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Determination of the CnMV, PBoV1, and RBoV capsid structures. (a) Capsid surface density maps of CnMV, PBoV1, and RBoV contoured at a 2 sigma (σ) threshold level. The maps are radially colored (blue to red) according to distance to the capsid center, as indicated by the scale bar in the center. The approximate icosahedral two-, three-, and fivefold axes are indicated. (b) Cross-sectional views of the CnMV, PBoV1, and RBoV density map at a 0.5σ threshold.
