>4RVI_1|Chains A, B, C, D|HIV-1 protease|Human immunodeficiency virus 1 (11676) PQITLWQRPIVTIKVGGQLKEALLDTGADDTVLEDMELPGRYKPRMIGGIGGFVKVRQYDQIPIEICGHKVIGTVLVGPTPTNIIGRNLMTQLGCTLNF