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Jmjd2a and Jmjd2c regulate H3K9me3 and H3K36me3 at H3K4me3 positive transcription start sites being essential for ESC self-renewal and embryogenesis

ABSTRACT: Jmjd2a and Jmjd2c regulate H3K9me3 and H3K36me3 at H3K4me3 positive transcription start sites being essential for ESC self-renewal and embryogenesis

PROVIDER: PRJNA270536 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3476670.fastq.gz	Fastqsanger.gz
	SRR3476680.fastq.gz	Fastqsanger.gz
	SRR3476671.fastq.gz	Fastqsanger.gz
	SRR3476681.fastq.gz	Fastqsanger.gz
	SRR3476672.fastq.gz	Fastqsanger.gz

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Jmjd2a and Jmjd2c regulate H3K9me3 and H3K36me3 at H3K4me3 positive transcription start sites being essential for ESC self-renewal and embryogenesis (ChIP-Seq)

Project description:We have characterized the role of the Jmjd2/Kdm4 proteins in embryonic stem cell (ESC) biology, histone methylation and gene regulation. The Jmjd2 proteins are H3K9/H3K36 histone demethylases and three Jmjd2 family members are expressed in ESCs: Jmjd2a/Kdm4a, Jmjd2b/Kdm4b and Jmjd2c/Kdm4c/Gasc1. We find that specifically Jmjd2a and Jmjd2c exert redundant functions, which are essential for ESC self-renewal and early embryonic development. ChIP-seq studies show that Jmjd2a and Jmjd2c both localize to H3K4me3 marked regions, where they have general and widespread roles preventing the accumulation of especially H3K9me3, but also H3K36me3. Jmjd2 catalytic activity is required for ESC maintenance, and increased H3K9me3 levels in knockout ESCs compromise the expression of several Jmjd2a/c targets, including genes that are important for ESC self-renewal. Thus, continual removal of H3K9 promoter methylation by Jmjd2 demethylases represents a novel mechanism ensuring transcriptional competence and stability of the pluripotent cell identity.

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Jmjd2a and Jmjd2c regulate H3K9me3 and H3K36me3 at H3K4me3 positive TSSs being essential for ESC self-renewal and embryogenesis (microarray)

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The Demethylase JMJD2C/KDM4C Localizes to H3K4me3 Positive Transcription Start Sites (Affymetrix microarray analysis)

Project description:We have mapped transcriptional changes after depletion of the histone demethylases JMJD2C/GASC1/KDM4C and JMJD2A/KDM4A alone or in combination in the esophageal squamous carcinoma cell line, KYSE150. The KYSE150 cell line contains an amplification of the JMJD2C locus. RNA was extracted from KYSE150 cells transfected with shRNAs targeting JMJD2C and/or JMJD2A. The experiment was performed in triplicates and expression levels analyzed using Affymetrix microarrays.

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The Demethylase JMJD2C/KDM4C Localizes to H3K4me3 Positive Transcription Start Sites (Affymetrix microarray analysis)

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Expression data of Jmjd2a and Jmjd2c-regulated genes in plasma cell differentiation

Project description:Base on the privious studie from our lab, we found the histone demethylases, Jmjd2a and Jmjd2c are upregulated in stimulated primary B cells, depletion of Jmjd2a and Jmjd2c in stimulated B cells resulted in failed activation of B cells. Owimg to the essential functions of Jmjd2a and Jmjd2c, We here applied loss of function approach, such as siRNA, to study the how Jmjd2a and Jmjd2c regulate plasma cell differentiation.

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ChIP-Seq of Jmjd2a and Jmjd2c in B220+ B cells

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The Demethylase JMJD2C/KDM4C Localizes to H3K4me3 Positive Transcription Start Sites (ChIP-seq MEFs)

Project description:We have mapped binding sites for the histone demethylase, Jmjd2c/Kdm4c/Gasc1, in mouse embryonic fibroblasts (MEFs) and the impact of Jmjd2c depletion on H3K9me3 and H3K36me3 distributions. ChIP-seq was performed using antibodies recognizing Jmjd2c, H3K9me3 or H3K36me3. Chromatin was obtained from conditional Jmjd2c knockout MEFs cultured in the absence or presence of OHT to induce activation of Cre recombinase and loss of Jmjd2c expression.

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Project description:We have mapped binding sites for the histone demethylase, JMJD2C/KDM4C/GASC1, and the effect of JMJD2C depletion on H3K9me3 and H3K36me3 distributions in KYSE150 cells. The human esophageal carcinoma cell line, KYSE150, contains an amplification of the JMJD2C locus. ChIP-seq was performed using chromatin from control or JMJD2C-depleted KYSE150 cells and antibodies recognizing JMJD2C, H3K4me3, H3K9me3 or H3K36me3.

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The Demethylase JMJD2C/KDM4C Localizes to H3K4me3 Positive Transcription Start Sites (ChIP-seq KYSE150 cell line)

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