Gene description for NTRK2
Gene name neurotrophic tyrosine kinase, receptor, type 2
Gene symbol NTRK2
Other names/aliases GP145-TrkB
TRKB
trk-B
Species Homo sapiens
 Database cross references - NTRK2
ExoCarta ExoCarta_4915
Vesiclepedia VP_4915
Entrez Gene 4915
HGNC 8032
MIM 600456
UniProt Q16620  
 NTRK2 identified in sEVs derived from the following tissue/cell type
Neuroblastoma cells 25944692    
 Gene ontology annotations for NTRK2
Molecular Function
    protease binding GO:0002020 IPI
    GPI-linked ephrin receptor activity GO:0005004 IEA
    transmembrane-ephrin receptor activity GO:0005005 IEA
    epidermal growth factor receptor activity GO:0005006 IEA
    fibroblast growth factor receptor activity GO:0005007 IEA
    hepatocyte growth factor receptor activity GO:0005008 IEA
    insulin receptor activity GO:0005009 IEA
    insulin-like growth factor receptor activity GO:0005010 IEA
    macrophage colony-stimulating factor receptor activity GO:0005011 IEA
    platelet-derived growth factor alpha-receptor activity GO:0005018 IEA
    platelet-derived growth factor beta-receptor activity GO:0005019 IEA
    stem cell factor receptor activity GO:0005020 IEA
    vascular endothelial growth factor receptor activity GO:0005021 IEA
    protein binding GO:0005515 IPI
    ATP binding GO:0005524 IEA
    boss receptor activity GO:0008288 IEA
    histone H3Y41 kinase activity GO:0035401 IEA
    placental growth factor receptor activity GO:0036332 IEA
    protein tyrosine kinase collagen receptor activity GO:0038062 IEA
    protein homodimerization activity GO:0042803 ISS
    neurotrophin binding GO:0043121 IDA
    neurotrophin binding GO:0043121 ISS
    brain-derived neurotrophic factor binding GO:0048403 IBA
    brain-derived neurotrophic factor binding GO:0048403 ISS
    brain-derived neurotrophic factor receptor activity GO:0060175 IBA
    brain-derived neurotrophic factor receptor activity GO:0060175 IMP
    histone H2AXY142 kinase activity GO:0140801 IEA
Biological Process
    vasculogenesis GO:0001570 IEA
    neuron migration GO:0001764 ISS
    positive regulation of protein phosphorylation GO:0001934 TAS
    chromatin remodeling GO:0006338 IEA
    cell surface receptor protein tyrosine kinase signaling pathway GO:0007169 IBA
    epidermal growth factor receptor signaling pathway GO:0007173 IEA
    multicellular organism development GO:0007275 IBA
    learning GO:0007612 ISS
    circadian rhythm GO:0007623 IEA
    feeding behavior GO:0007631 IEA
    positive regulation of cell population proliferation GO:0008284 ISS
    insulin receptor signaling pathway GO:0008286 IEA
    fibroblast growth factor receptor signaling pathway GO:0008543 IEA
    positive regulation of gene expression GO:0010628 ISS
    positive regulation of neuron projection development GO:0010976 IBA
    positive regulation of neuron projection development GO:0010976 ISS
    glutamate secretion GO:0014047 IEA
    neuronal action potential propagation GO:0019227 IEA
    central nervous system neuron development GO:0021954 ISS
    cerebral cortex development GO:0021987 ISS
    myelination in peripheral nervous system GO:0022011 IEA
    neuron differentiation GO:0030182 ISS
    brain-derived neurotrophic factor receptor signaling pathway GO:0031547 IMP
    brain-derived neurotrophic factor receptor signaling pathway GO:0031547 TAS
    platelet-derived growth factor receptor-alpha signaling pathway GO:0035790 IEA
    platelet-derived growth factor receptor-beta signaling pathway GO:0035791 IEA
    vascular endothelial growth factor receptor-1 signaling pathway GO:0036323 IEA
    collagen-activated tyrosine kinase receptor signaling pathway GO:0038063 IEA
    vascular endothelial growth factor signaling pathway GO:0038084 IEA
    Kit signaling pathway GO:0038109 IEA
    macrophage colony-stimulating factor signaling pathway GO:0038145 IEA
    neurotrophin signaling pathway GO:0038179 IEA
    mechanoreceptor differentiation GO:0042490 IEA
    regulation of GTPase activity GO:0043087 ISS
    positive regulation of MAPK cascade GO:0043410 ISS
    negative regulation of neuron apoptotic process GO:0043524 ISS
    retinal rod cell development GO:0046548 IEA
    protein autophosphorylation GO:0046777 ISS
    insulin-like growth factor receptor signaling pathway GO:0048009 IEA
    hepatocyte growth factor receptor signaling pathway GO:0048012 IEA
    ephrin receptor signaling pathway GO:0048013 IEA
    oligodendrocyte differentiation GO:0048709 IEA
    peripheral nervous system neuron development GO:0048935 IEA
    positive regulation of axonogenesis GO:0050772 ISS
    positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction GO:0051897 IBA
    positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction GO:0051897 ISS
    positive regulation of synapse assembly GO:0051965 IEA
    long-term synaptic potentiation GO:0060291 IEA
    cellular response to amino acid stimulus GO:0071230 IEA
    trans-synaptic signaling by BDNF, modulating synaptic transmission GO:0099183 IEA
    trans-synaptic signaling by neuropeptide, modulating synaptic transmission GO:0099551 IBA
    negative regulation of amyloid-beta formation GO:1902430 IGI
    cellular response to brain-derived neurotrophic factor stimulus GO:1990416 IBA
    negative regulation of anoikis GO:2000811 IEA
Subcellular Localization
    early endosome GO:0005769 ISS
    cytosol GO:0005829 IEA
    plasma membrane GO:0005886 IBA
    plasma membrane GO:0005886 IDA
    plasma membrane GO:0005886 TAS
    postsynaptic density GO:0014069 IBA
    postsynaptic density GO:0014069 ISS
    axon GO:0030424 IBA
    axon GO:0030424 ISS
    dendrite GO:0030425 ISS
    early endosome membrane GO:0031901 IEA
    terminal bouton GO:0043195 IEA
    dendritic spine GO:0043197 IBA
    receptor complex GO:0043235 IBA
    receptor complex GO:0043235 IDA
    axon terminus GO:0043679 IBA
    perinuclear region of cytoplasm GO:0048471 ISS
 Experiment description of studies that identified NTRK2 in sEVs
1
Experiment ID 224
MISEV standards
EM|AFM
Biophysical techniques
Alix|TSG101|CD63|CD81
Enriched markers
GOLGA2
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25944692    
Organism Homo sapiens
Experiment description Proteogenomic analysis reveals exosomes are more oncogenic than ectosomes
Authors "Keerthikumar S, Gangoda L, Liem M, Fonseka P, Atukorala I, Ozcitti C, Mechler A, Adda CG, Ang CS, Mathivanan S"
Journal name Oncotarget
Publication year 2015
Sample Neuroblastoma cells
Sample name SH-SY5Y
Isolation/purification methods Differential centrifugation
Ultracentrifugation
OptiPrep density gradient
Flotation density 1.10 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
 Protein-protein interactions for NTRK2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 NTF3  
Reconstituted Complex Homo sapiens
2 POLR2G 5436
Two-hybrid Homo sapiens
3 TNK2 10188
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
4 NTF4  
Reconstituted Complex Homo sapiens
Co-crystal Structure Homo sapiens
Co-localization Homo sapiens
5 GIPC1 10755
Affinity Capture-Western Homo sapiens
6 ERBB2 2064
PCA Homo sapiens
7 SHC1 6464
Reconstituted Complex Homo sapiens
8 NMNAT1  
Two-hybrid Homo sapiens
9 TRAF6 7189
Affinity Capture-Western Homo sapiens
10 SQSTM1 8878
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
11 EGFR 1956
Two-hybrid Homo sapiens
PCA Homo sapiens
12 HSP90AA1 3320
Affinity Capture-Luminescence Homo sapiens
13 BDNF 627
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
14 NCK2 8440
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
15 RANBP9 10048
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
16 FYN 2534
Reconstituted Complex Homo sapiens
Affinity Capture-Western Homo sapiens
17 PTPN1 5770
Protein-peptide Homo sapiens
18 Nedd4 25489
Biochemical Activity Rattus norvegicus
19 FRS2 10818
Reconstituted Complex Homo sapiens
20 SH2B1 25970
Two-hybrid Homo sapiens
21 AP1B1 162
Two-hybrid Homo sapiens
22 PIK3R1 5295
Two-hybrid Homo sapiens
23 SHC3  
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
24 PLCG1 5335
Reconstituted Complex Homo sapiens
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which NTRK2 is involved
PathwayEvidenceSource
Activated NTRK2 signals through CDK5 IEA Reactome
Activated NTRK2 signals through FRS2 and FRS3 TAS Reactome
Activated NTRK2 signals through FRS2 and FRS3 IEA Reactome
Activated NTRK2 signals through FYN IEA Reactome
Activated NTRK2 signals through FYN TAS Reactome
Activated NTRK2 signals through PI3K IEA Reactome
Activated NTRK2 signals through PLCG1 TAS Reactome
Activated NTRK2 signals through PLCG1 IEA Reactome
Activated NTRK2 signals through RAS IEA Reactome
Activation of TRKA receptors IEA Reactome
BDNF activates NTRK2 (TRKB) signaling IEA Reactome
Constitutive Signaling by Aberrant PI3K in Cancer TAS Reactome
Disease TAS Reactome
Diseases of signal transduction by growth factor receptors and second messengers TAS Reactome
Intracellular signaling by second messengers TAS Reactome
Negative regulation of the PI3K/AKT network TAS Reactome
NGF-independant TRKA activation IEA Reactome
NTF3 activates NTRK2 (TRKB) signaling IEA Reactome
NTF4 activates NTRK2 (TRKB) signaling IEA Reactome
NTRK2 activates RAC1 IEA Reactome
NTRK2 activates RAC1 TAS Reactome
PI3K/AKT Signaling in Cancer TAS Reactome
PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling TAS Reactome
PIP3 activates AKT signaling TAS Reactome
Signal Transduction TAS Reactome
Signal Transduction IEA Reactome
Signaling by NTRK1 (TRKA) IEA Reactome
Signaling by NTRK2 (TRKB) IEA Reactome
Signaling by NTRK2 (TRKB) TAS Reactome
Signaling by NTRKs IEA Reactome
Signaling by NTRKs TAS Reactome
Signaling by Receptor Tyrosine Kinases IEA Reactome
Signaling by Receptor Tyrosine Kinases TAS Reactome





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