Comparison of lipid dynamics and permeability in styrene-maleic acid and diisobutylene-maleic acid copolymer lipid nanodiscs by electron paramagnetic resonance spectroscopy.

ABSTRACT: Lipid nanoparticles formed with copolymers are a new and increasingly powerful tool for studying membrane proteins, but the extent to which these systems affect the physical properties of the membrane is not completely understood. This is critical to understanding the caveats of these new systems and screening for structural and functional artifacts that might be caused in the membrane proteins they are used to study. To better understand these potential effects, the fluid properties of dipalmitoylphosphatidylcholine lipid bilayers were examined by electron paramagnetic resonance (EPR) spectroscopy with spin-labeled reporter lipids in either liposomes or incorporated into nanoparticles with the copolymers diisobutylene-maleic acid or styrene maleic acid. Lineshape analysis at varying tempe

SUBMITTER: Morris AK 

PROVIDER: S-EPMC12662170 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature