IGFBP3 GI:62243068 insulin-like growth factor binding protein 3 isoform b precursor 1 mqrarptlwa aaltllvllr gppvaragas saglgpvvrc epcdaralaq 50 51 capppavcae lvrepgcgcc ltcalsegqp cgiytercgs glrcqpspde 100 101 arplqalldg rglcvnasav srlrayllpa ppapgnases eedrsagsve 150 151 spsvssthrv sdpkfhplhs kiiiikkgha kdsqrykvdy esqstdtqnf 200 201 sseskretey gpcrremedt lnhlkflnvl sprgvhipnc dkkgfykkkq 250 251 crpskgrkrg fcwcvdkygq plpgyttkgk edvhcysmqs k