Fig. 1From: High frequency of intron retention and clustered H3K4me3-marked nucleosomes in short first introns of human long non-coding RNAsNucleosome density at A internal long non-coding exons and B mRNA exons in comparison to flanking introns in CD4+ T cells. The average nucleosome densities over 580 bp upstream and downstream of exons are shown and the central gap indicates the point of discontinuation between ‘upstream’ and ‘downstream’ data series. The nucleosome density is 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