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GrainGenes Reference Report: CUG-24-344

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Reference	CUG-24-344
Title	RNA editing of apocytochrome b (cob) transcripts in mitochondria from two genera of plants
Journal	Current Genetics
Year	1993
Volume	24
Pages	344-348
Author	Zanlungo S Begu D Quinones V Araya A Jordana X
Abstract	Editing of the complete coding region of cob transcripts from two genera of plants has been studied by cDNA sequence analysis Eighteen and nine C residues are edited into U in the mitochondrial transcripts from wheat and potato respectively Both systems share eight common editing sites; ten codons edited in wheat are 'pre-edited' at the genomic level in potato, and one codon edited in potato is 'pre-edited' in wheat Most amino-acid modifications lead to hydrophobic residues and increase the homology between the COB polypeptides and the corresponding protein of other species In two out of the nine potato cDNA clones, an additional C-to-T modification, which also leads to a change in the encoded amino acid, was identified. Heterogeneity observed at the carboxy-terminus of the COB open reading frame in Triticum aestivum and Triticum timopheevi is not corrected by editing.
Keyword	[ Hide all but 1 of 12 ] apoproteins cob gene cytochrome-b messenger rna mitochondria mitochondrial genetics rna-editing solanum-tuberosum structural genes triticum triticum aestivum triticum timopheevi

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