A DNA methylation reader complex that enhances gene transcription

Author:

Harris C. Jake1ORCID,Scheibe Marion2ORCID,Wongpalee Somsakul Pop1ORCID,Liu Wanlu1,Cornett Evan M.3ORCID,Vaughan Robert M.3ORCID,Li Xueqin4ORCID,Chen Wei4,Xue Yan1ORCID,Zhong Zhenhui15ORCID,Yen Linda1,Barshop William D.6,Rayatpisheh Shima6,Gallego-Bartolome Javier1,Groth Martin1,Wang Zonghua57,Wohlschlegel James A.6ORCID,Du Jiamu4ORCID,Rothbart Scott B.3ORCID,Butter Falk2ORCID,Jacobsen Steven E.18ORCID

Affiliation:

1. Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA 90095, USA.

2. Quantitative Proteomics, Institute of Molecular Biology, 55128 Mainz, Germany.

3. Center for Epigenetics, Van Andel Research Institute, Grand Rapids, MI 49503, USA.

4. National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Center for Plant Stress Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201602, China.

5. State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, 350002 Fuzhou, China.

6. Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.

7. Institute of Oceanography, Minjiang University, 350108 Fuzhou, China.

8. Howard Hughes Medical Institute, University of California at Los Angeles, Los Angeles, CA, USA.

Abstract

DNA methylation promotes transcription DNA methylation generally represses transcription, but in some instances, it has also been implicated in transcription activation. Harris et al. identified a protein complex in Arabidopsis that is recruited to chromatin by DNA methylation. This complex specifically activated the transcription of genes that are already mildly transcribed but had no effect on transcriptionally silent genes such as transposable elements. The complex thereby counteracts the repression effect caused by transposon insertion in neighboring genes while leaving transposons silent. Thus, by balancing both repressive and activating transcriptional effects, DNA methylation can act to fine-tune gene expression. Science , this issue p. 1182

Funder

National Institutes of Health

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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