Excitatory amino acid transporters: roles in glutamatergic neurotransmission.
Excitatory amino acid transporters: roles in glutamatergic neurotransmission.
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DOI:
10.1016/j.neuint.2013.12.008
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发表时间:
2014-07
影响因子:
4.2
通讯作者:
Underhill SM
中科院分区:
文献类型:
--
作者:
Divito CB;Underhill SM
Excitatory amino acid transporters or EAATs are the major transport mechanism for extracellular glutamate in the nervous system. This family of five carriers not only displays an impressive ability to regulate ambient extracellular glu concentrations but also regulate the temporal and spatial profile of glu after vesicular release. This dynamic form of regulation mediates several characteristic of synaptic, perisynaptic, and spillover activation of ionotropic and metabotropic receptors. EAATs function through a secondary active, electrogenic process but also possess a thermodynamically uncoupled ligand gated anion channel activity, both of which have been demonstrated to play a role in regulation of cellular activity. This review will highlight the inception of EAATs as a focus of research, the transport and channel functionality of the carriers, and then describe how these properties are used to regulate glutamatergic neurotransmission.
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