PTK2

UniProt ID: Q05397
Organism: Homo sapiens
Review Status: DRAFT
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Gene Description

PTK2 encodes focal adhesion kinase (FAK), a cytoplasmic non-receptor protein tyrosine kinase with an N-terminal FERM domain, a central kinase domain, proline-rich regions and a C-terminal focal adhesion targeting (FAT) domain. Integrin engagement, and also growth factor and G protein-coupled receptor signalling, triggers autophosphorylation of Tyr397, which creates an SH2 docking site for Src family kinases. Src then phosphorylates the FAK activation loop and further sites that recruit Grb2, PI3K and p120RasGAP, forming a dual FAK-Src kinase complex. FAK is targeted to focal adhesions through FAT domain binding to paxillin and talin. It phosphorylates substrates such as p130Cas/NEDD9 and N-WASP and controls Rho-family GTPase GEFs and GAPs, so it regulates focal adhesion assembly and turnover, cell spreading, directional migration, proliferation and anchorage-dependent survival. A smaller nuclear pool uses the FERM domain as a scaffold that promotes Mdm2-dependent p53 degradation. A kinase-dead C-terminal isoform (FRNK) inhibits FAK signalling. FAK is essential for mouse embryonic development, including vascular, cardiac and neural development. It is part of an integrin adhesome that predates animals: canonical FAK with the full domain set is present in the filasterean Capsaspora owczarzaki, which also uses integrin-based adhesion to a substrate, whereas the choanoflagellates examined lack canonical FAK and have only a FAK-related kinase domain.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0001525 angiogenesis
TAS
PMID:20552554
The role of focal adhesion kinase in early development.
KEEP AS NON CORE
Summary: angiogenesis (TAS, review PMID:20552554 on FAK in early development).
Reason: The review summarises knockout and conditional-knockout data placing FAK in development of the placenta and of cardiovascular and other organ systems. FAK acts here through its general integrin-signalling, adhesion-turnover and migration functions in the relevant cell types, so angiogenesis is a downstream, animal-specific developmental context rather than a core function.
Supporting Evidence:
PMID:20552554
Various published data supported the role of the molecule in the development of the placenta, as well as of several organ systems, like the musculoskeletal, nervous, cardiovascular, genitourinary and respiratory organ systems
GO:0001725 stress fiber
IDA
PMID:24036928
Integrin-Ξ²5 and zyxin mediate formation of ventral stress fi...
KEEP AS NON CORE
Summary: stress fiber (IDA, PMID:24036928): phospho-Tyr861 FAK staining at the ends of TGF-beta-induced ventral stress fibers.
Reason: The image shows FAK at the termini of actin fibers, i.e. at the focal adhesions that anchor ventral stress fibers, rather than along the fiber itself. The curator observation is retained, but focal adhesion is the informative location.
Supporting Evidence:
PMID:24036928
TGF-Ξ²1 increased phospho-Tyr861-FAK staining at the ends of actin fibers in the control cells
GO:0001890 placenta development
TAS
PMID:20552554
The role of focal adhesion kinase in early development.
KEEP AS NON CORE
Summary: placenta development (TAS, review PMID:20552554 on FAK in early development).
Reason: The review summarises knockout and conditional-knockout data placing FAK in development of the placenta and of cardiovascular and other organ systems. FAK acts here through its general integrin-signalling, adhesion-turnover and migration functions in the relevant cell types, so placenta development is a downstream, animal-specific developmental context rather than a core function.
Supporting Evidence:
PMID:20552554
Various published data supported the role of the molecule in the development of the placenta, as well as of several organ systems, like the musculoskeletal, nervous, cardiovascular, genitourinary and respiratory organ systems
GO:0001952 regulation of cell-matrix adhesion
IEA
GO_REF:0000117
ACCEPT
Summary: regulation of cell-matrix adhesion (IEA, ARBA).
Reason: FAK controls the strength and turnover of integrin-ECM adhesions; FAK depletion reverses the increased cell-matrix adhesion caused by Coronin 1C loss in intestinal epithelial cells (PMID:19913511). The electronic term is consistent with the experimental picture.
Supporting Evidence:
PMID:19913511
FAK-mediated signaling is a critical downstream component, which mediates negative effects of Coronin 1C on both cell-matrix adhesion and motility of IECs
GO:0003007 heart morphogenesis
TAS
PMID:20552554
The role of focal adhesion kinase in early development.
KEEP AS NON CORE
Summary: heart morphogenesis (TAS, review PMID:20552554 on FAK in early development).
Reason: The review summarises knockout and conditional-knockout data placing FAK in development of the placenta and of cardiovascular and other organ systems. FAK acts here through its general integrin-signalling, adhesion-turnover and migration functions in the relevant cell types, so heart morphogenesis is a downstream, animal-specific developmental context rather than a core function.
Supporting Evidence:
PMID:20552554
Various published data supported the role of the molecule in the development of the placenta, as well as of several organ systems, like the musculoskeletal, nervous, cardiovascular, genitourinary and respiratory organ systems
GO:0003779 actin binding
IDA
PMID:16803572
Role of dystrophins and utrophins in platelet adhesion proce...
UNDECIDED
Summary: actin binding (IDA, PMID:16803572, platelet dystrophin/utrophin study).
Reason: Direct F-actin binding by FAK is not an established FAK activity; FAK is linked to actin indirectly through paxillin, talin and vinculin. The cached abstract of PMID:16803572 does not mention FAK at all, and the full text is not available, so the curator evidence cannot be checked. Not removed because it is an experimental annotation whose source we cannot read.
GO:0004672 protein kinase activity
IEA
GO_REF:0000002
ACCEPT
Summary: protein kinase activity (IEA, InterPro kinase-domain mapping).
Reason: Correct but general; FAK is a tyrosine kinase, captured more precisely by GO:0004715.
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
GO:0004713 protein tyrosine kinase activity
EXP
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
ACCEPT
Summary: protein tyrosine kinase activity (EXP, PMID:10655584): EphA2 study; FAK kinase/autophosphorylation assayed as part of integrin signalling.
Reason: FAK is a bona fide non-receptor protein tyrosine kinase that autophosphorylates Tyr397 and phosphorylates substrates such as Cas proteins and N-WASP. Core catalytic activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004713 protein tyrosine kinase activity
EXP
PMID:12235133
Phosphorylation of tyrosine 291 enhances the ability of WASp...
ACCEPT
Summary: protein tyrosine kinase activity (EXP, PMID:12235133): WASp Tyr291 phosphorylation study; full text not cached, curator recorded FAK kinase activity.
Reason: FAK is a bona fide non-receptor protein tyrosine kinase that autophosphorylates Tyr397 and phosphorylates substrates such as Cas proteins and N-WASP. Core catalytic activity.
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
GO:0004713 protein tyrosine kinase activity
EXP
PMID:12391143
Alternative splicing controls the mechanisms of FAK autophos...
ACCEPT
Summary: protein tyrosine kinase activity (EXP, PMID:12391143): autophosphorylation and kinase activity towards poly(Glu,Tyr) measured for rat FAK splice isoforms; the curator transferred it to the human protein, whose sequence is conserved.
Reason: FAK is a bona fide non-receptor protein tyrosine kinase that autophosphorylates Tyr397 and phosphorylates substrates such as Cas proteins and N-WASP. Core catalytic activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004713 protein tyrosine kinase activity
EXP
PMID:14676198
Focal adhesion kinase regulation of N-WASP subcellular local...
ACCEPT
Summary: protein tyrosine kinase activity (EXP, PMID:14676198): FAK directly phosphorylates N-WASP Tyr256.
Reason: FAK is a bona fide non-receptor protein tyrosine kinase that autophosphorylates Tyr397 and phosphorylates substrates such as Cas proteins and N-WASP. Core catalytic activity.
Supporting Evidence:
PMID:14676198
N-WASP is phosphorylated by FAK at a conserved tyrosine residue, Tyr(256)
GO:0004713 protein tyrosine kinase activity
IEA
GO_REF:0000120
ACCEPT
Summary: protein tyrosine kinase activity (IEA, combined InterPro/RHEA mapping).
Reason: Consistent with the experimentally established tyrosine kinase activity (core).
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-354073
ACCEPT
Summary: protein tyrosine kinase activity (TAS, Reactome R-HSA-354073 Autophosphorylation of PTK2 at Y397).
Reason: Reactome reactions in which FAK autophosphorylates Tyr397 or phosphorylates a substrate; consistent with the core tyrosine kinase activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-8874078
ACCEPT
Summary: protein tyrosine kinase activity (TAS, Reactome R-HSA-8874078 PTK2 autophosphorylates (downstream of MET)).
Reason: Reactome reactions in which FAK autophosphorylates Tyr397 or phosphorylates a substrate; consistent with the core tyrosine kinase activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-9625487
ACCEPT
Summary: protein tyrosine kinase activity (TAS, Reactome R-HSA-9625487 PTK2 autophosphorylates downstream of EGFR).
Reason: Reactome reactions in which FAK autophosphorylates Tyr397 or phosphorylates a substrate; consistent with the core tyrosine kinase activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-9861469
ACCEPT
Summary: protein tyrosine kinase activity (TAS, Reactome R-HSA-9861469 p-Y397-PTK2 phosphorylates CHUK).
Reason: Reactome reactions in which FAK autophosphorylates Tyr397 or phosphorylates a substrate; consistent with the core tyrosine kinase activity.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004715 non-membrane spanning protein tyrosine kinase activity
IBA
GO_REF:0000033
ACCEPT
Summary: non-membrane spanning protein tyrosine kinase activity (IBA, PTN002400754, FAK/PYK2 node).
Reason: PAINT placed this activity on the FAK/PYK2 (PTK2/PTK2B) ancestral node; human PTK2 appears among the experimentally annotated descendants, which is expected. FAK is a cytoplasmic, non-transmembrane tyrosine kinase, so this is the most precise MF term for the core activity.
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
GO:0004715 non-membrane spanning protein tyrosine kinase activity
IDA
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
ACCEPT
Summary: non-membrane spanning protein tyrosine kinase activity (IDA, PMID:10655584).
Reason: Experimental support for FAK tyrosine kinase activity in the EphA2/integrin study (UniProt cites this paper for FAK catalytic activity). Core.
Supporting Evidence:
PMID:10655584
this is followed by dephosphorylation of FAK and paxillin, and dissociation of the FAK-EphA2 complex
GO:0004715 non-membrane spanning protein tyrosine kinase activity
IDA
PMID:11331870
Regulation of the PH-domain-containing tyrosine kinase Etk b...
ACCEPT
Summary: non-membrane spanning protein tyrosine kinase activity (IDA, PMID:11331870).
Reason: FAK kinase activity and Tyr397 autophosphorylation were assayed in the Etk/BMX study; FAK regulates Etk through its FERM domain. Core activity.
Supporting Evidence:
PMID:11331870
The activation of Etk by extracellular matrix proteins is regulated by FAK through an interaction between the PH domain of Etk and the FERM domain of FAK
GO:0004715 non-membrane spanning protein tyrosine kinase activity
IEA
GO_REF:0000120
ACCEPT
Summary: non-membrane spanning protein tyrosine kinase activity (IEA, ARBA/EC 2.7.10.2).
Reason: Consistent with experimental data (core).
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
GO:0004725 protein tyrosine phosphatase activity
IMP
PMID:9360983
Tyrosine phosphorylation of Crk-associated substrates by foc...
MODIFY
Summary: protein tyrosine phosphatase activity (IMP, PMID:9360983).
Reason: PMID:9360983 shows that FAK directly phosphorylates Cas proteins (p130Cas, Cas-L/NEDD9) at the YDYVHL motif, i.e. a kinase activity. FAK has no phosphatase domain, and no study reports phosphatase activity for it, so the phosphatase term contradicts both the paper and the domain architecture. This looks like a term-selection slip; the evidence supports non-membrane spanning protein tyrosine kinase activity.
Supporting Evidence:
PMID:9360983
FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
GO:0005178 integrin binding
IPI
PMID:26763945
Focal Adhesion Kinase Regulates Fibroblast Migration via Int...
ACCEPT
Summary: integrin binding (IPI, PMID:26763945, with ITGB1).
Reason: FAK associates with integrin beta1 in fibroblasts on fibronectin, and this association is upstream of FAK activation. Direct binding of the FAK FERM/N-terminus to integrin beta cytoplasmic tails is a long-standing part of the FAK model. Core binding activity at adhesions.
Supporting Evidence:
PMID:26763945
integrin Ξ²1 binding to FN is necessary for FAK association with integrin Ξ²1 and subsequent FAK activation
GO:0005515 protein binding
IPI
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
REMOVE
Summary: protein binding (IPI, PMID:10655584) with EPHA2 (P29317).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. EphA2 is constitutively associated with FAK in resting cells and dissociates after ephrin-A1 stimulation; the binding mode is not defined.
Supporting Evidence:
PMID:10655584
EphA2 is constitutively associated with focal-adhesion kinase (FAK) in resting cells
GO:0005515 protein binding
IPI
PMID:10822899
Protein complexes involving alpha v beta 3 integrins, nonmus...
REMOVE
Summary: protein binding (IPI, PMID:10822899) with MYH9 (P35579).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation of FAK with nonmuscle myosin heavy chain-A in thrombospondin-treated smooth muscle cells; likely an indirect complex.
GO:0005515 protein binding
IPI
PMID:11331870
Regulation of the PH-domain-containing tyrosine kinase Etk b...
MODIFY
Summary: protein binding (IPI, PMID:11331870) with BMX/Etk (P51813).
Reason: The paper defines the binding mode: the FAK FERM domain binds the Etk PH domain, and this interaction is required for Etk activation by ECM. PH domain binding is a specific, informative replacement. Non-core (Etk is a context-specific partner).
Proposed replacements: PH domain binding
Supporting Evidence:
PMID:11331870
The activation of Etk by extracellular matrix proteins is regulated by FAK through an interaction between the PH domain of Etk and the FERM domain of FAK
GO:0005515 protein binding
IPI
PMID:14688263
TRIP6 enhances lysophosphatidic acid-induced cell migration ...
REMOVE
Summary: protein binding (IPI, PMID:14688263) with TRIP6 (Q15654).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. TRIP6 associates with focal complex components including FAK after LPA stimulation; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:15657067
Phosphotyrosine signaling networks in epidermal growth facto...
REMOVE
Summary: protein binding (IPI, PMID:15657067) with EGFR (P00533).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Phosphotyrosine proteomics; FAK was in direct or indirect complexes with EGFR.
Supporting Evidence:
PMID:15657067
EGF receptors in HN5 cells were shown to form direct or indirect physical interactions with additional kinases including ACK1, focal adhesion kinase (FAK), Pyk2, Yes, EphA2, and EphB4
GO:0005515 protein binding
IPI
PMID:15855171
Direct interaction of the N-terminal domain of focal adhesio...
MODIFY
Summary: protein binding (IPI, PMID:15855171) with TP53 (P04637).
Reason: The FAK N-terminal (FERM) region binds the p53 N-terminal transactivation domain directly; the specific term p53 binding captures this. Non-core: a nuclear scaffolding function of FAK described in animal cells.
Proposed replacements: p53 binding
Supporting Evidence:
PMID:15855171
the N-terminal fragment of FAK directly interacts with the N-terminal transactivation domain of p53
GO:0005515 protein binding
IPI
PMID:16291744
Phosphorylated alpha-actinin and protein-tyrosine phosphatas...
MODIFY
Summary: protein binding (IPI, PMID:16291744) with SRC (P12931).
Reason: The paper (and the field) define the FAK-Src interaction: autophosphorylated FAK Tyr397 is the docking site for the Src SH2 domain. SH2 domain binding is the informative replacement and is a core part of FAK signalling.
Proposed replacements: SH2 domain binding
Supporting Evidence:
PMID:16291744
Phosphorylation at Tyr-397 activates FAK and creates a binding site for Src family kinases
GO:0005515 protein binding
IPI
PMID:16354697
Focal adhesion kinase is a substrate and downstream effector...
REMOVE
Summary: protein binding (IPI, PMID:16354697) with PTPN11/SHP2 (Q06124).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. FAK is a substrate of SHP2 complexed with H. pylori CagA; an enzyme-substrate contact is not a FAK binding function.
Supporting Evidence:
PMID:16354697
The decrease in phosphorylated FAK is due to SHP-2-mediated dephosphorylation of FAK at the activating phosphorylation sites
GO:0005515 protein binding
IPI
PMID:16803572
Role of dystrophins and utrophins in platelet adhesion proce...
REMOVE
Summary: protein binding (IPI, PMID:16803572) with UTRN (P46939).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Platelet dystrophin/utrophin complex study; FAK not mentioned in the cached abstract.
GO:0005515 protein binding
IPI
PMID:16966330
Phosphorylation of Tyr1214 within VEGFR-2 triggers the recru...
REMOVE
Summary: protein binding (IPI, PMID:16966330) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. VEGFR-2 study in which c-Src permits FAK activation; the FAK-Src SH2 docking interaction is captured by the SH2 domain binding replacement on other rows.
GO:0005515 protein binding
IPI
PMID:17525734
p140Cap protein suppresses tumour cell properties, regulatin...
REMOVE
Summary: protein binding (IPI, PMID:17525734) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. p140Cap/Csk study; FAK-Src association is incidental. FAK-Src docking is captured by SH2 domain binding elsewhere.
GO:0005515 protein binding
IPI
PMID:18256281
A novel Cas family member, HEPL, regulates FAK and cell spre...
REMOVE
Summary: protein binding (IPI, PMID:18256281) with NEDD9 (Q14511).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Cas family proteins bind the FAK proline-rich region through their SH3 domains; the paper is about the Cas family member HEPL and does not itself define the mode in the cached abstract.
Supporting Evidence:
PMID:18256281
HEPL maintains Cas family function in localization to focal adhesions, as well as regulation of FAK activity, focal adhesion integrity, and cell spreading
GO:0005515 protein binding
IPI
PMID:18256281
A novel Cas family member, HEPL, regulates FAK and cell spre...
REMOVE
Summary: protein binding (IPI, PMID:18256281) with CASS4/HEPL (Q9NQ75).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. HEPL regulates FAK activity at focal adhesions; binding mode not defined in the cached abstract.
Supporting Evidence:
PMID:18256281
HEPL maintains Cas family function in localization to focal adhesions, as well as regulation of FAK activity, focal adhesion integrity, and cell spreading
GO:0005515 protein binding
IPI
PMID:18497331
The LIM protein leupaxin is enriched in smooth muscle and fu...
REMOVE
Summary: protein binding (IPI, PMID:18497331) with LPXN (O60711).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Leupaxin was found in a screen for FAK binding partners; paxillin-family LD motifs bind the FAK FAT domain, but GO has no LD-motif binding term.
Supporting Evidence:
PMID:18497331
we identified leupaxin in a screen for focal adhesion kinase binding partners in aortic smooth muscle
GO:0005515 protein binding
IPI
PMID:18560762
Mobility of TOAC spin-labelled peptides binding to the Src S...
MODIFY
Summary: protein binding (IPI, PMID:18560762) with mouse Src (P05480).
Reason: NMR study of a FAK proline-rich peptide bound to the Src SH3 domain; the binding mode is defined, so SH3 domain binding is the informative replacement.
Proposed replacements: SH3 domain binding
Supporting Evidence:
PMID:18560762
the SH3 domain binds weakly and transiently to proline-rich peptides from FAK
GO:0005515 protein binding
IPI
PMID:18835089
Inhibition of T24 human bladder carcinoma cell migration by ...
REMOVE
Summary: protein binding (IPI, PMID:18835089) with PTPN23/HD-PTP (Q9H3S7).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. HD-PTP binds FAK and is a FAK substrate; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:19494199
Functional consequences of interactions between FAK and epit...
REMOVE
Summary: protein binding (IPI, PMID:19494199) with EMP2 (P54851).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation of EMP2 with FAK in ARPE-19 cells; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:19732724
The Tensin-3 protein, including its SH2 domain, is phosphory...
REMOVE
Summary: protein binding (IPI, PMID:19732724) with TNS3 (Q68CZ2).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Tensin-3 study; FAK interaction is not defined in the cached abstract.
GO:0005515 protein binding
IPI
PMID:19857493
Role of p53/FAK association and p53Ser46 phosphorylation in ...
MODIFY
Summary: protein binding (IPI, PMID:19857493) with TP53 (P04637).
Reason: Nuclear FAK maintains a p53/FAK interaction in oesophageal carcinoma cells; p53 binding is the specific replacement (non-core, animal nuclear scaffold function).
Proposed replacements: p53 binding
Supporting Evidence:
PMID:19857493
both wt and mt HOSCC cells translocate FAK into the nucleus and maintain the p53/FAK interaction post STS treatment
GO:0005515 protein binding
IPI
PMID:19917054
LIM domain-containing adaptor, leupaxin, localizes in focal ...
REMOVE
Summary: protein binding (IPI, PMID:19917054) with mouse leupaxin (Q99N69).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Leupaxin LD3 motif is required for stable FAK association; no specific GO term for LD-motif binding.
Supporting Evidence:
PMID:19917054
Leupaxin's LD3 motif, which is critical for stable association with FAK, was dispensable for leupaxin's suppressive ability
GO:0005515 protein binding
IPI
PMID:20473329
SIRPalpha1 receptors interfere with the EGFRvIII signalosome...
REMOVE
Summary: protein binding (IPI, PMID:20473329) with EGFR (P00533).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. FAK recruitment to the EGFRvIII/Grb2/Sos-1/Gab1/SHP-2 signalosome in glioblastoma cells, measured by co-immunoprecipitation; multi-protein complex, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:20473329
SIRPalpha1 receptors interfere with the EGFRvIII signalosome...
REMOVE
Summary: protein binding (IPI, PMID:20473329) with GRB2 (P62993).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. FAK recruitment to the EGFRvIII/Grb2/Sos-1/Gab1/SHP-2 signalosome in glioblastoma cells, measured by co-immunoprecipitation; multi-protein complex, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:20473329
SIRPalpha1 receptors interfere with the EGFRvIII signalosome...
REMOVE
Summary: protein binding (IPI, PMID:20473329) with PTPN11/SHP2 (Q06124).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. FAK recruitment to the EGFRvIII/Grb2/Sos-1/Gab1/SHP-2 signalosome in glioblastoma cells, measured by co-immunoprecipitation; multi-protein complex, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:20576130
Activated networking of platelet activating factor receptor ...
REMOVE
Summary: protein binding (IPI, PMID:20576130) with PTAFR (P25105).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation in BRCA1-mutant ovarian epithelial cells; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:20576130
Activated networking of platelet activating factor receptor ...
REMOVE
Summary: protein binding (IPI, PMID:20576130) with STAT1 (P42224).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation in BRCA1-mutant ovarian epithelial cells; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21034468
Cyanidin-3-glucoside inhibits ethanol-induced invasion of br...
REMOVE
Summary: protein binding (IPI, PMID:21034468) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation in breast cancer cells treated with ethanol and cyanidin-3-glucoside; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21034468
Cyanidin-3-glucoside inhibits ethanol-induced invasion of br...
REMOVE
Summary: protein binding (IPI, PMID:21034468) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation in breast cancer cells treated with ethanol and cyanidin-3-glucoside; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21034468
Cyanidin-3-glucoside inhibits ethanol-induced invasion of br...
REMOVE
Summary: protein binding (IPI, PMID:21034468) with BCAR1 (P56945).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Co-immunoprecipitation in breast cancer cells treated with ethanol and cyanidin-3-glucoside; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21266176
Linker length dependent binding of a focal adhesion kinase d...
MODIFY
Summary: protein binding (IPI, PMID:21266176) with mouse Src (P05480).
Reason: NMR and calorimetry of a FAK peptide containing both the SH3-binding proline-rich motif and the SH2-binding pTyr397 motif bound to the Src SH3-SH2 domains. Both SH2 domain binding and SH3 domain binding are defined by the paper.
Supporting Evidence:
PMID:21266176
The interaction between a peptide encompassing the SH3 and SH2 binding motifs of focal adhesion kinase (FAK) and the Src SH3-SH2 domains has been investigated with NMR spectroscopy and calorimetry
GO:0005515 protein binding
IPI
PMID:21383007
Bit-1 mediates integrin-dependent cell survival through acti...
REMOVE
Summary: protein binding (IPI, PMID:21383007) with PTRH2/Bit-1 (Q9Y3E5).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Bit-1 survival signalling depends on FAK; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21741599
Proinvasion metastasis drivers in early-stage melanoma are o...
REMOVE
Summary: protein binding (IPI, PMID:21741599) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Melanoma metastasis-driver study; FAK-paxillin association incidental. The FAK FAT domain-paxillin LD interaction has no specific GO MF term.
GO:0005515 protein binding
IPI
PMID:21900206
A directed protein interaction network for investigating int...
REMOVE
Summary: protein binding (IPI, PMID:21900206) with TGFB1I1/Hic-5 (O43294).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. High-throughput yeast two-hybrid signalling network; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21900206
A directed protein interaction network for investigating int...
REMOVE
Summary: protein binding (IPI, PMID:21900206) with LPXN (O60711).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. High-throughput yeast two-hybrid signalling network; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:21900206
A directed protein interaction network for investigating int...
REMOVE
Summary: protein binding (IPI, PMID:21900206) with GRB2 (P62993).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. High-throughput yeast two-hybrid signalling network; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:22270917
FAK promotes recruitment of talin to nascent adhesions to co...
REMOVE
Summary: protein binding (IPI, PMID:22270917) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. The paper is about FAK binding talin (captured by the talin binding replacement on row PMID:9786953); the paxillin contact is not characterised.
Supporting Evidence:
PMID:22270917
The direct binding site for talin on FAK was identified, and a point mutation in FAK (E1015A) prevented talin association and talin localization to nascent adhesions
GO:0005515 protein binding
IPI
PMID:22402981
Integrin/Fak/Src-mediated regulation of cell survival and an...
REMOVE
Summary: protein binding (IPI, PMID:22402981) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. beta1 integrin/Fak/Src/PI3-K complexes in intestinal crypt cells; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:22402981
Integrin/Fak/Src-mediated regulation of cell survival and an...
REMOVE
Summary: protein binding (IPI, PMID:22402981) with PIK3R3 (Q92569).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. beta1 integrin/Fak/Src/PI3-K complexes in intestinal crypt cells; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:23065768
Activation of rapid oestrogen signalling in aggressive human...
REMOVE
Summary: protein binding (IPI, PMID:23065768) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Proximity ligation assay of ERalpha/Src/PI3K complexes; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:23574715
The novel actin/focal adhesion-associated protein MISP is in...
REMOVE
Summary: protein binding (IPI, PMID:23574715) with MISP (Q8IVT2).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. MISP co-precipitates with FAK; binding mode not defined.
GO:0005515 protein binding
IPI
PMID:23602568
The protein interaction landscape of the human CMGC kinase g...
REMOVE
Summary: protein binding (IPI, PMID:23602568) with Q96SB4 (SRPK1).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. High-throughput AP-MS of CMGC kinase complexes.
GO:0005515 protein binding
IPI
PMID:24658140
The mammalian-membrane two-hybrid assay (MaMTH) for probing ...
REMOVE
Summary: protein binding (IPI, PMID:24658140) with EGFR (P00533).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. MaMTH membrane two-hybrid screen.
GO:0005515 protein binding
IPI
PMID:25193659
The Chlamydia effector TarP mimics the mammalian leucine-asp...
REMOVE
Summary: protein binding (IPI, PMID:25193659) with Chlamydia caviae TarP (Q824H6).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. TarP mimics the paxillin LD2 motif to recruit FAK; host-pathogen interaction, no specific GO term for LD-motif binding.
Supporting Evidence:
PMID:25193659
FAK recruitment was via binding to a domain within the virulence factor TarP that mimicked the LD2 motif of the FAK binding partner paxillin
GO:0005515 protein binding
IPI
PMID:25241761
Using an in situ proximity ligation assay to systematically ...
REMOVE
Summary: protein binding (IPI, PMID:25241761) with TP53 (P04637).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Systematic in situ proximity ligation screen; proximity, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:25241761
Using an in situ proximity ligation assay to systematically ...
REMOVE
Summary: protein binding (IPI, PMID:25241761) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Systematic in situ proximity ligation screen; proximity, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:25241761
Using an in situ proximity ligation assay to systematically ...
REMOVE
Summary: protein binding (IPI, PMID:25241761) with STAT1 (P42224).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Systematic in situ proximity ligation screen; proximity, binding mode not defined.
GO:0005515 protein binding
IPI
PMID:25795725
c-Abl mediated tyrosine phosphorylation of paxillin regulate...
REMOVE
Summary: protein binding (IPI, PMID:25795725) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. c-Abl/paxillin endothelial study; FAK-paxillin association incidental.
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with HCK isoform (P08631-2).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with PTPN6 isoform (P29350-3).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with CRK (P46108).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with GRB7 (Q14451).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with PIK3R3 (Q92569).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:25814554
Phospho-tyrosine dependent protein-protein interaction netwo...
REMOVE
Summary: protein binding (IPI, PMID:25814554) with SH2D2A (Q9NP31).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Large-scale phosphotyrosine-dependent yeast two-hybrid screen. The partner has an SH2 domain, but the paper reports that most pY-dependent interactions in the screen are not mediated by canonical motifs, so SH2 domain binding cannot be assigned row by row.
Supporting Evidence:
PMID:25814554
About one-sixth of the interactions are mediated by known linear sequence binding motifs while the majority of pY-PPIs are mediated by other linear epitopes or governed by alternative recognition modes
GO:0005515 protein binding
IPI
PMID:27178753
Activation of focal adhesion kinase through an interaction w...
MODIFY
Summary: protein binding (IPI, PMID:27178753) with ITGB4 (P16144).
Reason: Activated beta4 integrin binds FAK and induces Tyr397 phosphorylation; integrin binding is the specific replacement, consistent with the ITGB1 integrin binding row.
Proposed replacements: integrin binding
Supporting Evidence:
PMID:27178753
Activated Ξ²4 integrin interacts with FAK and subsequently induces FAK phosphorylation at Tyr397
GO:0005515 protein binding
IPI
PMID:28514442
Architecture of the human interactome defines protein commun...
REMOVE
Summary: protein binding (IPI, PMID:28514442) with LPXN (O60711).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. BioPlex AP-MS interactome.
GO:0005515 protein binding
IPI
PMID:31413325
HENA, heterogeneous network-based data set for Alzheimer's d...
REMOVE
Summary: protein binding (IPI, PMID:31413325) with FYN (P06241).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. HENA Alzheimer network dataset compilation.
GO:0005515 protein binding
IPI
PMID:31980649
Extensive rewiring of the EGFR network in colorectal cancer ...
REMOVE
Summary: protein binding (IPI, PMID:31980649) with EGFR (P00533).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. EGFR-network AP-MS in colorectal cancer cells.
GO:0005515 protein binding
IPI
PMID:31980649
Extensive rewiring of the EGFR network in colorectal cancer ...
REMOVE
Summary: protein binding (IPI, PMID:31980649) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. EGFR-network AP-MS in colorectal cancer cells.
GO:0005515 protein binding
IPI
PMID:32707033
Kinase Interaction Network Expands Functional and Disease Ro...
REMOVE
Summary: protein binding (IPI, PMID:32707033) with TGFB1I1 (O43294).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Kinase interaction network (high-throughput AP-MS/BioID).
GO:0005515 protein binding
IPI
PMID:32707033
Kinase Interaction Network Expands Functional and Disease Ro...
REMOVE
Summary: protein binding (IPI, PMID:32707033) with FYN (P06241).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Kinase interaction network (high-throughput AP-MS/BioID).
GO:0005515 protein binding
IPI
PMID:32707033
Kinase Interaction Network Expands Functional and Disease Ro...
REMOVE
Summary: protein binding (IPI, PMID:32707033) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Kinase interaction network (high-throughput AP-MS/BioID).
GO:0005515 protein binding
IPI
PMID:32707033
Kinase Interaction Network Expands Functional and Disease Ro...
REMOVE
Summary: protein binding (IPI, PMID:32707033) with Q96SB4 (SRPK1).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Kinase interaction network (high-throughput AP-MS/BioID).
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
REMOVE
Summary: protein binding (IPI, PMID:32814053) with SRC (P12931).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Neurodegenerative-disease yeast two-hybrid interactome.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
REMOVE
Summary: protein binding (IPI, PMID:33961781) with LPXN (O60711).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Dual proteome-scale BioPlex networks.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
REMOVE
Summary: protein binding (IPI, PMID:40205054) with LPXN (O60711).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Multimodal cell-map interactome.
GO:0005515 protein binding
IPI
PMID:7561682
Direct association of pp125FAK with paxillin, the focal adhe...
REMOVE
Summary: protein binding (IPI, PMID:7561682) with CRK (P46108).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. The paper concerns paxillin; CRK association not characterised.
GO:0005515 protein binding
IPI
PMID:7561682
Direct association of pp125FAK with paxillin, the focal adhe...
REMOVE
Summary: protein binding (IPI, PMID:7561682) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. The FAK C-terminal (FAT) region binds paxillin directly and this targets FAK to focal adhesions; an important interaction, but GO has no paxillin-binding or LD-motif-binding MF term. The consequence is captured by focal adhesion localisation.
Supporting Evidence:
PMID:7561682
These findings strongly suggest that pp125FAK is localized to focal adhesions by the direct association with paxillin
GO:0005515 protein binding
IPI
PMID:7597091
Stimulation of human monocytes with macrophage colony-stimul...
MODIFY
Summary: protein binding (IPI, PMID:7597091) with GRB2 (P62993).
Reason: Tyrosine-phosphorylated FAK (pY925, pYENV) binds the GRB2 SH2 domain in M-CSF-stimulated monocytes; SH2 domain binding is the defined mode.
Proposed replacements: SH2 domain binding
Supporting Evidence:
PMID:7597091
tyrosine-phosphorylated pp125FAK directly interacts with the SH2 domain of Grb2
GO:0005515 protein binding
IPI
PMID:8649368
Introduction of p130cas signaling complex formation upon int...
REMOVE
Summary: protein binding (IPI, PMID:8649368) with BCAR1 (P56945).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Integrin-induced p130Cas signalling complexes; FAK-Cas association, mode not defined in the cached abstract.
GO:0005515 protein binding
IPI
PMID:8649368
Introduction of p130cas signaling complex formation upon int...
REMOVE
Summary: protein binding (IPI, PMID:8649368) with BCAR1 (Q6P5Z4).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Integrin-induced p130Cas signalling complexes; FAK-Cas association, mode not defined in the cached abstract.
GO:0005515 protein binding
IPI
PMID:9285683
Association of PTP-PEST with the SH3 domain of p130cas; a no...
REMOVE
Summary: protein binding (IPI, PMID:9285683) with BCAR1 (P56945).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. PTP-PEST/p130Cas SH3 study; FAK-Cas interaction not characterised in the cached abstract.
GO:0005515 protein binding
IPI
PMID:9756887
Interaction of Hic-5, A senescence-related protein, with foc...
REMOVE
Summary: protein binding (IPI, PMID:9756887) with TGFB1I1/Hic-5 (O43294).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Hic-5 binds FAK through its N-terminal LD-motif region; no specific GO MF term for this paxillin-family interaction.
Supporting Evidence:
PMID:9756887
Hic-5 binds to focal adhesion kinase (FAK) by its N-terminal domain
GO:0005515 protein binding
IPI
PMID:9756887
Interaction of Hic-5, A senescence-related protein, with foc...
REMOVE
Summary: protein binding (IPI, PMID:9756887) with PXN (P49023).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Hic-5 binds FAK through its N-terminal LD-motif region; no specific GO MF term for this paxillin-family interaction.
Supporting Evidence:
PMID:9756887
Hic-5 binds to focal adhesion kinase (FAK) by its N-terminal domain
GO:0005515 protein binding
IPI
PMID:9756887
Interaction of Hic-5, A senescence-related protein, with foc...
REMOVE
Summary: protein binding (IPI, PMID:9756887) with mouse Hic-5 (Q62219).
Reason: Generic protein binding (GO:0005515) says nothing about molecular function and is removed under the repository policy. REMOVE does not mean the interaction is false. Hic-5 binds FAK through its N-terminal LD-motif region; no specific GO MF term for this paxillin-family interaction.
Supporting Evidence:
PMID:9756887
Hic-5 binds to focal adhesion kinase (FAK) by its N-terminal domain
GO:0005515 protein binding
IPI
PMID:9786953
Layilin, a novel talin-binding transmembrane protein homolog...
MODIFY
Summary: protein binding (IPI, PMID:9786953) with chicken talin-1 (P54939).
Reason: The layilin paper maps a talin N-terminal region that overlaps the FAK binding site on talin. FAK-talin binding is direct (the FAK FAT domain E1015 site, PMID:22270917) and has its own term, talin binding. Non-core in the strict sense but part of the adhesion scaffolding role.
Proposed replacements: talin binding
Supporting Evidence:
PMID:9786953
This region overlaps a binding site for focal adhesion kinase
PMID:22270917
The direct binding site for talin on FAK was identified, and a point mutation in FAK (E1015A) prevented talin association and talin localization to nascent adhesions
GO:0005524 ATP binding
IEA
GO_REF:0000002
ACCEPT
Summary: ATP binding (IEA, InterPro kinase domain).
Reason: Required for the kinase activity; correct.
GO:0005634 nucleus
EXP
PMID:18206965
Nuclear FAK promotes cell proliferation and survival through...
KEEP AS NON CORE
Summary: nucleus (EXP, PMID:18206965).
Reason: FERM-dependent nuclear accumulation of FAK, enhanced by loss of adhesion or staurosporine, where FAK scaffolds Mdm2-dependent p53 degradation. A real but secondary pool.
Supporting Evidence:
PMID:18206965
Staurosporine or loss of cell adhesion enhanced FERM-dependent FAK nuclear accumulation
GO:0005634 nucleus
IDA
PMID:15855171
Direct interaction of the N-terminal domain of focal adhesio...
KEEP AS NON CORE
Summary: nucleus (IDA, PMID:15855171).
Reason: Co-localization of FAK with p53; nuclear FAK is a minor, stress-induced pool.
Supporting Evidence:
PMID:15855171
FAK physically and specifically interacts with p53 as demonstrated by pull-down, immunoprecipitation, and co-localization analyses
GO:0005634 nucleus
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: nucleus (IEA, UniProt SubCell).
Reason: Consistent with experimental nuclear FAK; non-core.
GO:0005737 cytoplasm
EXP
PMID:15855171
Direct interaction of the N-terminal domain of focal adhesio...
ACCEPT
Summary: cytoplasm (EXP, PMID:15855171).
Reason: FAK is a cytoplasmic kinase; the bulk pool is cytosolic and it is recruited to focal adhesions on the cytoplasmic face of the plasma membrane.
Supporting Evidence:
PMID:15855171
FAK physically and specifically interacts with p53 as demonstrated by pull-down, immunoprecipitation, and co-localization analyses
GO:0005737 cytoplasm
EXP
PMID:18078954
Structural basis for the interaction between focal adhesion ...
ACCEPT
Summary: cytoplasm (EXP, PMID:18078954).
Reason: FAK is a cytoplasmic kinase; the bulk pool is cytosolic and it is recruited to focal adhesions on the cytoplasmic face of the plasma membrane.
Supporting Evidence:
PMID:18078954
the focal adhesion targeting (FAT) domain of FAK binds specifically to the CD4 endocytosis motif in vitro
GO:0005737 cytoplasm
EXP
PMID:18206965
Nuclear FAK promotes cell proliferation and survival through...
ACCEPT
Summary: cytoplasm (EXP, PMID:18206965).
Reason: FAK is a cytoplasmic kinase; the bulk pool is cytosolic and it is recruited to focal adhesions on the cytoplasmic face of the plasma membrane.
Supporting Evidence:
PMID:18206965
These studies define a scaffolding role for nuclear FAK in facilitating cell survival through enhanced p53 degradation under conditions of cellular stress
GO:0005737 cytoplasm
EXP
PMID:18256281
A novel Cas family member, HEPL, regulates FAK and cell spre...
ACCEPT
Summary: cytoplasm (EXP, PMID:18256281).
Reason: FAK is a cytoplasmic kinase; the bulk pool is cytosolic and it is recruited to focal adhesions on the cytoplasmic face of the plasma membrane.
Supporting Evidence:
PMID:18256281
HEPL maintains Cas family function in localization to focal adhesions, as well as regulation of FAK activity, focal adhesion integrity, and cell spreading
GO:0005737 cytoplasm
IEA
GO_REF:0000120
ACCEPT
Summary: cytoplasm (IEA, ARBA/SubCell).
Reason: Correct.
GO:0005813 centrosome
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: centrosome (IEA, UniProt SubCell; by similarity).
Reason: UniProt records centrosome localisation by similarity only; FAK at centrosomes is reported in some cell types but is not part of its core adhesion role.
GO:0005829 cytosol
IDA
GO_REF:0000052
ACCEPT
Summary: cytosol (IDA, GO_REF:0000052, HPA immunofluorescence).
Reason: The unbound FAK pool is cytosolic.
GO:0005829 cytosol
IDA
PMID:15855171
Direct interaction of the N-terminal domain of focal adhesio...
ACCEPT
Summary: cytosol (IDA, PMID:15855171).
Reason: The unbound FAK pool is cytosolic.
Supporting Evidence:
PMID:15855171
FAK physically and specifically interacts with p53 as demonstrated by pull-down, immunoprecipitation, and co-localization analyses
GO:0005829 cytosol
TAS
Reactome:R-HSA-201634
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-201634).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-2197698
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-2197698).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-354066
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-354066).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-354073
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-354073).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-354087
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-354087).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-354124
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-354124).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-354165
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-354165).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-372693
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-372693).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-372697
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-372697).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-372705
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-372705).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-373716
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-373716).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-374701
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-374701).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-392051
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-392051).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-392053
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-392053).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-392054
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-392054).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-3928592
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-3928592).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-3928598
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-3928598).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-418850
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-418850).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-418856
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-418856).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-418858
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-418858).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-418868
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-418868).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-418874
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-418874).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-4420083
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-4420083).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218640
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218640).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218642
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218642).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218643
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218643).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218645
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218645).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218809
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218809).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218811
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218811).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218820
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218820).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218822
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218822).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218826
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218826).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218830
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218830).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218838
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218838).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218839
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218839).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5218851
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5218851).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-5672965
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-5672965).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-8874078
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-8874078).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-8874079
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-8874079).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-8874080
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-8874080).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-8874082
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-8874082).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-8874083
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-8874083).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9625482
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-9625482).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9625487
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-9625487).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9632412
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-9632412).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9861469
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-9861469).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9861484
ACCEPT
Summary: cytosol (TAS, Reactome Reactome:R-HSA-9861484).
Reason: Reactome places FAK (PTK2) in the cytosol for this reaction; FAK is a cytosolic kinase recruited to adhesion sites, so the location is correct.
GO:0005856 cytoskeleton
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: cytoskeleton (IEA, UniProt SubCell).
Reason: FAK partitions with the detergent-insoluble cytoskeletal fraction when engaged at adhesions; focal adhesion is the informative term.
GO:0005856 cytoskeleton
TAS
PMID:10801330
Tyrosine dephosphorylation, but not phosphorylation, of p130...
KEEP AS NON CORE
Summary: cytoskeleton (TAS, PMID:10801330, platelets).
Reason: FAK translocates to the cytoskeletal fraction during platelet aggregation; fractionation-based, non-core.
Supporting Evidence:
PMID:10801330
when FAK translocated to the cytoskeletal fraction
GO:0005886 plasma membrane
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: plasma membrane (IBA, PTN002521457, broad tyrosine kinase node).
Reason: PAINT placed plasma membrane on a deep node shared by Src, Abl, Tec and FAK families. FAK has no lipid anchor or transmembrane segment; it is a peripheral protein on the cytoplasmic face of the membrane at integrin adhesions (UniProt, by similarity to mouse). The node placement is defensible for the family, but for FAK the informative location is focal adhesion.
GO:0005886 plasma membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: plasma membrane (IEA, UniProt SubCell).
Reason: Peripheral membrane association at adhesions; non-core relative to focal adhesion.
GO:0005886 plasma membrane
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: plasma membrane (ISS from mouse Q00944).
Reason: Peripheral membrane association at adhesions; non-core relative to focal adhesion.
GO:0005925 focal adhesion
IBA
GO_REF:0000033
ACCEPT
Summary: focal adhesion (IBA, PTN002400754, FAK/PYK2 node).
Reason: Focal adhesion targeting via the FAT domain is the defining feature of the family; human PTK2 is among the experimental descendants. Core location.
Supporting Evidence:
PMID:7561682
These findings strongly suggest that pp125FAK is localized to focal adhesions by the direct association with paxillin
GO:0005925 focal adhesion
IDA
GO_REF:0000052
ACCEPT
Summary: focal adhesion (IDA, GO_REF:0000052, HPA immunofluorescence).
Reason: Core location.
GO:0005925 focal adhesion
IDA
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
ACCEPT
Summary: focal adhesion (IDA, PMID:10655584).
Reason: FAK localises to focal adhesions (UniProt cites this paper for the location). Core.
Supporting Evidence:
PMID:10655584
this is followed by dephosphorylation of FAK and paxillin, and dissociation of the FAK-EphA2 complex
GO:0005925 focal adhesion
IDA
PMID:15855171
Direct interaction of the N-terminal domain of focal adhesio...
ACCEPT
Summary: focal adhesion (IDA, PMID:15855171).
Reason: Core location (UniProt cites this paper).
GO:0005925 focal adhesion
IDA
PMID:23574715
The novel actin/focal adhesion-associated protein MISP is in...
ACCEPT
Summary: focal adhesion (IDA, PMID:23574715).
Reason: Autophosphorylated FAK Y397 used as a focal adhesion marker in MISP study. Core.
Supporting Evidence:
PMID:23574715
Co-immunostaining of MISP with the focal adhesion markers paxillin (middle panel) and autophosphorylated focal adhesion kinase (FAK Y397, lower panel) reveals that fiber-like MISP structures often end in focal adhesions
GO:0005925 focal adhesion
IEA
GO_REF:0000120
ACCEPT
Summary: focal adhesion (IEA, combined InterPro FAT domain/ARBA).
Reason: Core.
GO:0005938 cell cortex
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: cell cortex (IEA, UniProt SubCell).
Reason: Correct but less informative than focal adhesion.
GO:0007172 signal complex assembly
IEA
GO_REF:0000002
ACCEPT
Summary: signal complex assembly (IEA, InterPro FAT domain).
Reason: Autophosphorylated FAK nucleates FAK-Src signalling complexes and recruits adaptors such as Cas, Grb2 and PI3K; assembly of these complexes is a central part of what FAK does.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
PMID:16919435
Activated FAK-Src functions to promote cell motility, cell cycle progression and cell survival
GO:0007173 epidermal growth factor receptor signaling pathway
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: epidermal growth factor receptor signaling pathway (IBA, PTN001975314).
Reason: FAK participates in growth-factor receptor signalling (e.g. EGFR-dependent Y397 autophosphorylation, Reactome R-HSA-9625487), but this is one of many receptor contexts; non-core.
GO:0007179 transforming growth factor beta receptor signaling pathway
IDA
PMID:24036928
Integrin-Ξ²5 and zyxin mediate formation of ventral stress fi...
KEEP AS NON CORE
Summary: transforming growth factor beta receptor signaling pathway (IDA, PMID:24036928).
Reason: FAK phospho-Tyr861 increases with TGF-beta-induced ventral stress fiber formation in an integrin-beta5-dependent manner; FAK acts in the integrin arm of this response, so TGF-beta signalling is context, not core.
Supporting Evidence:
PMID:24036928
TGF-Ξ²1 increased phospho-Tyr861-FAK staining at the ends of actin fibers in the control cells
GO:0007229 integrin-mediated signaling pathway
IDA
PMID:24036928
Integrin-Ξ²5 and zyxin mediate formation of ventral stress fi...
ACCEPT
Summary: integrin-mediated signaling pathway (IDA, PMID:24036928).
Reason: FAK is a central transducer of integrin outside-in signalling: integrin engagement drives FAK Tyr397 autophosphorylation and FAK-Src complex formation. Core process.
Supporting Evidence:
PMID:24036928
Accordingly, integrin-Ξ²5-FAK-Src signaling contributes to tumorigenic potential of breast cancer cells
GO:0007229 integrin-mediated signaling pathway
IEA
GO_REF:0000117
ACCEPT
Summary: integrin-mediated signaling pathway (IEA, ARBA).
Reason: Core process.
Supporting Evidence:
PMID:9636140
tyrosine phosphorylation of paxillin and FAK elicited by stimulation of muscarinic m3 receptors with the acetylcholine analog carbachol is inhibited by soluble peptides containing the arginine-glycine-aspartate motif
GO:0007229 integrin-mediated signaling pathway
IMP
PMID:11331870
Regulation of the PH-domain-containing tyrosine kinase Etk b...
ACCEPT
Summary: integrin-mediated signaling pathway (IMP, PMID:11331870).
Reason: FAK is a central transducer of integrin outside-in signalling: integrin engagement drives FAK Tyr397 autophosphorylation and FAK-Src complex formation. Core process.
Supporting Evidence:
PMID:11331870
Disrupting the interaction between Etk and FAK diminished the cell migration promoted by either kinase
GO:0007229 integrin-mediated signaling pathway
TAS
PMID:15725728
Netrin-integrin signaling in epithelial morphogenesis, axon ...
ACCEPT
Summary: integrin-mediated signaling pathway (TAS, PMID:15725728).
Reason: FAK is a central transducer of integrin outside-in signalling: integrin engagement drives FAK Tyr397 autophosphorylation and FAK-Src complex formation. Core process.
Supporting Evidence:
PMID:15725728
Netrins accomplish these effects, at least in part, through binding to integrins and/or activating integrin-associated kinases such as FAK and Fyn
GO:0007229 integrin-mediated signaling pathway
TAS
PMID:9636140
Tyrosine phosphorylation of paxillin and focal adhesion kina...
ACCEPT
Summary: integrin-mediated signaling pathway (TAS, PMID:9636140).
Reason: FAK is a central transducer of integrin outside-in signalling: integrin engagement drives FAK Tyr397 autophosphorylation and FAK-Src complex formation. Core process.
Supporting Evidence:
PMID:9636140
tyrosine phosphorylation of paxillin and FAK elicited by stimulation of muscarinic m3 receptors with the acetylcholine analog carbachol is inhibited by soluble peptides containing the arginine-glycine-aspartate motif
GO:0007411 axon guidance
TAS
PMID:15725728
Netrin-integrin signaling in epithelial morphogenesis, axon ...
KEEP AS NON CORE
Summary: axon guidance (TAS, PMID:15725728).
Reason: Netrin-DCC/integrin signalling activates FAK in growth cones; an animal neural context of the general signalling function.
Supporting Evidence:
PMID:15725728
Netrins accomplish these effects, at least in part, through binding to integrins and/or activating integrin-associated kinases such as FAK and Fyn
GO:0008284 positive regulation of cell population proliferation
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: positive regulation of cell population proliferation (IEA, ARBA).
Reason: FAK-Src signalling promotes cell-cycle progression in animal cells (PMID:16919435); downstream outcome, non-core.
Supporting Evidence:
PMID:16919435
Activated FAK-Src functions to promote cell motility, cell cycle progression and cell survival
GO:0008284 positive regulation of cell population proliferation
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of cell population proliferation (ISS from mouse P34152).
Reason: Downstream outcome of FAK signalling; non-core.
GO:0008360 regulation of cell shape
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: regulation of cell shape (IEA, ARBA).
Reason: FAK affects spreading and shape through Rho GTPase regulation; non-core.
GO:0008360 regulation of cell shape
IMP
PMID:15166238
Focal adhesion kinase is upstream of phosphatidylinositol 3-...
KEEP AS NON CORE
Summary: regulation of cell shape (IMP, PMID:15166238).
Reason: The cached abstract reports a FAK-PI3K/Akt survival pathway in contracting collagen matrices; cell-shape data are presumably in the full text. Retained as non-core.
GO:0008432 JUN kinase binding
IDA
PMID:10925297
Regulation of neutrophil adhesion by pituitary growth hormon...
UNDECIDED
Summary: JUN kinase binding (IDA, PMID:10925297).
Reason: The cached abstract describes a physical association of FAK with Jak2 (Janus kinase 2), and says it is indirect, via STAT3; it does not mention JNK. The term JUN kinase binding (GO:0008432) may have been chosen in error for Janus kinase. The full text is not cached, so the row cannot be resolved here; a curator should check it.
Supporting Evidence:
PMID:10925297
Immunoprecipitation experiments revealed a physical association of Jak2 with p125FAK via STAT3 in vivo
GO:0010594 regulation of endothelial cell migration
TAS
PMID:20552554
The role of focal adhesion kinase in early development.
KEEP AS NON CORE
Summary: regulation of endothelial cell migration (TAS, PMID:20552554).
Reason: Cell-type-specific case of FAK regulating migration; non-core.
Supporting Evidence:
PMID:20552554
is responsible, at least in part, for the modulation of cellular proliferation, protection from apoptosis, adhesion, spreading and migration
GO:0010632 regulation of epithelial cell migration
IGI
PMID:19913511
Coronin 1C negatively regulates cell-matrix adhesion and mot...
KEEP AS NON CORE
Summary: regulation of epithelial cell migration (IGI with CORO1C, PMID:19913511).
Reason: FAK signalling mediates Coronin 1C effects on intestinal epithelial motility; cell-type-specific case of the core migration role.
Supporting Evidence:
PMID:19913511
FAK-mediated signaling is a critical downstream component, which mediates negative effects of Coronin 1C on both cell-matrix adhesion and motility of IECs
GO:0010634 positive regulation of epithelial cell migration
IGI
PMID:26944318
MicroRNA-379-5p inhibits tumor invasion and metastasis by ta...
KEEP AS NON CORE
Summary: positive regulation of epithelial cell migration (IGI with miR-379, PMID:26944318).
Reason: Restoring FAK reverses miR-379-5p suppression of HCC cell migration; cancer-cell context, non-core.
Supporting Evidence:
PMID:26944318
the tumor suppressive effects of miR-379-5p in HCC cells were reversed by activating AKT signaling or restoring FAK expression
GO:0010718 positive regulation of epithelial to mesenchymal transition
IGI
PMID:26944318
MicroRNA-379-5p inhibits tumor invasion and metastasis by ta...
KEEP AS NON CORE
Summary: positive regulation of epithelial to mesenchymal transition (IGI with miR-379, PMID:26944318).
Reason: FAK/AKT signalling supports EMT in HCC cells; downstream cancer phenotype, non-core.
Supporting Evidence:
PMID:26944318
the tumor suppressive effects of miR-379-5p in HCC cells were reversed by activating AKT signaling or restoring FAK expression
GO:0010759 positive regulation of macrophage chemotaxis
IGI
PMID:26754294
miR-28-5p-IL-34-macrophage feedback loop modulates hepatocel...
UNDECIDED
Summary: positive regulation of macrophage chemotaxis (IGI with IL34, PMID:26754294).
Reason: The cached abstract describes a miR-28-5p/IL-34/macrophage loop in HCC and does not mention FAK; full text not cached. Cannot verify the FAK-specific evidence.
GO:0010763 positive regulation of fibroblast migration
IDA
PMID:26763945
Focal Adhesion Kinase Regulates Fibroblast Migration via Int...
KEEP AS NON CORE
Summary: positive regulation of fibroblast migration (IDA, PMID:26763945).
Reason: FAK inhibition blocks fibroblast migration on fibronectin; a cell-type-specific case of the core positive regulation of cell migration.
Supporting Evidence:
PMID:26763945
FAK inhibitor blocks FAK activation and fibroblast migration on FN but has no effect on FAK-integrin Ξ²1 interaction
GO:0016477 cell migration
IMP
PMID:20305651
Gain of miR-151 on chromosome 8q24.3 facilitates tumour cell...
ACCEPT
Summary: cell migration (IMP, PMID:20305651).
Reason: FAK cooperates with miR-151 to enhance HCC cell motility; FAK is directly involved in migration through adhesion turnover and Rho GTPase control.
Supporting Evidence:
PMID:20305651
miR-151 can function synergistically with FAK to enhance HCC cell motility and spreading
GO:0016477 cell migration
IMP
PMID:26934001
MicroRNA-92b represses invasion-metastasis cascade of esopha...
ACCEPT
Summary: cell migration (IMP, PMID:26934001).
Reason: FAK knockdown represses migration of oesophageal carcinoma cells.
Supporting Evidence:
PMID:26934001
Knockdown of FAK repressed migration and invasion of 30-D cells in vitro
GO:0019901 protein kinase binding
IPI
PMID:19118217
EphA1 interacts with integrin-linked kinase and regulates ce...
KEEP AS NON CORE
Summary: protein kinase binding (IPI with EPHA1, PMID:19118217).
Reason: UniProt records a kinase-activity-dependent EPHA1-FAK interaction from this paper (not in the cached abstract). Retained as a specific partner-class term, non-core.
GO:0019903 protein phosphatase binding
IPI
PMID:28759036
Deficiency in VHR/DUSP3, a suppressor of focal adhesion kina...
KEEP AS NON CORE
Summary: protein phosphatase binding (IPI with DUSP3/VHR, PMID:28759036).
Reason: VHR binds and dephosphorylates FAK; FAK is the substrate, so the binding describes regulation of FAK, not a FAK function. Retained as non-core.
Supporting Evidence:
PMID:28759036
We identified focal adhesion kinase (FAK) as a VHR-interacting molecule
GO:0022408 negative regulation of cell-cell adhesion
IDA
PMID:21703394
Abnormal cell properties and down-regulated FAK-Src complex ...
KEEP AS NON CORE
Summary: negative regulation of cell-cell adhesion (IDA, PMID:21703394).
Reason: In autistic B lymphoblasts with low FAK, adhesion to ICAM-1-coated plates was increased and FAK overexpression reversed it. A cell-context observation; non-core.
Supporting Evidence:
PMID:21703394
the overexpression of FAK could counter the increased adhesion in autistic lymphoblasts
GO:0030010 establishment of cell polarity
TAS
PMID:19525103
Focal adhesion kinase: switching between GAPs and GEFs in th...
KEEP AS NON CORE
Summary: establishment of cell polarity (TAS, PMID:19525103).
Reason: FAK spatially regulates Rho GEFs/GAPs during directional migration; polarity is a facet of that, non-core.
Supporting Evidence:
PMID:19525103
FAK is in a unique signaling position to modulate RhoGTPase activity in space and time, thereby affecting various steps (integrin activation, leading edge formation, FA turnover, and trailing edge retraction) needed for efficient directional cell migration
GO:0030154 cell differentiation
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: cell differentiation (IEA, ARBA).
Reason: Too general to be informative; FAK affects differentiation only indirectly through adhesion signalling in specific animal cell types.
GO:0030155 regulation of cell adhesion
IBA
GO_REF:0000033
ACCEPT
Summary: regulation of cell adhesion (IBA, PTN001975314).
Reason: PAINT node for FAK/PYK2; FAK regulates integrin adhesion strength and turnover. Core-adjacent process.
Supporting Evidence:
PMID:19913511
FAK-mediated signaling is a critical downstream component, which mediates negative effects of Coronin 1C on both cell-matrix adhesion and motility of IECs
GO:0030335 positive regulation of cell migration
IBA
GO_REF:0000033
ACCEPT
Summary: positive regulation of cell migration (IBA, PTN001975314).
Reason: FAK promotes directional migration via FAK-Src signalling, Rho GTPase regulation and adhesion turnover; well supported by many descendants including human PTK2. Core process.
Supporting Evidence:
PMID:16919435
Activated FAK-Src functions to promote cell motility, cell cycle progression and cell survival
GO:0030335 positive regulation of cell migration
IDA
PMID:11331870
Regulation of the PH-domain-containing tyrosine kinase Etk b...
ACCEPT
Summary: positive regulation of cell migration (IDA, PMID:11331870).
Reason: Etk/FAK interaction promotes migration.
Supporting Evidence:
PMID:11331870
Disrupting the interaction between Etk and FAK diminished the cell migration promoted by either kinase
GO:0030335 positive regulation of cell migration
IDA
PMID:21703394
Abnormal cell properties and down-regulated FAK-Src complex ...
ACCEPT
Summary: positive regulation of cell migration (IDA, PMID:21703394).
Reason: FAK overexpression rescued the migration defect of autistic lymphoblasts.
Supporting Evidence:
PMID:21703394
overexpression of FAK could rescue the adhesion and migration defects
GO:0033629 negative regulation of cell adhesion mediated by integrin
IDA
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
MARK AS OVER ANNOTATED
Summary: negative regulation of cell adhesion mediated by integrin (IDA, PMID:10655584).
Reason: In this paper EphA2 activation suppresses integrin function, and FAK is the target that is dephosphorylated. The negative regulation is carried out by EphA2 and SHP2; FAK itself promotes integrin adhesion. The GO-CAM model of this pathway (689e7a5d00003515) gives FAK a positive regulatory role, so the negative term on FAK overstates its part.
Supporting Evidence:
PMID:10655584
this is followed by dephosphorylation of FAK and paxillin, and dissociation of the FAK-EphA2 complex
PMID:10655584
activation of endogenous EphA2 kinase induces an inactive conformation of integrins and inhibits cell spreading, migration and integrin-mediated adhesion
GO:0033634 positive regulation of cell-cell adhesion mediated by integrin
IDA
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
MODIFY
Summary: positive regulation of cell-cell adhesion mediated by integrin (IDA, PMID:10655584).
Reason: FAK promotes integrin-mediated adhesion, and the GO-CAM model 689e7a5d00003515 uses this term. But the assays in the paper (cell spreading, migration and integrin-mediated adhesion) measure adhesion to matrix, not to other cells. The parent term, positive regulation of cell adhesion mediated by integrin, fits the evidence without the cell-cell restriction.
Supporting Evidence:
PMID:10655584
activation of endogenous EphA2 kinase induces an inactive conformation of integrins and inhibits cell spreading, migration and integrin-mediated adhesion
GO:0035995 detection of muscle stretch
TAS
PMID:30568254
PI3KΞ±-regulated gelsolin activity is a critical determinant ...
KEEP AS NON CORE
Summary: detection of muscle stretch (TAS, PMID:30568254).
Reason: The paper treats the integrin/FAK complex as a cardiac mechanosensor and reports FAK phosphorylation under pressure overload. FAK responds to mechanical load, but the stretch detector is the integrin-adhesion assembly. Non-core, animal tissue context.
Supporting Evidence:
PMID:30568254
The intercellular N-cadherin/Ξ²-catenin complex9,23,24 and the integrin-based/focal adhesion kinase (FAK) complex are important mechanosensors
GO:0036064 ciliary basal body
IDA
PMID:31630787
De Novo Mutations in FOXJ1 Result in a Motile Ciliopathy wit...
KEEP AS NON CORE
Summary: ciliary basal body (IDA, PMID:31630787).
Reason: PTK2 localises near basal bodies in multiciliated respiratory epithelium, where focal-adhesion proteins anchor basal bodies to actin. A specialised animal location.
Supporting Evidence:
PMID:31630787
PTK2 localizes in the basal body area in respiratory epithelial cells of healthy control subjects
GO:0038007 netrin-activated signaling pathway
TAS
PMID:15725728
Netrin-integrin signaling in epithelial morphogenesis, axon ...
KEEP AS NON CORE
Summary: netrin-activated signaling pathway (TAS, PMID:15725728).
Reason: Netrin receptors activate FAK; one of several receptor inputs. Non-core.
Supporting Evidence:
PMID:15725728
Netrins accomplish these effects, at least in part, through binding to integrins and/or activating integrin-associated kinases such as FAK and Fyn
GO:0038096 Fc-gamma receptor signaling pathway involved in phagocytosis
TAS
Reactome:R-HSA-2029480
KEEP AS NON CORE
Summary: Fc-gamma receptor signaling pathway involved in phagocytosis (TAS, Reactome R-HSA-2029480).
Reason: Reactome includes FAK among kinases activated downstream of FCGR clustering in phagocytes; immune-cell context, non-core.
GO:0038096 Fc-gamma receptor signaling pathway involved in phagocytosis
TAS
Reactome:R-HSA-9664422
KEEP AS NON CORE
Summary: Fc-gamma receptor signaling pathway involved in phagocytosis (TAS, Reactome R-HSA-9664422).
Reason: Reactome includes FAK among kinases activated downstream of FCGR clustering in phagocytes; immune-cell context, non-core.
GO:0042127 regulation of cell population proliferation
IMP
PMID:18206965
Nuclear FAK promotes cell proliferation and survival through...
KEEP AS NON CORE
Summary: regulation of cell population proliferation (IMP, PMID:18206965).
Reason: Nuclear FAK promotes proliferation and survival by enhancing p53 degradation; non-core outcome.
Supporting Evidence:
PMID:18206965
These studies define a scaffolding role for nuclear FAK in facilitating cell survival through enhanced p53 degradation under conditions of cellular stress
GO:0042169 SH2 domain binding
IPI
PMID:15077193
Overexpression of FAK promotes Ras activity through the form...
ACCEPT
Summary: SH2 domain binding (IPI with RASA1/p120RasGAP, PMID:15077193).
Reason: FAK forms a Tyr397-dependent complex with SH2-containing p120RasGAP. pTyr docking sites for SH2 proteins are the main scaffolding mechanism of FAK. Core.
Supporting Evidence:
PMID:15077193
the Y397 residue of FAK plays a role in the formation of this complex and in the activation of Ras
GO:0043066 negative regulation of apoptotic process
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: negative regulation of apoptotic process (IEA, ARBA).
Reason: FAK survival signalling (PI3K/Akt, p53 suppression) is real but downstream; non-core.
GO:0043066 negative regulation of apoptotic process
IMP
PMID:15166238
Focal adhesion kinase is upstream of phosphatidylinositol 3-...
KEEP AS NON CORE
Summary: negative regulation of apoptotic process (IMP, PMID:15166238).
Reason: Dominant-negative FAK increased fibroblast apoptosis during collagen contraction; downstream survival outcome.
Supporting Evidence:
PMID:15166238
Dominant negative FAK augmented fibroblast apoptosis during collagen contraction
GO:0045595 regulation of cell differentiation
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: regulation of cell differentiation (IEA, ARBA).
Reason: Too general; differentiation effects are indirect and cell-type specific (e.g. osteoblasts).
GO:0045667 regulation of osteoblast differentiation
IMP
PMID:16927379
Activation of FAK is necessary for the osteogenic differenti...
KEEP AS NON CORE
Summary: regulation of osteoblast differentiation (IMP, PMID:16927379).
Reason: FAK knockdown blocked laminin-5-induced osteogenic differentiation of hMSC via ERK; a downstream, cell-type-specific outcome.
Supporting Evidence:
PMID:16927379
FAK inhibition blocked osteogenic differentiation of hMSC
GO:0048010 vascular endothelial growth factor receptor signaling pathway
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: vascular endothelial growth factor receptor signaling pathway (IEA, ARBA).
Reason: FAK acts downstream of VEGFR2 in endothelial migration; one receptor context among many.
GO:0048010 vascular endothelial growth factor receptor signaling pathway
TAS
Reactome:R-HSA-194138
KEEP AS NON CORE
Summary: vascular endothelial growth factor receptor signaling pathway (TAS, Reactome R-HSA-194138).
Reason: As above; endothelial context.
GO:0048013 ephrin receptor signaling pathway
IDA
PMID:10655584
Activation of EphA2 kinase suppresses integrin function and ...
KEEP AS NON CORE
Summary: ephrin receptor signaling pathway (IDA, PMID:10655584).
Reason: FAK is constitutively associated with EphA2 and is dephosphorylated on ephrin-A1 stimulation; FAK is a target of this pathway. Non-core.
Supporting Evidence:
PMID:10655584
EphA2 is constitutively associated with focal-adhesion kinase (FAK) in resting cells
PMID:10655584
this is followed by dephosphorylation of FAK and paxillin, and dissociation of the FAK-EphA2 complex
GO:0048471 perinuclear region of cytoplasm
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: perinuclear region of cytoplasm (IEA, UniProt SubCell).
Reason: UniProt records perinuclear FAK (PMID:15855171); minor pool, non-core.
GO:0048870 cell motility
TAS
PMID:15725728
Netrin-integrin signaling in epithelial morphogenesis, axon ...
ACCEPT
Summary: cell motility (TAS, PMID:15725728).
Reason: FAK is directly involved in cell motility; correct though general.
Supporting Evidence:
PMID:15725728
Netrins accomplish these effects, at least in part, through binding to integrins and/or activating integrin-associated kinases such as FAK and Fyn
GO:0051239 regulation of multicellular organismal process
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: regulation of multicellular organismal process (IEA, ARBA).
Reason: Uninformative high-level term; FAK acts at the cell level (adhesion, migration signalling).
GO:0051493 regulation of cytoskeleton organization
TAS
PMID:15725728
Netrin-integrin signaling in epithelial morphogenesis, axon ...
ACCEPT
Summary: regulation of cytoskeleton organization (TAS, PMID:15725728).
Reason: FAK regulates actin reorganisation through Rho GEFs/GAPs and N-WASP (PMID:19525103, PMID:14676198).
Supporting Evidence:
PMID:19525103
FAK is in a unique signaling position to modulate RhoGTPase activity in space and time, thereby affecting various steps (integrin activation, leading edge formation, FA turnover, and trailing edge retraction) needed for efficient directional cell migration
GO:0051893 regulation of focal adhesion assembly
IGI
PMID:19913511
Coronin 1C negatively regulates cell-matrix adhesion and mot...
ACCEPT
Summary: regulation of focal adhesion assembly (IGI with CORO1C, PMID:19913511).
Reason: FAK controls formation and turnover of focal adhesions. Core process.
Supporting Evidence:
PMID:19913511
FAK-mediated signaling is a critical downstream component, which mediates negative effects of Coronin 1C on both cell-matrix adhesion and motility of IECs
GO:0051893 regulation of focal adhesion assembly
TAS
PMID:16919435
Integrin-regulated FAK-Src signaling in normal and cancer ce...
ACCEPT
Summary: regulation of focal adhesion assembly (TAS, PMID:16919435).
Reason: Core process.
Supporting Evidence:
PMID:16919435
Activated FAK-Src functions to promote cell motility, cell cycle progression and cell survival
GO:0051893 regulation of focal adhesion assembly
TAS
PMID:19525103
Focal adhesion kinase: switching between GAPs and GEFs in th...
ACCEPT
Summary: regulation of focal adhesion assembly (TAS, PMID:19525103).
Reason: FAK controls FA turnover via GEF/GAP switching. Core.
Supporting Evidence:
PMID:19525103
FAK is in a unique signaling position to modulate RhoGTPase activity in space and time, thereby affecting various steps (integrin activation, leading edge formation, FA turnover, and trailing edge retraction) needed for efficient directional cell migration
GO:0051894 positive regulation of focal adhesion assembly
NAS
PMID:39287113
LncRNA FAISL Inhibits Calpain 2-Mediated Proteolysis of FAK ...
KEEP AS NON CORE
Summary: positive regulation of focal adhesion assembly (NAS, PMID:39287113; GO-CAM 682fbcd000002551).
Reason: FAK promotes talin recruitment to nascent adhesions (PMID:22270917), but it also drives adhesion disassembly and turnover. The undirected regulation term is the better core term; this row is kept as non-core.
Supporting Evidence:
PMID:39287113
Proteolysis of FAK by Calpain 2 is an important and specific mechanism for regulating the turnover of focal adhesions
PMID:22270917
FAK promotes talin recruitment to nascent adhesions occurring independently of talin binding to Ξ²1 integrins
GO:0051897 positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
IGI
PMID:26944318
MicroRNA-379-5p inhibits tumor invasion and metastasis by ta...
KEEP AS NON CORE
Summary: positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction (IGI with miR-379, PMID:26944318).
Reason: FAK acts upstream of PI3K/Akt; downstream signalling output, non-core.
Supporting Evidence:
PMID:26944318
the tumor suppressive effects of miR-379-5p in HCC cells were reversed by activating AKT signaling or restoring FAK expression
GO:0051897 positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
IMP
PMID:15166238
Focal adhesion kinase is upstream of phosphatidylinositol 3-...
KEEP AS NON CORE
Summary: positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction (IMP, PMID:15166238).
Reason: Blocking FAK reduced p85 and Akt phosphorylation in fibroblasts; FAK pY397 recruits PI3K. Real but downstream of the core integrin-signalling role.
Supporting Evidence:
PMID:15166238
Blocking FAK by pharmacologic inhibition or by dominant negative FAK attenuated phosphorylation of p85 subunit of PI3K and Akt
GO:0060396 growth hormone receptor signaling pathway
IDA
PMID:10925297
Regulation of neutrophil adhesion by pituitary growth hormon...
KEEP AS NON CORE
Summary: growth hormone receptor signaling pathway (IDA, PMID:10925297).
Reason: GH induces FAK phosphorylation in neutrophils in association with Jak2/STAT3; FAK is a downstream component in this immune-cell context.
Supporting Evidence:
PMID:10925297
pituitary GH modulates neutrophil adhesion through tyrosine phosphorylation of Jak2, p125FAK, and paxillin and actin polymerization
GO:0090303 positive regulation of wound healing
IDA
PMID:26763945
Focal Adhesion Kinase Regulates Fibroblast Migration via Int...
MARK AS OVER ANNOTATED
Summary: positive regulation of wound healing (IDA, PMID:26763945).
Reason: The evidence is an in vitro scratch (monolayer wound-closure) migration assay in fibroblasts, which measures cell migration rather than tissue wound healing. Captured by positive regulation of fibroblast/cell migration.
Supporting Evidence:
PMID:26763945
FAK inhibitor blocks FAK activation and fibroblast migration on FN but has no effect on FAK-integrin Ξ²1 interaction
GO:0097706 vascular endothelial cell response to oscillatory fluid shear stress
TAS
Reactome:R-HSA-9860927
KEEP AS NON CORE
Summary: vascular endothelial cell response to oscillatory fluid shear stress (TAS, Reactome R-HSA-9860927).
Reason: FAK phosphorylates CHUK downstream of integrins under turbulent flow (R-HSA-9861469); endothelial context, non-core.
GO:0120041 positive regulation of macrophage proliferation
IGI
PMID:26754294
miR-28-5p-IL-34-macrophage feedback loop modulates hepatocel...
UNDECIDED
Summary: positive regulation of macrophage proliferation (IGI with IL34, PMID:26754294).
Reason: The cached abstract does not mention FAK, and the full text is not cached, so the FAK-specific evidence cannot be verified.
GO:0140677 molecular function activator activity
EXP
PMID:12467573
Structures of the cancer-related Aurora-A, FAK, and EphA2 pr...
UNDECIDED
Summary: molecular function activator activity (EXP, PMID:12467573).
Reason: PMID:12467573 reports crystal structures of the FAK kinase domain. The cached abstract does not show FAK activating another protein, and this very general term does not say which activity is activated. Full text not cached; flagged for curator check.
GO:1900024 regulation of substrate adhesion-dependent cell spreading
IGI
PMID:19913511
Coronin 1C negatively regulates cell-matrix adhesion and mot...
KEEP AS NON CORE
Summary: regulation of substrate adhesion-dependent cell spreading (IGI with CORO1C, PMID:19913511).
Reason: FAK signalling mediates Coronin 1C effects on adhesion and spreading; related to the core adhesion-regulation role.
Supporting Evidence:
PMID:19913511
FAK-mediated signaling is a critical downstream component, which mediates negative effects of Coronin 1C on both cell-matrix adhesion and motility of IECs
GO:2000060 positive regulation of ubiquitin-dependent protein catabolic process
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of ubiquitin-dependent protein catabolic process (ISS from mouse P34152).
Reason: Nuclear FAK FERM domain scaffolds Mdm2-dependent p53 ubiquitination and degradation (PMID:18206965); non-core.
Supporting Evidence:
PMID:18206965
These studies define a scaffolding role for nuclear FAK in facilitating cell survival through enhanced p53 degradation under conditions of cellular stress
GO:2000811 negative regulation of anoikis
IMP
PMID:22402981
Integrin/Fak/Src-mediated regulation of cell survival and an...
KEEP AS NON CORE
Summary: negative regulation of anoikis (IMP, PMID:22402981).
Reason: beta1 integrin/Fak/Src/PI3K signalling suppresses anoikis in intestinal crypt cells; a survival outcome of the core integrin signalling.
Supporting Evidence:
PMID:22402981
signaling originating from Ξ²1 integrins to promote cell survival and anoikis suppression will often implicate focal adhesion kinase (Fak; p125Fak), Src (p60Src) and the phosphatidylinositol-3 kinase (PI3-K)/Akt-1 (PKB; p57Akt-1) pathway
GO:0038083 peptidyl-tyrosine autophosphorylation
TAS
Reactome:R-HSA-354073
NEW
Summary: FAK autophosphorylates Tyr397, the switch that creates the Src SH2 docking site.
Reason: Autophosphorylation of Tyr397 is the defining activation step of FAK and is represented in Reactome R-HSA-354073 (human) and studied directly with rat FAK splice isoforms in PMID:12391143; the Tyr397 site is conserved in human PTK2. FAK itself catalyses the step, so the participation test is met. No existing row captures the autophosphorylation process.
Supporting Evidence:
PMID:12391143
Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways

Core Functions

Non-receptor tyrosine kinase at integrin adhesions. Integrin clustering triggers FAK autophosphorylation at Tyr397. FAK then phosphorylates substrates such as p130Cas/NEDD9 and N-WASP, transducing outside-in integrin signals that control focal adhesion turnover and directional cell migration. Canonical FAK with these domains is present in Capsaspora, so this kinase-at-adhesions role probably predates animals, though it has not been tested outside animals.

Supporting Evidence:
  • PMID:9360983
    FAK directly phosphorylates Cas proteins primarily at the YDYVHL sequence that is conserved among all Cas proteins
  • PMID:14676198
    N-WASP is phosphorylated by FAK at a conserved tyrosine residue, Tyr(256)
  • PMID:12391143
    Autophosphorylation of FAK on Tyr-397 is a critical event, allowing binding of Src family kinases and activation of signal transduction pathways
  • PMID:9636140
    tyrosine phosphorylation of paxillin and FAK elicited by stimulation of muscarinic m3 receptors with the acetylcholine analog carbachol is inhibited by soluble peptides containing the arginine-glycine-aspartate motif
  • PMID:19525103
    FAK is in a unique signaling position to modulate RhoGTPase activity in space and time, thereby affecting various steps (integrin activation, leading edge formation, FA turnover, and trailing edge retraction) needed for efficient directional cell migration
  • PMID:20479219
    bona fide FAK are only present in Metazoa and C. owczarzaki

Phosphotyrosine scaffold for SH2-domain proteins. Autophosphorylated Tyr397 docks the Src SH2 domain to form the FAK-Src dual kinase complex. Further phosphotyrosines such as Tyr925 bind the GRB2 SH2 domain, and the Tyr397 site also brings in p120RasGAP and PI3K, coupling integrins to Ras/MAPK and PI3K/Akt signalling.

Supporting Evidence:
  • PMID:16291744
    Phosphorylation at Tyr-397 activates FAK and creates a binding site for Src family kinases
  • PMID:7597091
    tyrosine-phosphorylated pp125FAK directly interacts with the SH2 domain of Grb2
  • PMID:15077193
    the Y397 residue of FAK plays a role in the formation of this complex and in the activation of Ras
  • PMID:21266176
    The interaction between a peptide encompassing the SH3 and SH2 binding motifs of focal adhesion kinase (FAK) and the Src SH3-SH2 domains has been investigated with NMR spectroscopy and calorimetry

Adhesion targeting and adaptor binding. The FERM domain binds integrin beta cytoplasmic tails, and the FAT domain binds paxillin and talin. This places FAK in nascent and mature focal adhesions, and FAK in turn recruits talin to nascent adhesions independently of talin binding to integrin.

Molecular Function:
integrin binding
Cellular Locations:
Supporting Evidence:
  • PMID:26763945
    integrin Ξ²1 binding to FN is necessary for FAK association with integrin Ξ²1 and subsequent FAK activation
  • PMID:27178753
    Activated Ξ²4 integrin interacts with FAK and subsequently induces FAK phosphorylation at Tyr397
  • PMID:22270917
    The direct binding site for talin on FAK was identified, and a point mutation in FAK (E1015A) prevented talin association and talin localization to nascent adhesions
  • PMID:22270917
    FAK promotes talin recruitment to nascent adhesions occurring independently of talin binding to Ξ²1 integrins
  • PMID:7561682
    These findings strongly suggest that pp125FAK is localized to focal adhesions by the direct association with paxillin

References

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Suggested Questions for Experts

Q: Does Capsaspora FAK localise to the integrin beta2/vinculin patches in adherent-stage filopodia, and is it activated (Tyr397-equivalent autophosphorylation) on fibronectin-coated substrate? This would show whether FAK acts at adhesions before animals.

Q: Choanoflagellates lack canonical FAK, and M. brevicollis has only a FAK-related kinase domain. Was FAK lost in choanoflagellates together with integrins and the IPP complex, and does the FAK-related kinase domain retain any adhesion-linked role?

Q: Which partner-specific interfaces (FAT-paxillin LD motifs, FAT-talin, FERM-integrin, pTyr397-Src SH2) are conserved in Capsaspora FAK and its adhesome partners? Which arose in animals?

Q: Is the JUN kinase binding annotation from PMID:10925297 a JAK/JNK mix-up? The abstract describes an indirect Jak2-FAK association via STAT3.

Q: GO has no MF term for binding of paxillin-family LD motifs, which is the main focal adhesion targeting mechanism of FAK, Pyk2 and related proteins. Would such a term be useful?

Suggested Experiments

Experiment: Generate a FAK knockout or a kinase-dead knock-in in Capsaspora owczarzaki and measure substrate adhesion, filopodial integrin patch formation and aggregation, to test whether FAK is required for integrin adhesion in a unicellular holozoan.

Experiment: Express recombinant Capsaspora FAK and test Tyr397-equivalent autophosphorylation, binding of Capsaspora Src SH2, and FAT binding to Capsaspora paxillin LD motifs, alongside human FAK.

Experiment: Phosphoproteomics of human FAK-null cells rescued with wild-type, kinase-dead or Y397F FAK, to separate the catalytic and scaffolding contributions to adhesion turnover.

πŸ“š Additional Documentation

Notes

(PTK2-notes.md)

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