Figure 1

M101 structure. Electron micrographs of M101, negatively stained with 2% uranyl acetate, showing the two frequent orientations, face view and lateral view (arrows). Scale bar 60 nm.

M101 structure. Electron micrographs of M101, negatively stained with 2% uranyl acetate, showing the two frequent orientations, face view and lateral view (arrows). Scale bar 60 nm.