Sequence alignment between 7x9c(P) and UniProt seq P01298 (PAHO_HUMAN):

P01298 (PAHO_HUMAN): Pancreatic polypeptide prohormone from Homo sapiens
                 10        20        30        40        50        60        70        80        90     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: MAAARLCLSLLLLSTCVALLLQPLLGAQGAPLEPVYPGDNATPEQMAQYAADLRRYINMLTRPRYGKRHKEDTLAFSEWGSPHAAVPRELSPLDL
         ................................................................X..............................
PDB seq: -----------------------------APLEPVYPGDNATPEQMAQYAADLRRYINMLTRPRX------------------------------
                                      ---------+---------+---------+------                              
                                              10        20        30