NCIt definition : High affinity nerve growth factor receptor isoform TrkA-III (698 aa, 77 kDa) is encoded
by the human NTRK1 gene. This protein is involved in constitutive signaling and tyrosine
phosphorylation.;
NCIt note : High affinity nerve growth factor receptor isoform TrkA-III is missing the first Ig-like
C2-type domain (via a substitution of amino acid residues 192-284 with a valine) and
amino acids 393-398. This isoform is constitutively active and does not bind NGF and
does not interact with the adaptor molecules GRB2 and FRS2. (UniProt); High Affinity Nerve Growth Factor Receptor Isoform TrkA-III isoform is specifically
expressed by pluripotent neural stem and neural crest progenitors and its expression
is stimulated by hypoxia. (UniProt);