Sequence alignment between 6t5b(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......................................X............................X.....................................X................................X.X......X....XXXX.....................
PDB seq: GMTEYKLVVVGACGVGKSALTIQLIQNHFVDEYDPTIEDSYRKQVVIDGETSLLDILDTAGQEEYSAMRDQYMRTGEGFLLVFAINNTKSFEDIHHYREQIKRVKDSEDVPMVLVGNKSDLPSRTVDTKQAQDLARSYGIPFIETSAKTRQGVDDAFYTLIREIRKHKEK--------------------
         ----------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------                    
                  10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160