Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

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

ABSTRACT: 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.

ORGANISM(S): Synechococcus elongatus PCC 7942 = FACHB-805

PROVIDER: GSE103644 | GEO | 2017/12/12

SECONDARY ACCESSION(S): PRJNA403840

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

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.

2017-12-12 | GSE103463 | 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.

2017-12-12 | GSE103704 | 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.

2017-12-12 | GSE103462 | GEO

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 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

Transcriptome analysis of a model cyanobacterium Synechococcus elongatus PCC7942 under salt stress and protein synthesis-inhibiting stress conditions

Project description:Here, we treated the model cyanobacterium Synechococcus elongatus PCC7942 with streptomycin, which selectively binds to bacterial ribosomes, at a concentration of 50 µg/mL and performed transcriptome analysis using RNA sequencing. In addition to antibiotic stress, we treated salt stress (0.4 M NaCl) and performed RNA sequencing analysis.

2023-05-17 | GSE225426 | GEO

Synechococcus elongatus PCC 7942 = FACHB-805

Project description: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

| PRJNA403840 | ENA

Transcription profiling of Synechococcus elongatus wild type, K10 and MuD mutants growth with or without Fe

Project description:Synechococcus elongatus PCC7942 wild type, the IdiB-free S.elongatus mutant K10 (Michel et al. 1999; Microbiology, 145: page 1473-1484) and the IdiC-merodiploid mutant MuD (Pietsch et al. 2007, Photosynth. Res. 94: page 91-108) were cultivated in BG11 medium, continuously bubbled with 2%CO2-enriched air and illuminated with fluorescent bulbs with a light intensity of 100 ﾵmol photons m-s s-1. After an inoculation of a cell density of OD750nm 0.3 the cells were cultivated with iron-sufficient or iron-deficient BG11 medium. The growth time for wild type was 24h and 72h. The two mutants were cultivated for 72h only. Possible differences in the RNA amount after the cultivation with or without iron were examined using the microarray technique. .

2008-07-13 | E-MEXP-1657 | biostudies-arrayexpress

Synechococcus elongatus PCC7942 proteome's cyclic rhythm by LC-MSMS

Project description:To uncover the variation in protein abundances during 48 hours under light and dark cycles (12:12-hours), we used quantitative proteomics, with TMT 6-plex isobaric labeling. We queried the S. elongatus proteome at ten different time points spanning a single 24 hour period, leading to 20 time points over the full 48 hour period.

2014-04-02 | PXD000510 | Pride

The 2.2 A resolution structure of the catalase-peroxidase KatG from Synechococcus elongatus PCC7942.

Project description:The crystal structure of catalase-peroxidase from Synechococcus elongatus PCC7942 (SeKatG) was solved by molecular replacement and refined to an Rwork of 16.8% and an Rfree of 20.6% at 2.2 Å resolution. The asymmetric unit consisted of only one subunit of the catalase-peroxidase molecule, including a protoporphyrin IX haem moiety and two sodium ions. A typical KatG covalent adduct was formed, Met248-Tyr222-Trp94, which is a key structural element for catalase activity. The crystallographic equivalent subunit was created by a twofold symmetry operation to form the functional dimer. The overall structure of the dimer was quite similar to other KatGs. One sodium ion was located close to the proximal Trp314. The location and configuration of the proximal cation site were very similar to those of typical peroxidases such as ascorbate peroxidase. These features may provide a structural basis for the behaviour of the radical localization/delocalization during the course of the enzymatic reaction.

| S-EPMC3944687 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data