FIG. 5.

Alignment of terminator sequences detected in various Bacillus strains. The upper terminator consensus is derived from the previously identified chromosomal terminators of B. subtilis 168 and W23 (14); the lower one takes into account those from the other Bacillus species. The position of overlap between the A and B sites is indicated by the rectangle. The asterisks indicate the centers of pseudosymmetry within the A and B sites, and the arrows above the consensus sequences represent regions of symmetry in the B site. Nucleotides most favored by the 17 terminators now described are shown in boldface; when there are up to only two identical variations this is shown in the consensus sequences in smaller type below the bold.