Summary

Name FYN
Full Name Tyrosine-protein kinase Fyn
Synonyms Proto-oncogene Syn, Proto-oncogene c-Fyn, Src-like kinase, SLK, p59-Fyn
Primary ID P06241
Links - -
Type protein
Relations 149
Pathways B-cell activation, Mitochondrial dynamics in T cell exhaustion, T cell activation
Function Non-receptor tyrosine-protein kinase that plays a role in many biological processes including regulation of cell growth and survival, cell adhesion, integrin-mediated signaling, cytoskeletal remodeling, cell motility, immune response and axon guidance. Inactive FYN is phosphorylated on its C-terminal tail within the catalytic domain. Following activation by PKA, the protein subsequently associates with PTK2/FAK1, allowing PTK2/FAK1 phosphorylation, activation and targeting to focal adhesions. Involved in the regulation of cell adhesion and motility through phosphorylation of CTNNB1 (beta-catenin) and CTNND1 (delta-catenin). Regulates cytoskeletal remodeling by phosphorylating several proteins including the actin regulator WAS and the microtubule-associated proteins MAP2 and MAPT. Promotes cell survival by phosphorylating AGAP2/PIKE-A and preventing its apoptotic cleavage. Participates in signal transduction pathways that regulate the integrity of the glomerular slit diaphragm (an essential part of the glomerular filter of the kidney) by phosphorylating several slit diaphragm components including NPHS1, KIRREL1 and TRPC6. Plays a role in neural processes by phosphorylating DPYSL2, a multifunctional adapter protein within the central nervous system, ARHGAP32, a regulator for Rho family GTPases implicated in various neural functions, and SNCA, a small pre-synaptic protein. Participates in the downstream signaling pathways that lead to T-cell differentiation and proliferation following T-cell receptor (TCR) stimulation. Phosphorylates PTK2B/PYK2 in response to T-cell receptor activation. Also participates in negative feedback regulation of TCR signaling through phosphorylation of PAG1, thereby promoting interaction between PAG1 and CSK and recruitment of CSK to lipid rafts. CSK maintains LCK and FYN in an inactive form. Promotes CD28-induced phosphorylation of VAV1. In mast cells, phosphorylates CLNK after activation of immunoglobulin epsilon receptor signaling (By similarity).

Viewer

▶Modifications Tables

Relations

Regulator Mechanism target score ℹ
+ down-regulates activity img/direct_inhibition.png phosphorylation H3-3A 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation FYN 0.479
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PTPN6 0.57
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation AGAP2 0.489
Publications: 2 Organism: Homo Sapiens
+ img/unknown.png phosphorylation GRIN2B 0.78
Publications: 8 Organism: In Vitro, Homo Sapiens,
+ up-regulates activity img/direct-activation.png phosphorylation KCND3 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2A 0.747
Publications: 3 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation DCC 0.59
Publications: 2 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation PTPRJ 0.361
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation ACP1 0.374
Publications: 2 Organism: Chlorocebus Aethiops
+ up-regulates img/direct-activation.png phosphorylation GRIN2A 0.747
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation CAV1 0.733
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BSG (isoform 2) 0.267
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation CTNNB1 0.855
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.78
Publications: 1 Organism: In Vitro
+ down-regulates img/direct_inhibition.png phosphorylation SCN5A 0.29
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation CDK5 0.622
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation MAPT 0.524
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation NMT1 0.374
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png phosphorylation CNN1 0.326
Publications: 2 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation CD300LB 0.306
Publications: 1 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation CD79B 0.686
Publications: 2 Organism: In Vitro
Pathways:B-cell activation
+ up-regulates activity img/direct-activation.png phosphorylation CD79A 0.612
Publications: 1 Organism: In Vitro
Pathways:B-cell activation
+ up-regulates quantity img/direct-activation.png phosphorylation IFITM3 0.443
Publications: 1 Organism: Mus Musculus
+ up-regulates img/direct-activation.png phosphorylation LAT 0.759
Publications: 2 Organism: Homo Sapiens
Pathways:B-cell activation, T cell activation
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation CTLA4 0.78
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation CHN2 0.2
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation CTLA4 0.78
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation CD300LF 0.34
Publications: 2
+ down-regulates activity img/direct_inhibition.png phosphorylation STK11 0.323
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation CNN3 0.326
Publications: 1 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation TRIO 0.2
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation FYN 0.2
Publications: 4 Organism: In Vitro
Pathways:B-cell activation, T cell activation
+ up-regulates activity img/direct-activation.png phosphorylation FYN 0.595
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation SLAMF1 0.668
Publications: 3 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation FCGR2A 0.551
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation WAS 0.549
Publications: 2 Organism: Mus Musculus, Homo Sapiens
Pathways:T cell activation
+ up-regulates activity img/direct-activation.png phosphorylation FCGR2C 0.2
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation PRKCD 0.61
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation MAPK14 0.509
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation MAPK14 0.509
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation CLIC5 0.291
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation DLG2 0.362
Publications: 1 Organism: In Vitro
+ up-regulates img/direct-activation.png phosphorylation SHC1 0.743
Publications: 4 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation ITPR1 0.477
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation IKBKG 0.349
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PTK2 0.615
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation ARHGAP33 0.45
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation TXK 0.34
Publications: 1
+ up-regulates img/direct-activation.png phosphorylation FYN 0.2
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation, T cell activation
+ down-regulates img/direct_inhibition.png dephosphorylation FYN 0.32
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png dephosphorylation FYN 0.387
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation ITCH 0.358
Publications: 1 Organism: Mus Musculus
+ down-regulates img/direct_inhibition.png dephosphorylation FYN 0.515
Publications: 1 Organism: Homo Sapiens
Tissue: Kidney
+ down-regulates activity img/direct_inhibition.png phosphorylation PRKAA2 0.255
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation PTGS2 0.384
Publications: 1 Organism: In Vitro
+ img/unknown.png phosphorylation CD5 0.481
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation TOM1L1 0.425
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation PGD 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation LCK 0.434
Publications: 1 Organism: Homo Sapiens
Pathways:T cell activation
+ up-regulates img/direct-activation.png phosphorylation DLG4 0.55
Publications: 1 Organism: Homo Sapiens
Tissue: Brain
+ up-regulates img/direct-activation.png phosphorylation RPS6KA3 0.32
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png dephosphorylation FYN 0.387
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png dephosphorylation FYN 0.742
Publications: 1 Organism: Homo Sapiens
Pathways:T cell activation
+ up-regulates img/direct-activation.png dephosphorylation FYN 0.671
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png dephosphorylation FYN 0.671
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation ZDHHC5 0.384
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation JUP 0.576
Publications: 1 Organism: Rattus Norvegicus
+ up-regulates activity img/direct-activation.png phosphorylation JUP 0.576
Publications: 1 Organism: Rattus Norvegicus
+ up-regulates activity img/direct-activation.png phosphorylation DCBLD2 0.343
Publications: 7 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png phosphorylation NOX4 0.269
Publications: 1 Organism: In Vitro
+ down-regulates quantity img/direct_inhibition.png phosphorylation NFE2L2 0.396
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation FYB1 0.2
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation TGFB1I1 0.336
Publications: 1 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation KIRREL1 0.2
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation MAG 0.416
Publications: 1 Organism: Mus Musculus
+ up-regulates img/direct-activation.png phosphorylation MED28 0.436
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation GRB10 0.372
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PRKACA 0.479
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation CBL 0.817
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PLCG2 0.59
Publications: 2 Organism: In Vitro
Pathways:B-cell activation
+ up-regulates quantity img/direct-activation.png phosphorylation APP 0.445
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation PTPRT 0.409
Publications: 1
+ up-regulates img/direct-activation.png binding FYN 0.525
Publications: 1 Organism: Homo Sapiens
Tissue: Muscle, Skeletal Muscle, Kidney
+ up-regulates img/direct-activation.png binding FYN 0.373
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PLEKHG1 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation VAV1 0.649
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BCR-Dl 0.649
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation
+ up-regulates activity img/direct-activation.png phosphorylation BCAR1 0.777
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation TRPC6 0.494
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BCR-Mk 0.649
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation
+ up-regulates activity img/direct-activation.png phosphorylation KHDRBS1 0.533
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation FLT3 0.29
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation PRKCQ 0.338
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation LCP2 0.765
Publications: 1 Organism: Homo Sapiens
Pathways:T cell activation
+ up-regulates quantity img/direct-activation.png phosphorylation LRP8 0.654
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BCR-Dk 0.649
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation
+ img/unknown.png phosphorylation Histone H3 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation ZAP70 0.59
Publications: 1 Organism: Homo Sapiens
Pathways:T cell activation
+ up-regulates activity img/direct-activation.png phosphorylation GAB2 0.624
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation DAB1 0.632
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation CYTH1 0.389
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation SCN9A 0.359
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation NPHS1 0.751
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation NTRK1 0.253
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PAG1 0.715
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation FYN 0.444
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BCR-Ml 0.649
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation
+ up-regulates activity img/direct-activation.png phosphorylation PTPRF 0.387
Publications: 1 Organism: Chlorocebus Aethiops
+ up-regulates activity img/direct-activation.png phosphorylation TRPV4 0.343
Publications: 1 Organism: Homo Sapiens