1QA7:
reference: Crystal structure of an inhibitor complex of the 3C proteinase from hepatitis A virus (HAV) and implications for the polyprotein processing in HAV., Bergmann EM, Cherney MM, Mckendrick J, Frormann S, Luo C, Malcolm BA, Vederas JC, James MN, Virology 1999 Dec 5;265(1):153-63. PMID: 10603326

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