Table 1.
Genomic Region | Number of Regions | Size of Regions (bp) | % of Genome | % Regions in Hypo Blocks | Correlation | Jaccard Test P-Value 3,4 |
EOC Hypomethylated Blocks | 2208 | 8.81E + 08 | 29 | 100 | N/A | N/A |
LADs | 1231 | 1.13E + 09 | 37 | 36 | Direct | <0.01 |
Early Replicating | 910 | 7.10E + 08 | 23 | 25 | Indirect | <0.01 |
Late-Replicating | 1155 | 5.81E + 08 | 19 | 36 | Direct | <0.01 |
CpG islands | 27,537 | 2.10E + 07 | 1 | 32 | Direct | <0.01 |
Genes | 28,489 | 1.41E + 09 | 46 | 32 | Direct | <0.01 |
# binding sites | # binding sites in hypo blocks | % binding sites in hypo blocks | Fold Enrichment | Correlation | Projection Test P-value | |
EZH2 Sites | 14,818 | 6103 | 41 | 1.41 | Direct | <0.01 |
SUZ12 Sites | 5772 | 2497 | 43 | 1.48 | Direct | <0.01 |
CTCF Sites | 162,209 | 52,216 | 32 | 1.10 | Direct | <0.01 |
# peaks | # peaks in hypo blocks | % peaks in hypo blocks | Fold Enrichment | Correlation | Jaccard Test P-value | |
H3K4me3 | 33,116 | 8655 | 26 | 0.90 | Indirect | <0.01 |
H3K9me3 | 49,328 | 18,264 | 37 | 1.28 | Direct | <0.01 |
H3K27ac | 67,989 | 17,935 | 26 | 0.91 | Indirect | <0.01 |
H3K27me3 | 40,126 | 15,428 | 38 | 1.32 | Direct | <0.01 |
H3K36me3 | 33,342 | 6303 | 19 | 0.65 | Indirect | <0.01 |
# of repeats | # repeats in hypo blocks | % repeats in hypo blocks | Fold Change | Correlation | Jaccard Test P-value | |
LINE-1 | 951,780 | 264,352 | 28 | 0.96 | Direct | <0.01 |
Alu/SINE | 1,194,734 | 292,495 | 24 | 0.84 | Indirect | <0.01 |
Satellites | 6775 | 1052 | 16 | 0.64 | Indirect | <0.01 |
1 Hypomethylated blocks were determined from Methyl-seq comparison of NE (OSE + FTE average) to GDHO(+) EOC; 2 Genomic features were retrieved from public databases, as described in Methods; 3 Statistical tests were performed using GenometriCorr (Favorov et al., PLoS Computational Biology, 2012), with hypomethylated block coordinates used as the reference value; 4 All tests, other than CpG islands, gave the same result when using hypomethylated blocks as query and the genomic features as the reference value. In contrast, the association with CpG islands was not significant.