FXN GI:31077081 frataxin isoform 1 preproprotein 1 mwtlgrrava gllaspspaq aqtltrvprp aelaplcgrr glrtdidatc 50 51 tprrassnqr glnqiwnvkk qsvylmnlrk sgtlghpgsl dettyerlae 100 101 etldslaeff edladkpytf edydvsfgsg vltvklggdl gtyvinkqtp 150 151 nkqiwlssps sgpkrydwtg knwvyshdgv slhellaael tkalktkldl 200 201 sslaysgkda