Figure 9.

Rta-c/Oct-v motif is necessary for optimal transactivation of the ORF50AS/K-bZIP promoter by Rta. WT and mutant reporters were tested for Rta transactivation using the approach described in the legend to Fig. 8, A and B. The sequence of the Rta-c/Oct-v motif in the ORF50AS/K-bZIP promoter is shown at top. Mutated bps are indicated by lowercase lightface type. A, basal activity of promoter/reporters. B, fold transactivation by Rta. Thick lines indicate means of values, and thin lines indicate standard errors.