Drosophila melanogaster
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1057956 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Individual males from Drosophila melanogaster females heterozygous for c(3)G loss of function mutation
| PRJNA565834 | ENA
Project description:Individual males from Drosophila melanogaster females homozygous for c(3)G loss of function mutation
| PRJNA565835 | ENA
Project description:The innate immune response of insects relies on several humoral and cellular mechanisms that require the activation of circulating proteases in the hemolymph to be functional. Here, we analyzed the gelatinase and caseinase activities of Drosophila larval hemolymph under normal and pathogenic conditions (bacterial lipopolysaccharides or endoparasitoid Leptopilina boulardi) using in gel zymography. Gelatinase activity was more intense than caseinase activity and qualitative and quantitative variations were observed between D. melanogaster strains and Drosophila species. Mass spectrometry identified a large number of serine proteases in gel bands equivalent to the major gelatinase and caseinase bands and of these, the most abundant and redundant were Tequila and members of the Jonah and Trypsin protease families. However, hemolymph from Tequila null mutant larvae showed no obvious changes in zymographic bands. Nor did we observe any significant changes in hemolymph gelatinases activity 24 h after injection of bacterial lipopolysaccharides or after oviposition by endoparasitoid wasps. These data confirmed that many serine proteases are present in Drosophila larval hemolymph but those with gelatinase and caseinase activity may not change drastically during the immune response.
2024-04-29 | PXD045527 | Pride
Project description:Efficient generation of continuous cell lines from Drosophila embryos by expression of oncogenic Ras
| PRJNA107465 | ENA
Project description:RNA-seq on dual-FACS sorted Drosophila Intestinal stem cell and Enteroblast, and effect of SPEN loss of function on gene expression
| PRJNA329039 | ENA
Project description:<p>Chronic sleep loss profoundly impacts metabolic health and shortens lifespan, but studies of the mechanisms involved have focused largely on acute sleep deprivation. To identify metabolic consequences of chronically reduced sleep, we conducted unbiased metabolomics on heads of three adult Drosophila short-sleeping mutants with very different mechanisms of sleep loss: fumin (fmn), redeye (rye), and sleepless (sss). Common features included elevated ornithine and polyamines, with lipid, acyl-carnitine, and TCA cycle changes suggesting mitochondrial dysfunction. Studies of excretion demonstrate inefficient nitrogen elimination in adult sleep mutants, likely contributing to their polyamine accumulation. Increasing levels of polyamines, particularly putrescine, promote sleep in control flies but poison sleep mutants. This parallels the broadly enhanced toxicity of high dietary nitrogen load from protein in chronically sleep-restricted Drosophila, including both sleep mutants and flies with hyper-activated wake-promoting neurons. Together, our results implicate nitrogen stress as a novel mechanism linking chronic sleep loss to adverse health outcomes-and perhaps for linking food and sleep homeostasis at the cellular level in healthy organisms.</p>
2023-03-18 | MTBLS3318 | MetaboLights
Project description:Nucleus is a highly structured organelle and contains many functional compartments. While the structural basis for this complex spatial organization of compartments is unknown, a major component of this organization is likely to be the non-chromatin scaffolding called nuclear matrix (NuMat). Experimental evidence over the past decades indicates that most of the nuclear functions are at least transiently associated with the NuMat although the components of NuMat itself are poorly known. Here, we report NuMat proteome analysis from Drosophila melanogaster embryos and discuss its links with nuclear architecture and functions. In the NuMat proteome, we find structural proteins, chaperones related, DNA/RNA binding, chromatin remodeling and transcription factors. This complexity of NuMat proteome is an indicator of its structural and functional significance. Comparison of the 2D profile of NuMat proteome from different developmental stages of Drosophila embryos shows that less than half of the NuMat proteome is constant and rest of the proteins are stage specific dynamic components. This NuMat dynamics suggests a possible functional link between NuMat and the embryonic development. Finally, we also show that a subset of NuMat proteins remain associated with the mitotic chromosomes implicating their role in mitosis and possibly the epigenetic cellular memory. NuMat proteome analysis provides tools and opens up ways to understand nuclear organization and function.
2011-05-05 | PRD000255 | Pride
Project description:Temporal and Spatial Transcriptional Profiles of Aging in Drosophila
| PRJNA100525 | ENA
Project description:The highly conserved Wnt signaling pathway drives intestinal homeostasis across species. Apc is a negative regulator of Wnt signaling. Loss of function mutations in Apc are found in 80-90% of human colorectal cancers. Importantly, Apc loss is widely known as the key driving event in the disease. We used microarray analysis of adult Drosophila midguts to study the molecular mechanisms regulated upon loss of Apc in the intestine.
2017-05-19 | GSE99071 | GEO