Extended Data Fig. 9: Internal and 3’ end non-A bases of Poly(A) tails.

a, The ratio of poly(A) tails with internal non-A bases or 3’ end non-A bases. Two biological replicates were used. Data are presented as mean values±SD. b, The length distribution of poly(A) tail with or without 3’ end non-A bases. 1 nt each bin.