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![[Figure 1]](nz5012fig1mag.jpg)
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Figure 1
Comparison of the immunity regions of bacteriophage λ and E. coli O157:H7 prophage CP-933P. Genes are shown as arrows, with the direction of the arrow indicating the direction of transcription. Promoters of λ and their CP-933P equivalents are indicated. The three repressors are coloured grey, while other neighbouring phage genes are white. The toxin–antitoxin genes parE2 and paaA2 in CP-933P are coloured black and replace rexB and rexA, respectively, in λ. The border sequence of the interface between the ydaS and ydaT genes is highlighted and the three YdaT binding sites OL, OM and OR are boxed in grey and labelled. The OM sequence also contains an alternative transcription start for the paaR2–paaA2–parE2 operon that is controlled via YdaT (Jurėnas et al., 2021  ). |
![[Figure 1]](nz5012fig1.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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