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. 2017 Jan;27(1):27–37. doi: 10.1101/gr.214205.116

Figure 4.

Figure 4.

Internal splicing motifs are slightly weaker in lincRNAs than in mRNAs. (A) Schematic view of necessary splicing RNA motifs and splicing regulators. (B) Relative frequency of pyrimidine nucleotides upstream of the 3′ splice sites. (C,D) Relative frequencies of uracil (C) and cytosine (D) nucleotides upstream of the 3′ splice site. Number of 3′ splice sites analyzed is the same as in B. (E) Relative frequency of pyrimidine nucleotides upstream of the 3′ splice site grouped by splice-site type (alternative or constitutive). (F) Distribution of distances (bp) between 3′ splice site and the nearest canonical branch point motif. (wilcox pval) Wilcoxon P-value.