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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [MTF2-JARID2]

ABSTRACT: The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [MTF2-JARID2]

PROVIDER: PRJNA1209537 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR31968576.fastq.gz	Fastqsanger.gz
	SRR31968577.fastq.gz	Fastqsanger.gz
	SRR31968578.fastq.gz	Fastqsanger.gz
	SRR31968579.fastq.gz	Fastqsanger.gz
	SRR31968580.fastq.gz	Fastqsanger.gz

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [MTF2-JARID2]

Project description:Polycomb group proteins maintain gene expression patterns established during early development, with Polycomb Repressive Complex 2 (PRC2) methyltransferase a key regulator of cell differentiation, identity and plasticity. Consequently, extensive somatic mutations in PRC2, including gain- or loss- of function (GOF or LOF), are observed in human cancers. The regulation of chromatin structure by PRC2 is critically dependent on its EZH2 (Enhancer of Zeste Homolog 2) subunit, which catalyzes the methylation of histone H3 lysine 27 (H3K27). Recent structural studies of PRC2 revealed extensive conformational changes in the non-catalytic EZH2 N-terminal SANT-Binding Domain (SBD) during PRC2 activation, though the functional significance remains unclear. Here, we investigate how the SBD regulates PRC2 function. The domain is highly conserved in metazoans, dispensable for PRC2 assembly and chromatin localization, yet required for genome-wide histone H3K27 methylation. Further, we show that an intact SBD is necessary for the proliferation of EZH2-addicted lymphomas, and its deletion in the presence of EZH2 GOF mutations inhibits cancer cell growth. These observations provide new insights to the regulation of PRC2 activity in normal development and malignancy.

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [karpas-cutrun]

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [delSBD-ChIP-Rx]

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [Karpas-rna-seq]

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MTF2 and JARID2 function in ESC differentiation

Project description:MTF2 and JARID2 function in ESC differentiation

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [karpas-cutrun]

Project description:The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [karpas-cutrun]

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Jarid2 and PRC2, Partner in Regulating Gene Expression

Project description:The Polycomb Group proteins foster gene repression profiles required for proper development and unimpaired adulthood, and comprise the components of the PRC2 complex including the histone H3 lysine 27 (H3K27) methyltransferase Ezh2. How mammalian PRC2 accesses chromatin is unclear. We find that Jarid2 associates with PRC2 and stimulates its enzymatic activity in vitro. Jarid2 contains a Jumonji C domain, but is devoid of detectable histone demethylase activity. Instead, its artificial recruitment to a promoter in vivo resulted in co-recruitment of PRC2 with resultant increased levels of H3K27me2/3. Jarid2 co-localizes with Ezh2 and MTF2, a homologue of Drosophila Pcl, at endogenous genes in ES cells. Jarid2 can itself bind DNA and its recruitment in ES cells is interdependent with that of PRC2 as Jarid2 knockdown reduced PRC2 at its target promoters, and ES cells devoid of the PRC2 component EED are deficient in Jarid2 promoter access. In addition to the well-documented defects in embryonic viability upon down-regulation of Jarid2, ES cell differentiation is impaired, as is Oct4 silencing. Examination of two factors in ES cells

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [delSBD-ChIP-Rx]

Project description:The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [delSBD-ChIP-Rx]

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The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [Karpas-rna-seq]

Project description:The conserved N-terminal SANT1-binding domain (SBD) of EZH2 Regulates PRC2 Activity [Karpas-rna-seq]

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