Non-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 (By similarity). Plays a potential role in oncogenic transformations resulting in increased kinase activity.
Specificity
Natural and recombinant Mouse Focal adhesion kinase 1
Subcellular Location
Cell junction focal adhesion Cell membrane Peripheral membrane protein Cytoplasmic side Constituent of focal adhesions.
Interacts with CAS family members. Interacts with GIT1. Component of a complex that contains at least FER, CTTN and PTK2/FAK. Interacts with BMX. Interacts with STEAP4. Interacts with ZFYVE21. Interacts with ESR1. Interacts with PIK3R1 or PIK3R2. Interacts with SRC. Interacts with EPHA2 (inactive form); participates to EPHA2 downstream signaling. Interacts with CD4; this interaction requires the presence of HIV-1 gp120. Interacts with EPHA1 (kinase activity-dependent) (By similarity). Interacts with SORBS1. Interacts with BCAR3. Interacts with RGNEF. Interacts with SHB. Interacts with PXN. Interacts with TGFB1I1.