FIG. 2.
Image reconstruction of AuraT virus at 17-Å resolution, viewed along a twofold axis. (A) Surface-shaded representation. The yellow triangle demarks one icosahedral asymmetric unit. (B) Surface-shaded representation as in panel A but with the front half removed to reveal interior features. Arrows identify putative transmembrane connections. Aura virus exhibits a multilayered structure similar to that of SINV, which consists of glycoproteins (blue), a lipid bilayer (green), nucleocapsid proteins (orange), and the genome (pink). (C) Electron density map of an equatorial section. Icosahedral twofold (i2), threefold (i3), quasi-threefold (q3), and fivefold (i5) axes are labeled in panels A and C. Bar, 200 Å.