10        20          30        40        50        60 
UUACUUCCUGGUGAGUGGUGU--|  U             U          A  AGUGAUCA 
                       CUG CCAGUGCCCUUUU AUGUUGUACU CU        \
                       GAC GGUUACGGGAAAA UGUAACGUGA GA        U
UAAUUGAUUGCACCUGUCAUAGU^  C             U          C  AAAACACA 
 120       110       100        90        80        70