714623.fig.004a
(a)
714623.fig.004b
(b)
714623.fig.004c
(c)
714623.fig.004d
(d)
Figure 4: (a) Docking of Beta-Sialic acid on molecular surface of HA protein by Schrodinger, (b) docking of O-Sialic acid on molecular surface of HA protein by Schrodinger; (c) interaction of B-Sialic acid with HA protein by hydrogen-bond, and (d) interaction of O-Sialic acid with HA protein by hydrogen-bond.