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Related Concept Videos

Fusion of Secretory Vesicles with the Plasma Membrane01:26

Fusion of Secretory Vesicles with the Plasma Membrane

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...
Exocytosis00:50

Exocytosis

Exocytosis is a process that releases molecules outside the cell. Like other bulk transport mechanisms, exocytosis requires energy.
Exocytosis is the opposite of endocytosis, which brings molecules inside the cell. Sometimes, the released materials are signaling molecules. For example, neurons typically use exocytosis to release neurotransmitters. Cells also use exocytosis to insert proteins such as ion channels into their cell membranes, secrete proteins for use in the extracellular matrix, or...
Exocytosis00:51

Exocytosis

Exocytosis is used to release material from cells. Like other bulk transport mechanisms, exocytosis requires energy.
Vesicular Tubular Clusters01:45

Vesicular Tubular Clusters

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...
Synaptic Signaling01:09

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
Synaptic Signaling01:12

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.

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Related Experiment Video

Updated: Jun 20, 2026

Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons
07:30

Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons

Published on: September 4, 2017

Flowers for synaptic endocytosis.

Nils Brose1, Erwin Neher

  • 1Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, D-37075 Göttingen, Germany. brose@em.mpg.de

Cell
|September 10, 2009
PubMed
Summary
This summary is machine-generated.

Flower, a synaptic vesicle protein, promotes endocytosis in Drosophila neuromuscular junctions. This protein ensures a steady supply of new vesicles during sustained neuronal activity.

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Examination of Synaptic Vesicle Recycling Using FM Dyes During Evoked, Spontaneous, and Miniature Synaptic Activities
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An Optical Assay for Synaptic Vesicle Recycling in Cultured Neurons Overexpressing Presynaptic Proteins
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An Optical Assay for Synaptic Vesicle Recycling in Cultured Neurons Overexpressing Presynaptic Proteins

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Related Experiment Videos

Last Updated: Jun 20, 2026

Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons
07:30

Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons

Published on: September 4, 2017

Examination of Synaptic Vesicle Recycling Using FM Dyes During Evoked, Spontaneous, and Miniature Synaptic Activities
08:10

Examination of Synaptic Vesicle Recycling Using FM Dyes During Evoked, Spontaneous, and Miniature Synaptic Activities

Published on: March 31, 2014

An Optical Assay for Synaptic Vesicle Recycling in Cultured Neurons Overexpressing Presynaptic Proteins
09:33

An Optical Assay for Synaptic Vesicle Recycling in Cultured Neurons Overexpressing Presynaptic Proteins

Published on: June 26, 2018

Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Synaptic vesicle exocytosis and endocytosis are crucial for maintaining neurotransmission during prolonged neuronal stimulation.
  • Efficient recycling of synaptic vesicles is essential for sustained neural function.

Discussion:

  • The study identifies Flower as a key protein regulating synaptic vesicle endocytosis.
  • Flower's role in promoting endocytosis was investigated at the Drosophila neuromuscular junction.
  • This finding sheds light on the molecular mechanisms governing synaptic vesicle trafficking.

Key Insights:

  • The synaptic vesicle membrane protein Flower actively promotes endocytosis.
  • This mechanism is vital for replenishing the readily releasable pool of vesicles.
  • Flower's function is critical for maintaining synaptic function under high activity conditions.

Outlook:

  • Further research can explore the precise molecular interactions of Flower.
  • Investigating Flower's role in other neuronal systems could reveal broader implications.
  • Understanding Flower's regulation may offer therapeutic targets for neurological disorders.