Figure 3. (a) Locations of restriction enzyme recognition sites within a ~2.54 kb sequenced portion of the RI-1 DNA fragment predicted by the Sequencher 3.0 program. (b) DNA sequence of the RI-1 open reading frame and an immediately preceding region (539 nt) containing putative poxvirus early transcriptional stop (TTTTTnT) and late promoter (TAAATG) sequences (highlighted in black). Restriction enzyme recognition sites, shown in (a), are underlined. The putative translational stop codon (TAA) is indicated by an asterisk (*). The sequence has been assigned GeneBank accession # EF541029.