<i>mbo</i> operon promoter region.

<p>The non-coding region (603 bp), which contains the promoter sequences of the <i>mbo</i> operon. The nucleotide sequences of putative promoter P<i>_mboI</i> and P<i>_mboII</i> (indicated in purple and green, respectively) showing the proposed -10 box, -35 box and the TF binding sites; the nucleotide position is also indicated. The putative SD sequence of <i>mboA</i> is shown in bold type. The position of the first nucleotide to be transcribed was determined by 5′-RACE experiments and labelled as +1 in bold type; the transcription direction is also indicated (→).