The regulation of glutamate receptor trafficking and function by TARPs and other transmembrane auxiliary subunits.

The regulation of glutamate receptor trafficking and function by TARPs and other transmembrane auxiliary subunits.
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DOI:
10.1016/j.conb.2011.09.005
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发表时间:
2012-06
影响因子:
5.7
通讯作者:
Tomita S
Tomita S
中科院分区:
医学2区
文献类型:
--
作者:
Straub C;Tomita S

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在大脑中的兴奋性突触处,从神经末梢释放的谷氨酸与谷氨酸受体结合以介导神经元之间的信号传导。在异源细胞中表达的谷氨酸受体显示离子通道活性。最近,天然谷氨酸受体被证明含有辅助亚基,调节运输和/或通道特性。AMPA受体(AMPAR)可以含有TARP和CNIH作为辅助亚基,而红藻氨酸受体(KAR)可以含有Neto辅助亚基。这些辅助亚基中的每一个都独特地调节谷氨酸受体,并决定天然谷氨酸受体的性质。彻底阐明天然谷氨酸受体复合物的性质是必不可少的分子机制,调节谷氨酸受体和兴奋性突触传递的大脑中的理解。
At excitatory synapses in the brain, glutamate released from nerve terminals binds to glutamate receptors to mediate signaling between neurons. Glutamate receptors expressed in heterologous cells show ion channel activity. Recently, native glutamate receptors were shown to contain auxiliary subunits that modulate the trafficking and/or channel properties. The AMPA receptor (AMPAR) can contain TARP and CNIHs as the auxiliary subunits, whereas kainate receptor (KAR) can contain the Neto auxiliary subunit. Each of these auxiliary subunits uniquely modulates the glutamate receptors, and determines properties of native glutamate receptors. A thorough elucidation of the properties of native glutamate receptor complexes is indispensable for the understanding of the molecular machinery that regulates glutamate receptors and excitatory synaptic transmission in the brain.
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