The impact of physiologically relevant temperatures on physical properties of thylakoid membranes: a molecular dynamics study.

ABSTRACT: Thylakoid membranes are energy-converting membranes with a unique lipid composition. Though the membranes are primarily composed of proteins, their photosynthetic function is strongly influenced by the lipid constituents. Here we characterize, with molecular dynamics (MD) simulations, lipid bilayers with compositions representative of plant thylakoid membranes. We determine, in a wide range of temperatures, the physical parameters of the model membranes which are relevant for the photosynthetic function. We found a marked impact of temperature on membrane permeability due to a combination of increased compressibility and curvature of the membrane at elevated temperatures. With increasing temperatures, we observed increasingly smeared transmembrane density profiles of the membrane forming l

SUBMITTER: Feher B 

PROVIDER: S-EPMC11586842 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature