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  • 05-537 - Anti-FAK Antibody, clone 4.47

05-537 Sigma-Aldrich

Anti-FAK Antibody, clone 4.47

clone 4.47, Upstate®, from mouse

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, F-FA, Primary Antibodies
clone   4.47, monoclonal
biological source   mouse
application(s)   immunocytochemistry: suitable
  immunohistochemistry: suitable
  immunoprecipitation (IP): suitable
  western blot: suitable
species reactivity   mouse, rat, human
shipped in   dry ice
isotype   IgG1
Quality Level   100
antibody product type   primary antibodies
mfr. no.   Upstate®
NCBI accession no.   NM_005607
UniProt accession no.   Q05397
Gene Information   human ... PTK2(5747)


General description

Focal adhesion kinase (FAK) is a cytoplasmic protein tyrosine kinase that has been implicated to play an important role in integrin-mediated signal transduction pathways. FAK becomes activated and tyrosine phosphorylated in integrin-mediated cell adhesion and is colocalized with integrins and other cytoskeletal proteins in focal contacts in a variety of adherent cells. Physical interactions of FAK with the integrin cytoplasmic domain as well as cytoskeletal proteins talin, paxillin, and/ or tensin have been proposed to play a key role in FAK activation by facilitating its oligomerization and transphosphorylation. FAK shows a rapid increase in tyrosine phosphorylation when stimulated by diverse signaling molecules, including those that regulate embryonic development, cell proliferation, migration and apoptosis, and efficient study methods are in high demand.


Recognizes p125FAK; does not cross react with Pyk-2.


GST fusion protein corresponding to residues 1-423 of human FAK (focal adhesion kinase); specific for p125FAK


Anti-FAK Antibody, clone 4.47 is an antibody against FAK for use in IC, IH, IP & WB.

Research Category

Research Sub Category
Cytoskeletal Signaling

Target description

125 kDa

Physical form

Format: Purified

Protein G Purified immunoglobulin in Immunoaffinity Purified immunoglobulin in 0.2M Tris-glycine, pH 7.4, 0.15M NaCl, 0.1mM EDTA, 0.05% sodium azide before the addition of glycerol to 30%

Protein G Purified

Storage and Stability

Maintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


Routinely evaluated by immunoblot on 3T3/A31 RIPA cell lysate, PC-12, Hep-G2, SW 620 or Jurkat RIPA cell lysates


Replaces: 04-591

Analysis Note

Positive Control Included: 3T3 Cell Lysate (12-305). Other controls: A31 cell lysate, PC-12, Hep-G2, SW 620 and Jurkat RIPA cell lysates

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
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