Sequence alignment between 1a22(A) and UniProt seq P01241 (SOMA_HUMAN):

P01241 (SOMA_HUMAN): Somatotropin from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: MATGSRTSLLLAFGLLCLPWLQEGSAFPTIPLSRLFDNAMLRAHRLHQLAFDTYQEFEEAYIPKEQKYSFLQNPQTSLCFSESIPTPSNREETQQKSNLELLRISLLLIQSWLEPVQFLRSVFANSLVYGASDSNVYDLLKDLEEGIQTLMGRLEDGSPRTGQIFKQTYSKFDTNSHNDDALLKNYGLLYCFRKDMDKVETFLRIVQCRSVEGSCGF
         .................................................................................................................................................X.........XXXXXX.............XXXXX......................................
PDB seq: --------------------------FPTIPLSRLFDNAMLRAHRLHQLAFDTYQEFEEAYIPKEQKYSFLQNPQTSLCFSESIPTPSNREETQQKSNLELLRISLLLIQSWLEPVQFLRSVFANSLVYGASDSNVYDLLKDLEERIQTLMGRLE------GQIFKQTYSKFDT-----DALLKNYGLLYCFRKDMDKVETFLRIVQCRSVEGSCGF
                                   ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------      ----+--------     ------+---------+---------+---------+-
                                           10        20        30        40        50        60        70        80        90       100       110       120                 140                 160       170       180       190