10 20 30 40 50 60 GACAGAAGGACACAGAC- CU -| C U U UCAGGACU UCCA CC GUCUA CCAGUGU UAGACUA CUGU C GGGU GG CGGAU GGUUACA GUCUGAU GACA C CGUGCUGUGGCACACAUC CG U^ U C - UGUUAUAA . 110 100 90 80 70