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Neurotrophin-3, or NT-3, is a neurotrophic factor, in the NGF-family of neurotrophins. It is a protein growth factor that has activity on certain neurons of the peripheral and central nervous system ; it helps to support the survival and differentiation of existing neurons, and encourages the growth and differentiation of new neurons and synapses .
Neurotrophic factors also promote the initial growth and development of neurons in the central nervous system and peripheral nervous system, and they are capable of regrowing damaged neurons in test tubes and animal models. [1] [4] Some neurotrophic factors are also released by the target tissue in order to guide the growth of developing axons.
Brain-derived neurotrophic factor (BDNF), or abrineurin, [5] is a protein [6] that, in humans, is encoded by the BDNF gene. [7] [8] BDNF is a member of the neurotrophin family of growth factors, which are related to the canonical nerve growth factor (NGF), a family which also includes NT-3 and NT-4/NT-5.
Tropomyosin receptor kinase B is the high affinity catalytic receptor for several "neurotrophins", which are small protein growth factors that induce the survival and differentiation of distinct cell populations. The neurotrophins that activate TrkB are: BDNF (Brain Derived Neurotrophic Factor), neurotrophin-4 (NT-4), and neurotrophin-3 (NT-3).
2668 14573 Ensembl ENSG00000168621 ENSMUSG00000022144 UniProt P39905 P48540 RefSeq (mRNA) NM_000514 NM_001190468 NM_001190469 NM_001278098 NM_199231 NM_199234 NM_010275 NM_001301332 NM_001301333 NM_001301357 RefSeq (protein) NP_000505 NP_001177397 NP_001177398 NP_001265027 NP_954701 NP_001288261 NP_001288262 NP_001288286 NP_034405 Location (UCSC) Chr 5: 37.81 – 37.84 Mb Chr 15: 7.84 – 7.87 ...
In adults, GH therapy has been FDA-approved to treat GHD and HIV-related muscle loss. What causes growth hormone deficiency? GHD is a relatively rare condition. Slowed growth, short stature, and ...
As opposed to TrkA, the LNGFR plays a somewhat less clear role in NGF biology. Some researchers have shown the LNGFR binds and serves as a "sink" for neurotrophins. Cells which express both the LNGFR and the Trk receptors might therefore have a greater activity – since they have a higher "microconcentration" of the neurotrophin.
4804 18053 Ensembl ENSG00000064300 ENSMUSG00000000120 UniProt P08138 Q9Z0W1 RefSeq (mRNA) NM_002507 NM_033217 RefSeq (protein) NP_002498 NP_150086 Location (UCSC) Chr 17: 49.5 – 49.52 Mb Chr 11: 95.46 – 95.48 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The p75 neurotrophin receptor (p75NTR) was first identified in 1973 as the low-affinity nerve growth factor receptor (LNGFR ...