Figure 3
(a) Overall structure of Kif78–347 in complex with Mg2+ADP (ball-and-stick model). α-Helices are shown in blue, β-strands are coloured red and loop regions are shaded in grey. The switch II cluster (helix α4/loop L12/helix α5) and the end of helix α6 preceding the neck linker region (not visible in this structure), which are thought to be pivotal for force generation in kinesins, are coloured orange. (b) Stereo-plot of helix α2 residues 128–132. The 2Fo − Fc map (coloured in blue) is contoured at 1σ. A single mutation in this region (L130P) causes embryonic lethality in mice. |