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  • Title: Plant mitochondrial RNA editing: the Strasbourg chapter.
    Author: Grienenberger JM.
    Journal: IUBMB Life; 2009 Dec; 61(12):1110-3. PubMed ID: 19946900.
    Abstract:
    For 8 years, it was not understood why certain genes of plant mitochondria contain CGG (arginine) codons at positions where tryptophan codons (UGG) are present in the corresponding genes of nonplant species. Identification and sequencing of a tRNA(Trp) gene showed that it is not able to decode the CGG codon. Analysis of different discrepancies in the sequences of plant mitochondrial proteins prompted us to determine directly the corresponding RNA sequences. These experiments showed that plant mitochondrial transcripts are subject to RNA editing that changes C into U, resulting in a better phylogenetic conservation of protein sequences [Gualberto et al. (1989) Nature 341, 660-662].
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