10         20         30        40        50         
UUGAACUCUUCAACAUC-     UC-|                UG         GUUAUG 
                  UAAGG   ACUUCUAUAUCAGAUAU  UAUCUUUUU      \
                  AUUUC   UGAAGGUGUAGUCUAUA  AUGGAAAAG      U
UGACACCCUCGACUAUCG     UUA^                UG         UCAAAA 
       110       100        90        80        70        60