Abstract
The rudimentary genetic system of mitochondria retains only a few components of its ancestral prokaryotic genetic system. This physically and functionally distinct organellar genetic system is completely dependent upon the nucleus, since it produces only the tRNAs and rRNAs and almost none of the proteins required for a minimal protein synthesis system or for DNA replication and gene expression. The mitochondrial genome encodes mainly a few hydrophobic proteins, components of the inner mitochondrial respiratory membrane, and the genes for most other mitochondrial proteins, including the majority of the proteins required for the respiratory system, are expressed in the nucleus. Mitochondria are the outcome of one of the major steps of eukaryotic cell evolution, the result of an endosymbiosis with a member of the the α-proteobacteria.
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Brambl, R. (2004). Regulation of Mitochondrial Gene Expression. In: Brambl, R., Marzluf, G.A. (eds) Biochemistry and Molecular Biology. The Mycota, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-06064-3_8
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DOI: https://doi.org/10.1007/978-3-662-06064-3_8
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