Fig. 4From: Stable intronic sequence RNAs (sisRNAs) are selected regions in introns with distinct propertiessisRNAs are specific regions of the introns. Boxplots of the comparisons of GC% (a), CpG density (b) and CA|TG density (c) of the introns from genes without any sisRNA (grey), introns without sisRNA from host genes with sisRNAs (orange), and introns with sisRNAs (purple) to sisRNAs identified by refSeq (red) and Ensembl (blue) genesBack to article page