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ChIP-seq of Tbx20 tagged with GFP in E11.5 mouse hearts

ABSTRACT: We performed ChIP-seq of Tbx20 tagged with GFP in mouse hearts to identify binding sites for this transcription factor. This data set is part of the study âEndocardial Tbx20 is essential for mesenchymal and myocardial cell movements required for cardiac septationâ.

INSTRUMENT(S): Illumina HiSeq 2000

ORGANISM(S): Mus musculus

SUBMITTER: Ivy Aneas

PROVIDER: E-MTAB-3967 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Probing chromatin landscape reveals roles of endocardial TBX20 in septation.

Boogerd Cornelis J CJ Aneas Ivy I Sakabe Noboru N Dirschinger Ralph J RJ Cheng Quen J QJ Zhou Bin B Chen Ju J Nobrega Marcelo A MA Evans Sylvia M SM

The Journal of clinical investigation 20160627 8

Mutations in the T-box transcription factor TBX20 are associated with multiple forms of congenital heart defects, including cardiac septal abnormalities, but our understanding of the contributions of endocardial TBX20 to heart development remains incomplete. Here, we investigated how TBX20 interacts with endocardial gene networks to drive the mesenchymal and myocardial movements that are essential for outflow tract and atrioventricular septation. Selective ablation of Tbx20 in murine endocardial ...[more]

PMID: 27348591

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Gene expression analysis of control and Tbx20 mutant Tie2Cre lineage from E12.5 hearts

Project description:To investigate roles for Tbx20 in endocardium, we ablated Tbx20 utilizing Tie2Cre. Tie2Cre;Tbx20 mutants died at E14, exhibiting defects in multiple aspects of cardiac septation. Although endocardial cells lacking Tbx20 were able to undergo endothelial-to-mesenchymal transition, cushion mesenchymal cells lacking Tbx20 did not disperse normally. Non-cell autonomous roles of endocardial Tbx20 were also revealed, as evidenced by decreased myocardialization of outflow tract and failure of dorsal mesenchymal protrusion formation in mutants. To examine how ablation of Tbx20 in endocardial lineages affected gene expression, we performed global gene expression analysis on purified endocardial lineages. E12.5 hearts were dissociated, and Tie2Cre;RosatdTom lineage traced cells of controls and mutants were isolated by fluorescence activated cell sorting (FACS), after exclusion of blood cells (Ter119+, CD41+ and/or CD45+). Mutant endocardial lineages exhibited decreased expression of genes associated with extracellular matrix and cell migration. E12.5 hearts were dissociated, and Tie2Cre;RosatdTom lineage traced cells of controls and mutants were isolated by fluorescence activated cell sorting (FACS), after exclusion of blood cells (Ter119+, CD41+ and/or CD45+). FACS sorted Tie2Cre lineage from E12.5 hearts: Tie2Cre;Tbx20 +/loxP Control hearts versus Tie2Cre;Tbx20 loxP/- mutant hearts

2016-07-01 | E-GEOD-73858 | biostudies-arrayexpress

Gene expression analysis of control and Tbx20 mutant Tie2Cre lineage from E12.5 hearts

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ATAC-seq on endocardial cells from E12.5 mouse hearts in Tbx20 knockouts and wild type counterparts

Project description:We used ATAC-seq (Buenrostro et al, 2013) to identify regions of open chromatin in FACS sorted mouse endothelial cells from E12.5 hearts. Please note that the animals were injected at different dates, which resulted in different effects of the knockout, as indicated in the batch attribute of the samples. This data set is part of the study \Endocardial Tbx20 is essential for mesenchymal and myocardial cell movements required for cardiac septation\. Peaks were called using HOMER (-gsize 1.87e9 -region -tbp 1). Replicate 1: -fdr 1e-8, replicate 2: default parameters. Buenrostro JD, Giresi PG, Zaba LC, Chang HY, Greenleaf WJ. 2013. Transposition of native chromatin for fast and sensitive epigenomic profiling of open chromatin, DNA-binding proteins and nucleosome position. Nat Methods 10: 12138.

2017-06-02 | E-MTAB-3972 | biostudies-arrayexpress

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Genome-wide mapping of Tbx20 (GFP-tagged) in adult mouse whole heart

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2018-06-14 | E-MTAB-5596 | biostudies-arrayexpress

ChIP-seq of Tbx20 tagged with GFP in E11.5 mouse hearts

Project description:ChIP-seq of Tbx20 tagged with GFP in E11.5 mouse hearts

| PRJEB11457 | ENA

TMT analysis of TBX20:CASZ1 mutant mice with dilated cardiomyopathy

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