Similar Datasets
Project description:Iron (Fe) and copper (Cu) are essential metal micronutrients that are necessary for many redox reactions. The uptake of these metals is tightly regulated in plants. Some redox processes can alternatively use Fe-containing proteins or Cu-containing proteins, depending on nutritional status. Copper deficiency can rescue a Cucumis melo Fe uptake deficient mutant, and Fe deficiency can result in increased accumulation of Cu. However, the system responsible for Fe-deficiency-regulated Cu-uptake is unknown. To understand the genes and gene networks associated with Fe-deficiency regulated Cu uptake and Fe-Cu cross-talk, we conducted transcriptomic profiling of roots and rosettes of spl7 (a Cu uptake deficient mutant in arabidopsis) and Col-0 (WT) grown under Fe, Cu and simultaneous Fe and Cu deficiency conditions.
2018-03-01 | GSE104916 | GEO
Project description:Purpose: RNAseq analysis was carried out to investigate the alterd genes by chemogenetic activation of endogenous oxytocin in the superficial layer (laminae I-II) and deep layer (laminae III-VI) of the dorsal horn. Methods: At 120 min after the s.c. administration of Saline or CNO (1 mg/kg) (n=3, each), adult male oxytocin-hM3Dq-mCherry transgenic rats were decapitated immediately without being anesthetized. Spinal cords specimens including laminae I-II and III-VI were collected separately. Results: 254 genes in the laminae I-II, and 191 genes in the laminae III-VI of the dorsal horn were significantly altered after chemogenetic activation of endogenous oxytocin.
2022-09-07 | GSE210528 | GEO
Project description:High-throughput sequencing of small RNAs from Xenopus tropicalis (adult liver, adult skin, oocytes stage I, II, III, IV, V, VI). total RNA, ~18-42 nt RNAs isolated using PAGE, ligation to adapters requires 5' monophosphate and 3' OH Illumina/Solexa sequencing of adult liver, adult skin, oocytes stage I, II, III, IV, V, VI
2009-07-09 | E-GEOD-14952 | biostudies-arrayexpress
Project description:To determine the effects of glucose-like oxidase and GSH-consumed nanoenzymes on regulatory genes and molecular pathways of mouse triple negative breast cancer cells (4T1 cells), we studied the RNA sequences of 4T1 cells treated with medium (control), Cu-TCPP (Fe)-PEG(Cu-TCPP) and Au/Cu-TCPP (Fe)-PEG(Au-TCPP).
2022-01-17 | GSE193686 | GEO
Project description:To address the question of how photosynthetic bacterium Rhodopseudomonas palustris differentially regulates gene expression of three nitrogenase isozymes (Mo, V, and Fe nitrogenases), we constructed Mo strain (Mo nitrogenase only strain), V strain (V nitrogenase only strain), and Fe strain (Fe nitrogenase only strain), and analyzed the whole genome transcriptome profiles of each mutant and wild-type cells grown under nitrogen-fixing conditions. Keywords: Genetic modification
2005-11-10 | GSE3030 | GEO
Project description:Given that transition metals are essential cofactors in central biological processes, misallocation of the wrong metal ion to a metalloprotein can have resounding and often detrimental effects on diverse aspects of cellular physiology. Therefore, in an attempt to characterize unique and shared responses to chemically similar metals we have reconstructed physiological behaviors of Halobacterium NRC-1, an archaeal halophile, in sub-lethal levels of Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II). Over 20% of all genes responded transiently within minutes of exposure to Fe(II), perhaps reflecting immediate large scale physiological adjustments to maintain homeostasis. At steady state, each transition metal induced growth arrest, attempts to minimize oxidative stress, toxic ion scavenging, increased protein turnover and DNA repair, and modulation of active ion transport. While several of these constitute generalized stress responses, up regulation of active efflux of Co(II), Ni(II), Cu(II), and Zn(II), down regulation of Mn(II) uptake and up regulation of Fe(II) chelation, confer resistance to the respective metals. We have synthesized all these discoveries into a unified systems level model to provide an integrated perspective of responses to six transition metals with emphasis on experimentally verified regulatory mechanisms. Finally, through comparisons across global transcriptional responses to different metals we provide insights into putative in vivo metal selectivity of metalloregulatory proteins and demonstrate that a systems approach can help rapidly unravel novel metabolic potential and regulatory programs of poorly studied organisms. Keywords: time series
2006-05-31 | GSE4894 | GEO
Project description:High-throughput sequencing of small RNAs from Xenopus tropicalis (adult liver, adult skin, oocytes stage I, II, III, IV, V, VI). total RNA, ~18-42 nt RNAs isolated using PAGE, ligation to adapters requires 5' monophosphate and 3' OH
2009-07-10 | GSE14952 | GEO
Project description:To determine whether P. aeruginosa strain PA14 exhibits a specific transcriptional response to extracellular Fe(II), a microarray experiment was performed using Affymetrix GeneChips. The transcriptional response to Fe(II) or Fe(III) shock was measured and compared to a no-Fe control.
2012-02-29 | E-MEXP-3459 | biostudies-arrayexpress
Project description:Drought and salinity reduce plant growth and grain yield in wheat. To explain the role of Cu and Fe NPs in the improvement of growth and yield of wheat varieties, gel-free proteomic technique was used. Spike length, number of grains per spike, and 100 grain weight were increased at 25 ppm Cu and Fe NPs in high yielding galaxy-13, drought tolerant Pakistan-13, and salinity tolerant NARC-11. A total of 86, 131, and 30 proteins were significantly changed in abundance under Cu and Fe NPs exposure. The number of proteins related to stress, proteins, and glycolysis were mainly changed by Cu and Fe NPs exposure. By Cu NPs, in galaxy-13 starch degradation and glycolysis pathway were increased, while decreased in Pakistan-13 and NARC-11. Furthermore, by Fe NPs, only in galaxy-13 tricarboxylic acid cycle was increased while did not change glycolysis and starch degradation. Uptake of Cu NPs increased at 25 ppm in galaxy-13, Pakistan-13 and NARC-11 while Fe NPs uptake increased only at 35 and 40 ppm in NARC-11.
2016-10-12 | PXD003671 | Pride
Project description:Given that transition metals are essential cofactors in central biological processes, misallocation of the wrong metal ion to a metalloprotein can have resounding and often detrimental effects on diverse aspects of cellular physiology. Therefore, in an attempt to characterize unique and shared responses to chemically similar metals we have reconstructed physiological behaviors of Halobacterium NRC-1, an archaeal halophile, in sub-lethal levels of Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II). Over 20% of all genes responded transiently within minutes of exposure to Fe(II), perhaps reflecting immediate large scale physiological adjustments to maintain homeostasis. At steady state, each transition metal induced growth arrest, attempts to minimize oxidative stress, toxic ion scavenging, increased protein turnover and DNA repair, and modulation of active ion transport. While several of these constitute generalized stress responses, up regulation of active efflux of Co(II), Ni(II), Cu(II), and Zn(II), down regulation of Mn(II) uptake and up regulation of Fe(II) chelation, confer resistance to the respective metals. We have synthesized all these discoveries into a unified systems level model to provide an integrated perspective of responses to six transition metals with emphasis on experimentally verified regulatory mechanisms. Finally, through comparisons across global transcriptional responses to different metals we provide insights into putative in vivo metal selectivity of metalloregulatory proteins and demonstrate that a systems approach can help rapidly unravel novel metabolic potential and regulatory programs of poorly studied organisms. Keywords: stress response, dose response
2006-05-31 | GSE7613 | GEO