Figure 4 - full size

 

Figure 4.
Figure 4 Stereoview illustrating domain closure in EcUDG. Domain 1 of the free enzyme (dark) and that of the enzyme complexed with single-stranded DNA (light) are superposed. The axis about which the molecule has to rotate to bring domain 2 into superposition is perpendicular to the figure and is indicated by a ball.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2002, 58, 1269-1276) copyright 2002.