PCIS1, Encoded by a Pentatricopeptide Protein Co-expressed Gene, Is Required for Splicing of Three Mitochondrial nad Transcripts in Angiosperms.

Abstract excerpt

Group II introns are large catalytic RNAs, which reside mainly within genes encoding respiratory complex I (CI) subunits in angiosperms' mitochondria. Genetic and biochemical analyses led to the identification of many nuclear-encoded factors that facilitate the splicing of the degenerated organellar introns in plants. Here, we describe the analysis of the pentatricopeptide repeat (PPR) co-expressed intron...

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