Fig. 4

Gene set enrichments. Black lines are the distribution of enrichment across all genes. X’s indicate enrichments in a particular category. Without crosslinking (a), enrichment of histone genes is similar to the enrichment of other genes, but with crosslinking (b, c), enrichment of histone genes is much less. d Enrichment is similar for genes that do and do not encode protein. e Mitochondrial RNAs are highly enriched in ORF1p IPs. f Enrichment of other RNA species. tRNAs are less enriched that most genes, but circRNAs are highly enriched