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VacA s-region nucleotide sequence alignment. DNA sequence alignment of obtained vacA s-region. The vacA type s1a and s1b sequences are shaded in grey. Reference sequences are indicated with NCBI accession number [GenBank:AY185128] – s1a, [GenBank:AB057107] – s1c, [GenBank:AB057223] – s1b, and [GenBank:AY438687] – s2. Dots indicate nucleotide sequence identical to the one above and gaps indicate deletions. The gaps in the reference sequence are indicated by dashes.
