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G9a regulated chromatin accessibility programs during B cell differentiation [ATAC-seq]

ABSTRACT: G9a regulated chromatin accessibility programs during B cell differentiation [ATAC-seq]

PROVIDER: PRJNA1147200 | ENA |

REPOSITORIES: ENA

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G9a regulated chromatin accessibility programs during B cell differentiation [ATAC-seq]

Project description:B cell differentiation is tightly regulated through coordinated changes in metabolism, division, expression of transcription factors, and epigenetic programming mediated by histone modifying enzymes. In this study, we examined the role of an epigenetic writer, the histone H3K9 mono and dimethyltransferse G9a, in regulating the chromatin accessibility programs during B-cell development and plasma cell (PC) formation. Utilizing a B-cell specific G9afl/flCd19Cre/+ conditional mouse model we performed ATAC-seq on naive and activated B cells and plasma cells that formed in response to LPS.

2025-07-10 | GSE274552 | GEO

G9a regulated transcriptional programs during B cell differentiation [RNA-seq]

Project description:G9a regulated transcriptional programs during B cell differentiation [RNA-seq]

| PRJNA1147201 | ENA

G9a regulated transcriptional programs during B cell differentiation [RNA-seq]

Project description:B cell differentiation is tightly regulated through coordinated changes in metabolism, division, expression of transcription factors, and epigenetic programming mediated by histone modifying enzymes. In this study, we examined the role of an epigenetic writer, the histone H3K9 mono and dimethyltransferse G9a, in regulating the transcriptional programs during B-cell development and plasma cell (PC) formation. Utilizing a B-cell specific G9afl/flCd19Cre/+ conditional mouse model we performed RNA-seq on naive and activated B cells and plasma cells that formed in response to LPS.

2025-07-10 | GSE274553 | GEO

Chromatin accessibility underlies cell-type specific programs of amphetamine-regulated gene expression in Nucleus Accumbens interneurons [ATAC-Seq]

Project description:Chromatin accessibility underlies cell-type specific programs of amphetamine-regulated gene expression in Nucleus Accumbens interneurons [ATAC-Seq]

| PRJNA751926 | ENA

ATAC-seq profiling reveals that KLF2 regulates chromatin accessibility programs in HCC

Project description:ATAC-seq profiling reveals that KLF2 regulates chromatin accessibility programs in HCC

| PRJNA1454406 | ENA

ATAC-seq profiling reveals that KLF2 regulates chromatin accessibility programs in HCC

Project description:Krüppel-like factor 2 (KLF2) is a tumor-suppressive transcription factor implicated in the regulation of epithelial-mesenchymal plasticity in hepatocellular carcinoma (HCC). In this study, we performed ATAC-seq in HCCLM3 human HCC cells with or without KLF2 overexpression to characterize KLF2-associated changes in chromatin accessibility. Comparative analysis was used to identify differentially accessible chromatin regions and to investigate how KLF2 affects the transcriptional programs associated with Hippo/YAP signaling and EMT/pEMT-related cell plasticity.

2026-04-21 | GSE328230 | GEO

Chromatin accessibility underlies cell-type specific programs of amphetamine-regulated gene expression in Nucleus Accumbens interneurons [ATAC-Seq]

Project description:Parvalbumin-expressing (PV+) interneurons of the nucleus accumbens (NAc) play an essential role in the addictive-like behaviors induced by psychostimulant exposure. To identify molecular mechanisms of PV+ neuron plasticity, we isolated interneuron nuclei from the NAc of male and female mice following acute or repeated exposure to amphetamine (AMPH) and sequenced for cell type-specific RNA expression and chromatin accessibility. AMPH regulated the transcription of hundreds of genes in PV+ interneurons, and this program was largely distinct from that regulated in other NAc GABAergic neurons. Chromatin accessibility at enhancers predicted cell-type specific gene regulation, identifying transcriptional mechanisms of differential AMPH responses. Finally, we observed dysregulation of multiple PV-specific, AMPH-regulated genes in an Mecp2 mutant mouse strain that shows heightened behavioral sensitivity to psychostimulants, suggesting the functional importance of this transcriptional program. Together these data provide novel insight into the cell-type specific programs of transcriptional plasticity in NAc neurons that underlie addictive-like behaviors.

2021-08-06 | GSE181420 | GEO

Chromatin accessibility analysis of primary GCTB samples

Project description:Analysis of chromatin accessibility in primary GCTB samples with ATAC-seq

2020-08-31 | E-MTAB-9512 | biostudies-arrayexpress

Chromatin accessibility underlies cell-type specific programs of amphetamine-regulated gene expression in Nucleus Accumbens interneurons

Project description:Chromatin accessibility underlies cell-type specific programs of amphetamine-regulated gene expression in Nucleus Accumbens interneurons

| PRJNA751927 | ENA

G9a/GLP-dependent H3K9me2 patterning alters chromatin structure at CpG islands in hematopoietic progenitors.

Project description:We profiled chromatin accessibility across the genome of HSPCs treated with either a small molecule inhibitor of G9a/GLP or DMSO. We observed that chromatin accessibility is dramatically altered at the regions of H3K9me2 nucleation. We have characterized the regions of H3K9me2 nucleation, revealing that H3K9me2 is nucleated in HSPCs at CpG islands (CGIs) and CGI-like sequences across the genome. Our analysis furthermore revealed a bias of H3K9me2 nucleation towards regions with low rates of C->T deamination, which typically lack DNA methylation. Lastly we examined the interaction of H3K9me2 and DNA methylation and determined that chromatin accessibility changes upon loss of H3K9me2 are dependent on the presence of DNA methylation. Examination of chromatin remodeling with FAIRE-seq in HSPCs treated with either a small molecule inhibitor of G9a/GLP or DMSO

2014-09-25 | E-GEOD-59749 | biostudies-arrayexpress

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