Figure 5 - full size


Figure 5.
The zinc finger motif of Nei. An electron density map is shown around the bound zinc atom [`omit' map at contour levels of 5 [220]{sigma} (blue), and 17 {sigma} (green)]. The four Cys residues (with typical Zn-S bond lengths of 2.28-2.38 ) are shown in a ball-and-stick representation and the two anti-parallel -strands are shown in a ribbon diagram (beige). Superimposed on this region is the corresponding region of the Nei-DNA complex (red), demonstrating a movement of the tip of the zinc finger between the free and the DNA-bound forms of the enzyme.

The above figure is reprinted from an Open Access publication published by Oxford University Press: Nucleic Acids Res (2005, 33, 5006-5016) copyright 2005.