ESCRT-III proteins assemble into ubiquitous membrane-remodeling polymers during many cellular processes. Here, the authors use cryo-ET, cryo-EM and mathematical modeling to reveal how the shape of the helical membrane tube arises from the assembly of two distinct bundles of helical filaments.
- Joachim Moser von Filseck
- Luca Barberi
- Aurélien Roux