10 20 30 40 50 ACAGGAGUCAUCUAGAC-- U UAC- -| UU UUGAA UGUAG UAUUU CGGGUUU GACGAU GCGAGCA A ACGUC AUAAA GUCCAAA CUGCUG UGCUUGU U CGGCUACAACUGCAUUUUA - UUCC G^ U- UUUAU . 110 100 90 80 70 60