Modular fluorescence complementation sensors for live cell detection of epigenetic signals at endogenous genomic sites.
Modular fluorescence complementation sensors for live cell detection of epigenetic signals at endogenous genomic sites.
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DOI:
10.1038/s41467-017-00457-z
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发表时间:
2017-09-21
影响因子:
16.6
通讯作者:
Jeltsch A
中科院分区:
文献类型:
--
作者:
Lungu C;Pinter S;Broche J;Rathert P;Jeltsch A
Investigation of the fundamental role of epigenetic processes requires methods for the locus-specific detection of epigenetic modifications in living cells. Here, we address this urgent demand by developing four modular fluorescence complementation-based epigenetic biosensors for live-cell microscopy applications. These tools combine engineered DNA-binding proteins with domains recognizing defined epigenetic marks, both fused to non-fluorescent fragments of a fluorescent protein. The presence of the epigenetic mark at the target DNA sequence leads to the reconstitution of a functional fluorophore. With this approach, we could for the first time directly detect DNA methylation and histone 3 lysine 9 trimethylation at endogenous genomic sites in live cells and follow dynamic changes in these marks upon drug treatment, induction of epigenetic enzymes and during the cell cycle. We anticipate that this versatile technology will improve our understanding of how specific epigenetic signatures are set, erased and maintained during embryonic development or disease onset. Tools for imaging epigenetic modifications can shed light on the regulation of epigenetic processes. Here, the authors present a fluorescence complementation approach for detection of DNA and histone methylation at endogenous genomic sites allowing following of dynamic changes of these marks by live-cell microscopy.
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影响因子:
64.5
作者:
Dekker J;Mirny L
通讯作者:
Mirny L
影响因子:
14.9
作者:
Casas-Delucchi CS;van Bemmel JG;Haase S;Herce HD;Nowak D;Meilinger D;Stear JH;Leonhardt H;Cardoso MC
通讯作者:
Cardoso MC
影响因子:
4.6
作者:
Hu H;Zhang H;Wang S;Ding M;An H;Hou Y;Yang X;Wei W;Sun Y;Tang C
通讯作者:
Tang C
DOI:
10.1111/tpj.12639
发表时间:
2014-11
期刊:
The Plant journal : for cell and molecular biology
影响因子:
--
作者:
Gookin TE;Assmann SM
通讯作者:
Assmann SM
DOI:
10.1073/pnas.0604602103
发表时间:
2006-09-19
影响因子:
11.1
作者:
Egger, Gerda;Jeong, Shinwu;Liang, Gangning
通讯作者:
Liang, Gangning