>sp|C4KHD9|PSA_SULIK Proteasome subunit alpha OS=Sulfolobus islandicus GN=psmA MAFGPAAMGYDRAITIFSPDGSLYQVDYAFEAVKKGWTAIGIKSKSGVVIASEKRKAQSL LDVDSIEKVFLIDDHVGCSFAGLASDGRVLIDYARNIALQHRLIYDEPVSIDYLTKSVAD VKQMYTQHGGVRPFGVALVIAGIDKSVPKLYMTEPSGQYMPYQAVAIGQGYYTATEFLEK NYKEDLTIEDTILLALKALSATLKPNEKLTPNTVEIGYASTQTGLFLKMTSEDKNMYLQK L