RNA expression in fly thoraxes of 4 WT, 4 dCanA1 and 4 dCanA-14F calcineurin mutant fly lines
Ontology highlight
ABSTRACT:
ORGANISM(S): Drosophila melanogaster
SUBMITTER: Bruce Aronow
PROVIDER: E-GEOD-71701 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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Project description:Canonical protein phosphatase 3 (Ppp3) / calcineurin signaling is central to numerous physiological processes. Here we provide evidence that calcineurin plays a pivotal role in controlling systemic energy and body weight homeostasis. Knockdown of calcineurin in Drosophila melanogaster led to a decrease in body weight, and energy stores, and increased energy expenditure. D. melanogaster piggyBac transposon insertion mutants (Thibault et al., 2004) (PBac{WH}CanA1[f01787] (Calcineurin A1) and PBac{WH}CanA-14F[f02374] (CanA at 14-F)) and the isogenic wildtype w1118 strain (BL-6326) were ordered from Exelixis Drosophila Stock Collection at Harvard Medical School.
2015-08-04 | GSE71701 | GEO
Project description:modENCODE_submission_6075 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of the major histone modifications across the Drosophila melanogaster genome. The modifications under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages. 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-chip. BIOLOGICAL SOURCE: Strain: HP1c mutant(official name : HP1c[f04929] genotype : w[1118]; PBac{w[+mC]=WH}HP1c[f04929] outcross : unknown transgene : PBac insertion tags : Transposon description : Insertion of PBac transgene disrupts Hp1c gene (Gene disruption project). Developmental Stage: 3rd Instar Larvae; Genotype: w[1118]; PBac{w[+mC]=WH}HP1c[f04929]; Transgene: PBac insertion; NUMBER OF REPLICATES: 4; EXPERIMENTAL FACTORS: Strain HP1c mutant(official name : HP1c[f04929] genotype : w[1118]; PBac{w[+mC]=WH}HP1c[f04929] outcross : unknown transgene : PBac insertion tags : Transposon description : Insertion of PBac transgene disrupts Hp1c gene (Gene disruption project). Antibody HP1 wa191 (target is HP1a); Developmental Stage 3rd Instar Larvae
2013-03-06 | E-GEOD-44897 | biostudies-arrayexpress
Project description:modENCODE_submission_4184 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of 125 chromosomal proteins across the Drosophila melanogaster genome. The proteins under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages 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-chip. BIOLOGICAL SOURCE: Strain: HP1c mutant(official name : HP1c[f04929] genotype : w[1118]; PBac{w[+mC]=WH}HP1c[f04929] outcross : unknown transgene : PBac insertion tags : Transposon description : Insertion of PBac transgene disrupts Hp1c gene (Gene disruption project). Developmental Stage: 3rd Instar Larvae; Genotype: w[1118]; PBac{w[+mC]=WH}HP1c[f04929]; Transgene: PBac insertion; NUMBER OF REPLICATES: 4; EXPERIMENTAL FACTORS: Strain HP1c mutant(official name : HP1c[f04929] genotype : w[1118]; PBac{w[+mC]=WH}HP1c[f04929] outcross : unknown transgene : PBac insertion tags : Transposon description : Insertion of PBac transgene disrupts Hp1c gene (Gene disruption project). Antibody HP1b Q4114 (target is HP1b); Developmental Stage 3rd Instar Larvae
2013-03-13 | E-GEOD-45058 | biostudies-arrayexpress
Project description:modENCODE_submission_3711 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of 125 chromosomal proteins across the Drosophila melanogaster genome. The proteins under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages 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-chip. BIOLOGICAL SOURCE: Strain: HP1c mutant(official name : HP1c[f04929] genotype : w[1118]; PBac{w[+mC]=WH}HP1c[f04929] outcross : unknown transgene : PBac insertion tags : Transposon description : Insertion of PBac transgene disrupts Hp1c gene (Gene disruption project).
2013-02-22 | E-GEOD-44479 | biostudies-arrayexpress
Project description:In Drosophila, two chromosome-wide compensatory systems have been characterized; the dosage compensation system acting on the male X-chromosome and the chromosome specific regulation of genes located on the heterochromatic 4th chromosome. Dosage compensation in Drosophila is accomplished by hypertranscription of the single male X-chromosome mediated by the MSL-complex. The mechanism for this compensation is suggested to be an MSL-complex mediated enhanced transcriptional elongation while the mechanism for the compensation mediated by Painting of fourth (POF) on the 4th chromosome has remained elusive. Here we show that POF binds to nascent RNA and this binding is associated with an increase in amount of chromosome 4 transcripts. Furthermore, genes located on the 4th chromosome are enriched in binding of the nucleoplasmic nucleporin component NUP98 and this enrichment correlates to increased POF binding. We also show that genes located in heterochromatic regions have a shorter transition time from site of transcription and to the nuclear envelope. Our current work broadens the understanding about how genes in heterochromatic regions can overcome the repressive influence of their hostile environment. Pof mutant vs. wild type, 3 replicates
2012-05-30 | E-GEOD-28513 | biostudies-arrayexpress
Project description:The starch, acting as the major energy-producing component of the daily diet, is the main carbohydrate in mammal nutrition. However, the nutritional value of starch can vary widely depending upon its source and site of digestion. The distinct physiological responses were previously observed both in human and other mammals, but still little is known about the underlying mechanisms regarding the metabolic shifts due to the intake of various dietary starches. Here, we assessed the overall metabolic changes in weaned pigs induced by different dietary starch sources at the transcriptome level. Sixteen weaned pigs (DurocÃLandraceÃYorkshire) were selected and randomly allotted to diets containing either wheat (WH) or cassava (CA) starch as the energy source (n=8). We measured serum metabolites and hormones and generated transcriptional profiles of liver. 648 genes in liver were differentially expressed in response to dietary starch sources. Pathway analysis indicated that dietary starch sources altered both carbohydrate and lipid metabolism in liver. In contrast, CA may be more healthful as dietary energy source than WH by down-regulating lipogenesis and steroidogenesis in liver. Sixteen weaned pigs (DurocÃLandraceÃYorkshire) with an average initial body weight of 7.37±0.25 kg were selected and randomly allotted to two dietary treatments (either wheat or cassava starch as the energy source) for 21 d. At the end of the trial, the liver tissue were collected for transcriptome analysis using Agilent porcine microarrays.
2010-09-09 | E-GEOD-20721 | biostudies-arrayexpress
Project description:The reversible posttranslational O-GlcNAc modification of serine or threonine residues of intracellular proteins is involved in many cellular events from signaling cascades to epigenetic and transcriptional regulation. O-GlcNAcylation is a conserved nutrient-dependent process involving two enzymes, O-GlcNAc Transferase (OGT) adding O-GlcNAc while O-GlcNAcase (OGA) removing it in a manner that’s protein and context dependent. O-GlcNAcylation is essential for epigenetic regulation of gene expression through its action on Polycomb and Trithorax and Compass complexes. However, the important role of O-GlcNAc on adult life and healthspan have been largely unexplored, mainly due the lack of available model systems. Cataloging the O-GlcNAc proteome has proven useful in understanding the biology of this modification in vivo. In this study, we leveraged a recently developed oga knockout fly mutant to identify the O-GlcNAcylated proteins in adult Drosophila melanogaster. The adult O-GlcNAc proteome revealed many proteins related to cell and organismal growth, development, differentiation, and epigenetics. We identified many O-GlcNAcylated proteins that serve a role in increased growth and decreased longevity, including HCF, SIN3A, LOLA, KISMET, ATX2, SHOT, and FOXO.
2021-04-26 | PXD025344 | Pride
Project description:nbr/CG9247 gene regulates 3'end heterogeneity of a subset of miRNAs. It is not clear how broad this effect is on small RNA population. To address this, we compared small RNA population in wild-type and tmr[f02257] mutants. This approach identified more miRNAs whose 3'end heterogeneity was affected in nbr[f02257] mutants. 2-3 day old control (w homogeneous strain Bloomington stock center 5905) and nbr[f02257] null mutant flies were collected. nbr[f02257] line was in the homogenous (Bloomington stock center stock 5905) background through a minimum of 5 backcrosses. Total RNA from whole flies was extracted using TRIzol reagent (Invitrogen). 40ug of total RNA from each genotype was used for small RNA library preparation with Small RNA Sample Prep kit (v1.5) (Illumina).
2011-11-01 | E-GEOD-32684 | biostudies-arrayexpress
Project description:The WWOX gene spans chromosomal fragile site FRA16D, a region of DNA instability in cancer. While WWOX has some tumor suppressor characteristics, its normal role and functional contribution to cancer are unclear. Drosophila homozygous Wwox mutants are viable with no discernable phenotype. Drosophila Wwox interactors, identified by proteomics and micro-array analyses, mainly have roles in aerobic metabolism. Functional relationships between Wwox and either isocitrate dehydrogenase (IDH) or superoxide dismutase 1 (Sod1) were confirmed by phenotype modification, including Sod1 âcrinkled-wingâ, indicative of oxidative stress response. Endogenous reactive oxygen species levels reflect Wwox levels in Drosophila. WWOX mRNA levels in Drosophila and human cells correlate with IDH and Sod1 levels. Wwox therefore contributes to pathways involving glucose metabolism and oxidative stress response. Drosophila embryos were harvested between 4-8hrs and total RNA isolated to look for gene-expression differences induced by the presence of one of two altered Wwox alleles relative to wild-type. The two alleles were Wwox (a null mutation generated by homologous recombination) and Wwoxf04545 carrying a pBac insertion in exon 2 (OâKeefe et al., 2005, 2007). Embryo pools were isolated in triplicate, providing 3 biological replicates.
2010-12-07 | E-GEOD-22689 | biostudies-arrayexpress
Project description:Developmental gene expression results from the orchestrated interplay between genetic and epigenetic mechanisms. Here, we describe upSET, a transcriptional regulator encoding a SET domaincontaining protein recruited to active and inducible genes in Drosophila. However, unlike other Drosophila SET proteins associated with gene transcription, UpSET is part of an Rpd3/Sin3-containing complex that restricts chromatin accessibility and histone acetylation to promoter regions. In the absence of UpSET, active chromatin marks and chromatin accessibility increase and spread to genic and flanking regions due to destabilization of the histone deacetylase complex. Consistent with this, transcriptional noise increases, as manifest by activation of repetitive elements and off-target genes. Interestingly, upSET mutant flies are female sterile due to upregulation of key components of Notch signaling during oogenesis. Thus UpSET defines a class of metazoan transcriptional regulators required to fine tune transcription by preventing the spread of active chromatin. A six chip study using total RNA recovered from three separate dissections wild-type ovaries and three separate dissections of epic mutant ovaries. Each chip measures the expression level of 15,473 genes from Drosophila melanogaster with four 60-mer probes per target gene. Investigation of whole genome gene expression level changes in epic(e00365) mutants, compared to the wild-type strain (OregonG). The mutation was generated by the insertion of the PBac{WH}CG9007e000365 transposon. The mutants analyzed in this study are further described in Rincon-Arano H., et al 2012. in Press.
2012-12-07 | E-GEOD-34717 | biostudies-arrayexpress