Sequence alignment between 6j6q(k) and UniProt seq P40018 (RSMB_YEAST):

P40018 (RSMB_YEAST): Small nuclear ribonucleoprotein-associated protein B from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190      
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+------
UniProt: MSKIQVAHSSRLANLIDYKLRVLTQDGRVYIGQLMAFDKHMNLVLNECIEERVPKTQLDKLRPRKDSKDGTTLNIKVEKRVLGLTILRGEQILSTVVEDKPLLSKKERLVRDKKEKKQAQKQTKLRKEKEKKPGKIAKPNTANAKHTSSNSREIAQPSSSRYNGGNDNIGANRSRFNNEAPPQTRKFQPPPGFKRK
         ................................................................XXXXXXX.............................................................................................................................
PDB seq: --KIQVAHSSRLANLIDYKLRVLTQDGRVYIGQLMAFDKHMNLVLNECIEERVPKTQLDKLRPR-------TLNIKVEKRVLGLTILRGEQILSTVVEDKPLLSKKERL---------------------------------------------------------------------------------------
           -------+---------+---------+---------+---------+---------+----       --------+---------+---------+---------                                                                                       
                 10        20        30        40        50        60                  80        90       100