Fig. 1: Cryo-EM structure of Milano neck.
From: Neck and capsid architecture of the robust Agrobacterium phage Milano
a Schematic of structural organization of Milano neck. The covalent connection between the neck 1 lumen protrusion loop and the tail sheath through the collar is indicated by the red dashed line. b Milano consists of stacked protein rings having different symmetries. The portal, neck 1, neck 2/tail terminator and collar has C12, pseudo-C12, C6 and C15 symmetry, respectively. Tail terminator connects the neck to the C6 tail tube and tail sheath. The C12 portal ring is embedded into the capsid at the 5-fold portal vertex. c Enlarged view of portal, neck 1, neck 2, collar and tail terminator rings with their component subunits colored blue to red, N- to C-terminal.
