Figure 2.

Representative structures of the 6-His-MVP mutant. Electron micrographs of uranyl acetate stained supernatants of lysates from infected Sf9 cells. (A) Wild-type MVP vaults with a close-up view from its red inset. (B) Staggered rolls of MVP chains. Close-up view of the rolls aligned with a vault particle from the crystal structure.¹⁰ The vault cap (C), shoulder (S), and waist (W) regions are indicated by white dashed lines. (C) Long sheet of an unraveled MVP roll. Close-up view of the sheet superimposed with several individual MVP chains from the crystal structure.