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. 2020 Jan 1;17(1):298. doi: 10.3390/ijerph17010298

Table 2.

The description and promoter methylation percentages (Met%) of four candidate genes with relatively differential methylation identified by methylation-dependent fragment separation (N = 22).

Gene (ID) CpG Island Location Gene Function Map
TSS Position Promoter Methylation Percentage (Met%)
(mean ± SD) upon Low and High BPA Exposure
AR (367) ChrX: 66763684–66764077 Development and maintenance of the male sexual phenotype, DNA-binding transcription factor that regulates gene expression NM_000044
Genome Position: chX 66680589–66860844(+)
Inline graphic
66763873 Bottom-low vs. top-high exposure 37.76 ± 23.87 vs. 23.73 ± 18.33
p = 0.138
TNFα (7124) Chr6: 31543344–31544344 Pro-inflammatory cytokine- stimulates the acute phase reaction and airway inflammation and regulates immune cells NM_000594 Genome Position: chr6 31651328–31654089(+)
Inline graphic
31543350 Bottom-low vs. top-high exposure 42.15 ± 36.60 vs. 23.20 ± 22.37
p = 0.16
IL-4 (16189) Chr5: 132035956–132036176 Activates B-cell and T-cell proliferation induces B-cell class switching to IgE NM_000589
Genome Position: chr5 132037271–132046267(+)
Inline graphic
132040541
Specific primers for IL-4 gene as below: Forward 5′-GTTGATTGGTTTTAAGTGATTGATAATT-3’ and backward 5′-Biotinylated ATACCCAAATAAATACTCACCTTTCACT-3’.
Bottom-low vs. top-high exposure 89.36 ± 7.65 vs. 85.73 ± 6.99
p = 0.26
MAPK1 (5594) Chr22: 20443948–20551970 Mediates cell growth, adhesion, survival, and differentiation. Regulates meiosis, mitosis and postmitotic functions NM_002745 Genome Position: chr22 2044394–20551970(-)
Inline graphic
20447613 Bottom-low vs. top-high exposure 79.82 ± 5.56 vs. 69.82 ± 5.88 p = 0.001

Figure source: MethPrimer 2.0.