3EYJ:
reference: Structure of influenza hemagglutinin in complex with an inhibitor of membrane fusion., Russell RJ, Kerry PS, Stevens DJ, Steinhauer DA, Martin SR, Gamblin SJ, Skehel JJ, Proc Natl Acad Sci U S A. 2008 Nov 18;105(46):17736-41. Epub 2008 Nov 12. PMID: 19004788

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