10         20         30        40        50          
CGACUGUGUACACCACU-     U-|              U   UU         GAGAUC 
                  CGGCG  GCCCUGUCCUUUUUG GGU  GGGGCUUUU      \
                  GUCGU  UGGGAUAGGGAAAAC CCA  UCCCGAAAA      U
ACAUAUACAGCGAUGUAC     CU^              U   U-         GACAGC 
.       110       100        90        80         70