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Computer model of LexA dimer bound to the preferred operator sequence CGAACATATGTTCG. A second LexA monomer was docked on the preferred operator sequence in the same orientation as shown in Figure 6. Side view (A) and top view (B) of the model of the LexA dimer bound to DNA show that distortion of the DNA and/or LexA must occur for the C-terminal domains to interact effectively.
