>d3fiva_ b.50.1.1 (A:) Feline immunodeficiency virus (FIV) protease {Feline immunodeficiency virus} ttttlekrpeilifvngypikfllntgaditilnrrdfqvknsiengrqnmigvgggkrg tnyinvhleirdenyktqaifgnvcvlednsliqpllgrdnmikfnirlvm