>3K4V_1|Chains A, B|HIV-1 Protease|Human immunodeficiency virus type 1 (11678) XPQITLWKRPLVTIKIGGQLKEALLDTGADDTVIEEMSLPGRWKPKMIGGIGGFIKVRQYDQIIIEIAGHKAIGTVLVGPTPVNIIGRNLLTQIGATLNF >3K4V_2|Chains C, D|HIV-1 Protease|Human immunodeficiency virus type 1 (11678) PQITLWKRPLVTIKIGGQLKEALLDTGADDTVIEEMSLPGRWKPKMIGGIGGFIKVRQYDQIIIEIAGHKAIGTVLVGPTPVNIIGRNLLTQIGATLNF