Science Seen | Dengue Junior

Image: Ying Zhang, Richard Kuhn, Tim Baker, Michael Rossmann, Purdue University
 This image, assembled by Purdue University researchers and others from cryoelectron micrographs of immature dengue viral particles, shows the 60 or so trimers, or three-pronged protein spikes, on its surface. Each protein molecule contains a fusion peptide that the virus uses to attach itself to a potential host. A mature dengue particle, in contrast, has a smooth surface.

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