>4F74_1|Chains A, B|Protease|HIV-1 M:B_ARV2/SF2 (11685) PQITLWKRPLVTIRIGGQLKEALLDTGADDTVLEEMNLPGKWKPKMIGGIGGFIKVRQYDQIPVEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF >4F74_2|Chain C|N terminal product of substrate MA-CA|Human immunodeficiency virus 1 (11676) VSQNY