Sequence alignment between 4xkl(A) and UniProt seq P62987 (RL40_HUMAN):

P62987 (RL40_HUMAN): Ubiquitin-ribosomal protein eL40 fusion protein from Homo sapiens
                   10        20        30        40        50        60        70        80        90       100       110       120        
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: --MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGGIIEPSLRQLAQKYNCDKMICRKCYARLHPRAVNCRKKKCGHTNNLRPKKKVK
PDB seq: GSMQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG----------------------------------------------------
         -+---------+---------+---------+---------+---------+---------+---------+------                                                    
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