[Term] id: PR:000021997 name: TRK receptor def: "A protein that is a tyrosine kinase receptor that is activated by dimerization, resulting in autophosphorylation of intracellular tyrosine residues and triggering of the signal transduction cascade." [PMID:10388563] comment: Category=family. xref: PIRSF:PIRSF000623 is_a: PR:000000001 ! protein