The DOI matches its Crossref record; 62 of the 62 references it cites were found in a registry or an index.
Functional cooperation between HP1 and DNMT1 mediates gene silencing
Open accessAbstract
Mammalian euchromatic gene silencing results from the combined repressive effects of histone and DNA methyltransferases. Little is known of the mechanism by which these enzymes cooperate to induce silencing. Here we show that mammalian HP1 family members mediate communication between histone and DNA methyltransferases. In vitro, methylation of histone 3 Lys 9 by G9a creates a binding platform for HP1α, β, and γ. DNMT1 interacts with HP1 resulting in increased DNA methylation on DNA and chromatin templates in vitro. The functional and physical interaction can be recapitulated in vivo. Binding of GAL4-HP1 to a reporter construct is sufficient to induce repression and DNA methylation in DNMT1 wild-type but not DNMT1-null cells. Additionally, silencing of the Survivin gene coincides with recruitment of G9a and HP1 in DNMT1 wild-type but not null cells. We conclude that direct interactions between HP1 and DNMT1 mediate silencing of euchromatic genes.
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Cites
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Cited by
Linking DNA methylation and histone modification: patterns and paradigms
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DNA methylation pathways and their crosstalk with histone methylation
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Dnmt3a-Dependent Nonpromoter DNA Methylation Facilitates Transcription of Neurogenic Genes
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Histone H3 lysine 9 trimethylation and HP1γ favor inclusion of alternative exons
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Metadata
- Authors
- Smallwood, A., Estève, P.-O., Pradhan, S., & Carey, M.
- Venue
- Genes & Development
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2007-04-30
- Volume
- 21
- Issue
- 10
- Pages
- 1169-1178
- ISSN
- 0890-9369 (ISSN-L)
- 1549-5477
- OpenAlex
- W2134488586
- Cited by
- 339
- References
- 62
- Type
- posted content
- Language
- en
- Open access
- diamond
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