Fig. 1

Distribution of nullomers in the human genome and its functional subcompartments. a The number of nullomers in the human genome and its sub-categories as a function of nullomer length. b Proportion of kmer space being nullomers for nullomers K = 10–15 bp in the human genome and its functional subcompartments. c Proportion of nullomer space across reference cis-regulatory regions for nullomers K = 10–15 bp. PLS corresponds to promoter-like signature, pELS to proximal enhancer-like signature, dELS to distal enhancer-like signature, DNase H3K4me3 to DNase and H3K4me3 sites, and CTCF to CTCF-only and CTCF-bound sites