Thermo Fisher Scientific Phospho-FAK (Tyr397) Monoclonal Antibody (M121)

Applications

Tested Dilution

Publications

Western Blot (WB)

1:500

-

Product Specifications

Species Reactivity

Human, Mouse, Rat

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

M121

Immunogen

Clone (M121) was generated from a synthetic peptide (coupled to KLH) corresponding to amino acid residues around tyrosine 397 of human FAK. This peptide sequence has high homology to the conserved tyrosine site in rat and mouse FAK.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.25 mg/mL

Purification

Protein A

Storage buffer

PBS with 1mg/mL BSA, 50% glycerol

Contains

0.05% sodium azide

Storage conditions

-20° C, Avoid Freeze/Thaw Cycles

Shipping conditions

Wet ice

RRID

AB_2942607

Product Specific Information

The antibody detects a 125 kDa* protein on SDS-PAGE immunoblots of untreated HUVEC cells. This phosphorylated band is greatly reduced after treatment with alkaline phosphatase.

Target Information

Focal Adhesion Kinase (FAK) is a 125 kDa non-receptor protein tyrosine kinase that acts as a substrate for Src and is a key element of integrin signaling. FAK plays an important role in cell spreading, differentiation, migration, cell death, and acceleration of the G1 to S phase transition of the cell cycle. FAK has a central catalytic domain and a C-terminal tail that localizes it to focal adhesions, which are sites where cells attach to the extracellular matrix via surface integrin receptors. Increased FAK tyrosine phosphorylation occurs upon integrin engagement with fibronectin. Adhesion of murine NIH3T3 fibroblasts to fibronectin promotes association of the Grb2 adapter protein and c-Src PTK with FAK in vivo, and also results in activation of the ERK2 MAP kinase. In v-Src-transformed NIH3T3, the association of v-Src, Grb2, and Sos with FAK is independent of cell adhesion to fibronectin. In vitro the Grb2 SH2 domain binds directly to tyrosine-phosphorylated FAK, and the binding site has been identified as Tyr925 by site directed mutagenesis. Several transcript variants encoding different isoforms have been found for the FAK gene, but the full-length natures of only three of them have been determined.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.