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Synechococcus elongatus

ABSTRACT: Synechococcus elongatus PCC 7942 Raw sequence reads

PROVIDER: PRJNA1114875 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29274710.fastq.gz	Fastqsanger.gz
	SRR29274711.fastq.gz	Fastqsanger.gz
	SRR29274712.fastq.gz	Fastqsanger.gz
	SRR29274713.fastq.gz	Fastqsanger.gz

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Synechococcus elongatus PCC 7942 = FACHB-805

Project description:Synechococcus elongatus PCC 7942 Raw sequence reads

| PRJNA1240180 | ENA

Circadian transcriptional profile of Synechococcus under the kaiA overexpression

Project description:In the unicellular cyanobacterium, Synechococcus elongatus PCC 7942, essentially all promoter activities are under the control of the circadian clock in continuous light (LL) conditions. Here, we employed high-density oligonucleotide arrays to investigate comprehensive profiles of genome-wide Synechococcus gene expression in kaiA-overexpressor (Ptrc::[GTG]kaiA) strains under LL. KaiC has been proposed to globally activate gene expression, our analysis revealed that dawn expressing genes were downregulated by kaiA-overexpression, such that the clock was arrested at subjective dawn. IPTG-inducible kaiA-overexpressor (oxA) S. elongatus PCC 7942 strains were analyzed under continuous light (LL) using Affymetrix high-density oligonucleotide microarrays (GeneChip CustomExpress Arrays) representing predicted 2,515 protein-coding genes on the genome of Synechococcus elongatus PCC 6301, which can be used also to the almost homologous strain, S. elongatus PCC 7942: a single experiment in oxA under LL in the presence or absence of an inducer, IPTG, from hour 24 to 48 in LL timecourse data (24~48 hours under continuous light) from Synechococcus elongatus PCC 7942 (inducible kaiA-overexpressor) strains

2013-12-31 | E-GEOD-47015 | biostudies-arrayexpress

Circadian transcriptional profile of Synechococcus without KaiC phosphorylation cycling

Project description:In the unicellular cyanobacterium, Synechococcus elongatus PCC 7942, essentially all promoter activities are under the control of the circadian clock in continuous light (LL) conditions. Here, we employed high-density oligonucleotide arrays to investigate comprehensive profiles of genome-wide Synechococcus gene expression in the kaiCEE mutant strains in which the KaiC phosphorylation cycling is abolished under LL.. In the kaiCEE mutant strain more than 23% of transcripts significantly oscillated with a period of about 48 h. 409 cyclic genes were shared with the wild type strains. kaiCEE mutant strain was analyzed under continuous light (LL) using Affymetrix high-density oligonucleotide microarrays (GeneChip CustomExpress Arrays) representing predicted 2,515 protein-coding genes on the genome of Synechococcus elongatus PCC 6301, which can be used also to the almost homologous strain, S. elongatus PCC 7942: a single experiment in kaiCEE mutant under LL from hour 8 to 96 in LL timecourse data (8~96 hours under continuous light) from Synechococcus elongatus PCC 7942 (kaiCEE mutant) strains

2013-11-28 | E-GEOD-48901 | biostudies-arrayexpress

Nocturnal expression data of Synechococcus in WT and kaiABC-null strains

Project description:In the unicellular cyanobacterium, Synechococcus elongatus PCC 7942, most of genes are downregulated in the dark, while 10% of genes are upregulated. Here, we employed high-density oligonucleotide arrays to explore comprehensive profiles of genome-wide Synechococcus gene expression in wild type and kaiABC-null strains under continuous dark (DD) conditions. We found that expression profile of a subset of genes on the genome in DD was dramatically affected by kaiABC-nullification, and the magnitude of dark-induction was dependent on time when cells were transferred from light to DD Keywords: timecourse data (0-12 h) under continuous darkness after dark:light cycles from Synechococcus elongatus PCC 7942 wild type and kaiABC-null strains Wild type (WT) and kaiABC-null (DkaiABC) S. elongatus PCC 7942 strains were analyzed under continuous dark (DD) conditions after two 12h:12h light:dark (LD) cycles using Affymetrix high-density oligonucleotide microarrays (GeneChip CustomExpress Arrays) representing predicted 2,515 protein-coding genes on the genome of Synechococcus elongatus PCC 6301, which can be used also to the almost homologous strain, S. elongatus PCC 7942: Two independent experiments in WT and Dkai strains under DD (hours 0, 0.5, 1, 2, 4, 8 and 12).

2011-09-29 | E-GEOD-22468 | biostudies-arrayexpress

Synechococcus elongatus PCC 7942 = FACHB-805