Figure 2.

Alignment of the alternative exon of Arabidopsis TFIIIA to Arabidopsis 5SrRNA. The alternative exon sequence is represented within Gen-Bank accession NM_105863 from nucleotide position 380 to 479. Regions corresponding to 5SrRNA secondary structure features are depicted above the sequence segment in which they are found. Elements are named according to the standard 5S rRNA nomenclature: helices are designated by roman numerals (III–V) in colored boxes; loop regions are designated by letters (C–E) in open boxes.