% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Hudina:1045037,
author = {Hudina, Esther and Schott-Verdugo, Stephan and Junglas,
Benedikt and Kutzner, Mirka and Ritter, Ilona and Hellmann,
Nadja and Schneider, Dirk and Gohlke, Holger and Sachse,
Carsten},
title = {{T}he bacterial {ESCRT}-{III} {P}sp{A} rods thin lipid
tubules and increase membrane curvature through helix α0
interactions},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {122},
number = {32},
issn = {0027-8424},
address = {Washington, DC},
publisher = {National Acad. of Sciences},
reportid = {FZJ-2025-03486},
pages = {e2506286122},
year = {2025},
abstract = {The phage shock protein A (PspA), a bacterial member of the
endosomal sorting complexes required for transport
(ESCRT)-III superfamily, forms rod-shaped helical assemblies
that internalize membrane tubules. The N-terminal helix α0
of PspA (and other ESCRT-III members) has been suggested to
act as a membrane anchor; the detailed mechanism, however,
of how it binds to membranes and eventually triggers
membrane fusion and/or fission events remains unclear. By
solving a total of 15 cryoelectron microscopy (cryo-EM)
structures of PspA and a truncation lacking the N-terminal
helix α0 in the presence of Escherichia coli polar lipid
membranes, we show in molecular detail how PspA interacts
with and remodels membranes: Binding of the N-terminal helix
α0 in the outer tubular membrane leaflet induces membrane
curvature, supporting membrane tubulation by PspA. Detailed
molecular dynamics simulations and free energy computations
of interactions between the helix α0 and negatively charged
membranes suggest a compensating mechanism between
helix-membrane interactions and the energy contributions
required for membrane bending. The energetic considerations
are in line with the membrane structures observed in the
cryo-EM images of tubulated membrane vesicles, fragmented
vesicles inside tapered PspA rods, and shedded vesicles
emerging at the thinner PspA rod ends. Our results provide
insights into the molecular determinants and a potential
mechanism of vesicular membrane remodeling mediated by a
member of the ESCRT-III superfamily.},
cin = {ER-C-3},
ddc = {500},
cid = {I:(DE-Juel1)ER-C-3-20170113},
pnm = {5352 - Understanding the Functionality of Soft Matter and
Biomolecular Systems (POF4-535) / 5241 - Molecular
Information Processing in Cellular Systems (POF4-524) / SFB
1551 R16 - Ein kovalenter und nicht-kovalenter
makromolekularer Ansatz zur präzisen und schaltbaren
Protein-Oligomerisierung: Grundlegende Einblicke und
Kontrolle zellulärer Funktionen (R16#) (549981499)},
pid = {G:(DE-HGF)POF4-5352 / G:(DE-HGF)POF4-5241 /
G:(GEPRIS)549981499},
typ = {PUB:(DE-HGF)16},
pubmed = {40758888},
UT = {WOS:001552219500001},
doi = {10.1073/pnas.2506286122},
url = {https://juser.fz-juelich.de/record/1045037},
}