Lipid-GPCR interactions in an asymmetric plasma membrane model.

ABSTRACT: We report simulations and analysis of the A_2A adenosine receptor in its fully active state, in two different membrane environments. The first is a model in which the lipids are distributed asymmetrically according to recent lipidomics, simulations, and biophysical measurements, which together establish the distribution of lipids and cholesterol between the two leaflets. The second is the symmetrized version, which captures the membrane state following loss of lipid asymmetry. By comparing lipid-protein interactions between these two cases we show that solvation by phosphatidyl serine (PS) is insensitive to the loss of asymmetry-an abundance of positively charged sidechains around the cytoplasmic side of the receptor enriches solvation by PS in both membrane states. Cholesterol i

SUBMITTER: Ji J 

PROVIDER: S-EPMC12061045 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature