Sequence alignment between 2dn3(A) and UniProt seq P69905 (HBA_HUMAN):

P69905 (HBA_HUMAN): Hemoglobin subunit alpha from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140  
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MVLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNALSALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
PDB seq: -VLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNALSALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
          ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-
                  10        20        30        40        50        60        70        80        90       100       110       120       130       140