Sequence alignment between 4pig(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
         ..........X.....................................................................................................................
PDB seq: MQIFVKTLTGSTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRG-----------------------------------------------------
         ---------+---------+---------+---------+---------+---------+---------+-----                                                     
                 10        20        30        40        50        60        70