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Physalis mottle virus capsid
Physalis mottle virus capsid, molecular model. This virus is named for its infection of plants in the Physalis genus, which includes the groundcherries. The virus causes discolouration. In viruses, the capsid is the protein shell that encloses the genetic material. A capsid consists of subunits called capsomeres that self-assemble to form the shell seen here. Here, this shell, approximately spherical in shape, has icosahedral symmetry. One of the functions of the capsid is to aid the transmission of the viral genetic material into host cells. The cell mechanisms are then used to produce new virus particles.
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