>4EQ0_1|Chain A|protease, tethered dimer|HIV-1 M:B_ARV2/SF2 (11685) PQITLWKRPLVTIRIGGQLKEALLNTGSDFTVLEEMNLPGKWKPKMIRGIGGFIKVRQYDQIPVEILGHKAIGTVLVGPTPVNIIGRNLLTQIGMTLNFGGSSGPQITLWKRPLVTIRIGGQLKEALLNTGSDDTVLEEMNLPGKWKPKMIGGIGGFIKVRQYDQIPVEILGHKAIGTVLVGPTPVNIIGRNLLTQIGMTLNF >4EQ0_2|Chain B[auth P]|substrate p2-NC|Human immunodeficiency virus 1 (11676) ATIMMQRG