Sequence alignment between 2bf9(A) and UniProt seq P68249 (PAHO_MELGA):

P68249 (PAHO_MELGA): Pancreatic polypeptide from Meleagris gallopavo 
                 10        20        30      
         ---------+---------+---------+------
UniProt: GPSQPTYPGDDAPVEDLIRFYNDLQQYLNVVTRHRY
         ...................................X
PDB seq: GPSQPTYPGDDAPVEDLIRFYNDLQQYLNVVTRHRX
         ---------+---------+---------+------
                 10        20        30