Sequence alignment between 6a3b(B) and UniProt seq P41920 (YRB1_YEAST):

P41920 (YRB1_YEAST): Ran-specific GTPase-activating protein 1 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       200 
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-
UniProt: MSSEDKKPVVDKKEEAAPKPPSSAVFSMFGGKKAEKPETKKDEEDTKEETKKEGDDAPESPDIHFEPVVHLEKVDVKTMEEDEEVLYKVRAKLFRFDADAKEWKERGTGDCKFLKNKKTNKVRILMRRDKTLKICANHIIAPEYTLKPNVGSDRSWVYACTADIAEGEAEAFTFAIRFGSKENADKFKEEFEKAQEINKKA
         .....................................................................XXXXXXXX............................................................................................................................
PDB seq: ---------------------------------------------------------------HFEPVV--------TMEEDEEVLYKVRAKLFRFDADAKEWKERGTGDCKFLKNKKTNKVRILMRRDKTLKICANHIIAPEYTLKPNVGSDRSWVYACTADIAEGEAEAFTFAIRFGSKENADKFKEEFEKAQEINKK-
                                                                        ------        --+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+ 
                                                                                       80        90       100       110       120       130       140       150       160       170       180       190       200