>tr|A0A4P8K3F1|A0A4P8K3F1_HALMA Large ribosomal subunit protein eL21 OS=Haloarcula marismortui GN=rpl21e MPSSNGPLEGTRGKLKNKPRDRGTSPPQRAVEEFDDGEKVHLKIDPSVPNGRFHPRFDGQ TGTVEGKQGDAYKVDIVDGGKEKTIIVTAAHLRRQE