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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Nat Struct Mol Biol. 2012 Jul 22;19(8):845–852. doi: 10.1038/nsmb.2345

Figure 2. Internal Priming is Rare or Absent in DRS.

Figure 2

Nucleotide composition plots around proposed cleavage sites deduced from reads mapping to coding sequence exons reported by Wu at al.10 either without (a) or with (b) DRS confirmation. The 90.5% of sites without DRS support (a) show a nucleotide profile consistent with them being artifacts resulting from internal priming. In contrast, the 9.5% of sites with DRS support show an alternating pattern of A and U-rich sequence characteristic of A. thaliana 3′UTRs.