lysate

ELISA Use at an assay dependent concentration.
Flow Cyt 1/100. ab170190-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • FunctionNon-receptor protein-tyrosine kinase implicated in signaling pathways involved in cell motility, proliferation and apoptosis. Activated by tyrosine-phosphorylation in response to either integrin clustering induced by cell adhesion or antibody cross-linking, or via G-protein coupled receptor (GPCR) occupancy by ligands such as bombesin or lysophosphatidic acid, or via LDL receptor occupancy. Microtubule-induced dephosphorylation at Tyr-397 is crucial for the induction of focal adhesion disassembly. Plays a potential role in oncogenic transformations resulting in increased kinase activity.
  • Tissue specificityExpressed in all organs tested, in lymphoid cell lines, but most abundantly in brain.
  • Sequence similaritiesBelongs to the protein kinase superfamily. Tyr protein kinase family. FAK subfamily.
    Contains 1 FERM domain.
    Contains 1 protein kinase domain.
  • DomainThe first Pro-rich domain interacts with the SH3 domain of CRK-associated substrate (BCAR1) and CASL.
    The carboxy-terminal region is the site of focal adhesion targeting (FAT) sequence which mediates the localization of FAK1 to focal adhesions.
  • Post-translational
    Phosphorylated on 6 tyrosine residues upon activation. Microtubule-induced dephosphorylation at Tyr-397 could be catalyzed by PTPN11 and regulated by ZFYVE21. Dephosphorylated by PTPN11 upon EPHA2 activation by its ligand EFNA1.
  • Cellular localizationCell junction > focal adhesion. Cell membrane. Constituent of focal adhesions.
  • Information by UniProt
  • Database links
  • Alternative names
    • FADK 1 antibody
    • FADK antibody
    • FAK related non kinase polypeptide antibody
    • FAK1 antibody
    • FAK1_HUMAN antibody
    • Focal adhesion kinase 1 antibody
    • Focal adhesion Kinase antibody
    • Focal adhesion kinase isoform FAK Del33 antibody
    • Focal adhesion kinase related nonkinase antibody
    • FRNK antibody
    • p125FAK antibody
    • pp125FAK antibody
    • PPP1R71 antibody
    • Protein phosphatase 1 regulatory subunit 71 antibody
    • Protein tyrosine kinase 2 antibody
    • Protein-tyrosine kinase 2 antibody
    • Ptk2 antibody
    • PTK2 protein tyrosine kinase 2 antibody
    see all

Anti-FAK antibody [63D5] images

  • Overlay histogram showing HeLa cells stained with ab72140 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab72140, 1/100 dilution) for 30 min at 22°C. The secondary antibody used was Alexa Fluor® 488 goat anti-mouse IgG (H+L) (ab150113) at 1/2000 dilution for 30 min at 22°C. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 1μg/1x106 cells) used under the same conditions. Unlabelled sample (blue line) was also used as a control. Acquisition of >5,000 events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter.
  • All lanes : Anti-FAK antibody [63D5] (ab72140) at 1/5000 dilution

    Lane 1 : HeLa cell lysate
    Lane 2 : A431 cell lysate
    Lane 3 : NIH3T3 cell lysate
    Lane 4 : C6 cell lysate

    Predicted band size : 119 kDa
    Observed band size : 119 kDa

References for Anti-FAK antibody [63D5] (ab72140)

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