ATP-dependent force generation and membrane scission by ESCRT-III and Vps4

Johannes Schöneberg, Mark Remec Pavlin, Shannon Yan, Maurizio Righini, Il Hyung Lee, Lars Anders Carlson, Amir Houshang Bahrami, Daniel H. Goldman, Xuefeng Ren, Gerhard Hummer, Carlos Bustamante, James H. Hurley

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

The endosomal sorting complexes required for transport (ESCRTs) catalyze reverse-topology scission from the inner face of membrane necks in HIV budding, multivesicular endosome biogenesis, cytokinesis, and other pathways. We encapsulated ESCRT-III subunits Snf7, Vps24, and Vps2 and the AAA+ ATPase (adenosine triphosphatase) Vps4 in giant vesicles from which membrane nanotubes reflecting the correct topology of scission could be pulled. Upon ATP release by photo-uncaging, this system generated forces within the nanotubes that led to membrane scission in a manner dependent upon Vps4 catalytic activity and Vps4 coupling to the ESCRT-III proteins. Imaging of scission revealed Snf7 and Vps4 puncta within nanotubes whose presence followed ATP release, correlated with force generation and nanotube constriction, and preceded scission. These observations directly verify long-standing predictions that ATP-hydrolyzing assemblies of ESCRT-III and Vps4 sever membranes.

Original languageEnglish
Pages (from-to)1423-1428
Number of pages6
JournalScience
Volume362
Issue number6421
DOIs
StatePublished - 21 Dec 2018

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