10 20 30 40 50 AAGCUCGUACUGUACCGUA- U UC-- GC -| GUUCCU CUCC CCGU UUUGGCACUA AC AUUUUUGU G GAGG GGCA GAACUGUGAU UG UAAAAACA U GGCUUCCUAGCCUGCAGCCG - CAAU GA U^ GCAUGC . 110 100 90 80 70 60