10        20          30        40        50          
CGGGUUCCAACUGAUCUACC--|   G     A         U  AGU      GGGGUAG 
                      GCAC GUGUG GGUGGUCAC UG   UGCAGU       \
                      CGUG CACAU CCGCCAGUG AC   ACGUCG       U
ACGGUAGUGAGACGUACUGUAC^   A     C         U  CCU      CACAAGG 
 .       110       100        90        80        70