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- Table of Contents
Facts about High affinity nerve growth factor receptor.
However, NTF3 only supports axonal extension through NTRK1 but has no effect on neuron survival (By similarity). Upon dimeric NGF ligand-binding, undergoes homodimerization, autophosphorylation and activation (PubMed:1281417).
Human | |
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Gene Name: | NTRK1 |
Uniprot: | P04629 |
Entrez: | 4914 |
Belongs to: |
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protein kinase superfamily |
DKFZp781I14186; EC 2.7.10; EC 2.7.10.1; MTChigh affinity nerve growth factor receptor; Neurotrophic tyrosine kinase receptor type 1; neurotrophic tyrosine kinase, receptor, type 1; NTRK1; NTRK-1; p140-TrkA; TRK1-transforming tyrosine kinase protein; TrkA; Trk-A; TRKAOncogene TRK; TRKTRK1; tyrosine kinase receptor A
Mass (kDA):
87.497 kDA
Human | |
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Location: | 1q23.1 |
Sequence: | 1; NC_000001.11 (156815750..156881850) |
Isoform TrkA-I is found in most non-neuronal tissues. Isoform TrkA-II is primarily expressed in neuronal cells. TrkA-III is specifically expressed by pluripotent neural stem and neural crest progenitors.
Cell membrane; Single-pass type I membrane protein. Early endosome membrane; Single-pass type I membrane protein. Late endosome membrane; Single-pass type I membrane protein. Recycling endosome membrane; Single-pass type I membrane protein. Rapidly internalized after NGF binding (PubMed:1281417). Internalized to endosomes upon binding of NGF or NTF3 and further transported to the cell body via a retrograde axonal transport. Localized at cell membrane and early endosomes before nerve growth factor (NGF) stimulation. Recruited to late endosomes after NGF stimulation. Colocalized with RAPGEF2 at
PMID: 2927393 by Martin-Zanca D., et al. Molecular and biochemical characterization of the human trk proto- oncogene.
PMID: 7823156 by Shelton D.L., et al. Human trks: molecular cloning, tissue distribution, and expression of extracellular domain immunoadhesins.
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