10            20        30        40        50        60 
UACACACUACGCUUAUAC----|  ACGG             U     U  A     GUUCCGU 
                      GGU    UACGGACGGACGA AGUCU CA CGACC       U
                      CCG    AUGUUUGCCUGCU UCAGG GU GCUGG       U
ACCUUCAUGAGAGCUACGUCGA^  GA--             U     -  G     AGCACAG 
 120       110       100          90        80         70