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A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest [ATAC-seq]

ABSTRACT: A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest [ATAC-seq]

PROVIDER: PRJNA872530 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21227888_1.fastq.gz	Fastqsanger.gz
	SRR21227888_2.fastq.gz	Fastqsanger.gz
	SRR21227889_1.fastq.gz	Fastqsanger.gz
	SRR21227889_2.fastq.gz	Fastqsanger.gz
	SRR21227890_1.fastq.gz	Fastqsanger.gz

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A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest [RNA-seq]

Project description:Enhancer-promoter interactions preferentially occur within boundary-insulated topologically associating domains (TADs), limiting inter-TAD interactions. Enhancer clusters in linear proximity, termed super-enhancers (SEs), ensure high target gene expression levels. Little is known about SE topological regulatory impact during craniofacial development. Here, we identified 2232 genome-wide putative SEs in mouse cranial neural crest cells (CNCCs), 147 of which target genes establishing CNCC positional identity during face formation. In second pharyngeal arch (PA2) CNCCs, a multiple SE-containing region, partitioned into Hoxa Inter-TAD Regulatory Element 1 and 2 (HIRE1 and HIRE2), establishes long-range inter-TAD interactions selectively with Hoxa2, that is required for external and middle ear structures. HIRE2 deletion in a Hoxa2 haploinsufficient background results in microtia. HIRE1 deletion phenocopies the full homeotic Hoxa2 knockout phenotype and induces PA3 and PA4 CNCC abnormalities correlating with Hoxa2 and Hoxa3 transcriptional downregulation. Thus, SEs can overcome TAD insulation and regulate anterior Hoxa gene collinear expression in a CNCC subpopulation-specific manner during craniofacial development.

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A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest

Project description:A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest

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