Table 1

Hypomethylated regions shared between TND-HIL and BWS-HIL patients

BWSTND
CandidateChrGene nameCpG islandProbe region*No. probes†Lowest p value‡Probe region*No. probes†Lowest p value‡
Novel
candidate DMRs
1LOC728448/PPIELNo40 024 971–40 025 41131.47E−1840 024 971–40 025 23223.09E−22
4JAKMIP1Yes6 107 021–6 107 33942.48E−166 107 021–6 107 33945.83E−36
7SVOPLYes138 348 774–138 349 44336.30E−41138 348 774–138 349 44337.21E−20
9FANCCYes98 075 481–98 075 49228.29E−5898 075 481–98 075 49227.28E−55
17GLP2RNo9 729 250–9 729 42433.33E−169 729 250–9 729 42241.81E−23
21WRBYes40 757 691–40 758 20822.51E−2040 757 691–40 758 20846.71E−29
8LOC728024/ERLIN2No37 605 517–37 605 78343.87E−4037 605 359–37 605 97862.69E−42
18LOC100130522/PARD6G-AS1Yes77 905 355–77 905 94731.01E−1977 905 298–77 905 94794.38E−71
22NHP2L1Yes42 078 217–42 078 72364.08E−1542 078 217–42 078 72364.25E−54
Imprinted—not associated with ID1DIRAS343Yes68 512 539–68 517 273216.69E−3168 512 539–68 517 273205.45E−64
6FAM50B20 44Yes3 849 235–3 849 818171.70E−183 849 272–3 849 818171.64E−39
15IGF1R45No99 408 636–99 409 50652.23E−1599 408 636–99 409 95761.04E−36
19ZNF33146 47Yes54 040 774–54 058 085111.39E−4054 040 813–54 058 085109.13E−53
20L3MBTL48Yes42 142 417–42 143 502131.32E−1742 142 417–42 143 489187.60E−25
Imprinted—associated with ID6PLAGL1Yes144 328 421–144 329 909141.06E−55144 328 482–144 329 909151.22E−129
7MESTYes130 130 187–130 133 110426.12E−42130 130 383–130 133 110421.73E−45
11KCNQ1Yes2 715 837–2 722 258261.14E−732 720 463–2 722 11994.86E−13
  • Datasets from five patients with BWS-HIL and five with TND-HIL were compared with datasets from 245 and 211 batch-matched normal controls, respectively. Probes with M-values between −1 and +1 in controls and relative hypomethylation in patients with a p value of <1.33E−7 were identified. This subset was further filtered by minimal criteria for a hypomethylated locus, that is, ≥2 hypomethylated probes spaced by <2000 nucleotides. Candidate regions that meet these criteria in both BWS-HIL and TND-HIL are listed in this table.

  • *Genome position of most proximal and distal probe fulfilling hypomethylation criteria.

  • †Number of probes within the locus fulfilling hypomethylation criteria.

  • ‡Minimum p value among probes fulfilling hypomethylation criteria.

  • BWS, Beckwith–Wiedemann syndrome; DMR, differentially methylated region; HIL, hypomethylation of imprinted loci; ID, imprinting disorder; TND, transient neonatal diabetes.