The p75 neurotrophin receptor (p75NTR) was first identified in 1973 as the low-affinity nerve growth factor receptor (LNGFR)[5][6] before discovery that p75NTR bound other neurotrophins equally well as nerve growth factor.[7][8] p75NTR is a neurotrophic factor receptor. Neurotrophic factor receptors bind Neurotrophins including Nerve growth factor, Neurotrophin-3, Brain-derived neurotrophic factor, and Neurotrophin-4. All neurotrophins bind to p75NTR. This also includes the immature pro-neurotrophin forms.[9][10] Neurotrophic factor receptors, including p75NTR, are responsible for ensuring a proper density to target ratio of developing neurons, refining broader maps in development into precise connections. p75NTR is involved in pathways that promote neuronal survival and neuronal death.[7]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Johnson D, Lanahan A, Buck CR, Sehgal A, Morgan C, Mercer E, et al. (November 1986). "Expression and structure of the human NGF receptor". Cell. 47 (4): 545–554. doi:10.1016/0092-8674(86)90619-7. PMID3022937. S2CID22472119.