10 20 30 40 50 60
GGAGCAAACAGCUGUGU- -| G CUGUU UUAGGGUCACAC
UUG CACU UGGG GAGAGUAGGUUGAUAGUU C
GAC GUGA ACUCUUCUCAUCCAACUAUCAA C
CCUUUGGACUCUGCACGU U^ A U- UGU UAGAGGGACACG
. 120 110 100 90 80 70
Deep sequencing
Comment
Although there is a templated T at the 3' end of the 3p arm, the post-transcriptional addition of a terminal 3' U is supported by the conservation of Let7-P2 processing.