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The protein-import apparatus of plant mitochondria
1Institut für Angewandte Genetik, Universität Hannover, Herrenhäuserstr. 2, D-30419 Hannover, Germany. hans-peter.braun@mbox.genetik.uni-hannover.de
Abstract:
The import and assembly of mitochondrial proteins synthesized in the cytosol is mediated by the protein-import apparatus which plays a central role in mitochondrial biogenesis. Ten years ago only some components of the protein-import apparatus from fungi and mammals were characterized, but today its major components have been analyzed at the molecular level also in plants. Interestingly there are specific features which distinguish the protein-import apparatus of plants from that of fungi and mammals. Here we give an overview of all known components of the protein-import apparatus from plants and focus on its differences in comparison to heterotrophic eukaryotes.