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Updated: Aug 7, 2026

Quantitative Approaches for Scoring in vivo Neuronal Aggregate and Organelle Extrusion in Large Exopher Vesicles in C. elegans
Published on: September 18, 2020
Vesicle budding: a coat for the COPs
1Zentrum Biochemie and Molekulare Zellbiologie, University of Göttingen, Humboldtallee 23, D-37073 Göttingen, Germany. vhaucke@gwdg.de
Abstract:
Although vesicular transport in eukaryotic cells involves a number of different carriers, one common feature is that most of them use small GTPases to direct coat assembly at the donor membrane. COPII coated vesicles bud from the endoplasmic reticulum to selectively export secretory cargo en route to the Golgi complex. Vesicle formation involves the stepwise recruitment of the small GTPase Sar1 and two large heterodimeric complexes Sec23-Sec24 and Sec13-Sec31 to the membrane. A new structural study now provides breathtaking molecular insights into the formation of the Sec23-Sec24-Sar1 pre-budding complex and into COPII coat assembly.
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