Sequence alignment between 6pyh(B) and UniProt seq P05019 (IGF1_HUMAN):

P05019 (IGF1_HUMAN): Insulin-like growth factor 1 from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: MGKISSLPTQLFKCCFCDFLKVKMHTMSSSHLFYLALCLLTFTSSATAGPETLCGAELVDALQFVCGDRGFYFNKPTGYGSSSRRAPQTGIVDECCFRSCDLRRLEMYCAPLKPAKSARSVRAQRHTDMPKTQKYQPPSTNKNTKSQRRKGWPKTHPGGEQKEGTEASLQIRGKKKEQRREIGSRNAECRGKKGK
         .....................................................................................XXX...........................................................................................................
PDB seq: ---------------------------------------------------TLCGAELVDALQFVCGDRGFYFNKPTGYGSSSRR---TGIVDECCFRSCDLRRLEMYCAP------------------------------------------------------------------------------------
                                                            ------+---------+---------+-------   ---------+---------+---                                                                                    
                                                                 10        20        30                  50        60