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Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans

ABSTRACT: Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans

PROVIDER: PRJNA661258 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12581123_1.fastq.gz	Fastqsanger.gz
	SRR12581124_1.fastq.gz	Fastqsanger.gz
	SRR12581125_1.fastq.gz	Fastqsanger.gz
	SRR12581126_1.fastq.gz	Fastqsanger.gz
	SRR12581127_1.fastq.gz	Fastqsanger.gz

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Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Blastomeres]

Project description:Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Blastomeres]

| PRJNA661263 | ENA

Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Young adult]

Project description:Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Young adult]

| PRJNA661264 | ENA

C. elegans L4 hypodermal RNA polymerase DamID

Project description:To adapt RNA polymerase DamID (RAPID) for FLP-mediated spatial control in Caenorhabditis elegans, we inserted a Dam::rpb-6 fusion gene downstream of a FRT-flanked mCh::his-58 cassette and under control of the hsp-16.41 promoter. We introduced a single copy of this construct into the C. elegans genome and crossed the resulting line with a dpy-7p::FLP driver to enable basal Dam::rpb-6 expression in the hypodermis. Nematodes were cultured at 20 degrees Celcius to ensure low levels of Dam::RPB-6 expression in the hypodermis and total genomic DNA was purified from L4 larvae. DNA from animals expressing GFP::Dam was used to control for unspecific methylation. The genome-wide association profile of Dam::RPB-6 was determined by deep sequencing, which revealed a list of 2331 protein coding genes with FDR < 0.05. Original RAPID reference: Gomez-Saldivar et al (2020) Tissue-Specific Transcription Footprinting Using RNA PoI DamID (RAPID) in Caenorhabditis elegans. Genetics 216, 931–945. doi:10.1534/genetics.120.303774

2022-09-30 | GSE214300 | GEO

Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Blastomeres]

Project description:Gene expression is a major determinant of cell fate and physiology, yet it is notoriously difficult to characterize for the widely used model system C. elegans. By using a new method based on in vivo covalent modification of DNA by RNA polymerases, we determine genome-wide transcription patterns in single tissues of embryos or young adult animals. We show that the method is able to identify actively transcribed genes in tissues representing down to 0.2% of the somatic cells in adult animals. Additionally, this method can be fully performed in a single laboratory by using third generation sequencing methods (ONT).

2020-10-28 | GSE157415 | GEO

Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans [Young adult]

2020-10-28 | GSE157416 | GEO

Tissue-specific transcription footprinting using RNA PolII DamID (RAPID) in C. elegans

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

2020-10-28 | GSE157418 | GEO

Tissue-Specific Transcription Footprinting Using RNA PoI DamID (RAPID) in <i>Caenorhabditis elegans</i>.

Project description:Differential gene expression across cell types underlies development and cell physiology in multicellular organisms. Caenorhabditis elegans is a powerful, extensively used model to address these biological questions. A remaining bottleneck relates to the difficulty to obtain comprehensive tissue-specific gene transcription data, since available methods are still challenging to execute and/or require large worm populations. Here, we introduce the RNA Polymerase DamID (RAPID) approach, in which the Dam methyltransferase is fused to a ubiquitous RNA polymerase subunit to create transcriptional footprints via methyl marks on the DNA of transcribed genes. To validate the method, we determined the polymerase footprints in whole animals, in sorted embryonic blastomeres and in different tissues from intact young adults by driving tissue-specific Dam fusion expression. We obtained meaningful transcriptional footprints in line with RNA-sequencing (RNA-seq) studies in whole animals or specific tissues. To challenge the sensitivity of RAPID and demonstrate its utility to determine novel tissue-specific transcriptional profiles, we determined the transcriptional footprints of the pair of XXX neuroendocrine cells, representing 0.2% of the somatic cell content of the animals. We identified 3901 candidate genes with putatively active transcription in XXX cells, including the few previously known markers for these cells. Using transcriptional reporters for a subset of new hits, we confirmed that the majority of them were expressed in XXX cells and identified novel XXX-specific markers. Taken together, our work establishes RAPID as a valid method for the determination of RNA polymerase footprints in specific tissues of C. elegans without the need for cell sorting or RNA tagging.

| S-EPMC7768263 | biostudies-literature

C. elegans L4 hypodermal RNA polymerase DamID

Project description:C. elegans L4 hypodermal RNA polymerase DamID

| PRJNA884838 | ENA

Gene expression profiling of epidermal cell types in C. elegans using Targeted DamID

Project description:In this study we use targeted DamID to assay RNA polymerase occupancy across the genome specifically within the seam cells and hypodermis of C. elegans to identify genes expressed in these cell-types.

2021-08-31 | GSE164775 | GEO

LMN-1-DamID in N2 and set-25(n5021) met-2(n4256) mutant early C. elegans embryos

Project description:We asked if the perinuclear position of chromosome arms in C. elegans depends on the histone methyltransferases MET-2 and SET-25. To this end, we performed LMN-1-DamID in wild-type (N2) and mutant (set-25 met-2) strains. LMN-1-DamID signal on chromosome arms was significantly reduced in the mutant.

2012-09-04 | GSE37226 | GEO

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