Fig. 6: The cargo protein zones.
a, Z-clipped view of the rotationally-averaged virion map. The protein cargo zones are indicated by outlines inside the capsid (yellow) and in the tail barrel (red). Purple arrows indicate locations of structured regions of cargo proteins that are resolved in reconstructions. b–d, Structures of the portal-bound domain of C1 (gp45) (b), the tail barrel-bound region of C1 (c) and the muzzle-bound cargo protein fragment (d) are shown with the corresponding density maps (transparent grey). e, Schematic of cargo protein locations inside the virion. Proteins (purple) are stored in the cargo zones located in the tail (T) and capsid (C). IM, inner membrane; OM, outer membrane.
