Consequences of Membrane Topography
2013 (English)In: The FEBS Journal, ISSN 1742-464X, E-ISSN 1742-4658, Vol. 280, no 12, 2775-2784 p.Article, review/survey (Refereed) Published
The surface of mammalian cells is neither smooth nor flat and cells have several times more plasma membrane than the minimum area required to accommodate their shape. We discuss the biological function of this apparent excess membrane that allows the cells to migrate, undergo shape changes and probably plays a role in signal transduction. Methods for studying membrane folding and topography; atomic force microscopy, scanning ion conductance microscopy, fluorescence polarisation microscopy and linear dichroism, are described and evaluated. Membrane folding and topography is frequently ignored when interpreting microscopy data. This has resulted in several misconceptions for instance regarding colocalisation, membrane organisation and molecular clustering. We suggest simple ways to avoid these pitfalls and invoke Occam's razor - that simple explanations are preferable to complex ones. Topography, i. e. deviations from a smooth surface, should always be ruled out as the cause of anomalous data before other explanations are presented.
Place, publisher, year, edition, pages
2013. Vol. 280, no 12, 2775-2784 p.
Cell and Molecular Biology
IdentifiersURN: urn:nbn:se:uu:diva-196481DOI: 10.1111/febs.12209ISI: 000320037900006PubMedID: 23438106OAI: oai:DiVA.org:uu-196481DiVA: diva2:610250