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. 2009 Sep 2;83(22):11491–11501. doi: 10.1128/JVI.01214-09

FIG. 7.

FIG. 7.

The penton base has low partial occupancy in the HAdV12/αvβ5 cryoEM structure. (A) Thin (∼20-Å) slab of the Ad35f cryoEM structure (29) with docked crystal structures of hexon (cyan) (PDB-ID 1P30) and penton base (gold) with the N-terminal fiber peptide (green). The cryoEM density (mesh) is isocontoured at 1.7σ and shows rods for α-helices in both hexon and penton base. (B) Thin slab of the HAdV12/αvβ5 cryoEM structure with the same docked atomic resolution structures. The cryoEM density is isocontoured at 2.8σ and shows rods for α-helices in hexon and almost no density for the penton base. (C) Same as panel B but with the HAdV12/αvβ5 cryoEM density isocontoured at 2.3σ showing rods for α-helices in penton base similar to those shown for Ad35f in panel A, but with significantly more hexon density than in panel A. Both maps are shown filtered to 7.5 Å with the same applied B factor (−300 Å2).