Nonuniversal impact of cholesterol on membranes mobility, curvature sensing and elasticity

M Pöhnl, MFW Trollmann, RA Böckmann - Nature Communications, 2023 - nature.com
Biological membranes, composed mainly of phospholipids and cholesterol, play a vital role
as cellular barriers. They undergo localized resha** in response to environmental cues …

Determination of bending rigidity and tilt modulus of lipid membranes from real-space fluctuation analysis of molecular dynamics simulations

M Doktorova, D Harries, G Khelashvili - Physical Chemistry Chemical …, 2017 - pubs.rsc.org
We have recently developed a novel computational methodology (termed RSF for Real-
Space Fluctuations) to quantify the bending rigidity and tilt modulus of lipid membranes from …

A new computational method for membrane compressibility: Bilayer mechanical thickness revisited

M Doktorova, MV LeVine, G Khelashvili, H Weinstein - Biophysical journal, 2019 - cell.com
Because lipid bilayers can bend and stretch in ways similar to thin elastic sheets, physical
models of bilayer deformation have utilized mechanical constants such as the moduli for …

[HTML][HTML] Membrane characteristics tune activities of endosomal and autophagic human VPS34 complexes

Y Ohashi, S Tremel, GR Masson, L McGinney… - Elife, 2020 - elifesciences.org
The lipid kinase VPS34 orchestrates diverse processes, including autophagy, endocytic
sorting, phagocytosis, anabolic responses and cell division. VPS34 forms various …

Buckling under pressure: curvature-based lipid segregation and stability modulation in cardiolipin-containing bilayers

KJ Boyd, NN Alder, ER May - Langmuir, 2017 - ACS Publications
Mitochondrial metabolic function is affected by the morphology and protein organization of
the mitochondrial inner membrane. Cardiolipin (CL) is a unique tetra-acyl lipid that is …

Lipid bicelles in the study of biomembrane characteristics

M Pöhnl, C Kluge, RA Böckmann - Journal of Chemical Theory …, 2023 - ACS Publications
Simulations of lipid membranes typically make use of periodic boundary conditions to mimic
macroscopically sized membranes and allow for comparison to experiments performed eg …

Confinement in nanodiscs anisotropically modifies lipid bilayer elastic properties

I Schachter, C Allolio, G Khelashvili… - The Journal of Physical …, 2020 - ACS Publications
Lipid nanodiscs are small synthetic lipid bilayer structures that are stabilized in solution by
special circumscribing (or scaffolding) proteins or polymers. Because they create native-like …

BUMPy: a model-independent tool for constructing lipid bilayers of varying curvature and composition

KJ Boyd, ER May - Journal of chemical theory and computation, 2018 - ACS Publications
Molecular dynamics is a powerful tool to investigate atomistic and mesoscopic phenomena
in lipid bilayer systems. These studies have progressed with the advent of increased …

Morphological influence on a nonionic bilayer bending rigidity and compression modulus

L Gentile - Langmuir, 2024 - ACS Publications
The mechanical properties of multilamellar vesicles and their relevance to soft matter
physics and material science are of significant interest. The bending rigidity, κ, and …

Mitochondrial membrane model: lipids, elastic properties, and the changing curvature of cardiolipin

S Konar, H Arif, C Allolio - Biophysical Journal, 2023 - cell.com
Mammalian and Drosophila melanogaster model mitochondrial membrane compositions
are constructed from experimental data. Simplified compositions for inner and outer …