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. Author manuscript; available in PMC: 2016 Jan 22.
Published in final edited form as: Cell Rep. 2015 Nov 12;13(8):1683–1691. doi: 10.1016/j.celrep.2015.10.027

Figure 2. Crystal structures of E5.1 and V4.4 H5 HAs and their complexes with human receptor analogue LSTc.

Figure 2

(A) The receptor binding site (RBS) of E5.1 HA (grey tubes for the backbone with selected residues in the binding site shown in atomic representation with grey carbon atoms, blue nitrogen atoms and red oxygen atoms) in complex with human receptor analogue LSTc (yellow carbon atoms, blue nitrogen atoms and red oxygen atoms). (B) Structural comparison of the RBS of E5.1 HA (grey carbon atoms) in complex with LSTc (yellow carbon atoms) versus apo-E5.1 HA (pink carbon atoms) with glycan ligand removed for clarity. (C) The RBS of V4.4 HA bound with human receptor analogue LSTc. The coloring scheme is similar to that of (A). (D) Structural comparison of the RBSs of V4.4 HA in complex with LSTa versus apo- V4.4 HA with glycan ligand removed. The coloring scheme is the same as (B).