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