4WHY:
reference: Structural Flexibility of a Conserved Broadly Neutralizing Epitope in Hepatitis C Virus Glycoprotein E2., Meola A, Tarr AW, England P, Meredith LW, McClure CP, Foung SK, McKeating JA, Ball JK, Rey FA, Krey T, J Virol. 2014 Dec 3. pii: JVI.02190-14. PMID: 25473061

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