10            20        30        40        50         
CCGCCCUGUUCUCUCAG----|   UC                  A          AUUGAG 
                     CUGA  UGUGGCUUAGGUAGUUUC UGUUGUUGGG      \
                     GACU  ACAUUGAGUCCGUCAAAG ACAACGGCUC      U
UCCCGGGAGCUGCUUUUGGCU^   --                  A          AAGUUU 
       110       100          90        80        70        60