Title |
Systematic Nanoscale Analysis of Endocytosis Links Efficient Vesicle Formation to Patterned Actin Nucleation
|
---|---|
Published in |
Cell, July 2018
|
DOI | 10.1016/j.cell.2018.06.032 |
Pubmed ID | |
Authors |
Markus Mund, Johannes Albertus van der Beek, Joran Deschamps, Serge Dmitrieff, Philipp Hoess, Jooske Louise Monster, Andrea Picco, François Nédélec, Marko Kaksonen, Jonas Ries |
Abstract |
Clathrin-mediated endocytosis is an essential cellular function in all eukaryotes that is driven by a self-assembled macromolecular machine of over 50 different proteins in tens to hundreds of copies. How these proteins are organized to produce endocytic vesicles with high precision and efficiency is not understood. Here, we developed high-throughput superresolution microscopy to reconstruct the nanoscale structural organization of 23 endocytic proteins from over 100,000 endocytic sites in yeast. We found that proteins assemble by radially ordered recruitment according to function. WASP family proteins form a circular nanoscale template on the membrane to spatially control actin nucleation during vesicle formation. Mathematical modeling of actin polymerization showed that this WASP nano-template optimizes force generation for membrane invagination and substantially increases the efficiency of endocytosis. Such nanoscale pre-patterning of actin nucleation may represent a general design principle for directional force generation in membrane remodeling processes such as during cell migration and division. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 23 | 16% |
United Kingdom | 16 | 11% |
Germany | 11 | 8% |
France | 9 | 6% |
Switzerland | 5 | 4% |
Spain | 3 | 2% |
Austria | 3 | 2% |
Finland | 3 | 2% |
Uruguay | 2 | 1% |
Other | 21 | 15% |
Unknown | 44 | 31% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 78 | 56% |
Scientists | 57 | 41% |
Science communicators (journalists, bloggers, editors) | 4 | 3% |
Practitioners (doctors, other healthcare professionals) | 1 | <1% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 225 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 54 | 24% |
Student > Ph. D. Student | 48 | 21% |
Student > Master | 18 | 8% |
Student > Bachelor | 16 | 7% |
Student > Doctoral Student | 12 | 5% |
Other | 40 | 18% |
Unknown | 37 | 16% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 78 | 35% |
Agricultural and Biological Sciences | 38 | 17% |
Neuroscience | 18 | 8% |
Physics and Astronomy | 15 | 7% |
Chemistry | 8 | 4% |
Other | 24 | 11% |
Unknown | 44 | 20% |