Fig. 3From: High frequency of intron retention and clustered H3K4me3-marked nucleosomes in short first introns of human long non-coding RNAsDensity of nucleosomes containing different histone modifications on A–D internal long exons of lncRNA genes, E–H internal exons of protein-coding genes from two different cell lines, H1 and IMR-90. The nucleosome density was normalized by the number of exons (28,624 and 28,199 upstream and downstream internal lncRNA exons and 141,491 and 136,989 upstream and downstream internal mRNA exons) in each caseBack to article page