a receptor tyrosine kinase of the Trk family. High affinity receptor for nerve growth factor, neurotrophin-3 and neurotrophin-4/5 but not brain- derived neurotrophic factor. Known substrates include Shc, PI-3K, and PLC-gamma-1. Has a crucial role in the development and function of the nociceptive reception system. Two splice variant isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: EC 22.214.171.124; Protein kinase, TK; Protein kinase, tyrosine (receptor); Membrane protein, integral; Kinase, protein; TK group; Trk family
Cellular Component: cell surface; protein complex; integral to plasma membrane; late endosome membrane; dendrite; early endosome; cell soma; early endosome membrane; axon; late endosome; plasma membrane; cytoplasmic vesicle; endosome
Molecular Function: neurotrophin p75 receptor binding; neurotrophin binding; protein binding; nerve growth factor receptor activity; protein homodimerization activity; ephrin receptor binding; nerve growth factor binding; transmembrane receptor protein tyrosine kinase activity; ATP binding
Biological Process: axon guidance; mechanoreceptor differentiation; activation of MAPKK activity; nerve growth factor receptor signaling pathway; protein amino acid autophosphorylation; positive regulation of synaptic transmission, glutamatergic; olfactory nerve development; protein amino acid phosphorylation; activation of NF-kappaB transcription factor; negative regulation of cell proliferation; sympathetic nervous system development; positive regulation of Ras GTPase activity; response to radiation; learning and/or memory; small GTPase mediated signal transduction; response to axon injury; negative regulation of neuron apoptosis; detection of temperature stimulus involved in sensory perception of pain; response to electrical stimulus; response to hydrostatic pressure; aging; response to drug; response to nutrient levels; phosphoinositide-mediated signaling; adenylate cyclase activation; Sertoli cell development; detection of mechanical stimulus involved in sensory perception of pain; positive regulation of angiogenesis; positive regulation of programmed cell death; response to ethanol; phospholipase C activation; B cell differentiation; Ras protein signal transduction; positive regulation of Ras protein signal transduction; response to activity; transmembrane receptor protein tyrosine kinase signaling pathway
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.