>gi|163659903 insulin-like growth factor 1 isoform 3 preproprotein [Homo sapiens] MGKISSLPTQLFKCCFCDFLKVKMHTMSSSHLFYLALCLLTFTSSATAGP ETLCGAELVDALQFVCGDRGFYFNKPTGYGSSSRRAPQTGIVDECCFRSC DLRRLEMYCAPLKPAKSARSVRAQRHTDMPKTQKYQPPSTNKNTKSQRRK GWPKTHPGGEQKEGTEASLQIRGKKKEQRREIGSRNAECRGKKGK