Figure 1. The promoter region and the transcription of the vapBC10 operon.

(A) Schematic representation of the genetic structure of vapBC10. DR, direct repeat sequence; IR, inverted repeat sequence; -10, -35 and the transcriptional starting point (TSP) are underlined. (B) Transcription of vapBC10 determined by RT-PCR analysis using the primers ssr2962-R and slr1767-R1. Lanes: M, molecular weight standard; 1, the genomic DNA; 2, total RNA; 3, cDNA.