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Escherichia coli strain:K-12 MG1655

ABSTRACT: E. coli evolution to alternating substrate conditions

PROVIDER: PRJNA382354 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5450530.fastq.gz	Fastqsanger.gz
	SRR5450540.fastq.gz	Fastqsanger.gz
	SRR5450550.fastq.gz	Fastqsanger.gz
	SRR5450531.fastq.gz	Fastqsanger.gz
	SRR5450541.fastq.gz	Fastqsanger.gz

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Escherichia coli str. K-12 substr. MG1655

Project description:E. coli evolution to alternating substrate conditions

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Chip-chip from Escherichia coli MG1655 K-12, WT and ∆fnr strains

Project description:Mapping the occupancy of FNR, HNS, and IHF throughout the genome of Escherchia coli MG1655 K-12 using an affinity purified antibody under anerobic growth conditions. We also mapped the binding of the ß subunit of RNA Polymerase under both aerobic and anaerobic growth conditions. As a control, we also performed ChIP-chip on FNR in a ∆fnr mutant strain of Escherchia coli MG1655 K-12. We also examined FNR immunoprecipitation at various FNR concentrations using IPTG and Ptac::fnr (PK8263). The ∆hns/∆stpA strains were also used. Descirbed in the manuscript Genome-scale Analysis of E. coli FNR Reveals the Complexity of Bacterial Regulon Structure

2013-06-20 | GSE41186 | GEO

ArcA Chip-chip from Escherichia coli MG1655 K-12, WT and ∆arcA strains

Project description:Mapping the occupancy of ArcA throughout the genome of Escherchia coli MG1655 K-12 using an affinity purified antibody under anaerobic and aerobic growth conditions. As a control, we also performed ChIP-chip onArcA in a ∆arcA mutant strain of Escherchia coli MG1655 K-12. Described in the manuscript The response regulator ArcA uses a diverse binding site architechture to globally regulate carbon oxidation in E. coli

2013-10-17 | GSE46413 | GEO

RNA-seq analysis of Escherichia coli str. K-12 substr. MG1655

Project description:Expression profiles of wild-type and SgrR mutant E. coli strains under aMG and 2-DG-induced stress. Expression profiles of E. coli overexpressing SgrS sRNA.

2013-03-26 | GSE45443 | GEO

Expression analysis of Escherichia coli MG1655 K-12 WT and ∆fnr mutant

Project description:Investigation of whole genome gene expression level changes in a Escherichia coli MG1655 K-12 ?fnr mutant, compared to the wild-type strain. The mutations engineered into this strain produce a strain lacking the FNR protein. WT strains were grown under aerobic and anaerobic growth conditions.

2013-06-20 | GSE41189 | GEO

RNA-seq of Escherichia coli K-12 MG1655 and Stx2 phage lysogens

Project description:Here, we investigated the impact of Stx2 phage carriage on Escherichia coli (E. coli) K-12 MG1655 host gene expression. Using quantitative RNA-seq analysis, we compared the transcriptome of naïve MG1655 and the lysogens carrying the Stx2 phage of the 2011 E. coli O104:H4 outbreak strain or of the E. coli O157:H7 strain PA8, which share high degree of sequence similarity.

2019-06-17 | GSE126710 | GEO

RNA-seq analysis of Escherichia coli str. K-12 substr. MG1655

Project description:Expression profiles of wild-type and SgrR mutant E. coli strains under aMG and 2-DG-induced stress. Expression profiles of E. coli overexpressing SgrS sRNA. Illumina RNA-Seq of total RNA extracted from wild-type, SgrR/SgrS mutant and SgrS overexpressing E. coli strains grown in different conditions.

2013-03-26 | E-GEOD-45443 | biostudies-arrayexpress

E. coli K-12 MG1655 Transcriptome Quantification

Project description:To parameterize our computational model of E. coli, we measured gene expression in key conditions.

2021-03-31 | GSE85472 | GEO

NotI genomic cleavage map of Escherichia coli K-12 strain MG1655.

Project description:Several approaches were used to construct a complete NotI restriction enzyme cleavage map of the genome of Escherichia coli MG1655. The approaches included use of transposable element insertions that created auxotrophic mutations and introduced a NotI site into the genome, hybridization of NotI fragments to the ordered lambda library constructed by Kohara et al. (BioTechniques 10:474-477, 1991), Southern blotting of NotI digests with cloned genes as probes, and analysis of the known E. coli DNA sequence for NotI sites. In all, 22 NotI cleavage sites were mapped along with 26 transposon insertions. These sites were localized to clones in the lambda library and, when possible, sequenced genes. The map was compared with that of strain EMG2, a wild-type E. coli K-12 strain, and several differences were found, including a region of about 600 kb with an altered restriction pattern and an additional fragment in MG1655. Comparison of MG1655 with other strains revealed minor differences but indicated that this map was representative of that for many commonly used E. coli K-12 strains.

| S-EPMC205750 | biostudies-other

SfiI genomic cleavage map of Escherichia coli K-12 strain MG1655.

Project description:An SfiI restriction map of Escherichia coli K-12 strain MG1655 is presented. The map contains thirty-one cleavage sites separating fragments ranging in size from 407 kb to 3.7 kb. Several techniques were used in the construction of this map, including CHEF pulsed field gel electrophoresis; physical analysis of a set of twenty-six auxotrophic transposon insertions; correlation with the restriction map of Kohara and coworkers using the commercially available E. coli Gene Mapping Membranes; analysis of publicly available sequence information; and correlation of the above data with the combined genetic and physical map developed by Rudd, et al. The combination of these techniques has yielded a map in which all but one site can be localized within a range of +/- 2 kb, and over half the sites can be localized precisely by sequence data. Two sites present in the EcoSeq5 sequence database are not cleaved in MG1655 and four sites are noted to be sensitive to methylation by the dcm methylase. This map, combined with the NotI physical map of MG1655, can aid in the rapid, precise mapping of several different types of genetic alterations, including transposon mediated mutations and other insertions, inversions, deletions and duplications.

| S-EPMC312102 | biostudies-other

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