Targeted DNA demethylation and activation of endogenous genes using programmable TALE-TET1 fusion proteins.
Targeted DNA demethylation and activation of endogenous genes using programmable TALE-TET1 fusion proteins.
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DOI:
10.1038/nbt.2726
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发表时间:
2013-12
影响因子:
46.9
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中科院分区:
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Genome-wide studies have defined cell type–specific patterns of DNA methylation that are important for regulating gene expression in both normal development and disease. However, determining the functional significance of specific methylation events remains challenging, owing to the lack of methods for removing such modifications in a targeted manner. Here we describe an approach for efficient targeted demethylation of specific CpGs in human cells using fusions of engineered transcription activator–like effector (TALE) repeat arrays and the TET1 hydroxylase catalytic domain. Using these TALE-TET1 fusions, we demonstrate that modification of critical methylated promoter CpG positions can lead to substantial increases in the expression of endogenous human genes. Our results delineate a strategy for understanding the functional significance of specific CpG methylation marks in the context of endogenous gene loci and validate programmable DNA demethylation reagents with potential utility for research and therapeutic applications.
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影响因子:
64.8
作者:
通讯作者:
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影响因子:
46.9
作者:
通讯作者:
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影响因子:
3.7
作者:
Rivenbark, Ashley G.;Stolzenburg, Sabine;Blancafort, Pilar
通讯作者:
Blancafort, Pilar
影响因子:
5.6
作者:
Siddique, Abu Nasar;Nunna, Suneetha;Jeltsch, Albert
通讯作者:
Jeltsch, Albert
DOI:
10.1126/science.1170116
发表时间:
2009-05-15
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Tahiliani M;Koh KP;Shen Y;Pastor WA;Bandukwala H;Brudno Y;Agarwal S;Iyer LM;Liu DR;Aravind L;Rao A
通讯作者:
Rao A