Model of regulation in the K. pneumoniae Kp13 cps cluster. Only selected genes are shown. The promoters are depicted as upside-down triangles, and the JUMPStart element is shown as a hexagon. The rectangles under each cluster represent transcriptional units, and the stems are possible Rho-independent attenuators. P3 could either drive the transcription of rmlB through orf19 or there could be other promoters (P4, P5 or P6). The possible transcriptional units are depicted.