Product nameAnti-FAK antibody [EP695Y]
See all FAK primary antibodies
DescriptionRabbit monoclonal [EP695Y] to FAK
Specificityab40794 recognises Focal adhesion kinase (FAK).
Tested applicationsSuitable for: Flow Cyt, ICC/IF, IHC-P, WB, IPmore details
Species reactivityReacts with: Mouse, Rat, Cow, Human
Synthetic peptide within Human FAK aa 700-800. The exact sequence is proprietary.
(Peptide available as
- WB and ICC: HeLa IHC: human hepatocellular carcinoma
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.
We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 40% Glycerol, 0.05% BSA, 59% PBS
Concentration information loading...
PurityProtein A purified
Immunizing Peptide (Blocking)
Our Abpromise guarantee covers the use of ab40794 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
|ICC/IF||1/250 - 1/500.|
|WB||1/1000. Detects a band of approximately 125 kDa (predicted molecular weight: 119 kDa).Can be blocked with Human FAK peptide (ab211922).|
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.
modificationsPhosphorylated 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
- FADK 1 antibody
- FADK antibody
- FAK related non kinase polypeptide antibody
Anti-FAK antibody [EP695Y] (ab40794) at 1/1000 dilution + Hela cell lysate
Predicted band size: 119 kDa
Observed band size: 119 kDa
ab40794 staining FAK in PANC-1 cells treated with CCK Octapeptide sulfated (ab120209), by ICC/IF. Increase of FAK expression correlates with increased concentration of CCK Octapeptide sulfated, as described in literature.
The cells were incubated at 37°C for 10 minutes in media containing different concentrations of ab120209 (CCK Octapeptide sulfated) in DMSO, fixed with 4% formaldehyde for 10 minutes at room temperature and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab40794 (1/200) dilution was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 anti-rabbit polyclonal antibody (ab96899) at 1/250 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI and are shown in blue.
Immunohistochemical analysis of paraffin-embedded human hepatocellular carcinoma using ab40794.
Immunofluorescent staining of HeLa cells using ab40794.
The image shows FAK antibody (ab40794) in human spleen tissue. Clear cytoplasmic positivity in a subset of germinal centre cells. The there is intense positivity of the serum in the blood vessels. Endogenous peroxidases was blocked using 2% H2O2, for 15 minutes.
Overlay histogram showing HeLa cells stained with ab40794 (red line). The cells were fixed with 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 (ab40794, 1/100 dilution) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit monoclonal IgG (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a decreased signal in HeLa cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween used under the same conditions.
All lanes : Anti-FAK antibody [EP695Y] (ab40794)
All lanes : Milk PBS Tween
Blocking peptides at 5 % per lane.
All lanes : HRP conjugated goat anti-rabbit poly clonal at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 119 kDa
Observed band size: 130 kDa why is the actual band size different from the predicted?
Exposure time: 5 minutes
Western blot analysis of RAW264.7 cells lysate (40μg/lane) labelling FAK with ab40794 at 1/5000 in 5% Milk PBS Tween for 16 hours at 4ºC. A HRP conjugated goat anti-rabbit poly clonal (1/5000) was used as the secondary antibody.
This product has been referenced in:
- Holmes HR et al. Control of cellular adhesion and myofibroblastic character with sub-micrometer magnetoelastic vibrations. J Biomech 71:199-207 (2018). Read more (PubMed: 29477260) »
- Gu HJ & Zhou B Focal adhesion kinase promotes progression and predicts poor clinical outcomes in patients with osteosarcoma. Oncol Lett 15:6225-6232 (2018). Read more (PubMed: 29849782) »