Journal
CONTROL AND REGULATION OF TRANSPORT PHENOMENA IN THE CARDIAC SYSTEM
Volume 1123, Issue -, Pages 119-125Publisher
BLACKWELL PUBLISHING
DOI: 10.1196/annals.1420.014
Keywords
intracellular transport; model membranes; phase separation; lipid sorting
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Considerable effort over the past three decades has allowed the identification of the protein families that control the cellular machinery responsible for intracellular transport within eukaryotic cells. These proteins are estimated to represent about 10-20% of the human proteome. The complexity of intracellular transport makes useful the development of model membranes. We describe here experimental systems based on lipid giant unilamellar vesicles (GUVs), which are attached to kinesin molecules. These systems give rise to thin membrane tubes and to complex tubular networks when incubated in vitro with microtubules and ATE This type of assay, which mimics key events occurring during intracellular transport, allows physicists and biologists to understand how the unique mechanical properties of lipid membranes could be involved in the budding process, the sorting of cargo proteins and lipids, and the separation of the buds from a donor membrane.
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