Figure 7From: Isolation and characterization of Ehrlichia chaffeensis RNA polymerase and its use in evaluating p28 outer membrane protein gene promotersTranscription of pRG198 with varying potassium acetate concentrations showing transcription by E. chaffeensis RNAP saturated with the recombinant σ70 and by E. coli core RNAP reconstituted with recombinant σ70.Back to article page