>sp|C3MQ43|PSA_SULIL Proteasome subunit alpha OS=Sulfolobus islandicus GN=psmA MAFGPAAMGYDRAITIFSPDGSLYQVDYAFEAVKKGWTAIGIKSKSGVVIASEKRKAQSL LDVDSIEKVFLIDDHVGCSFAGLASDGRVLIDYARNIALQHRLIYDEPVSIDYLTKSVAD VKQMYTQHGGVRPFGVALVIAGIDKSVPKLYMTEPSGQYMPYQAVAIGQGYYTATEFLEK NYKEDLTIEDTILLALKALSATLKPNEKLTPNTVEIGYASTQTGLFLKMTSEDKNMYLQK L