10            20        30         40        50        60 
CGAAGUGUCGUAUACAU----|   CA      U      -                GUGAUAUA 
                     GGGU  GCGGCG CAUCUU ACCUGAUGGUAUUAGA        \
                     UCCA  CGCUGC GUAGAA UGGACUGUCAUAAUUU        A
UGCCACUCCUACUGCUAUCGG^   --      U      A                GUAGCAGA 
  120       110       100          90        80        70