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The phosphorylation of FOXA1-S331 is indispensable for FOXA1-AR dependent cistrome [ATAC-seq]

ABSTRACT: To define the function of FOXA1-S331 phosphorylation, we substituted S331 in both FOXA1 alleles for alanine in C4-2 cells via CRISPR/Cas9-based gene editing, thereby generating phosphorylation incompetent FOXA1S331A cells. We directly assessed the consequences of phospho-incompetent FOXA1S331A mutation on the transcription profile, chromatin deposition of FOXA1, AR, H3K27ac and chromatin accessibility.

ORGANISM(S): Homo sapiens

PROVIDER: GSE232122 | GEO | 2024/05/01

REPOSITORIES: GEO

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The phosphorylation of FOXA1-S331 is indispensable for FOXA1-AR dependent cistrome [RNA-seq]

Project description:To define the function of FOXA1-S331 phosphorylation, we substituted S331 in both FOXA1 alleles for alanine in C4-2 cells via CRISPR/Cas9-based gene editing, thereby generating phosphorylation incompetent FOXA1S331A cells. We directly assessed the consequences of phospho-incompetent FOXA1S331A mutation on the transcription profile, chromatin deposition of FOXA1, AR, H3K27ac and chromatin accessibility.

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The phosphorylation of FOXA1-S331 is indispensable for FOXA1-AR dependent cistrome.

Project description:This SuperSeries is composed of the SubSeries listed below.

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Cistrome analyses of AR-V7.

Project description:Although AR-V7 has been intensively studied, it remains unclear whether AR-V7 can specifically activate a distinctive transcriptional program from the full-length AR (AR-FL), and whether AR-V7 may play a role in accelerating the metastatic progression of castration-resistant PCa (CRPC). In this study, we hypothesize that AR-V7 can drive a distinct transcription program from AR-FL in CRPC condition. To test this, we used LNCaP model with inducible overexpression of AR-V7 or AR-FL to examine the effects of AR-V7 overexpression or AR-FL overexpression stimulated with DHT for 4 hours on AR-V7 or AR-FL cistromes. We also studied the effects of AR-V7 on cistromes of pioneer factor FOXA1 and active histone marker H3K27ac, and the function of phosphorylation at Ser81 on AR-V7 function in CRPC.

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