Figure 5. The paired domain of PAX6. A: Sketch of the PAX6 paired domain–DNA complex. Cylinders represent α helices; arrows represent β strands. Helices 1–6 are labeled; residue numbers indicate termini of the corresponding secondary structure elements. B: Cn3D display for the paired domain of PAX6. The yellow segment represents the mutation region (COOH-terminal region in PAX6 paired domain).