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Sequence alignments of the viral attP sites and host tRNA genes. (A) Alignment of the sequence around the SSV RH attP site and the fifth leucine (L5) tRNA gene of S. solfataricus P2. (B) Multiple alignment of the sequence around the SSV K1 attP site, the aspartic acid tRNA gene (D), the first glutamic acid tRNA gene (E1), and the second glutamic acid tRNA gene (E2). Sequence variations are indicated by shading.
