Fig. 5.

Superimposed docking complexes of the 1,4-AQ 17, the 9,10-AQ 21 and CPT (left column) and BAcQ 25 and CPT (right column) with DNA-LTopIB complex. Structures are colored according to Fig. 3, Fig. 4. Images in the bottom row represent the CPT as a surface to better observe the arrangement of the three different quinones 17, 21 and 25 in the space delimited by the docked reference drug.