Sequence alignment between 6j4z(K) and UniProt seq C4R3Z5 (C4R3Z5_KOMPG):

C4R3Z5 (C4R3Z5_KOMPG): RNA polymerase II subunit B12.5 from Komagataella phaffii (strain GS115 / ATCC 20864)
                 10        20        30        40        50        60        70        80        90       100       110        
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: MNAPDRFELFILPDDVPKLKITPDSRVPNCIIIKFEREDHTLANLLREELALYPDVTFVAYKVEHPLFANFVMRLQTEEGTRPKQALERACASIINKLKTLDHKFNEEWNIKNFSLND
PDB seq: MNAPDRFELFILPDDVPKLKITPDSRVPNCIIIKFEREDHTLANLLREELALYPDVTFVAYKVEHPLFANFVMRLQTEEGTRPKQALERACASIINKLKTLDHKFNEEWNIKN-----
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---     
                 10        20        30        40        50        60        70        80        90       100       110