4A1X:
reference: High Affinity Peptide Inhibitors of the Hepatitis C Virus NS3-4A Protease Refractory to Common Resistant Mutants., Kugler J, Schmelz S, Gentzsch J, Haid S, Pollmann E, van den Heuvel J, Franke R, Pietschmann T, Heinz DW, Collins J, J Biol Chem. 2012 Nov 9;287(46):39224-32. doi: 10.1074/jbc.M112.393843. Epub 2012, Sep 10. PMID: 22965230

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