Rachel, Reinhard and Engel, A.M. and Huber, R. and Stetter, Karl Otto and Baumeister, W. (1990) A porin-type protein is the main constituent of the cell envelope of the ancestral eubacterium Thermotoga maritima. FEBS Letters 262 (1), pp. 64-68.
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Thermotoga maritima is an extremely thermophilic eubacterium and represents the deepest known branch and the most slowly evolving line within this kingdom. This bacterium possesses a sheath-like envelope which forms characteristic balloons (the ‘toga’) around the cell poles. We have shown by electron microscopy in conjunction with image processing and by biochemical analyses that this sheath is essentially an outer membrane. Its predominant 42 kDa protein, which is regularly arrayed in vivo, has all the characteristics of the trimeric porins known from the phylogenetically very distant proteobacteria. This was an unexpected finding, which has some interesting evolutionary implications.
|Institutions:||Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie > Prof. Dr. Michael Thomm|
|Subjects:||500 Science > 570 Life sciences|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||03 Mar 2010 08:46|
|Last Modified:||03 Mar 2010 08:46|
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