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VacA m-region protein sequence alignment. Alignment of deduced amino acid sequence, translated from the obtained vacA m-region DNA sequences. Samples with m2 genotype are shaded in grey. Reference sequence [GenBank:U05675] (m1) and [GenBank:U29401] (m2) are obtained from Rhead et al. [16]. Dots indicate identical nucleotide sequences and gaps indicate nucleotide deletions.
