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Sequence analyses of the orp1 and orp2 promoters. The −12/−24 elements of the orp1 and orp2 σ54 promoters are indicated by solid-line boxes, and the putative −10/−35 elements of the DVU2106 σ70 promoter are indicated by dashed boxes. The drawing emphasizes the positions of the two putative palindromic DVU2106-binding sequences. The positions and lengths of the probes used for EMSA are indicated by arrows.
