10          20        30        40        50        60
CUCUCAACCCACCCGGU--| UG   C   CCC    G    C         UACGGCACU 
                   CC  CUC CGC   AGCA CACA UGUGGUUUG         G
                   GG  GGG GCG   UUGU GUGU ACACCAAAC         U
UUUGGAGCCGCCACGGAGG^ GU   A   AGA    G    C         CUGCACCGG 
120       110       100        90        80        70