10 20 30 40 50 UGGAAGAAAUAUAGCAU--| U CC C G GUUCAU CAG CAG AUGGUCU UUGAGA CCAUAUGGAGGA \ GUC GUC UACCAGA AACUCU GGUGUACCUCUU U GGAGCCUGACAUCUGAGAA^ U UA U - AAAUAA . 110 100 90 80 70