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Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food II

ABSTRACT: Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food II

PROVIDER: PRJNA613482 | ENA |

REPOSITORIES: ENA

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Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food

Project description:We used RNA-seq to determine transcriptional profiles of whole flies raised on either a glucose-enriched or unmodified holidic diet.

2020-03-20 | GSE147222 | GEO

Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food II

Project description:We used microarrays to examine transcriptional profiles of female flies raised on either a glucose-enriched (100 g/L) or unmodified holidic diet. We found several diet-dependent effects including increased growth pathway and immunity expression in flies raised on a glucose-enriched diet.

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Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food

Project description:Expression data from D. melanogaster raised on glucose-enriched or unmodified holidic food

| PRJNA613451 | ENA

Expression profile of the fat body from bigmax mutant and wildtype third instar Drosophila melanogaster larvae

Project description:To identify genes differentially expressed in the fatbody of Drosphila melanogaster bigmax mutants, a loss-of-function allele was generated by P-element mobilization. Mutant and wildtype first instar larvae were raised on two different sources of food, control and high-sugar media. When the animals reached the wandering third instar stage, animals were sacrificed and their fat bodies dissected. Total RNA was extracted, labeled fluorescently and hybridized competitively to Agilent's 4x44K Drosophila Gene Expression Microarrays. On each array, three different samples were analyzed: 1. wildtype animals raised on control food, 2. wildtype animals raised on high-sugar food and 3. bigmax mutant animals raised on high-sugar food.

2013-02-27 | E-MTAB-699 | biostudies-arrayexpress

CD4+ T cells depletion affects gene expression in hippocampus of mice raised in enriched environment

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2019-06-04 | GSE115507 | GEO

Glucose-dependent Insulinotropic polypeptide receptor-expressing cells in the hypothalamus regulate food intake

Project description:Ambiguity regarding the role of glucose-dependent insulinotropic polypeptide (GIP) in obesity arises from conflicting reports asserting that both GIP receptor (GIPR) agonism and antagonism are effective strategies for inhibiting weight gain. To enable identification and manipulation of Gipr-expressing (Gipr) cells we created GIPR-Cre knock-in mice. As GIPR-agonists have recently been reported to suppress food intake we aimed to identify central mediators of this effect. Gipr cells were identified in the arcuate, dorsomedial, and paraventricular nuclei of the hypothalamus, as confirmed by RNAscope in mouse and human. Single cell RNAseq identified clusters of hypothalamic Gipr cells exhibiting transcriptomic signatures for mural, glial and neuronal cells, the latter expressing somatostatin, but little proopiomelanocortin or agouti-related peptide. Activation of Gq-DREADDs in hypothalamic Gipr cells suppressed food intake in vivo, which was not obviously additive with concomitant GLP1R activation. These data identify hypothalamic GIPR as a target for the regulation of energy balance.

2019-07-24 | GSE134726 | GEO

Transcription profiling of Drosophila Roo lines grown on lead containing food to investigate lead toxicity

Project description:75 Diosophilia Roo lines, recominant inbred lines, were raised to adulthood either on conventional diet or diet supplemented with lead acetate. Whole flies were used for RNA extraction. RNA was run on Dros Genome 2 arrays. Each line also genotyped for 88 markers; Control food consisted of standard cornmeal, agar, sugar, yeast, and 250 microM NaAc (Ashburner 1989). Lead-contaminated food consisted of standard food plus 250 microM PbAc (lead exposure at this concentration has been shown to affect locomotion in adults (Hirsch et al. 2003)). Experiment Overall Design: 75 RI lines each line treated and untreated with lead acetate

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Genetic and genomic response to selection for food consumption in Drosophila melanogaster

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Decrypting the functional design of unmodified translation elongation factor P

Project description:Stalling of ribosomes due to consecutive proline motifs during polypeptide synthesis is a challenge faced by organisms across all kingdoms. To overcome this, bacteria employ translation elongation factor P (EF-P), while archaea and eukaryotes rely on a/eIF5A. Typically, these elongation factors become active only after undergoing post-translational modifications (PTMs) such as ß-lysinylation, (deoxy-)hypusinylation, rhamnosylation, or 5-aminopentanolyation. An exception to this rule is found in EF-P members of the PGKGP-subfamily, which remain unmodified. However, the mechanism behind the ability of certain bacteria to bypass metabolically and energetically costly PTMs, thus retaining active EF-P, remains unclear. In this study, we investigated the design principles governing the full functionality of unmodified EF-Ps in Escherichia coli. We first screened for naturally unmodified EF-Ps that are active in an E. coli reporter strain. We identified EF-P from Rhodomicrobium vannielii capable of rescuing the growth deficiencies and changes in the proteome of E. coli ΔepmA mutant lacking the gene for the modifying EF-P-(R)-ß-lysine ligase. We then identified specific amino acids in domain I of the unmodified EF-P variant that affected its activity. Ultimately, we transferred these functional properties to other marginally active members of the PGKGP EF-P subfamily, resulting in fully functional unmodified variants in E. coli. These results have not only implications for the improved heterologous expression of polyproline-containing proteins in E. coli but offer applications for other bacterial hosts. Understanding the mechanisms that underlie the functionality of unmodified EF-P provides insights into cellular adaptations to optimize protein synthesis.

2024-04-08 | PXD044929 | Pride

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