10 20 30 40 50 UCAGCCACUGGACACUU- U-| U A CC A UGGUUU GCC GGU ACAUA ACCCGUAGAU GA CUUGUG U UGG CCG UGUGU UGGGUAUCUG CU GAACAC C AUCAACAUCUCACAAGAC UC^ C C UA C UUGUGU . 110 100 90 80 70 60