小中大参考文献
1 Jaenisch, R. & Bird, A. Epigenetic regulation of gene expression: how the genome integrates intrinsic and environmental signals. Nat Genet 33 Suppl, 245-254 (2003).
2 Goll, M. G. & Bestor, T. H. Eukaryotic cytosine methyltransferases. Annual review of biochemistry 74, 481-514 (2005).
3 Reik, W., Dean, W. & Walter, J. Epigenetic reprogramming in mammalian development. Science 293, 1089-1093 (2001).
4 Reik, W. Stability and flexibility of epigenetic gene regulation in mammalian development. Nature 447, 425-432 (2007).
5 Zhu, J. K. Active DNA demethylation mediated by DNA glycosylases. Annu Rev Genet 43, 143-166 (2009).
6 Wu, S. C. & Zhang, Y. Active DNA demethylation: many roads lead to Rome. Nat Rev Mol Cell Biol 11, 607-620 (2010).
7 Tahiliani, M. et al. Conversion of 5-methylcytosine to 5-hydroxymethylcytosine in mammalian DNA by MLL partner TET1. Science 324, 930-935 (2009).
8 Kriaucionis, S. & Heintz, N. The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. Science 324, 929-930 (2009).
9 Smiley, J. A., Kundracik, M., Landfried, D. A., Barnes, V. R., Sr. & Axhemi, A. A. Genes of the thymidine salvage pathway: thymine-7-hydroxylase from a Rhodotorula glutinis cDNA library and iso-orotate decarboxylase from Neurospora crassa. Biochim Biophys Acta 1723, 256-264 (2005).
10 Hajkova, P. et al. Genome-wide reprogramming in the mouse germ line entails the base excision repair pathway. Science 329, 78-82 (2010).
11 He, Y. F. et al. Tet-mediated formation of 5-carboxylcytosine and its excision by TDG in mammalian DNA. Science 333, 1303-1307 (2011).
12 Ito, S. et al. Tet proteins can convert 5-methylcytosine to 5-formylcytosine and 5-carboxylcytosine. Science 333, 1300-1303 (2011).