ChIP-seq study of sigma factors in Pseudomonas aeruginosa
Ontology highlight
ABSTRACT:
ORGANISM(S): Pseudomonas aeruginosa
SUBMITTER: Denitsa Eckweiler
PROVIDER: E-GEOD-54997 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:Sigma factors are master regulators of bacterial transcription which direct gene expression of specific subsets of genes. In particular, alternative sigma factors are well-known to be key players of bacterial adaptation to changing environments. To elucidate the regulatory network of sigma factors in P. aeruginosa, an integrative approach including sigma factor-dependent mRNA profiling was performed to define the primary regulon of each sigma factor. Sigma factor hyper-expressing strains harboring the sigma factor gene in trans under control of the araBAD promoter and sigma factor deletion mutants were constructed. Under optimal conditions regarding sigma factor activity and optional induction of sigma factor expression, bacteria were harvested and total RNA was extracted. Upon mRNA enrichment, RNA was fragmented and ligated to specific RNA-adapters containing a hexameric barcode sequence for multiplexing. These RNA-libraries were reverse transcribed and amplified resulting in cDNA libraries which were sequenced on Illumina platforms. Sequence reads were separated according to their barcodes and barcode sequences were removed. The short reads were mapped to the genome sequence of the reference strain P. aeruginosa PA14 wild-type using stampy with default settings. The R package DESeq was used for differential gene expression analysis.
2015-02-12 | E-GEOD-54998 | biostudies-arrayexpress
Project description:Sigma factors are master regulators of bacterial transcription which direct gene expression of specific subsets of genes. In particular, alternative sigma factors are well-known to be key players of bacterial adaptation to changing environments. To elucidate the regulatory network of sigma factors in P. aeruginosa, an integrative approach including ChIP-seq of 11 polyhistidine-tag sigma factors was performed to define the primary regulon of each sigma factor.
2015-02-12 | GSE54997 | GEO
Project description:modENCODE_submission_3378 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP212(official name : OP212 genotype : unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : F45C12.2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The F45C12.2::EGFP fusion protein is expressed in the correct F45C12.2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the F45C12.2 transcription factor. made_by : Mihail Sarov ); Developmental Stage: L3; Genotype: unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: F45C12.2; EXPERIMENTAL FACTORS: Developmental Stage L3; Target gene F45C12.2; Strain OP212(official name : OP212 genotype : unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : F45C12.2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The F45C12.2::EGFP fusion protein is expressed in the correct F45C12.2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the F45C12.2 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2011-05-24 | E-GEOD-29478 | biostudies-arrayexpress
Project description:modENCODE_submission_3379 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP212(official name : OP212 genotype : unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : F45C12.2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The F45C12.2::EGFP fusion protein is expressed in the correct F45C12.2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the F45C12.2 transcription factor. made_by : Mihail Sarov ); Developmental Stage: L2; Genotype: unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: F45C12.2; EXPERIMENTAL FACTORS: Developmental Stage L2; Target gene F45C12.2; Strain OP212(official name : OP212 genotype : unc119(ed3);wgIs212(F45C12.2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : F45C12.2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The F45C12.2::EGFP fusion protein is expressed in the correct F45C12.2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the F45C12.2 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2013-02-04 | E-GEOD-44005 | biostudies-arrayexpress
Project description:In order to identify the regions occupied by transcription factors, we performed bio-ChIP followed by massive parallel sequencing (bioChIP-Seq) in mouse ES cells. A total of seven DNA transcription factors including Myc module (Myc, Max, E2F4, Tip60 and Dmap1) and Core module transcription factors (Nanog, Dax1; Kim et al., 2010) were identified. We show that the transcription factors can be classified into several classes according to their occupancies. Our data also show transcription factors in the same class co-occupy the same regulatory elements, share the common characteristics and act together. Identification of seven transcription factor binding sites in mES cells
2014-11-24 | E-GEOD-48666 | biostudies-arrayexpress
Project description:Mycobacterial HelD is a transcription factor that binds RNA polymerase (RNAP) and thereby rescues it from stalled transcription complexes. HelD also protects RNAP against the antibiotic rifampicin. HelD, however, must be released from the rescued RNAP to participate in the next round of the transcription cycle. The exact mechanism of this release is unknown. Here we show that HelD from Mycobacterium smegmatis can form a complex with RNAP, together with σA primary sigma factor, and RbpA, but not CarD, transcription factors. Using cryo-EM, we solved a series of RNAP-σA-RbpA-HelD structures with or without promoter DNA. These snapshots capture the involvement of HelD in transcription initiation, describes mechanistic aspects of HelD release, and its protective effect against rifampicin. Biochemical evidence supports these findings, defines the role of ATP binding/hydrolysis to/by HelD in the process, and functionally confirms the rifampicin-protective effect of HelD. Taken together, HelD assists an alternative pathway of transcription initiation.
2024-10-08 | PXD046632 | Pride
Project description:modENCODE_submission_3380 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP222(official name : OP222 genotype : unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119) outcross : 3 transgene : daf-12 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The DAF-12::EGFP fusion protein is expressed in the correct daf-12 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the DAF-12 transcription factor. made_by : Mihail Sarov ); Developmental Stage: L4; Genotype: unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: daf-12; EXPERIMENTAL FACTORS: Developmental Stage L4; Target gene daf-12; Strain OP222(official name : OP222 genotype : unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119) outcross : 3 transgene : daf-12 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The DAF-12::EGFP fusion protein is expressed in the correct daf-12 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the DAF-12 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2011-05-24 | E-GEOD-29479 | biostudies-arrayexpress
Project description:modENCODE_submission_3381 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP222(official name : OP222 genotype : unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119) outcross : 3 transgene : daf-12 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The DAF-12::EGFP fusion protein is expressed in the correct daf-12 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the DAF-12 transcription factor. made_by : Mihail Sarov ); Developmental Stage: L3; Genotype: unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: daf-12; EXPERIMENTAL FACTORS: Developmental Stage L3; Target gene daf-12; Strain OP222(official name : OP222 genotype : unc119(ed3);wgIs222(daf-12:TY1 EGFP FLAG;unc119) outcross : 3 transgene : daf-12 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The DAF-12::EGFP fusion protein is expressed in the correct daf-12 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the DAF-12 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2011-05-24 | E-GEOD-29480 | biostudies-arrayexpress
Project description:modENCODE_submission_3382 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP217(official name : OP217 genotype : unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : aly-2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The ALY-2::EGFP fusion protein is expressed in the correct aly-2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the ALY-2 transcription factor. made_by : Mihail Sarov ); Developmental Stage: L3; Genotype: unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: aly-2; EXPERIMENTAL FACTORS: Developmental Stage L3; Target gene aly-2; Strain OP217(official name : OP217 genotype : unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : aly-2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The ALY-2::EGFP fusion protein is expressed in the correct aly-2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the ALY-2 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2011-05-24 | E-GEOD-29481 | biostudies-arrayexpress
Project description:modENCODE_submission_3384 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP217(official name : OP217 genotype : unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : aly-2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The ALY-2::EGFP fusion protein is expressed in the correct aly-2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the ALY-2 transcription factor. made_by : Mihail Sarov ); Developmental Stage: fed L1; Genotype: unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: aly-2; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene aly-2; Strain OP217(official name : OP217 genotype : unc119(ed3);wgIs217(aly-2:TY1 EGFP FLAG;unc119) outcross : 3 transgene : aly-2 tags : Bombard tag : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The ALY-2::EGFP fusion protein is expressed in the correct aly-2 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the ALY-2 transcription factor. made_by : Mihail Sarov ); temp (temperature) 20 degree celsius
2011-05-24 | E-GEOD-29482 | biostudies-arrayexpress