Differential import of nuclear-encoded tRNAGly isoacceptors into solanum Tuberosum mitochondria.


In potato ( Solanum tuberosum ) mitochondria, about two-thirds of the tRNAs are encoded by the mitochondrial genome and one-third is imported from the cytosol. In the case of tRNAGly isoacceptors, a mitochondrial-encoded tRNAGly(GCC) was found in potato mitochondria, but this is likely to be insufficient to decode the four GGN glycine codons. In this work, we identified a cytosolic tRNAGly(UCC), which was found to be present in S.tuberosum mitochondria. The cytosolic tRNAGly(CCC) was also present in mitochondria, but to a lesser extent. By contrast, the cytosolic tRNAGly(GCC) could not be detected in mitochondria. This selective import of tRNAGly isoacceptors into S. tuberosum mitochondria raises further questions about the mechanism under-lying the specificity of the import process.

5 Figures and Tables

Citations per Year

148 Citations

Semantic Scholar estimates that this publication has 148 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{BrubacherKauffmann1999DifferentialIO, title={Differential import of nuclear-encoded tRNAGly isoacceptors into solanum Tuberosum mitochondria.}, author={S Brubacher-Kauffmann and Laurence Marechal-Drouard and Anne Cosset and Andre Dietrich and Anne-Marie Duch{\^e}ne}, journal={Nucleic acids research}, year={1999}, volume={27 9}, pages={2037-42} }