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The vision of an alphavirus and the arrangement of its genome this image shows the nucleocapsid of an alphavirus virion, composed of a 42S RNA genome (red) in plus-sense orientation and capsid proteins (sky blue). Virus glycoproteins E1 and E2 heterodimers (grey) are embedded in a lipid bilayer (green) surrounding the nucleocapsid, enclosed by a lipid bilayer.
