1FIV:
reference: Structure of an inhibitor complex of the proteinase from feline immunodeficiency virus., Wlodawer A, Gustchina A, Reshetnikova L, Lubkowski J, Zdanov A, Hui KY, Angleton EL, Farmerie WG, Goodenow MM, Bhatt D, et al., Nat Struct Biol 1995 Jun;2(6):480-8. PMID: 7664111

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