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The H2BE76K mutation drives breast cancer development by enhancing the transcription of ADAM19

ABSTRACT: Study was conducted to understand the effect of the cancer associated H2BE76K mutation. Using CRISPR/Cas9 Knock-in cell lines expressing FLAG-tagged WT and E76K mutant H2B, we conducted gene expression profiling experiments and studied the effect of the H2BE76K mutation on H2B occupancy using CUT&RUN sequencing.

ORGANISM(S): Homo sapiens

PROVIDER: GSE132749 | GEO | 2021/02/01

REPOSITORIES: GEO

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H2BG53D mutation in PDAC

Project description:Study was conducted to understand the effect of the cancer associated H2BG53D mutation in PDAC. Using CRISPR/Cas9 Knock-in cell lines expressing FLAG-tagged WT and G53D mutant H2B, we conducted gene expression profilling experiments and studied the effect of the H2BG53D mutation on transcription and PDAC development.

2020-07-01 | GSE134864 | GEO

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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ATAC-Seq]

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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [RNA-Seq]

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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ChIP-Seq]

Project description:H2BK12ac ChIP-seq were performed in MDA-MB-231 cells ectopically expressing FLAG-tagged WT, D51A, or D51N H2B ± treatment with A485 (5 M, 2 hours) or vehicle (DMSO).

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Tet1 regulates embryonic stem cell differentiation programs and development independent of its catalytic activity.

Project description:In this study: (1) we characterized the Tet1 non-catalytic functions in the regulation of ESC gene expression programs by performing transcriptomic analysis of Tet1 wild type (WT), Tet1 catalytic mutant (Mut) and Tet1 knockout (KO) mouse ESCs by RNA-seq to identify differentially expressed genes. (2) We mapped the genome-wide occupancy of endogenously FLAG-tagged Tet1-WT and Tet1-Mut in ESCs by CUT&Tag using a specific antibody against FLAG. (3) We determined how the genome-wide occupancy of the epigenetic modifiers: Ezh2, Sin3a, Chd4 and the enrichment of histone marks: H3K27me3, H3K4me3 and H3K27ac, are affected in Tet1-KO ESCs versus Tet1-WT and Tet1-Mut by CUT&Tag or CUT&RUN. (4) We analyzed methylation levels and distribution in Tet1-WT, Tet1-Mut and Tet1-KO ESCs by WGBS, to confirm Tet1 non-catalytic targets with no differential methylation. (5) We explored whether Tet1 non-catalytic functions play a role in chromatin accessibility by performing ATAC-seq in Tet1-WT, Tet1-Mut and Tet1-KO ESCs.

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CUT&RUN chromatin profiling of endogenously tagged and native BATF

Project description:CUT&RUN chromatin profiling of endogenously tagged and native BATF

| PRJNA427801 | ENA

H2B CUT&RUN in WT and ATF3 iKO satellite cells

Project description:H2B CUT&RUN in WT and ATF3 iKO satellite cells

| PRJNA844383 | ENA

Evi1 governs Kdm6b-mediated histone demethylation to finely regulate the Laptm4b-driven mTORC pathway in vivo [CUT&RUN]

Project description:Ecotropic viral integration site 1 (EVI1/MECOM) overexpression is common in myeloid malignancies. We present a new Evi1 transgenic mouse model with inducible expression in hematopoietic stem cells (HSCs) and progenitor cells (HPCs) at lower levels. Upon exogenous Evi1 induction, mice displayed anemia, thrombocytopenia, lymphopenia, and dysplasia in erythroid and megakaryocyte cells with a significant expansion of committed myeloid progenitor cells, resembling human Myelodysplastic syndrome/Myeloproliferative neoplasm (MDS/MPN)-like disease. Methods: Lin-C-Kit+ cells were isolated from 2 Evi1 overexpressing mice for CUT&RUN assay using flag antibody and IgG. Lin-C-Kit+ cells were isolated from 2 pair of WT mice and Evi1 overexpressing mice for CUT&RUN assay using H3K27me3 antibody.Around 5X105 Lin-C-Kit+ cells for each group were used in CUT&RUN assay. About 10 ng of the purified CUT&RUN DNA was used for preparation of multiplexed libraries with the NEB Ultra II DNA Library Prep Kit per manufacturer's instruction (NEB #E7103). Sequencing was conducted using an Illumina NextSeq 500 Sequencing System. Results: Molecular pathways altered in Lin-C-Kit+ cells from Evi1-OE mice. Conclusions: Evi1 has a special binding profiling in Lin-C-Kit+ cells. The modification profile of H3K27me3 was altered in Evi1-OE hematopoietic stem and progenitor cells.

2023-06-27 | GSE235439 | GEO

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