>d1qbrb_ b.50.1.1 (B:) Human immunodeficiency virus type 1 protease {Human immunodeficiency virus type 1} pqvtlwqrplvtikiggqlkealldtgaddtvleemslpgrwkpkmiggiggfikvrqyd qilieicghkaigtvlvgptpvniigrnlltqigatlnf