Figure 5.

The Unc104 catalytic core rotates by ∼5° during the ATPase cycle. Thin slices of the catalytic cores of (A) Unc104₄₄₆ and (B) Unc104₃₆₂ in the AMPPNP (red) and ADP (blue) maps superimposed to show the small ∼5° rotation between these two nucleotide states. Solid red and dotted blue lines indicate the approximate orientation of the long axes of the catalytic core in the two states. The arrows indicate the rotational relationship between the Unc104 catalytic cores in the two nucleotide states.