Sequence alignment between 3cme(Q) and UniProt seq P12734 (RL21_HALMA):

P12734 (RL21_HALMA): Large ribosomal subunit protein eL21 from Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809)
                 10        20        30        40        50        60        70        80        90      
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+------
UniProt: MPSSNGPLEGTRGKLKNKPRDRGTSPPQRAVEEFDDGEKVHLKIDPSVPNGRFHPRFDGQTGTVEGKQGDAYKVDIVDGGKEKTIIVTAAHLRRQE
PDB seq: -PSSNGPLEGTRGKLKNKPRDRGTSPPQRAVEEFDDGEKVHLKIDPSVPNGRFHPRFDGQTGTVEGKQGDAYKVDIVDGGKEKTIIVTAAHLRRQE
          ---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
                  10        20        30        40        50        60        70        80        90