Fig 4.

Analysis of the yaf-ltgX intergenic region. The intergenic region between yaf and ltgX contains the oriT and likely promoters for the transcript starting with yaf and the transcript starting with ltgX. The oriT is drawn as a stem-loop, and promoters are drawn as elevated arrows on the map. The yaf promoter is likely defective in meningococci due to a 2-bp deletion in the spacer region between the putative −10 and −35 sites. The oriT and the ltgX promoter are conserved between gonococci and meningococci. The meningococcal sequence shown is 100% identical in seven strains we sequenced.