Alignments of complete amino acid sequences from You and I elements ORF1 and ORF2. (a) ORF1; (b) ORF2. Identical residues are highlighted in black, similar residues are in light gray. Alignment and shading was performed with VectorNTI software. The sequence of I is from accession number M14954 corrected according to , the sequence of You is from AL03893 (coordinates 1-5255) and AL022018 (coordinates 38180-38397) assembled manually.