Sequence alignment between 2kqy(A) and UniProt seq P19753 (PRVT_CHICK):

P19753 (PRVT_CHICK): Parvalbumin, thymic from Gallus gallus
                 10        20        30        40        50        60        70        80        90       100         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MAITDILSAKDIESALSSCQAADSFNYKSFFSTVGLSSKTPDQIKKVFGILDQDKSGFIEEEELQLFLKNFSSSARVLTSAETKAFLAAGDTDGDGKIGVEEFQSLVKA
PDB seq: -AITDILSAKDIESALSSCQAADSFNYKSFFSTVGLSSKTPDQIKKVFGILDQDKSGFIEEEELQLFLKNFSSSARVLTSAETKAFLAAGDTDGDGKIGVEEFQSLVKA
          ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
                  10        20        30        40        50        60        70        80        90       100