Sequence alignment between 4o4z(A) and UniProt seq Q9ER97 (NGB_MOUSE):

Q9ER97 (NGB_MOUSE): Neuroglobin from Mus musculus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150 
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-
UniProt: MERPESELIRQSWRVVSRSPLEHGTVLFARLFALEPSLLPLFQYNGRQFSSPEDCLSSPEFLDHIRKVMLVIDAAVTNVEDLSSLEEYLTSLGRKHRAVGVRLSSFSTVGESLLYMLEKCLGPDFTPATRTAWSRLYGAVVQAMSRGWDGE
         ......................................................X................................................................X...............................
PDB seq: --RPESELIRQSWRVVSRSPLEHGTVLFARLFALEPSLLPLFQYNGRQFSSPEDSLSSPEFLDHIRKVMLVIDAAVTNVEDLSSLEEYLTSLGRKHRAVGVRLSSFSTVGESLLYMLEKSLGPDFTPATRTAWSRLYGAVVQAMSRGWDG-
           -------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+ 
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150