FIG. 1.
Genetic organization of the choE region and transcriptional analysis of choE. (A) Physical map of the 3.9-kb chromosomal region encompassing the choE locus of R. equi. The location of the putative choE promoter and stem-loop transcription terminator is indicated. (B) Northern blot analysis of choE in strains R. equi MAD (left) and 103− (right). In both strains, a single 1.9-kb transcript was detected.