10        20          30        40        50          
GCUACACUUUUUCAAGUUUGUUG--|       UG         U       CCAGAUGGA 
                         GACAAAAU  GCUUUUACA UGAUUUC         \
                         UUGUUUUA  CGAAAGUGU ACUAGAG         U
UGCACUAGGUAUUGCAGCUGUCCUA^       GU         U       UCUUCAGAU 
 .       110       100        90        80        70