10          20        30        40        50        60 
GCAGUAUUGACGGUUUA--|  A          U         CU        GGUUGCAAG 
                   GCG GAUUUUCUGU GUGCUUGAU  AACCAUGU         G
                   CGC CUGAAAGGUA CACGAACUG  UUGGUACA         U
ACGGUACGACAUCUUUCGA^  A          C         UC        AAAUGAGUA 
  120       110       100        90        80        70