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Figure 3 | Virology Journal

Figure 3

From: Subtype- and antigenic site-specific differences in biophysical influences on evolution of influenza virus hemagglutinin

Figure 3

Biophysical characteristics of influenza H3 HA antigenic sites. (a) Rates of change at individual residues in H3 HA are shown from the top (T) and viewed along the left (L) and right (R) sides of the monomer. Note that structures marked T and L in panel a are identical to the structures marked “abs” in the middle section of Figure 1A, with approximate positions of antigenic sites A, B, C, D, and E indicated with white labels. Color-coding of surface residues is as described in Figure 1b. The most rapidly changing residues in H1 HA (75th percentile and above; red and orange in panel a) were color-coded according to the average pairwise change in NCI values for ∆∆ASA tot (tot, panel b), ∆∆ASA np (np, panel c), ∆∆ASA pol (pol, panel d), or ∆Q (ch, panel e). Color scheme for panels b-e as in Figure 2f. Structure files used to generate panels a-e, viewable using PyMol, are available on line (Additional files 7, 8, 9, 10 and 11).

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