Sequence alignment between 1nqn(A) and UniProt seq P02701 (AVID_CHICK):

P02701 (AVID_CHICK): Avidin from Gallus gallus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150  
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MVHATSPLLLLLLLSLALVAPGLSARKCSLTGKWTNDLGSNMTIGAVNSRGEFTGTYITAVTATSNEIKESPLHGTQNTINKRTQPTFGFTVNWKFSESTTVFTGQCFIDRNGKEVLKTMWLLRSSVNDIGDDWKATRVGINIFTRLRTQKE
         .........................................................X...XXXX...........X........................................................X..................
PDB seq: -------------------------RKCSLTGKWTNDLGSNMTIGAVNSRGEFTGTYTTAV----NEIKESPLHGTENTINKRTQPTFGFTVNWKFSESTTVFTGQCFIDRNGKEVLKTMWLLRSSVNDIGDDKKATRVGINIFTRL-----
                                  --------+---------+---------+-------    --------+---------+---------+---------+---------+---------+---------+---------+---     
                                         10        20        30                  50        60        70        80        90       100       110       120