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. 2016 Dec 8;7:13557. doi: 10.1038/ncomms13557

Figure 4. The gp42 HP interacts with gH D-II and overlaps the integrin binding ‘KGD' motif.

Figure 4

(a) One edge of the previously identified gp42 HP interacts with gH D-II. The gp42 C-domain surface is coloured hotpink, with HP residues shown in slate (shade of blue) and labelled. The gH D-II is shown as a cartoon and coloured wheat. Gp42 residues gp42:I187, gp42:F188 and gp42:F210 interact with gH D-II. (b) Two gp42 histidines (gp42:H205 and gp42:H206, cyan sticks) in the HP form contacts with gH:E282 (orange). HP residues not directly in contact with gH are indicated by their Cα atom shown as spheres. (c) gp42:L85 (sticks) contacts gH:G189 in the 188KGD190 motif, while gp42:E171 (cyan) is positioned to form charge–charge interactions with gH:K188. The shortest distance (10.4 Å) between the minimal inhibitory peptide of gp42 peptide ending at gp42:W81 (ref. 17) with the gH 188KGD190 motif is highlighted. Structures were rendered using MacPyMol.