Figure 1 - full size

 

Figure 1.
Fig. 1. RT-DNA tethering reaction. Chemistry of disulfide bond formation between the side chain of an engineered cysteine residue (blue) in helix H (gold) of RT to a thiol group in the minor groove of DNA (activated as the mixed disulfide), which is tethered to N2 of a dG (green) in the template:primer.

The above figure is reprinted by permission from the AAAs: Science (1998, 282, 1669-1675) copyright 1998.