Comparison of promoter sequences of five PEP promoters in Nicotiana tabacum , Cuscuta reflexa and Cuscuta gronovii. Double lines indicate the consensus motifs of the -10 and -35 boxes typical of plastid PEP promoters. Other conserved regions are marked with a single black line. The distance in nucleotides between the transcription start (indicated by a rightward arrow) and the translation start (ATG) is given. Black dots represent residues that are identical to the nucleotides of N. tabacum shown at the top.