Fig. 7.

Frameshifting region of TVV plus-strand sequences. Multiple sequence alignments for the viruses within each trichomonasvirus species (TVV1, -2, -3, and -4) were performed by the program Clustal 2.0.12, with default settings, at http://www.ebi.ac.uk/Tools/clustalw2. No gaps are present in the illustrated region. Previously reported TVV sequences are shown at the bottom of each set. The positions of the rightmost nucleotide in each line of sequence are indicated at right. The proposed slippery sequence (XXXYYYZ heptanucleotide) in each virus is underlined and colored green. The stop codon defining the 5′ end of the RdRP ORF in each virus is underlined and colored blue. The stop codon defining the 3′ end of the CP ORF in each virus is underlined and colored red.