Lin-35(n745) mutants vs. lin-35(n745), mes-4(RNAi) (below referred to as reference sample and test sample respectively)
Ontology highlight
ABSTRACT:
ORGANISM(S): Caenorhabditis elegans
PROVIDER: GSE26825 | GEO | 2011/01/25
SECONDARY ACCESSION(S): PRJNA136029
REPOSITORIES: GEO
Similar Datasets
Project description:Transcriptional profiling of C. elegans first larval stage whole animals comparing lin-35(n745) mutants and lin-35(n745) treated with mes-4(RNAi) at 26 degrees. One-condition experiment, mutant (lin-35) vs. mutant plus RNAi (lin-35, mes-4RNAi). Biological replicates 4 mutant, 4 mutant plus RNAi harvested indepedently. One lin-35 replicate and one lin-35, mes-4(RNAi) replicate per array.
2011-01-25 | E-GEOD-26825 | biostudies-arrayexpress
Project description:Transcriptional profiling of C. elegans first larval stage whole animals comparing lin-35(n745) mutants and N2 (wild type) at 26 degrees. One-condition experiment, mutant (lin-35) vs. WT. Biological replicates 4 mutant, 4 wildtype harvested indepedently. One lin-35 replicate and one WT replicate per array.
2011-01-25 | E-GEOD-26824 | biostudies-arrayexpress
Project description:Transcriptional profiling of C. elegans first larval stage whole animals comparing lin-35(n745) mutants and N2 (wild type) at 26 degrees.
2011-01-25 | GSE26824 | GEO
Project description:Here we uncover antagonistic regulation of transcript levels in the germline of Caenorhabditis elegans hermaphrodites. The histone methyltransferase MES-4 marks genes expressed in the germline with methylated Lys36 on histone H3 (H3K36me) and promotes their transcription; MES-4 also represses genes normally expressed in somatic cells and genes on the X chromosomes. The DRM complex, which includes E2F/DP and Retinoblastoma homologs, affects germline gene expression and prevents excessive repression of X-chromosome genes. Using genome-scale analyses of germline tissue, we show that common germline-expressed genes are activated by MES-4 and repressed by DRM, and that MES-4 and DRM co-bind many germline-expressed genes. Reciprocally, MES-4 represses and DRM activates a set of autosomal soma-expressed genes and overall X-chromosome gene expression. Mutations in mes-4 or the DRM subunit lin-54 oppositely skew target transcript levels and cause sterility; a double mutant restores near wild-type transcript levels and germ cell development. Together, 'yin-yang' regulation by MES-4 and DRM ensures transcript levels appropriate for germ cell function, elicits robust but not excessive dampening of X-chromosome-wide transcription, and may poise genes for future expression changes. Our study reveals that conserved transcriptional regulators implicated in development and cancer counteract each other to fine-tune transcript dosage. We compared germline gene expression profile of wild-type N2 C. elegans, lin-54(n3423) M+Z- mutant, mes-4(ok2326) M+Z- mutant, and lin-54(n3423);mes-4(ok2326) M+Z-mutant grown at 20C. 50~70 Germlines were dissected from young adults (24hours after L4 stage), and region from the tip until late pachytene stage of meiosis were collected. Three biological replicates for each strain were performed.
2013-11-05 | E-GEOD-52064 | biostudies-arrayexpress
Project description:LIN-35 is the single C. elegans ortholog of the mammalian pocket protein family members, pRb, p107, and p130. To gain insight into the roles of pocket proteins during development, a microarray analysis was performed with lin-35 mutants. Stage-specific regulation patterns were revealed, indicating that LIN-35 plays diverse roles at distinct developmental stages. LIN-35 was found to repress the expression of many genes involved in cell proliferation in larvae, an activity that is carried out in conjunction with E2F. In addition, LIN-35 was found to regulate neuronal genes during embryogenesis and targets of the intestinal-specific GATA transcription factor, ELT-2, at multiple developmental stages. Additional findings suggest that LIN-35 functions in cell cycle regulation in embryos in a manner that is independent of E2F. A comparison of LIN-35-regulated genes with known fly and mammalian pocket-protein targets revealed a high degree of overlap, indicating strong conservation of pocket protein functions in diverse phyla. Based on microarray results and our refinement of the C. elegans E2F consensus sequence, we were able to generate a comprehensive list of putative E2F-regulated genes in C. elegans. These results implicate a large number of genes previously unconnected to cell cycle control as having potential roles in this process. Keywords: time course
2007-04-27 | GSE6547 | GEO
Project description:LIN-35 is the single C. elegans ortholog of the mammalian pocket protein family members, pRb, p107, and p130. To gain insight into the roles of pocket proteins during development, a microarray analysis was performed with lin-35 mutants. Stage-specific regulation patterns were revealed, indicating that LIN-35 plays diverse roles at distinct developmental stages. LIN-35 was found to repress the expression of many genes involved in cell proliferation in larvae, an activity that is carried out in conjunction with E2F. In addition, LIN-35 was found to regulate neuronal genes during embryogenesis and targets of the intestinal-specific GATA transcription factor, ELT-2, at multiple developmental stages. Additional findings suggest that LIN-35 functions in cell cycle regulation in embryos in a manner that is independent of E2F. A comparison of LIN-35-regulated genes with known fly and mammalian pocket-protein targets revealed a high degree of overlap, indicating strong conservation of pocket protein functions in diverse phyla. Based on microarray results and our refinement of the C. elegans E2F consensus sequence, we were able to generate a comprehensive list of putative E2F-regulated genes in C. elegans. These results implicate a large number of genes previously unconnected to cell cycle control as having potential roles in this process. Experiment Overall Design: We compared transcriptom profiles of lin-35 mutants and control N2 worms at 3 developmental stages (embryonic, L1 and L4). Experiment Overall Design: Each comparison was done in triplicate on independently grown and isolated animals.
2008-06-14 | E-GEOD-6547 | biostudies-arrayexpress
Project description:Here we uncover antagonistic regulation of transcript levels in the germline of Caenorhabditis elegans hermaphrodites. The histone methyltransferase MES-4 marks genes expressed in the germline with methylated Lys36 on histone H3 (H3K36me) and promotes their transcription; MES-4 also represses genes normally expressed in somatic cells and genes on the X chromosomes. The DRM complex, which includes E2F/DP and Retinoblastoma homologs, affects germline gene expression and prevents excessive repression of X-chromosome genes. Using genome-scale analyses of germline tissue, we show that common germline-expressed genes are activated by MES-4 and repressed by DRM, and that MES-4 and DRM co-bind many germline-expressed genes. Reciprocally, MES-4 represses and DRM activates a set of autosomal soma-expressed genes and overall X-chromosome gene expression. Mutations in mes-4 or the DRM subunit lin-54 oppositely skew target transcript levels and cause sterility; a double mutant restores near wild-type transcript levels and germ cell development. Together, “yin-yang” regulation by MES-4 and DRM ensures transcript levels appropriate for germ cell function, elicits robust but not excessive dampening of X-chromosome-wide transcription, and may poise genes for future expression changes. Our study reveals that conserved transcriptional regulators implicated in development and cancer counteract each other to fine-tune transcript dosage.
2013-11-05 | GSE52064 | GEO
Project description:modENCODE_submission_3213 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: YL409(official name : YL409 genotype : unc-119(ed3) III; vrIs60 [pLIN-35::LIN-35:GFP:FLAG::DPL-1 3'-UTR genotype : unc-119 (+)]) outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by its own lin-35 promoter. made_by : Michelle Kudron (Valerie Reinke's lab) ); Developmental Stage: fed L1; Genotype: unc-119(ed3) III; vrIs60 [pLIN-35::LIN-35:GFP:FLAG::DPL-1 3'-UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene lin-35; Strain YL409(official name : YL409 genotype : unc-119(ed3) III; vrIs60 [pLIN-35::LIN-35:GFP:FLAG::DPL-1 3'-UTR genotype : unc-119 (+)]) outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by its own lin-35 promoter. made_by : Michelle Kudron (Valerie Reinke's lab) ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48697 | biostudies-arrayexpress
Project description:modENCODE_submission_3602 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: YL402(official name : YL402 genotype : unc-119(ed3) III; vrIs56[pPIE-1::LIN-35::GFP FLAG: LIN-35 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by the pie-1 promoter. made_by : Michelle Kudron in Reinke lab ); Developmental Stage: Young adult; Genotype: unc-119(ed3) III; vrIs56[pPIE-1::LIN-35::GFP FLAG: LIN-35 3'-UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage Young adult; Target gene lin-35; Strain YL402(official name : YL402 genotype : unc-119(ed3) III; vrIs56[pPIE-1::LIN-35::GFP FLAG: LIN-35 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by the pie-1 promoter. made_by : Michelle Kudron in Reinke lab ); temp (temperature) 20 degree celsius
2013-02-04 | E-GEOD-44015 | biostudies-arrayexpress
Project description:modENCODE_submission_3603 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: YL398(official name : YL398 genotype : unc-119(ed3) III; vrIs55[pGES-1::LIN-35::GFP FLAG: LIN-35 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by the ges-1 promoter and is expressed in the intestine. made_by : Michelle Kudron in Reinke lab ); Developmental Stage: fed L1; Genotype: unc-119(ed3) III; vrIs55[pGES-1::LIN-35::GFP FLAG: LIN-35 3'-UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene lin-35; Strain YL398(official name : YL398 genotype : unc-119(ed3) III; vrIs55[pGES-1::LIN-35::GFP FLAG: LIN-35 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The LIN-35::GFP fusion protein is driven by the ges-1 promoter and is expressed in the intestine. made_by : Michelle Kudron in Reinke lab ); temp (temperature) 20 degree celsius
2013-02-04 | E-GEOD-44016 | biostudies-arrayexpress