10          20        30        40        50        60
CAAGAAAGAUAAAAAAU--|  C         A        A       U  AGUUGCCUU 
                   GGU CUUGCCCUC AGGAGCUC CAGUCUA UG         U
                   UCA GGACGGGAG UCCUCGAG GUUAGAU AC         C
AAAAAAGGUCAACUUGUUU^  C         G        A       C  CCUUUCAGU 
120       110       100        90        80        70