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Bap1 loss leads to decreased expression of lineage specific commitment genes, and increased expression of pluripotency genes [RNA-seq]

ABSTRACT: Bap1 loss leads to decreased expression of lineage specific commitment genes, and increased expression of pluripotency genes [RNA-seq]

PROVIDER: PRJNA522475 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8580700.fastq.gz	Fastqsanger.gz
	SRR8580701.fastq.gz	Fastqsanger.gz
	SRR8580702.fastq.gz	Fastqsanger.gz
	SRR8580703.fastq.gz	Fastqsanger.gz
	SRR8580704.fastq.gz	Fastqsanger.gz

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Bap1 loss leads to decreased expression of lineage specific commitment genes, and increased expression of pluripotency genes [RNA-seq]

Project description:We performed morpholino-mediated knockdown of Bap1 protein expression in Xenopus laevis developing embryos, and analyzed gene expression at stage 12. We find that inhibition of Bap1 leads to decrease in lineage specific commitment genes, and increased expression of pluripotency genes.

2019-09-26 | GSE126597 | GEO

Loss of Bap1 leads to an increased global methylation and decrease in H3K27AC enhancer marks around key lineage commitment genes in Xenopus laevis embryos [ChIP-seq]

Project description:We performed morpholino-mediated knockdown of Bap1 protein expression in Xenopus laevis developing embryos, and analyzed inhibiting and activating histone marks . We find that inhibition of Bap1 leads to decrease in H3K27AC activating makrs around lineage commitment genes, and increased global methylation.

2019-09-26 | GSE126598 | GEO

Genome wide binding sites of BAP1, HCF1 and OGT

Project description:We report the genome wide binding sites of BAP1, HCF1 and OGT in bone marrow derived macrophages. De-ubiquitinating enzyme BAP1 is mutated in a hereditary cancer syndrome with increased risk of mesothelioma and uveal melanoma. Somatic BAP1 mutations occur in various malignancies. We show that mouse Bap1 gene deletion is lethal during embryogenesis, but systemic or hematopoietic-restricted deletion in adults recapitulates features of human myelodysplastic syndrome (MDS). Knockin mice expressing BAP1 with a 3xFlag tag revealed that BAP1 interacts with host cell factor–1 (HCF-1), O-linked N-acetylglucosamine transferase (OGT), and the polycomb group proteins ASXL1 and ASXL2 in vivo. OGT and HCF-1 levels were decreased by Bap1 deletion, indicating a critical role for BAP1 in stabilizing these epigenetic regulators. Human ASXL1 is mutated frequently in chronic myelomonocytic leukemia (CMML) so an ASXL/BAP1 complex may suppress CMML. A BAP1 catalytic mutation found in a MDS patient implies that BAP1 loss of function has similar consequences in mice and humans. For BAP1, bone marrow derived macrophages were used differentiated from bone marrow cells of BAP1-3X Flag Tagged KI mice we generated. For OGT and HCF1, bone marrow derived macrophages were used from BAP1 WT mice.

2012-11-07 | E-GEOD-40723 | biostudies-arrayexpress

Expression data from BAP1 depleted cells

Project description:The deubiquitinase BAP1 is a candidate tumor suppressor regulating cell proliferation in human and is required for development in Drosophila. BAP1 is assembled into high molecular weight transcriptional multi-protein complexes. In order to identify potential BAP1 target genes, global mRNA expression profiling using microarrays was conducted. U2OS cells, transfected with a non-target control shRNA or shRNAs targeting BAP1, were selected with puromycin containing medium and then synchronized at the G1/S border to allow comparative analysis of gene expression.

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Global expression analysis of BAP1 knockdown in transfected 92.1 cells

Project description:Analysis of the effect that reduced BAP1 levels have on global gene expression.The hypothesis tested was that reduction in BAP1 levels would produce changes in gene expression similar to changes observed in class 2 uveal melanomas. Data provided insight into genes that are disrupted with reduced BAP1 levels. Total RNA was isolated from 92.1 cells transfected with either control or BAP1 knockdown constructs for global expression analysis.

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Expression data from BAP1 depleted cells

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Expression profiles of restoration of BAP1 in a BAP1 deficient cell line

Project description:RNA-seq of UPMM3 with restoration of BAP1 and BAP1 mutant proteins. Cell line UPMM3 contains a frameshift mutation in BAP1.

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Transcriptome profiles of hematopoietic lineages from BAP1 WT and KO mice

Project description:BAP1 has been studied as a tumor suppressor. Our aim was to characterize genes that were altered in various hematopoietic cell types upon deletion of BAP1. BAP1 WT versus KO cells.

2012-11-07 | E-GEOD-40541 | biostudies-arrayexpress

BAP1 complex promotes transcription by opposing PRC1-mediated H2A ubiquitylation

Project description:In Drosophila, a complex consisting of Calypso and ASX catalyzes H2A deubiquitination and has been reported to act as part of the Polycomb machinery in transcriptional silencing. The mammalian homologs of these proteins (BAP1 and ASXL1/2/3, respectively), are frequently mutated in various cancer types, yet their precise functions remain unclear. Using an integrative approach based on isogenic cell lines generated with CRISPR/Cas9, we uncover an unanticipated role for BAP1 in gene activation. This function requires the assembly of an enzymatically active BAP1-associated core complex (BAP1.com) containing one of the redundant ASXL proteins. We investigate the mechanism underlying BAP1.com-mediated transcriptional regulation and show that it does not participate in Polycomb-mediated silencing. Instead, our results establish that the function of BAP1.com is to safeguard transcriptionally active genes against silencing by the Polycomb Repressive Complex 1.

2019-01-28 | PXD011808 | Pride

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