FIG 4.
Expression profiles of each essential gene within the ribF-ileS-lspA-fkpB-ispH operon upon silencing one essential gene. Target regions for expressed antisense sequences specific for individual target genes are indicated by red arrows. Averages ± SD of mRNA levels relative to those of the uninduced control are shown (n = 3). *, P < 0.05; **, P < 0.01.