NRTN GI:4758826 neurturin preproprotein 1 mqrwkaaala svlcssvlsi wmcregllls hrlgpalvpl hrlprtldar 50 51 iarlaqyral lqgapdamel reltpwagrp pgprrragpr rrrararlga 100 101 rpcglrelev rvselglgya sdetvlfryc agaceaaarv ydlglrrlrq 150 151 rrrlrrervr aqpccrptay edevsfldah sryhtvhels arecacv