10 20 30 40 50 CUCACAGUCAUAUGUGA--| U UC U C UGGGUG CCUAU CCUCAAGG CAGU UU CCAGGAAUCCCU \ GGAUG GGGGUUCU GUCA AA GGUCCUUAGGGG C CUCUCAAGGUCAACGGUGC^ U U- U A UGGUGU . 110 100 90 80 70