Figure 3.

Examples of cDNA analyses for RNA editing: atp9 (A), nad7 (B) and trnP (C). (A) Yellow and magenta shading indicate changes introduced through C-to-U or U-to-C editing events in the atp9 mRNA. (B) The degree of partial editing of nad7 transcripts was investigated with 30 cDNA clones covering the complete reading frame of 397 codons. Black dots indicate codon sense changes, red dots the removal of stop codons. Twenty of 30 cDNA clones reflected complete editing at all predicted sites, the remaining clones lacked editing at certain positions. (C) Ten expected (red) and eight additional, non-predicted RNA editing sites (cyan) were found in trnP. Numbering of tRNA positions follows the standard convention with numbers after the colons indicating optional nucleotides not present in all tRNAs.