Results 21 to 30 of about 165,835 (261)

Mechanism of membrane-curvature generation by ER-tubule shaping proteins

open access: yesNature Communications, 2021
The endoplasmic reticulum network consists of tubules with high membrane curvature in cross-section, generated by the reticulons and REEPs, but how they introduce curvature is poorly understood.
Ning Wang   +5 more
doaj   +1 more source

Monomeric Synucleins Generate Membrane Curvature [PDF]

open access: yesJournal of Biological Chemistry, 2013
Synucleins are a family of presynaptic membrane binding proteins. α-Synuclein, the principal member of this family, is mutated in familial Parkinson disease. To gain insight into the molecular functions of synucleins, we performed an unbiased proteomic screen and identified synaptic protein changes in αβγ-synuclein knock-out brains.
Christopher H, Westphal   +1 more
openaire   +2 more sources

Membrane curvature response in autophagy [PDF]

open access: yesAutophagy, 2011
Membrane trafficking is key for signal transduction, cargo transportation, and in the case of autophagy, delivering cytoplasmic substrates to the lysosome for degradation. Autophagy requires the formation of a unique double membrane vesicle, the autophagosome. However, the mechanism by which the autophagosome forms is unknown.
Livia, Wilz, Weiliang, Fan, Qing, Zhong
openaire   +2 more sources

Sensing Membrane Curvature in Macroautophagy [PDF]

open access: yesJournal of Molecular Biology, 2017
In response to intracellular stress events ranging from starvation to pathogen invasion, the cell activates one or more forms of macroautophagy. The key event in these related pathways is the de novo formation of a new organelle called the autophagosome, which either surrounds and sequesters random portions of the cytoplasm or selectively targets ...
Nathan, Nguyen   +2 more
openaire   +2 more sources

Modeling curvature-dependent subcellular localization of the small sporulation protein SpoVM in Bacillus subtilis. [PDF]

open access: yesPLoS ONE, 2015
Recent in vivo experiments suggest that in the bacterium, Bacillus subtilis, the cue for the localization of the small sporulation protein, SpoVM, an essential factor in spore coat formation, is curvature of the bacterial plasma membrane.
Vaibhav Wasnik   +2 more
doaj   +1 more source

Amphipathic helices and membrane curvature [PDF]

open access: yesFEBS Letters, 2009
Numerous data have been collected on lipid‐binding amphipathic helices involved in membrane‐remodeling machineries and vesicular transport. Here we describe how, with regard to lipid composition, the physicochemical features of some amphipathic helices explain their ability to recognize membrane curvature or to participate in membrane remodeling.
Drin, Guillaume, Antonny, Bruno
openaire   +2 more sources

Arf1 and membrane curvature cooperate to recruit Arfaptin2 to liposomes. [PDF]

open access: yesPLoS ONE, 2013
Arfaptin2 contains a Bin/Amphiphysin/Rvs (BAR) domain and directly interacts with proteins of the Arf/Arl family in their active GTP-bound state. It has been proposed that BAR domains are able to sense membrane curvature and to induce membrane tubulation.
Ernesto E Ambroggio   +4 more
doaj   +1 more source

Curvature dependence of BAR protein membrane association and dissociation kinetics

open access: yesScientific Reports, 2022
BAR (Bin/Amphiphysin/Rvs) domain containing proteins function as lipid bilayer benders and curvature sensors, and they contribute to membrane shaping involved in cell signaling and metabolism.
Rui Jin, Rui Cao, Tobias Baumgart
doaj   +1 more source

Membrane curvature controls dynamin polymerization [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
The generation of membrane curvature in intracellular traffic involves many proteins that can curve lipid bilayers. Among these, dynamin-like proteins were shown to deform membranes into tubules, and thus far are the only proteins known to mechanically drive membrane fission.
Roux, Aurelien   +6 more
openaire   +4 more sources

Comparative Study of Curvature Sensing Mediated by F-BAR and an Intrinsically Disordered Region of FBP17

open access: yesiScience, 2020
Summary: Membrane curvature has emerged as an intriguing physical principle underlying biological signaling and membrane trafficking. The CIP4/FBP17/Toca-1 F-BAR subfamily is unique in the BAR family because its structurally folded F-BAR domain does not ...
Maohan Su   +6 more
doaj   +1 more source

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