Sequence alignment between 3prm(B) and UniProt seq J3QS39 (J3QS39_HUMAN):

J3QS39 (J3QS39_HUMAN): Ubiquitin B (Fragment) from Homo sapiens
                 10        20        30        40        50        60        70        80        90   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGGMQIFVKTLTGKTITLEV
         ...........................................................................X.................
PDB seq: MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGX-----------------
         ---------+---------+---------+---------+---------+---------+---------+------                 
                 10        20        30        40        50        60        70