Sequence alignment between 8zpn(N) and UniProt seq :

UniProt: 
PDB seq: QVQLQESGGGLVQAGESLRLSCAASGTIFRLYDMGWYRQRELVASITSGGSTKYGDSVKGRFTISRDNAKNTVYLQMSSLKPEDTAVYYCNAEYRTGIWEELLDGWGQGTQVTVSS
         -------+---------+---------+---------+----+---------+---------+---------+---------+---------+---------+---------+---
               10        20        30        40   50        60        70        80        90       100       110       120