Membrane biogenesis in anoxygenic photosynthetic prokaryotes |
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Authors: | Drews Gerhart Niederman Robert A. |
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Affiliation: | 1.Institut für Biologie 2, Mikrobiologie, Albert-Ludwigs-Universit?t, Sch?nzlestrasse 1, D-79104, Freiburg, Germany ;2.Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, 08854-8082, USA ; |
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Abstract: | Following the discovery of photosynthetic bacteria in the nineteenth century, technical developments of the 1950s led to their use in membrane biogenesis studies. These investigations had their origins in the isolation of subcellular particles designated as ‘chromatophores’ by Roger Stanier and colleagues, which were shown to be photosynthetically competent by Albert Frenkel, and to originate from the intracytoplasmic membrane (ICM) continuum observed in electron micrographs. These ultrastrucutral studies by the G. Drews group, Germaine Cohen-Bazire and others also suggested that the ICM originates by invagination of the cytoplasmic membrane, as later established in the biochemical and biophysical work of the R. Niederman and Drews groups. Through a combination of genetic approaches, first introduced in the early 1980s by Barry Marrs, and the atomic resolution structures determined for light-harvesting antennae and reaction centers, a detailed understanding is emerging of mechanisms regulating their levels in the membrane and the roles played by specific protein domains and additional factors in their assembly and supramolecular organization. Prospects for additional progress during the twenty-first century include further elucidation of molecular aspects of the assembly process and the application of newer spectroscopic probes to photosynthetic unit formation. This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | G. Cohen-Bazire light harvesting complexes B.L. Marrs membrane development H. Molisch D. Oesterhelt photosynthetic bacteria photosynthetic membranes reaction center complexes R.Y. Stanier. C.B. van Niel |
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