>d1tcwb_ b.50.1.1 (B:) Simian immunodeficiency virus (SIV) protease {Simian immunodeficiency virus, different strains [TaxId: 11723]} pqfslwrrpvvtahiegqpvevlldtgaddsivtgielgphytpkivggiggfintkeyk nvkievlgkrikgtimtgdtpinifgrnlltalgmslnl