| 5hmC | 5-hydrocymethylcytosine |
| 5mC | 5-methylcytosine |
| ASD | autism spectrum disorder |
| BIRC4 | baculoviral IAP repeat-containing protein 4 |
| bp | base pairs |
| cDNA | complementary DNA |
| CTCF | CCCTC-binding factor |
| DNMT | DNA methyltransferase |
| E | embryonic day |
| ENCODE | Encyclopedia of DNA Elements |
| F | female |
| FASD | fetal alcohol spectrum disorder |
| FBS | fetal bovine serum |
| GAB3 | GRB2-associated-binding protein 3 |
| Gapdh | glyceraldehyde 3-phosphate dehydrogenase |
| h | hours |
| Hdac | Histone deacetylase 6 |
| Il3 | interleukin 3 |
| JARID1C | Jumonji/ARID domain-containing protein 1C |
| Kdm6a | lysine demethylase 6A |
| M | male |
| MDS | MECP2 duplication syndrome |
| MeCP2 | Methyl CpG binding protein 2 |
| P | postnatal day |
| PCR | polymerase chain reaction |
| PolII-S5p | RNA polymerase phosphorylated at Ser 5 |
| qRT-PCR | quantitative reverse transcription PCR |
| R | region |
| r | Pearson’s correlation coefficient |
| REs | regulatory elements |
| RPS4X | ribosomal protein S4 X-linked |
| RTT | Rett syndrome |
| SEM | standard error of the mean |
| SLC16A2 | solute carrier family 16 member 2 |
| Sry | sex-determining region protein gene on the Y chromosome |
| UBE1 | ubiquitin-like modifier activating enzyme 1 |
| XCI | X chromosome inactivation |
| Xist | X-inactive specific transcript |