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相关概念视频

Subcellular Fractionation01:32

Subcellular Fractionation

9.4K
The homogenate obtained after cell lysis contains various membrane-bound organelles that can be further separated into pure fractions by subcellular fractionation. These isolates are used to study specific cellular components, analyze localized protein activity, and are even employed in diagnostics. Fractionation is typically achieved using centrifugation methods, the most common being density-gradient and differential centrifugation.
Differential Centrifugation
Differential centrifugation is...
9.4K
Fusion of Secretory Vesicles with the Plasma Membrane01:26

Fusion of Secretory Vesicles with the Plasma Membrane

19.3K
Proteins and neurotransmitters in secretory vesicles can be released from a cell upon vesicle docking, priming, and fusion with the plasma membrane. Vesicles are docked and primed in preparation for the quick exocytosis of their contents in response to a stimulus. The fusion process is mainly carried out by a SNAP Receptor or SNARE complex, consisting of synaptobrevin, syntaxin-1, and SNAP-25.
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
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The Role of Ion Channels in Neuronal Computation01:19

The Role of Ion Channels in Neuronal Computation

4.2K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
4.2K
Overview of Secretory Vesicles01:33

Overview of Secretory Vesicles

9.8K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
9.8K
Vesicular Tubular Clusters01:45

Vesicular Tubular Clusters

3.3K
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
3.3K
Additional Subnuclear Structures02:10

Additional Subnuclear Structures

5.5K
The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals. 
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
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相关实验视频

Updated: Mar 17, 2026

Cell Subtype-specific Analysis of Neuronal Membrane Proteasome in Somatosensory Neurons
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Cell Subtype-specific Analysis of Neuronal Membrane Proteasome in Somatosensory Neurons

Published on: October 10, 2025

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潜:特定于细胞类型的组成,计算和功能.

Adrienne I Kinman1, Larissa Kraus1, Mark S Cembrowski2

  • 1Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.

Trends in neurosciences
|March 15, 2026
PubMed
概括
此摘要是机器生成的。

研究人员在脑下部 (subiculum) 确定了不同的刺激神经元亚型,这是海马的一个关键输出区域. 这些空间组织的子类型为学习,记忆和认知机制提供了新的见解.

关键词:
行为行为行为行为.电路中的电路.在海马体内,海马体多式多样化的多式模式投影是指一个投影的投影.转录组 (transcriptome) 是一个转录组.

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Subcellular Fractionation for the Isolation of Synaptic Components from the Murine Brain
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Subcellular Fractionation for the Isolation of Synaptic Components from the Murine Brain

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Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient
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相关实验视频

Last Updated: Mar 17, 2026

Cell Subtype-specific Analysis of Neuronal Membrane Proteasome in Somatosensory Neurons
09:27

Cell Subtype-specific Analysis of Neuronal Membrane Proteasome in Somatosensory Neurons

Published on: October 10, 2025

646
Subcellular Fractionation for the Isolation of Synaptic Components from the Murine Brain
12:14

Subcellular Fractionation for the Isolation of Synaptic Components from the Murine Brain

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Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient
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Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient

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科学领域:

  • 神经科学是一个神经科学.
  • 细胞生物学 细胞生物学
  • 系统神经科学 系统神经科学

背景情况:

  • 海马对于学习,记忆和认知至关重要.
  • 垂体是海马体的主要输出区域,利用刺激神经元.
  • 了解体内刺激神经元的特性是解读海马体功能的关键.

研究的目的:

  • 审查和整合近期的动物研究,以苏比刺激神经元.
  • 探索这些神经元的分子,细胞,电路和功能性质.
  • 建立一个框架来理解海马的处理和输出.

主要方法:

  • 文献综述侧重于最近的动物研究.
  • 在分子,细胞和电路层面整合发现.
  • 对潜刺激神经元的功能性质的分析.

主要成果:

  • 离散的刺激神经元亚型在体内各个模式之间得到一致的表现.
  • 这些已识别的子类型占据了不同的空间子域.
  • 有证据表明,海马体的并行输出受到空间限制.

结论:

  • 潜刺激神经元的子类型框架有助于将海马处理置于背景中.
  • 这个框架支持空间分离的海马体输出概念.
  • 为未来对海马功能机制的研究提供了路线图.