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Chikungunya virus capsid
Chikungunya virus capsid, molecular model. This virus, transmitted by mosquitoes in tropical Africa and Asia, causes fever and joint pain in humans, similar to dengue fever. 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.
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