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The image shows a 6.8 Å density map of rice dwarf virus P8 capsid protein beside a crystal structure of distantly related bluetongue virus P7 capsid protein. The density map comes from analysis of 3261 virus particles imaged by electron cryo-microscopy. Cylinders fit to the density map indicate alpha-helix positions, and some hand-traced connecting turns are shown. The rice dwarf virus analysis was done at the National Center for Macromolecular Imaging and is described in Nature Struct. Biol. 8:868-73 (2001). The image was made with the Chimera molecular graphics program developed by the Resource for Biocomputing, Visualization and Informatics with support from NIH grant P41-RR01081.

© 2001 Regents of the University of California.