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. 2016 Mar 31;8(4):96. doi: 10.3390/toxins8040096

Figure 6.

Figure 6

Comparison of (a) the repressor sequences and promoter architectures of Stx+ (933W and BAA2326) and Stx− (λ and 434) phages. (a) Multiple sequence alignments were performed using M-Coffee [47]. Alignment is formatted using BOXSHADE ([48]). Amino acids conserved in two of the four proteins are shaded black. Similar amino acids in two of the four proteins are shaded gray. (b) The positions of the operators (boxes) and −35 and −10 promoter elements (underlined) and PRM transcription start sites (bent arrows) in the OR regions of phages 434 [33], λ [43], 933W [46], and BAA2326 [32] are indicated.