>4EJK_1|Chains A, B|Protease|Human immunodeficiency virus 1 (11676) PQITLWKRPLVTIKIGGQLKEALLDTGADDTVLEEMNLPGRWKPKMIGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF >4EJK_2|Chain C[auth N]|pepstatin| XVVXAX