Sequence alignment between 6e6f(A) and UniProt seq P01116 (RASK_HUMAN):

P01116 (RASK_HUMAN): GTPase KRas from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MTEYKLVVVGAGGVGKSALTIQLIQNHFVDEYDPTIEDSYRKQVVIDGETCLLDILDTAGQEEYSAMRDQYMRTGEGFLCVFAINNTKSFEDIHHYREQIKRVKDSEDVPMVLVGNKCDLPSRTVDTKQAQDLARSYGIPFIETSAKTRQRVEDAFYTLVREIRQYRLKKISKEEKTPGCVKIKKCIIM
         ............X.............................................XXXXXXXXXXXX................................................................................X.X...........XX.......................
PDB seq: MTEYKLVVVGAGDVGKSALTIQLIQNHFVDEYDPTIEDSYRKQVVIDGETCLLDILDT------------YMRTGEGFLCVFAINNTKSFEDIHHYREQIKRVKDSEDVPMVLVGNKCDLPSRTVDTKQAQDLARSYGIPFIETSAKTRQGVDDAFYTLVREIRKH-----------------------
         ---------+---------+---------+---------+---------+--------            ---------+---------+---------+---------+---------+---------+---------+---------+---------+------                       
                 10        20        30        40        50                            80        90       100       110       120       130       140       150       160