Figure 2. Alignment of the partial cps promoter sequences from the 22 WZY-dependent IPD types.

The region covering the RUP, spacing sequence, and core promoter modules were aligned with the sequences from the strains illustrated in Fig. 1A by the Cluster W method⁵⁸. The IE module is not fully presented due to their extensive sequence differences and space limit. Partial IE module is included for each of the strains lacking the RUP module immediately upstream of the SS module. The promoter motifs (−10 and −35), transcriptional start site identified in type-2 strain D39¹², cpsA start codon (SC) were indicated at the both of the second panel.