10         20         30        40        50        60     
UCUACCUACCAAGGUUU-     -|  A   CU   GU         A      GUGGGGUUUGGU 
                  CUGUC CUU AGG  GAG  AGUAGAUUG AUAGUU            C
                  GACAG GGA UCC  UUC  UCAUCUGAC UAUCAA            C
UGAAGUACCACCCAGUCA     A^  A   U-   UG         A      UAGAGUCUCCCU 
 .       120       110       100         90        80        70