>d1az5__ b.50.1.1 (-) Simian immunodeficiency virus (SIV) protease {Simian immunodeficiency virus, different strains} pqfhlwkrpvvtahiegqpvevlldtgaddsivtgielgphytpkivgfintkeyknvev evlgkrikgtimtgdtpinifgrnlltalgmslnf