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Biochim Biophys Acta. 2015 Sep;1848(9):1783-95. doi: 10.1016/j.bbamem.2015.03.029. Epub 2015 Apr 1.

The influence of cholesterol on membrane protein structure, function, and dynamics studied by molecular dynamics simulations.

Author information

1
Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
2
Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark. Electronic address: birgit@chem.au.dk.

Abstract

The plasma membrane, which encapsulates human cells, is composed of a complex mixture of lipids and embedded proteins. Emerging knowledge points towards the lipids as having a regulating role in protein function. Furthermore, insight from protein crystallography has revealed several different types of lipids intimately bound to membrane proteins and peptides, hereby possibly pointing to a site of action for the observed regulation. Cholesterol is among the lipid membrane constituents most often observed to be co-crystallized with membrane proteins, and the cholesterol levels in cell membranes have been found to play an essential role in health and disease. Remarkably little is known about the mechanism of lipid regulation of membrane protein function in health as well as in disease. Herein, we review molecular dynamics simulation studies aimed at investigating the effect of cholesterol on membrane protein and peptide properties. This article is part of a Special Issue entitled: Lipid-protein interactions.

KEYWORDS:

Amyloid peptide; Cholesterol; Lipid–protein interaction; MD simulation; Membrane protein

PMID:
25839353
DOI:
10.1016/j.bbamem.2015.03.029
[Indexed for MEDLINE]
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