10          20        30         40        50        
UUACACAGGUGUAACAC--|   G  A     UUU   -    G   CAU     GUAGC 
                   AGGU GU CACCC   CCU CUCU CCC   AGGGU     U
                   UCCG CA GUGGG   GGA GAGA GGG   UCCCA     C
GACUCGACUUCUUUAUCGU^   A  A     UU-   A    A   AUC     UCAAU 
      110       100        90         80        70        60