Vesicle Membrane Protein
Vesicle Membrane Protein - Related Videos
02:17
Visualizing Viral Structural Protein Assembly on Giant Unilamellar Vesicle Membranes
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2026
Source: Olety, B., et. al., Visualization of HIV-1 Gag Binding to Giant Unilamellar Vesicle (GUV) Membranes. J. Vis. Exp. (2016)This study demonstrates a fluorescence-based assay to observe the membrane-binding behavior of human immunodeficiency virus type-1 structural protein. Using synthetic giant unilamellar vesicles as model membranes, the assay visualizes protein recruitment and assembly, mimicking early steps of viral particle formation.
08:46
Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
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Cited by 34 •
2015
A streamlined approach to screening for the expression of recombinant membrane proteins in Escherichia coli based on fusion to green fluorescent protein is presented.
06:26
Pulling Membrane Nanotubes from Giant Unilamellar Vesicles
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Cited by 42 •
2017
Many proteins in the cell sense and induce membrane curvature. We describe a method to pull membrane nanotubes from lipid vesicles to study the interaction of proteins or any curvature-active molecule with curved membranes in vitro.
07:05
Reconstitution of Membrane Proteins
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2023
Reconstitution is the process of returning an isolated biomolecule to its original form or function. This is particularly useful for studying membrane proteins, which enable important cellular functions and affect the behavior of nearby lipids. To study the function of purified membrane proteins in situ, they must be reconstituted by integrating them into an artificial lipid membrane. This video introduces membrane protein reconstitution concepts and related procedures, such as protein...
10:21
Directed Protein Packaging within Outer Membrane Vesicles from Escherichia coli: Design, Production and Purification
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Cited by 12 •
2016
A protocol for the production, purification, and use of enzyme packaged outer membrane vesicles (OMV) providing for enhanced enzyme stability for implementation across diverse applications is presented.
FAQs
Its transmembrane domains secure the protein within the vesicle’s lipid bilayer, positioning its cytoplasmic regions toward the cell interior. Those exposed regions can bind coat proteins, Rab GTPases, motor proteins, or tethering factors. This arrangement allows one membrane component to connect vesicle formation, movement, target recognition, and subsequent communication with another organelle.
These components regulate different stages of vesicle trafficking. Coat proteins participate in vesicle formation, while Rab GTPases help control trafficking events. Motor proteins support vesicle movement, and tethering factors contribute to recognition of the correct target membrane. Interactions with vesicle membrane proteins therefore coordinate transport rather than treating each stage as an isolated process.
Complementary SNARE proteins on the vesicle and target membrane interact to draw the two lipid bilayers together. This close apposition enables membrane fusion, after which vesicle cargo can enter the target organelle or cellular compartment. The fused membranes can then participate in membrane recycling, linking cargo delivery with continued vesicle trafficking.
Anchoring through transmembrane domains keeps a vesicle membrane protein positioned in the bilayer while its cytoplasmic regions interact with transport regulators. Without this spatial arrangement, interactions with coat proteins, Rab GTPases, motors, or tethering factors would not be appropriately connected to the vesicle membrane. Positioning therefore supports coordinated trafficking and target-membrane communication.
Researchers can use these proteins as a framework for examining secretion, endocytosis, and organelle maintenance. Their interactions with trafficking and fusion factors help connect molecular events at vesicle membranes with larger patterns of cargo movement and membrane exchange. Studying these relationships can clarify how intracellular transport supports communication among organelles.
Because these proteins help regulate cargo transport, membrane recognition, fusion, and recycling, they are relevant to cellular processes affected in neurological disease and infection. Examining their roles can help researchers relate molecular trafficking events to broader cellular dysfunction. The same transport principles also make them important targets of study in engineered delivery systems.
Analysis of these proteins can reveal how organelles receive cargo, exchange membrane material, and maintain communication through repeated transport and fusion events. Their connections with coats, Rab GTPases, motors, tethering factors, and SNAREs show how trafficking is coordinated across multiple stages. This systems-level view helps explain how intracellular compartments are preserved over time.