Echovirus 7 capsid, molecular model. Echoviruses are related to the polioviruses. They are usually harmless but can cause serious illness such as ence


Echovirus 7 capsid, molecular model. Echoviruses are related to the polioviruses. They are usually harmless but can cause serious illness such as encephalitis, meningitis, heart and liver disease. 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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Photo credit: © LAGUNA DESIGN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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