Please use this identifier to cite or link to this item: https://doi.org/10.1016/S1937-6448(08)02006-6
Title: Chapter 6 Cubic Membranes. The Missing Dimension of Cell Membrane Organization
Authors: Almsherqi, Z.A. 
Deng, Y. 
Landh, T.
Kohlwein, S.D.
Issue Date: 2009
Source: Almsherqi, Z.A., Deng, Y., Landh, T., Kohlwein, S.D. (2009). Chapter 6 Cubic Membranes. The Missing Dimension of Cell Membrane Organization. International Review of Cell and Molecular Biology 274 (C) : 275-342. ScholarBank@NUS Repository. https://doi.org/10.1016/S1937-6448(08)02006-6
Abstract: Biological membranes are among the most fascinating assemblies of biomolecules: a bilayer less than 10 nm thick, composed of rather small lipid molecules that are held together simply by noncovalent forces, defines the cell and discriminates between "inside" and "outside", survival, and death. Intracellular compartmentalization-governed by biomembranes as well-is a characteristic feature of eukaryotic cells, which allows them to fulfill multiple and highly specialized anabolic and catabolic functions in strictly controlled environments. Although cellular membranes are generally visualized as flat sheets or closely folded isolated objects, multiple observations also demonstrate that membranes may fold into "unusual", highly organized structures with 2D or 3D periodicity. The obvious correlation of highly convoluted membrane organizations with pathological cellular states, for example, as a consequence of viral infection, deserves close consideration. However, knowledge about formation and function of these highly organized 3D periodic membrane structures is scarce, primarily due to the lack of appropriate techniques for their analysis in vivo. Currently, the only direct way to characterize cellular membrane architecture is by transmission electron microscopy (TEM). However, deciphering the spatial architecture solely based on two-dimensionally projected TEM images is a challenging task and prone to artifacts. In this review, we will provide an update on the current progress in identifying and analyzing 3D membrane architectures in biological systems, with a special focus on membranes with cubic symmetry, and their potential role in physiological and pathophysiological conditions. Proteomics and lipidomics approaches in defined experimental cell systems may prove instrumental to understand formation and function of 3D membrane morphologies. © 2009 Elsevier Inc. All rights reserved.
Source Title: International Review of Cell and Molecular Biology
URI: http://scholarbank.nus.edu.sg/handle/10635/25002
ISBN: 9780123748058
ISSN: 19376448
DOI: 10.1016/S1937-6448(08)02006-6
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