5' Editing of cytochrome b mRNA 3'-[U]aUaUaaaagaGUaCaaUUUggaaaCaa- |||:||||:||:| |||:|::|||||| AUAAAUUUAAUUUAAAUUUUAAAUAAUUAUAAAuAuGuuuuuuCGuGuuAGAuuuuuGuu- M F F R V R F L L UgaaaaaAAUAAUAAAUCUUUUC-5' |:||||||||||||||||||| [U]AUAUUCaaUaaUaaaUUUUUaaaUaUaaUaGaAAAUUGAAGUUCAGUAUACAC-5' ||||||||||||||||:||:|||||||||||||:||::| AuuuuuuuuAuuAuuuAGAAAuuuAuGuuGuCuUUUAACUUCAGGUUGUUUAUUACGAGU... F F L L F R N L C C L L T S G C L L R V ...