10           20        30        40        50        60  
CUGGGAAGAAAACUGACU---|      G  U       C    CCC         UAUUUCAU 
                     AUGCUAA CU UAGCUGG UGAA   GGGCCAAAU        \
                     UACGAUU GA GUCGACC ACUU   CCUGGUUUA        U
CAUCAGUAAUCCAACUCUUAU^      -  U       A    CC-         CAGUCUUG 
  120       110       100         90        80         70