Nerve Growth Factor Receptor, also termed NGFR p75, p75NTR, or CD271 is the low affinity NGFR (LNGFR) which binds NGF and other neurotrophins including BDNF, NT3, NT4/5 with similar, low affinity. p75NTR displays paradoxical functions when acting alone or with other receptor proteins. Working in concert with Trk receptors, p75NTR recognizes neurotrophins and transmits trophic signals into the cell. Both p75NTR and TrkA are required to activate PI3K-Akt signaling, while TrkA can individually activate the MAP kinase pathway.
