10 20 30 40 50 UUCGACCCGGAUCCUCA- -| GC U G ACAGUUCUA GCUU CUCUGGU AGUGGUUCU AACA UUCA U CGGA GGGACUA UCACCAGGA UUGU AAGU U AGGCGACGCCGACGACUC C^ GC U A GUUAAAAAA . 110 100 90 80 70 60