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Links from GEO DataSets

Items: 13

1.

The impact of the carbon-regulation protein SbtB on CO2-dependent gene expression in Synechocystis sp. PCC 6803

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL21131
36 Samples
Download data: TXT
Series
Accession:
GSE185298
ID:
200185298
2.

The impact of the carbon-regulation protein SbtB on CO2-dependent gene expression in Synechocystis sp. PCC 6803 [dacA]

(Submitter supplied) Gene expression changes were followed in cultures of the cyanobacterium Synechocystis sp. PCC 6803 three and 24 hours after shift from high carbon (HC) to low carbon (LC) concentrations. The acclimation to fluctuating inorganic carbon (Ci) concentrations is crucial for photoautotrophic organisms living in aquatic environments such as cyanobacteria. The PII-like regulator protein SbtB binds the second messengers cAMP or c-diAMP and is involved in the acclimation to LC. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL21131
12 Samples
Download data: TXT
Series
Accession:
GSE185297
ID:
200185297
3.

The impact of the carbon-regulation protein SbtB on CO2-dependent gene expression in Synechocystis sp. PCC 6803 [cyal]

(Submitter supplied) Gene expression changes were followed in cultures of the cyanobacterium Synechocystis sp. PCC 6803 three and 24 hours after shift from high carbon (HC) to low carbon (LC) concentrations. The acclimation to fluctuating inorganic carbon (Ci) concentrations is crucial for photoautotrophic organisms living in aquatic environments such as cyanobacteria. The PII-like regulator protein SbtB binds the second messengers cAMP or c-diAMP and is involved in the acclimation to LC. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL21131
12 Samples
Download data: TXT
Series
Accession:
GSE185296
ID:
200185296
4.

The impact of the carbon-regulation protein SbtB on CO2-dependent gene expression in Synechocystis sp. PCC 6803 [sbtB]

(Submitter supplied) Gene expression changes were followed in cultures of the cyanobacterium Synechocystis sp. PCC 6803 three and 24 hours after shift from high carbon (HC) to low carbon (LC) concentrations. The acclimation to fluctuating inorganic carbon (Ci) concentrations is crucial for photoautotrophic organisms living in aquatic environments such as cyanobacteria. The PII-like regulator protein SbtB binds the second messengers cAMP or c-diAMP and is involved in the acclimation to LC. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL21131
12 Samples
Download data: TXT
Series
Accession:
GSE185294
ID:
200185294
5.

Comparison of carboxysomal (ccmM) and photorespiratory (glcD1/D2) mutants of Synechocystis sp. PCC 6803 using metabolic and transcriptomic phenotyping

(Submitter supplied) The general acclimation of cyanobacteria to low carbon (LC) conditions includes coordinated alterations of gene expression and metabolism. To analyze possible signals for LC sensing and compensating reactions, we compared wild-type (WT) cells with two mutants of Synechocystis, the carboxysome-less mutant ccmM and the photorespiratory mutant ΔglcD1/D2. Metabolic phenotyping revealed that the mutant ΔccmM accumulated high 2-phosphoglycolate (2PG) levels while the ΔglcD1/D2 mutant accumulated glycolate, indicating oxygenase activity of RubisCO at high carbon (HC). more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL6546
26 Samples
Download data: TXT
Series
Accession:
GSE31672
ID:
200031672
6.

Integrated functional analysis of engineered carbon limitation in the CO2/HCO3-uptake deficient ∆ndhD3/ndhD4/cmpA/sbtA mutant of Synechocystis sp. PCC 6803

(Submitter supplied) Functional analysis of engineered carbon limitation in the ∆ndhD3/ndhD4/cmpA/sbtA (= ∆4) Synechocystis mutant reveals a global phenocopy of wild type acclimation to low CO2 and multi-layered Ci-regulation.
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15867
12 Samples
Download data: TXT
Series
Accession:
GSE68250
ID:
200068250
7.

CyAbrB2 contributes to the transcriptional regulation of low CO2 acclimation in Synechocystis sp. PCC 6803

(Submitter supplied) Acclimation to low CO2 conditions in cyanobacteria involves the coordinated regulation of genes mainly encoding components of the carbon concentration mechanism (CCM). Making use of several independent microarray datasets a core set of CO2-regulated genes was defined for the model strain Synechocystis sp. PCC 6803. On the transcriptional level, the CCM is mainly regulated by the well-characterized transcriptional regulators NdhR and CmpR, whereas the role of an additional regulatory protein, namely cyAbrB2 belonging to the widely distributed AbrB regulator family that was originally characterized in the genus Bacillus, is less defined. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15867
16 Samples
Download data: TXT
Series
Accession:
GSE82120
ID:
200082120
8.

Integrated transcriptomic and metabolomic characterization of the low-carbon response using an ndhR mutant of Synechocystis sp. PCC 6803

(Submitter supplied) The acquisition and assimilation of inorganic carbon (Ci) represents the largest flux of inorganic matter in photosynthetic organisms, and, hence it is tightly controlled. We studied the Ci-dependent transcriptional and metabolic regulation in the Synechocystis sp. PCC 6803 wild type compared to a DndhR mutant that is defective in the main transcriptional repressor for Ci acquisition genes, NdhR (CcmR). more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15867
13 Samples
Download data: TXT
Series
Accession:
GSE63352
ID:
200063352
9.

The gene sml0013 of Synechocystis sp. strain PCC 6803 encodes for a novel subunit of the NDH1 complex that is ubiquitous distributed among cyanobacteria.

(Submitter supplied) The NDH1 complex fulfils numerous tasks in the cyanobacterial cell such as respiration, cyclic electron flow, and inorganic carbon concentration. Despite the immense progress in our understanding of structure/function relation of the cyanobacterial NDH1 complex, the subunits catalysing the NAD(P)H docking and oxidation are still missing. The gene sml0013 of Synechocystis 6803 encodes for a small protein of unknown function for that homologs exist in all completely known cyanobacterial genomes. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15867
8 Samples
Download data: TXT
Series
Accession:
GSE48415
ID:
200048415
10.

Synechocystis sp. PCC 6803 response to inorganic carbon limitation

(Submitter supplied) Synechocystis 6803 cells was grown photoautotrophically at 32 °C buffered in BG-11 and bubbled with 3% CO2. A relatively mild Ci stress was applied by switching the aeration from 3% CO2 to air alone. After incubation under designated conditions, a 100-ml aliquot of culture was immediately combined with an equal volume of ice-cold mixture of phenol and ethanol (1:10, w/v) in an ice bath. The resultant cells were collected by centrifugation at 1000 x g for 10 min at 4 °C. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL965
16 Samples
Download data
Series
Accession:
GSE1695
ID:
200001695
11.

The cyanobacterial phytochrome 2 regulates the expression of motility-related genes through the second messenger cyclic di-GMP

(Submitter supplied) The cyanobacterial phytochrome Cph2 is a light-dependent diguanylate cyclase producing the second messenger c-di-GMP. Under blue light, the Cph2-dependent increase in the cellular c-di-GMP concentration leads to inhibition of motility in the cyanobacterium Synechocystis 6803. However, the targets of c-di-GMP in this cyanobacterium and its mechanism of action remained unclear. Here, we determined the cellular concentrations of three cyclic nucleotides in wild-type and Δcph2 cells after blue- and green light illumination. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15867
8 Samples
Download data: TXT
Series
Accession:
GSE116409
ID:
200116409
12.

Slr0643, a S2P Homolog, Is Essential for Acid Acclimation in Cyanobacterium Synechocystis sp. PCC 6803

(Submitter supplied) Every cyanobacterial species contains gene encoding site-2-protease (S2P) homolog. The studied prokaryotic S2P homologs play essential roles in regulating stress response through intramembrane proteolysis of membrane-bound anti-sigma factors. Here, gene of Slr0643, one of four S2P homologs in Synechocystis sp. PCC 6803, was insertionally disrupted to explore its physiological role. Only a partially segregated mutant was obtained, indicating its indispensability for growth. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL15530
24 Samples
Download data: XLS
Series
Accession:
GSE37747
ID:
200037747
13.

The orthologue of the RNA chaperone Hfq is essential for cell motility of the cyanobacterium Synechocystis PCC 6803

(Submitter supplied) The gene ssr3341 was previously suggested to encode an orthologue of the RNA chaperone Hfq in Synechocystis sp. strain PCC 6803. When a phototactic strain of this cyanobacterium was insertionally inactivated at ssr3341, the mutants were not transformable, and were rendered non-phototactic compared to the wild type. The loss of motility was complemented by re-introduction of the wild-type gene, correlated with the re-establishment of type IV pili on the cell surface. more...
Organism:
Synechocystis sp. PCC 6803
Type:
Expression profiling by array
Platform:
GPL6546
8 Samples
Download data: TXT
Series
Accession:
GSE10708
ID:
200010708
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