10          20        30        40        50        60
CCACCCCUCAAGUGGAU--|  AC  C    A   UU               U  UUGACU 
                   UGG  UC CUUU ACU  AACAUGGAAGUACUU CU      U
                   ACC  AG GAAG UGA  UUGUACCUUCGUGAA GA      U
AUGUAAGCCUCCUUAUUAA^  CA  U    A   UU               U  UAAAAC 
120       110       100        90        80        70