FIG. 8.

Cross competition of ORF 50 protein binding to the K12 and PAN promoters. The probe was a duplex oligonucleotide derived from the K12 promoter. The competitors were wild-type (WT) K12, K12 5′-D12 (Fig. 3C), wild-type PAN, and a mutant oligonucleotide from the PAN promoter with the same changes as K12-MT (Fig. 7B). The sequences of the competitors are above the EMSA gel. The sequence shared between PAN promoter and K12 promoter is boxed.