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. Author manuscript; available in PMC: 2021 Aug 13.
Published in final edited form as: Nature. 2020 Dec 2;588(7838):515–520. doi: 10.1038/s41586-020-2990-5

Figure 5. CryoEM density map and pseudo-atomic model of whole SmM molecule.

Figure 5

a, Cryo-EM density of whole SmM molecule, thresholded to display the tail ribbon (contour 0.022). b, c, Spacefill and ribbon depictions respectively of pseudo-atomic model of SmM. d, Model fitted into density map, to show arrangement of tail segments. Colours as in Fig. 1 except segment-2 and segment-3 are coloured as continuations of segment-1. Skip residues 1 (Q1199), 2 (Q1592) and 3 (K1817) are indicated by yellow spheres. Bend-1 at A1169 also highlighted. The tail ribbon is ~220 Å long. The C-terminal non-helical tailpiece of SmM is not modelled.