Sequence dependence of tRNA(Gly) import into tobacco mitochondria
Plant mitochondrial genomes lack a number of tRNA genes and the corresponding tRNAs, which are nuclear-encoded, are imported from the cytosol. We show that specific import of tRNA(Gly) isoacceptors occurs in tobacco mitochondria: tRNA(Gly)(UCC) and tRNA(Gly)(CCC) are cytosolic and mitochondrial, whi...
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| Veröffentlicht in: | Biochimie 2005-09, Vol.87 (9-10), p.863-872 |
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| container_issue | 9-10 |
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| container_title | Biochimie |
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| creator | Salinas, Thalia Schaeffer, Cécile Maréchal-Drouard, Laurence Duchêne, Anne-Marie |
| description | Plant mitochondrial genomes lack a number of tRNA genes and the corresponding tRNAs, which are nuclear-encoded, are imported from the cytosol. We show that specific import of tRNA(Gly) isoacceptors occurs in tobacco mitochondria: tRNA(Gly)(UCC) and tRNA(Gly)(CCC) are cytosolic and mitochondrial, while tRNA(Gly)(GCC) is found only in the cytosol. Exchange of sequences between tRNA(Gly)(UCC) and tRNA(Gly)(GCC) shows that the anticodon and D-domain are essential for tRNA(Gly)(UCC) import. However the reverse mutations in tRNA(Gly)(GCC) are not sufficient to promote its import into tobacco mitochondria. |
| doi_str_mv | 10.1016/j.biochi.2005.04.004 |
| format | Article |
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We show that specific import of tRNA(Gly) isoacceptors occurs in tobacco mitochondria: tRNA(Gly)(UCC) and tRNA(Gly)(CCC) are cytosolic and mitochondrial, while tRNA(Gly)(GCC) is found only in the cytosol. Exchange of sequences between tRNA(Gly)(UCC) and tRNA(Gly)(GCC) shows that the anticodon and D-domain are essential for tRNA(Gly)(UCC) import. 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| ispartof | Biochimie, 2005-09, Vol.87 (9-10), p.863-872 |
| issn | 0300-9084 |
| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Anticodon Base Sequence Cytosol - metabolism Gene Expression Regulation, Plant Mitochondria - metabolism Mutation Nicotiana - genetics Nicotiana - metabolism Plants, Genetically Modified RNA Transport - genetics RNA, Transfer, Gly - chemistry RNA, Transfer, Gly - metabolism Transfer RNA Aminoacylation |
| title | Sequence dependence of tRNA(Gly) import into tobacco mitochondria |
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