Figure 6 - full size

 

Figure 6.
Figure 6. An Extrahelical Base in the Minor Groove(A and B) The inserted base (in dark blue) in the type Ab-4B complex is stacked with the template strand (in red and pink).(C and D) The inserted base in the Ab-5 complex is sandwiched between the primer and template strands. Hydrogen bonds, which stabilize the extrahelical base, are shown in (B) and (D).

The above figure is reprinted by permission from Cell Press: Mol Cell (2004, 13, 751-762) copyright 2004.