10        20        30               40        50        60     
UGUGACGGCCGCUCUGUUCAGCCU       -------|  GU   U     U      UUAGGGUCACAC 
                        CUGGGAU       GAG  AGU GGUUG AUAGUU            C
                        GACCCUG       UUC  UCA CCAAC UAUCAG            C
CGCCUCCCGCUUCACAGU------       AAACCCU^  UG   U     U      UAGAGGGUCACA 
 .       120             110       100        90        80        70