>d1ex4a2 c.55.3.2 (A:56-222) Retroviral integrase, catalytic domain {Human immunodeficiency virus type 1 [TaxId: 11676]} sspgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktiht dngsnftgatvraacdwagikqedgipynpqsqgvvesmnkelkkiigqvrdqaehlkta vqmavfihnkkrkggiggysagerivdiiatdiqtkelqkqitkiqn