>4EJD_2|Chain C|pepstatin|Streptomyces argenteolus subsp. toyonakensis (285516) XVVXAX >4EJD_1|Chains A, B|Protease|Human immunodeficiency virus 1 (11676) PQITLWKRPLVTIKIGGQLKEALLDTGADDTVLEEMNLPGRWKPKMIGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF