Micrographs were Gaussian high-pass filtered with a Gauss filter (standard implementation) with a standard deviation of 40 Å, which translates to a standard deviation of 251 Å taking the factor two pi into account. This micrographs were used for the reconstruction of the linked EMD entry. Particle coordinates in the corresponding .box files in the folder coordinates, with the x- and y-coordinates in the first and second column.