Fig. 2
From: The pore structure of Clostridium perfringens epsilon toxin

Cryo-electron microscopy (EM) of epsilon toxin (Etx) pores using the Volta phase plate. a Electron micrograph of a typical field of view of isolated Etx pores. Particles that were included in the final 3D map are highlighted. b Characteristic 2D class averages. Sharpened cryo-EM map of the pore coloured by monomer as visualized from the side (c) and extracellular (d) views. Scale bar corresponds to 50 nm