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相关概念视频

Assembly of Complex Microtubule Structures01:32

Assembly of Complex Microtubule Structures

Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...

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相关实验视频

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High-Resolution Quantitative Immunogold Analysis of Membrane Receptors at Retinal Ribbon Synapses
09:24

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Published on: February 18, 2016

管理AMPA受体贩运到海马体金字塔神经元中的突触的分单元特定规则.

S Shi1, Y Hayashi, J A Esteban

  • 1Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.

Cell
|May 12, 2001
PubMed
概括
此摘要是机器生成的。

不同的AMPA受体 (AMPA-R) 形式使用不同的突触传递机制. 在可塑性过程中添加了GluR1/GluR2受体,而GluR2/GluR3受体不断取代现有的受体,稳定了突触疗效.

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Combined Optogenetic and Freeze-fracture Replica Immunolabeling to Examine Input-specific Arrangement of Glutamate Receptors in the Mouse Amygdala
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A High-content Assay for Monitoring AMPA Receptor Trafficking
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A High-content Assay for Monitoring AMPA Receptor Trafficking

Published on: January 28, 2019

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Last Updated: Jun 23, 2026

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09:24

High-Resolution Quantitative Immunogold Analysis of Membrane Receptors at Retinal Ribbon Synapses

Published on: February 18, 2016

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09:49

Combined Optogenetic and Freeze-fracture Replica Immunolabeling to Examine Input-specific Arrangement of Glutamate Receptors in the Mouse Amygdala

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A High-content Assay for Monitoring AMPA Receptor Trafficking
10:34

A High-content Assay for Monitoring AMPA Receptor Trafficking

Published on: January 28, 2019

科学领域:

  • 神经科学是一个神经科学.
  • 突触性可塑性 突触性可塑性
  • 分子生物学分子生物学

背景情况:

  • AMPA型谷氨酸受体 (AMPA-Rs) 对于大脑中的激发性突触传输至关重要.
  • 河马AMPA-Rs主要以GluR1/GluR2或GluR2/GluR3异质寡合体的形式存在.

研究的目的:

  • 阐明 AMPA-R 亚型 GluR1/GluR2 和 GluR2/GluR3 的突触传递机制.
  • 了解控制AMPA-R流通和突触稳定性的分子相互作用.

主要方法:

  • 研究了AMPA-R在海马突触中的贩运.
  • 利用了涉及PDZ域蛋白,NSF和特定AMPA-R子单元 (GluR1,GluR2,GluR3) 的分子相互作用.

主要成果:

  • 在可塑性期间,GluR1/GluR2 AMPA-Rs被传递到突触,通过GluR1与I组PDZ蛋白的相互作用进行介导.
  • GluR2 / GluR3 AMPA-Rs经历了现有的突触受体的持续更换,这取决于GluR2与NSF和II组PDZ蛋白的相互作用.
  • 这些独特的机制在与先前存在的AMPA-Rs.的突触中起作用.

结论:

  • AMPA-R亚型的差异性贩运有助于稳定突触疗效.
  • 这种调节的添加和连续更换模型提供了关于在突触处保持表面受体数量的洞察力.