FIG 7.

Comparison of T=1-based inner cores of dsRNA viruses. (Top) Asymmetric units (top views) of RnQV1 (A), ScV-L-A (B), and PcV (C). RnQV1 A and B subunits are shown in blue and yellow, respectively, to indicate that they are distinct proteins; ScV-L-A A and B subunits are shown in blue, since they are conformers of the same protein; and PcV A and B “subunits” are shown in blue (with the boundaries of A outlined in red), as they are two similar covalently bound domains of a single CP. (Bottom) Surface-shaded capsids of RnQV1, ScV-L-A, and PcV viewed along an icosahedral 2-fold axis. To indicate that they are similarly organized capsids, the A subunits (closer to the 5-fold axis) are shown in blue and the B subunits (intercalated between A subunits) in yellow.