10 20 30 40 50
CAGACGCGAAGAAUUGUAA- UU -- G ---| UUGAA
GC GC CGCU UGGCCAAGG GGGCUGUGAUGUG \
CG CG GUGA ACUGGUUUC CCCGACACUAUAC A
UCUAGUGGUCGCAGUUUUAG U- UU A GUA^ UGCGU
. 110 100 90 80 70 60