Potocytosis
Potocytosis is a type of
Like other types of receptor-mediated endocytosis, potocytosis typically begins when an extracellular
Mechanism
Lipid rafts in the plasma membrane act as membrane microdomains. They are enriched in cholesterol and sphingolipids and are involved potocytosis as the lateral compartmentalization of molecules. Caveolae are caveolin-1-enriched smooth invaginations found on these lipid rafts that contribute to transportation of molecules.[3] Potocytosis works by taking up material into caveolae at the surface of the cell. Glycosylphosphatidylinositol-anchored class of membrane proteins generate high concentrations of molecules. This may either be by releasing a receptor bound molecule, by converting molecules enzymatically or by releasing them from a carrier protein.[4]
References
- ^ ISBN 978-0-07-304962-5.
- PMID 11685539.
- PMID 20630468.
- PMID 14731772.