Extended Data Fig. 9: Roadmap epigenome marks overlapping flanking intervals with somatic burden.

a, Maximum fold enrichment of epigenetic marks from the Roadmap Epigenomics Project across 127 cell lines. The number of cell lines with significant enrichments is indicated in parentheses (FDR ≤ 10%); asterisks denote significant enrichments in at least one cell line. b, Mean percentages (over the 127 cell lines) of regions overlapping (by at least 10% of their length) Roadmap epigenome marks, calculated using all genomic flanking regions (n = 1,637,638) and the subset of 556 flanking intervals associated with somatic eQTL (FDR ≤ 5%). c, Mutation rate per kilobase. d, Burden frequency (across the 127 cell lines) of the 556 flanking intervals in somatic eQTLs (FDR ≤ 5%), overlapping 25 Roadmap epigenome marks. DNase, DNase only; EnhA, active enhancer; EnhAc, enhancer acetylation only; EnhAF, active enhancer flank; EnhW, weak enhancer; Het, heterochromatin; PromBiv, bivalent promoters; PromD, promoter downstream; PromP, poised promoters; PromU, promoter upstream; Quies, quiescent/low; ReprPC, repressed PolyComb; TssA, active TSS; TxReg, transcription regulatory; ZNF/Rpts, ZNF genes and repeats; Tx, transcription; Tx3, transcription 3′, Tx5, transcription 5′; TxEnh3, transcription 3′ enhancer; TxEnh5, transcription 5′ enhancer; TxEnhW, transcription weak enhancer; TxWk, weak transcription.