CAP and RNA polymerase bind next to each other

Figure 11-16: The control region of the lac operon. The base sequence and the genetic boundaries of the control region of the lac operon, with partial sequences for the structural genes.
[Data from R. C. Dickson, J. Abelson, W. M. Barnes, and W. S. Reznikoff, “Genetic Regulation: The Lac Control Region,” Science 187, 1975, 27.]