“…In many virus families, the formation of an infectious virus requires that hundreds or thousands of proteins co-assemble with other components, without external guidance or control, into a particular three-dimensional structure [ 1 ]. Viral particles must exit a host cell during or after assembly [ 2 ], target and infect new cells, and hijack the machinery of infected cells to manufacture the components for new viral particles [ 3 , 4 , 5 , 6 , 7 ]. Some viruses completely redesign the interior of their host cell, creating new compartments and complex processes to transport components [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ].…”