In: Journal of Biological Chemistry, 2004, vol. 279, p. 42363-42368
Apicomplexan parasites have the smallest known mitochondrial genome. It consists of a repeated element of ~6–7 kb in length and encodes three mitochondrial proteins, a number of rRNA fragments, but no tRNAs. It has therefore been postulated that in apicomplexans all tRNAs required for mitochondrial translation are imported from the cytosol. To provide direct evidence for this process we have...
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In: Molecular Biology of the Cell, 2004, vol. 15, p. 2750-2757
The mitochondrion of Trypanosoma brucei lacks tRNA genes. Organellar translation therefore depends on import of cytosolic, nucleus-encoded tRNAs. Except for the cytosol-specific initiator tRNAMet, all trypanosomal tRNAs function in both the cytosol and the mitochondrion. The initiator tRNAMet is closely related to the imported elongator tRNAMet. Thus, the distinct localization of the two tRNAsMet...
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