dNTP binding pockets of the unmodified control and 1S-(–)-B[c]Ph-dA intercalation structures of the Dpo4 ternary complexes after 1 ns of MD. Panels A–G are the same as in Figure 2. Color codes: ceiling, pink; floor, red; far wall, dark green; incoming dNTP, purple; tA6–pT13 base pair in B[c]PhDE modified systems, light green; and Mg2+ ions, orange spheres. All stereo images are constructed for viewing with a stereoviewer.