期刊
CURRENT OPINION IN NEUROBIOLOGY
卷 11, 期 3, 页码 272-280出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/S0959-4388(00)00208-7
关键词
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The four mammalian neurotrophins - NGF, BDNF, NT- and NT-4 - each bind and activate one or more of the Trk family of receptor tyrosine kinases. Through these receptors, neurotrophins activate many intracellular signaling pathways, including those controlled by Ras, the Cdc42/Rac/RhoG protein family, MAPK, PI3K and PLC-gamma, thereby affecting both development and function of the nervous system. During the past two years, several novel signaling pathways controlled by Trk receptors have been characterized, and it has become clear that membrane transport and sorting controls Trk-receptor-mediated signaling because key intermediates are localized to different membrane compartments. Three-dimensional structures of the Trk receptors, in one instance in association with a neurotrophin, have revealed the structural bases underlying specificity in neurotrophin signaling.
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