IGF1 GI:163659903 insulin-like growth factor 1 isoform 3 preproprotein 1 mgkisslptq lfkccfcdfl kvkmhtmsss hlfylalcll tftssatagp 50 51 etlcgaelvd alqfvcgdrg fyfnkptgyg sssrrapqtg ivdeccfrsc 100 101 dlrrlemyca plkpaksars vraqrhtdmp ktqkyqppst nkntksqrrk 150 151 gwpkthpgge qkegteaslq irgkkkeqrr eigsrnaecr gkkgk