Activated NTRK3 signals through PI3K

Summary
Organism
Homo sapiens (human)
Reactome
R-HSA-9603381
PubChem
R-HSA-9603381
Description
  • The PI3K complex, composed of PIK3R1 and PIK3CA, co-immunoprecipitates with NTRK3 (TRKC), activated by NTF3 (NT-3) treatment (Yuen and Mobley 1999). Activation of NTRK3 correlates with activating phosphorylation of AKT, the main mediator of PI3K signaling (Tognon et al. 2001, Jin et al. 2008), and is dependent on PI3K activity (Tognon et al. 2001). NTRK3-mediated activation of PI3K signaling depends on SRC activation and the adaptor protein IRS1, but the exact mechanism is not known (Morrison et al. 2002, Lannon et al. 2004, Jin et al. 2008).
Click on a node on the pathway to see its details. Glycoproteins are marked with a glycoprotein icon in their name.
Displaying all 4 entries
UniProt ID Protein Name Gene Symbol Pathway Viewer
P12931 Proto-oncogene tyrosine-protein kinase Src
  • SRC
  • SRC1
view
P20783 Neurotrophin-3
  • NTF3
view
P35568 Insulin receptor substrate 1
  • IRS1
view
Q16288 NT-3 growth factor receptor
  • NTRK3
  • TRKC
view

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 6, 2026