Figure 5

Genome structures and gene expression profiles of B. infantis npoxA and ahpC. (A) Genome structure of the npoxA (upper) and the ahpC (lower). (B) Northern blot analyses of 5 µg of B. infantis total RNA probed with npoxA or ahpC. 0, immediately before the start of aeration with 5% O2 in the mid-exponential phase; 10, after 10 min; 30, after 30 min. The estimated sizes of the observed transcripts are indicated on the right. Ethidium bromide staining of the ribosomal RNA (rRNA) to confirm equal RNA loading is shown below the autoradiogram. The membranes were reused for reprobing different probes.