10            20         30        40        50        60   
GUGGUGUCAAACGCUGU----|   UUAU  U-     UG   U         AUAU    GUUGUC 
                     UGCU    CC  GAACC  GCA ACAAUGUAG    CUGU      \
                     ACGA    GG  UUUGG  CGU UGUUACAUC    GACA      C
CCGUAAAUUUCGACGAAUAUA^   UC--  UC     GU   C         ----    UCUUAA 
  120       110       100          90        80            70