10 20 30 40 50 UCAUUUUUUCUUUUGGU-- UU U GC --| U AAGAA GCAG C CU UAGUUUUGCAUAG UUGCAC AC A CGUC G GG GUCAAAACGUAUC AACGUG UG A ACCCUUAGCACCUCUUCGU CG U UA UA^ U AGGGC 110 100 90 80 70 60