10 20 30 40 50 AGUGUUGAGCGGAAUAC----| UG - UU UGGAAGU GCUU CACAUUGGU GCAUUGUAG GCAUUGCA \ CGGA GUGUAACUA CGUGACGUC CGUGACGU U UAAGUCAAAACCAUCAUCCUG^ -- A CU GGCCAAC . 110 100 90 80 70 60