10            20        30        40        50         
CUCAGGACUGAAGGAAC----|  UCU   U         CA  C  A     GU AGGCGU 
                     ACG   UGC GUGGCUGGU  AA GG ACCAA  C      U
                     UGC   GCG CAUCGACCA  UU CC UGGUU  G      U
UCAGAGGACGACCGAGUCAAG^  C--   U         AC  C  C     UG AGUGAC 
.       110       100          90        80        70        60