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Analysis of gene expression in the rel- relA+ and the rel- relAE335Q strain of Synechococcus elongatus PCC7942 - RNA sequencing during exposure to darkness (cells grown in light/dark conditions)

ABSTRACT: Analysis of gene expression in the rel- relA+ and the rel- relAE335Q strain of Synechococcus elongatus PCC7942 - RNA sequencing during exposure to darkness (cells grown in light/dark conditions)

PROVIDER: PRJNA415380 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6202550.fastq.gz	Fastqsanger.gz
	SRR6202560.fastq.gz	Fastqsanger.gz
	SRR6202570.fastq.gz	Fastqsanger.gz
	SRR6202551.fastq.gz	Fastqsanger.gz
	SRR6202561.fastq.gz	Fastqsanger.gz

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Analysis of gene expression in the rel- relA+ and the rel- relAE335Q strain of Synechococcus elongatus PCC7942 - RNA sequencing during exposure to darkness (cells grown in light/dark conditions)

Project description:We investigated the role of basal ppGpp levels in Synechococcus elongatus PCC7942 in adaptation to darkness. We performed RNA-seq experiments using the rel- relA+ and the rel- relAE335Q strain at dusk and during exposure to 12 h of darkness. We show that basal ppGpp levels is not sufficient for restoration of appropriate transcriptional shutdown in response to darkness.

2017-12-12 | GSE105774 | GEO

Analysis of gene expression in wild type and the rel- strain of Synechococcus elongatus PCC7942 - RNA sequencing during exposure to darkness (cells grown in light/dark conditions)

Project description:We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in light/dark conditions. We performed RNA-seq experiments using wild type and the rel- strain at dusk and during exposure to 12 h of darkness. We show that ppGpp is required for correct response to darkness.

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Analysis of gene expression in the rel- + relA+ and rel- + relAE335Q strains of Synechococcus elongatus PCC7942 with RNA sequencing during constant light conditions

Project description:We investigated the role of the basal levels of ppGpp in Synechococcus elongatus PCC7942 in constant light. We performed RNA-seq experiments using the rel- + relA+ and rel- + relAE335Q strains and show that basal levels of ppGpp are required for regulation of global transcription in light.

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Analysis of RNA polymerase stalling index in wild type and the rel- strain of Synechococcus elongatus PCC7942 - chromatin immunoprecipitation followed by sequencing during exposure to darkness (cells grown in light/dark conditions)

Project description:We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in light/dark conditions. We performed ChIP-seq experiments using wild type and the rel- strain at dusk, during exposure to 12 h of darkness and at dawn. We show that the RNA polymerase pausing index is globally lower in the rel- strain.

2017-12-12 | GSE106824 | GEO

Analysis of gene expression in the wild type and rel- strains of Synechococcus elongatus PCC7942 with RNA sequencing during constant light conditions

Project description:Rel is an enzyme involved in the metabolism of ppGpp. We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in constant light and after exposure to darkness. We performed RNA-seq experiments using the rel- strain and wild type and show that ppGpp is required for regulation of global transcription in light and in darkness.

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Gene expression in the wild type + relA+ and wild type + relAE335Q strains of Synechococcus elongatus PCC7942 after induction of expression of RelA+ or RelAE335Q with theophylline at subjective dusk - RNA sequencing during constant light conditions

Project description:We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in constant light. We performed RNA-seq experiments using wild type + relA+ and wild type + relAE335Q strains after induction with theophylline starting at subjective dusk. We show that ppGpp induction inhibits global transcription in light.

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Transcriptional profiling of NF-kB's Rel and RelA proteins

Project description:Rel and RelA proteins were stably expressed in the chicken DT40 pre-B cell line and analyzed by transcription profiling to identify transformation-impacting genes regulated by NF-kB’s oncogenic v-Rel and c-Rel proteins. This analysis uncovered both common and differential gene expression profiles in cells expressing Rel vs. RelA proteins, and revealed that Rel protein expression can lead to gene-specific transcriptional repression, as seen for key B-cell receptor (BCR) components and signaling molecules like B-cell linker (BLNK), the B-cell adaptor for PI3K (BCAP) and Igλ. These were also downregulated in cells expressing a transformation-competent chimeric RelA/v-Rel protein, suggesting a correlation with the capacity of Rel proteins to transform lymphocytes. DNA binding, ChIP and transformation assays indicate that downregulation of BLNK and BCAP is an important contributing factor to the malignant transformation of lymphocytes by Rel and suggest that gene repression may be as important as transcriptional activation for the transforming activity of Rel proteins. Keywords: Comparative transcriptional profiling

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Project description:c-Rel and RelA are members of the NF-kappaB family of transcription factors. They both have important roles in T cell activation. To discover where in the genome c-Rel and RelA bind and hence which genes they may directly target, we used ChIP-chip with EL4 cells stimulated with phorbol ester (PMA) and Ionomycin. We have identified regions in EL4 cells (background strain: C57BL/6N) activated for 2h or 8h by PMA and Ionomycin, that bind the transcription factors c-Rel and RelA. Immunoprecipitated samples from EL4 cells stimulated with PMA and ionomycin for 2 h and 8 h with antibodies against RelA or c-Rel respectively were used for ChIP-on-chip experiments. In addition, samples from total input and mock immunoprecipitation were used as controls. Biological triplicates were used.

2013-12-29 | E-GEOD-42818 | biostudies-arrayexpress

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Synechococcus elongatus PCC 7942 = FACHB-805

Project description:Analysis of gene expression in the rel- + relA+ and rel- + relAE335Q strains of Synechococcus elongatus PCC7942 with RNA sequencing during constant light conditions

| PRJNA401777 | ENA

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