Related Experiment Video
Updated: Aug 16, 2026

Visualizing Clathrin-mediated Endocytosis of G Protein-coupled Receptors at Single-event Resolution via TIRF Microscopy
Published on: October 20, 2014
Glycosylphosphatidylinositol-anchored receptor-mediated bacterial endocytosis
1Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.
Abstract:
An increasing number of pathogens or their toxins appear to utilize glycosylphosphatidylinositol(GPI)-anchored receptors to trigger entry into immune and other host cells. Since these receptors have no transmembrane and intracellular moieties, how endocytosis is initiated is unclear. Recently, CD48 on mast cell membranes was shown to trigger endocytosis of bacteria via a route that avoids fusion with lysosomes and by a mechanism involving discrete cellular entities called caveolae. The localization of CD48 within caveolae appears to be a prerequisite for caveolae-mediated bacterial entry.
More Related Videos
10:07"Phagosome Closure Assay" to Visualize Phagosome Formation in Three Dimensions Using Total Internal Reflection Fluorescent Microscopy (TIRFM)
Published on: August 26, 2016
11:05Analysis of Endocytic Uptake and Retrograde Transport to the Trans-Golgi Network Using Functionalized Nanobodies in Cultured Cells
Published on: February 21, 2019
Related Concept Videos
Receptor-mediated Endocytosis
Endocytosis
Endocytosis always begins with the plasma membrane enclosing an incoming molecule to form a transport vesicle which, in some cases, can be coated with a protein called ‘clathrin.' Endocytosed material is either sorted through...
Phagocytosis
The objective of phagocytosis is often destruction. Cells use phagocytosis to eliminate unwelcome visitors, like pathogens (e.g., viruses and bacteria). Many immune system cells, including...
Receptor-mediated Endocytosis
Clathrin-Mediated Endocytosis of LDL
One well-characterized example of receptor-mediated endocytosis is the...
GPI Anchoring of Proteins in the ER Membrane
GPI-anchor structure
A sequence of 11 enzymatic reactions results in the synthesis of the complete GPI anchor consisting of a hydrophobic and a hydrophilic portion. The hydrophobic portion comprises phosphatidylinositol, while the hydrophilic part comprises polar groups like phosphoethanolamine,...
Receptor-Mediated Endocytosis
Clathrin-Mediated Endocytosis of LDL
One well-characterized example of receptor-mediated endocytosis is the...