10 20 30 40 50
AAAACAACUAGACUGUGA--| C CG GUAUA
ACUGUC UUUUUCGGUUAUCAUGGUAC GUGCU U
UGGUAG AAGAAGUCAAUAGUGUCAUG CAUGG C
AGGGUAGAGUAACACUACCG^ U A- AAAGU
110 100 90 80 70 60