TABLE 1.

Data collection and image processing

Virus	No. of micro- graphs	Under- focus (μm)a	No. of particlesb	Mean correlation coefficientc (SD)	Resolution of the map (Å)
AuraT	20	1.90-3.52	3,506 (2,812)	0.397 (0.105)	17.0
AuraB	21	1.46-3.12	1,581 (1,263)	0.454 (0.090)	21.0

^aDetermined from the averaged Fourier transform of boxed images.

^bTotal number of viral particles boxed from all micrographs. The number of particles used for the three-dimensional reconstruction is given in parentheses.

^cAverage real-space correlation coefficient for all particles computed between 165 and 350 Å radii of the final model. The correlation coefficient (CC) was calculated as follows: CC = Σ(ρ₁ρ₂ − <ρ₁><ρ₂>)/[Σ(ρ₁² − <ρ₁>²) Σ(ρ₂² − ρ₂>²)]^0.5. ρ₁ and ρ₂ refer to the density values of one particle image and its corresponding projection of the three-dimensional reconstruction, respectively. The sum is take over all pixels within the defined radii and <ρ₁> and ρ₂> refer to the mean values of the image and the corresponding projection of the reconstruction. The standard deviation (SD) of each correlation coefficient is given in parentheses.