>d1az5a_ b.50.1.1 (A:) Simian immunodeficiency virus (SIV) protease {Simian immunodeficiency virus, different strains [TaxId: 11723]} pqfhlwkrpvvtahiegqpvevlldtgaddsivtgielgphytpkivgfintkeyknvev evlgkrikgtimtgdtpinifgrnlltalgmslnf