Figure 1.

Structures of dmRab2^Q65L and dmRab3^Q80L drawn in cartoon representation. α-­Helices are coloured blue, β-strands salmon and connecting loop regions brown. The bound GMPPNP is shown in stick representation, as are the Mg²⁺-coordinating residues. The octahedrally coordinated Mg²⁺ is depicted as a black sphere and coordinating water molecules as red spheres. Grey dashed lines indicate the coordination sphere of Mg²⁺. (a) Structure of dmRab2^Q65L; (b) structure of dmRab3^Q80L.