Sequence alignment between 4b6a(m) and UniProt seq P0CH08 (RL40A_YEAST):

P0CH08 (RL40A_YEAST): Ubiquitin-60S ribosomal protein L40 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
                 10        20        30        40        50        60        70        80        90       100       110       120        
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: MQIFVKTLTGKTITLEVESSDTIDNVKSKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGGIIEPSLKALASKYNCDKSVCRKCYARLPPRATNCRKRKCGHTNQLRPKKKLK
PDB seq: ----------------------------------------------------------------------------IIEPSLKALASKYNCDKSVCRKCYARLPPRATNCRKRKCGHTNQLRPKKKLK
                                                                                     ---+---------+---------+---------+---------+--------
                                                                                       80        90       100       110       120