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The Role of Lipid Domains in Bacterial Cell Processes
Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, Bratislava 84551, Slovakia
* Author to whom correspondence should be addressed.
Received: 31 December 2012; in revised form: 25 January 2013 / Accepted: 28 January 2013 / Published: 18 February 2013
Abstract: Membranes are vital structures for cellular life forms. As thin, hydrophobic films, they provide a physical barrier separating the aqueous cytoplasm from the outside world or from the interiors of other cellular compartments. They maintain a selective permeability for the import and export of water-soluble compounds, enabling the living cell to maintain a stable chemical environment for biological processes. Cell membranes are primarily composed of two crucial substances, lipids and proteins. Bacterial membranes can sense environmental changes or communication signals from other cells and they support different cell processes, including cell division, differentiation, protein secretion and supplementary protein functions. The original fluid mosaic model of membrane structure has been recently revised because it has become apparent that domains of different lipid composition are present in both eukaryotic and prokaryotic cell membranes. In this review, we summarize different aspects of phospholipid domain formation in bacterial membranes, mainly in Gram-negative Escherichia coli and Gram-positive Bacillus subtilis. We describe the role of these lipid domains in membrane dynamics and the localization of specific proteins and protein complexes in relation to the regulation of cellular function.
Keywords: lipid domains; bacterial cell division; sporulation; cardiolipin; phosphatidylglycerol
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MDPI and ACS Style
Barák, I.; Muchová, K. The Role of Lipid Domains in Bacterial Cell Processes. Int. J. Mol. Sci. 2013, 14, 4050-4065.
Barák I, Muchová K. The Role of Lipid Domains in Bacterial Cell Processes. International Journal of Molecular Sciences. 2013; 14(2):4050-4065.
Barák, Imrich; Muchová, Katarína. 2013. "The Role of Lipid Domains in Bacterial Cell Processes." Int. J. Mol. Sci. 14, no. 2: 4050-4065.