Independent Regulation of Metabolism but Coordinated Control of Tissue Development by Epidermal Specific Transcription Factors in Caenorhabditis elegans
Ontology highlight
ABSTRACT:
ORGANISM(S): Caenorhabditis elegans
SUBMITTER: Jiaofang Shao
PROVIDER: E-GEOD-44710 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Publications
Collaborative regulation of development but independent control of metabolism by two epidermis-specific transcription factors in Caenorhabditis elegans.
Shao Jiaofang J He Kan K Wang Hao H Ho Wing Sze WS Ren Xiaoliang X An Xiaomeng X Wong Ming Kin MK Yan Bin B Xie Dongying D Stamatoyannopoulos John J Zhao Zhongying Z
The Journal of biological chemistry 20131006 46
Cell fate specification is typically initiated by a master regulator, which is relayed by tissue-specific regulatory proteins (usually transcription factors) for further enforcement of cell identities, but how the factors are coordinated among each other to "finish up" the specification remains poorly understood. Caenorhabditis elegans epidermis specification is initiated by a master regulator, ELT-1, that activates its targets, NHR-25 and ELT-3, two epidermis-specific transcription factors that ...[more]
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Project description:We identified target genes for NHR-25 by ChIP-seq at L1 stage of C. elegans. Transcription factor genes were tagged with GFP and their expression examined at L1 stage. Since there are no direct target genes known for NHR-25 that can be used for assessment of enrichment efficiency by quantitative PCR (qPCR), we chose to repeat ChIP-seq experiment of another GFP tagged transcription factor, PHA-4 for which the ChIP-seq was performed during a pilot experiment of modENCODE project using the same transgenic strain and antibody (a gift from Tony Hyman lab).
2013-12-03 | GSE44710 | GEO
Project description:modENCODE_submission_3594 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: OP353(official name : OP353 genotype : unc119(ed3);wgIs353(nhr-77::TY1 EGFP FLAG;unc119) outcross : 3 transgene : nhr-77 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 NHR-77::EGFP fusion protein is expressed in the correct nhr-77 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-77 transcription factor. made_by : R Waterston ); Developmental Stage: fed L1; Genotype: unc119(ed3);wgIs353(nhr-77::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; Transgene: nhr-77; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene nhr-77; Strain OP353(official name : OP353 genotype : unc119(ed3);wgIs353(nhr-77::TY1 EGFP FLAG;unc119) outcross : 3 transgene : nhr-77 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 NHR-77::EGFP fusion protein is expressed in the correct nhr-77 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-77 transcription factor. made_by : R Waterston ); temp (temperature) 20 degree celsius
2013-02-04 | E-GEOD-44012 | biostudies-arrayexpress
Project description:modENCODE_submission_3852 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: OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); Developmental Stage: L1 26dC; Genotype: unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L1 26dC; Target gene nhr-237; Strain OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48720 | biostudies-arrayexpress
Project description:modENCODE_submission_4023 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: OP305(official name : OP305 genotype : unc119(ed3);wgIs305(nhr-11::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-11::EGFP fusion protein is expressed in the correct nhr-11 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-11 transcription factor. made_by : R Waterston ); Developmental Stage: L1 26dC; Genotype: unc119(ed3);wgIs305(nhr-11::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L1 26dC; Target gene nhr-11; Strain OP305(official name : OP305 genotype : unc119(ed3);wgIs305(nhr-11::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-11::EGFP fusion protein is expressed in the correct nhr-11 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-11 transcription factor. made_by : R Waterston ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48734 | biostudies-arrayexpress
Project description:modENCODE_submission_4024 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: OP317(official name : OP317 genotype : unc119(ed3);wgIs317(nhr-28::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-28::EGFP fusion protein is expressed in the correct nhr-28 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-28 transcription factor. made_by : R Waterston ); Developmental Stage: L1 26dC; Genotype: unc119(ed3);wgIs317(nhr-28::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L1 26dC; Target gene nhr-28; Strain OP317(official name : OP317 genotype : unc119(ed3);wgIs317(nhr-28::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : 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 NHR-28::EGFP fusion protein is expressed in the correct nhr-28 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-28 transcription factor. made_by : R Waterston ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48735 | biostudies-arrayexpress
Project description:NHR-23, a conserved member of the nuclear receptor family of transcription factors, is required for normal development in C. elegans where it plays a critical role in growth and molting. In a search for NHR-23 dependent genes, we performed whole genome comparative expression microarrays on both control and nhr-23 inhibited synchronized larvae. Genes that decreased in response to nhr-23 RNAi included several collagen genes. Unexpectedly, several hedgehog-related genes were also down-regulated after nhr-23 RNAi. A homozygous nhr-23 deletion allele was used to confirm the RNAi knockdown phenotypes and the changes in gene expression. Our results indicate that NHR-23 is a critical coregulator of functionally linked genes involved in growth and molting and reveal evolutionary parallels among the ecdysozoa. Synchronized populations of L1 larvae were plated with two sets of HT115 bacteria, one that had been transformed with the RNAi vector only (L4440 plasmid) and another that had been transformed with a vector targeting nhr-23 (clone 5174) [Proc Natl Acad Sci USA 98 (2001) 7360-7365]. Worms were kept on 2% agarose plates for 21 hr at 20C, collected, and approximately 200ml of worms resuspended in PBS were used in each individual experiment. Total RNA was isolated from frozen pellets using a Mixer-Mill (Miller-Mill 300) following an RNeasy Mini Kit (Qiagen, Germantown, MD) according to manufacturer protocol. Aliquots of cultures used for RNA isolation were kept on nhr-23 RNAi plates to confirm the knockdown phenotypic changes occurred during subsequent molts.
2012-08-29 | E-GEOD-32031 | biostudies-arrayexpress
Project description:The patterning of Drosophila retina occurs both very fast and with high precision. This process is driven by the dynamic changes in signalling activity of the conserved Hedgehog (Hh) pathway, which coordinates cell fate determination, cell cycle and tissue morphogenesis. Here we show that during Drosophila retinogenesis, the retinal determination gene dachshund (dac) is not only a target of the Hh signaling pathway, but is also a modulator of its activity. Using developmental genetics techniques, we demonstrate that dac enhances Hh signaling by promoting the accumulation of the Gli transcription factor Cubitus interruptus (Ci) parallel to or downstream of fused. In the absence of dac, all Hh-mediated events associated to the morphogenetic furrow are delayed. One of the consequences is that, posterior to the furrow, dac- cells cannot activate a Roadkill-Cullin3 negative feedback loop that attenuates Hh signaling and which is necessary for retinal cells to continue normal differentiation. Therefore, dac is part of an essential positive feedback loop in the Hh pathway, guaranteeing the speed and the accuracy of Drosophila retinogenesis. ChIP-seq against Dachshund vs input ChIP-seq. Eye-antennal imaginal discs are dissected from Grh-GFP (Bloomington stock 42269) 3rd instar larvae and fixed with formaldehyde. Chromatin is prepared and sonicated until fragments reach an average size of 500 bp. Chromatin is immunoprecipitated with an anti-GFP Ab (ab290, Abcam) and the immunocomplexes are recovered with protein A/G magnetic beads (Millipore).
2016-07-01 | E-GEOD-82151 | biostudies-arrayexpress
Project description:modENCODE_submission_3835 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: OP33(official name : OP33 genotype : unc119(ed3);wgIs33(nhr-25::TY1 EGFP FLAG;unc119) outcross : 0 mutagen : None tags : 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 bombardment transformation of an unc-119(ed3) strain. made_by : Bob Waterston's lab from UW ); Developmental Stage: L2; Genotype: unc119(ed3);wgIs33(nhr-25::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L2; Target gene nhr-25; Strain OP33(official name : OP33 genotype : unc119(ed3);wgIs33(nhr-25::TY1 EGFP FLAG;unc119) outcross : 0 mutagen : None tags : 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 bombardment transformation of an unc-119(ed3) strain. made_by : Bob Waterston's lab from UW ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48707 | biostudies-arrayexpress
Project description:ChIP-seq of mouse embryonic fibroblast-adipose like cell line 3T3-L1 to identify binding sites of NCoR1 and SMRT following induction of differentiation, and RNA Pol-II after SMRT knock down
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