FIG. 1.

Mapping the transcription start points (TSP) of the emp, vwb, and eap promoters (modified from Harraghy et al. [19], with permission of the publisher). (A) The TSP of the vwb, emp, and eap promoters were mapped by primer extension analysis as described in reference 19. (B) Putative −35 and −10 elements were identified by visual inspection of the region upstream of the TSP and are shown in bold. The COS is highlighted.