10          20        30         40        50        60
UUGGAGGGGGGCAGGCU--           C     -|     A        U  GUGCUGG 
                   GGGCGGGGGCC CCGUC UUACCC GCAGUGUU GG       U
                   CUUGUCUCCGG GGUAG AAUGGG CGUCAUAA CU       U
UACCUACAGCGACUAUGUC           A     U^     C        U  CUGAGGG 
 120       110       100        90        80        70