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Sequence of vmp Ex in wild‐type Borrelia hermsii and the UHS mutant. The upstream homology sequence (UHS) of the wild‐type (WT) vmp Ex is shown with the sequence of the mutated UHS (Mut). The transcriptional start site (+1), ribosomal binding site (RBS, underlined), and amino acid codons are depicted at top. Sites of conserved 4‐mer and 6‐mer palindromes are highlighted in gray. The −10 and −35 promoter elements are outside of the putative UHS boundaries and were not altered
