Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA95541 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Jurkat T cell line was transfected with SIV Nef controlled by an unducible promoter system. Nef was induced by addition of 10 micromolar pronasterone A and gene expression values were determined after 24 hrs. Control Jurkat cells were untransfected and treated with 10 micromolar pronasterone A and gene expressio values were determined after 24 hrs. Keywords: SIV Nef, Jurkat, pronasterone A
2006-07-25 | GSE4785 | GEO
Project description:Jurkat T cell line was transfected with SIV Nef controlled by an inducible promoter system. Nef was induced by addition of 10 micromolar pronasterone A and gene expression values were determined after 24 hrs. Control Jurkat cells were untransfected and treated with 10 micromolar pronasterone A and gene expressio values were determined after 24 hrs. Experiment Overall Design: Experimental conditions: 24 hr SIV Nef expression at physiological concentrations in T cells. Experiment Overall Design: Controls: Non-transfected. 24 hr.
2007-10-26 | E-GEOD-4785 | biostudies-arrayexpress
Project description:Purpose: Comparison of RNA-sequencing datasets obtained from exosomes of Nef-transfected and Mock-transfected HEK293T cells Methods: Assessment of RNA content of exosomes produced by Nef-transfected HEK293T cells and and Mock-transfected HEK293T cells Results: Differences in a set of microRNAs Conclusions: Nef-transfection induces changes in the microRNA content of exosomes
2018-11-18 | GSE122656 | GEO
Project description:Purpose: Comparison of RNA-sequencing datasets obtained from exosomes of Nef-transfected and Mock-transfected HEK293T cells. Methods: Assessment of RNA content of exosomes produced by Nef-transfected HEK293T cells and and Mock-transfected HEK293T cells. Results: Differences in a set of mRNAs. Conclusions: Nef-transfection might induces changes in the mRNA content of exosomes.
2018-11-18 | GSE122655 | GEO
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
2010-09-25 | GSE24338 | GEO
Project description:Kynureninase is a member of a large family of catalytically diverse but structurally homologous pyridoxal 5'-phosphate (PLP) dependent enzymes known as the aspartate aminotransferase superfamily or alpha-family. The Homo sapiens and other eukaryotic constitutive kynureninases preferentially catalyze the hydrolytic cleavage of 3-hydroxy-l-kynurenine to produce 3-hydroxyanthranilate and l-alanine, while l-kynurenine is the substrate of many prokaryotic inducible kynureninases. The human enzyme was cloned with an N-terminal hexahistidine tag, expressed, and purified from a bacterial expression system using Ni metal ion affinity chromatography. Kinetic characterization of the recombinant enzyme reveals classic Michaelis-Menten behavior, with a Km of 28.3 +/- 1.9 microM and a specific activity of 1.75 micromol min-1 mg-1 for 3-hydroxy-dl-kynurenine. Crystals of recombinant kynureninase that diffracted to 2.0 A were obtained, and the atomic structure of the PLP-bound holoenzyme was determined by molecular replacement using the Pseudomonas fluorescens kynureninase structure (PDB entry 1qz9) as the phasing model. A structural superposition with the P. fluorescens kynureninase revealed that these two structures resemble the "open" and "closed" conformations of aspartate aminotransferase. The comparison illustrates the dynamic nature of these proteins' small domains and reveals a role for Arg-434 similar to its role in other AAT alpha-family members. Docking of 3-hydroxy-l-kynurenine into the human kynureninase active site suggests that Asn-333 and His-102 are involved in substrate binding and molecular discrimination between inducible and constitutive kynureninase substrates.
| S-EPMC2531291 | biostudies-literature
Project description:RNA extracted at 240min. Samples are rRNA depleted. Expression measurement of Homo sapiens genes.
2019-07-31 | GSE114179 | GEO
Project description:We have investigated the role of actin dynamics and the effect of actin cytoskeleton modifying agents on retinoid receptor-mediated transactivation. Using Nef, an actin modifying HIV-1 protein, the role of LMK1/CFL1-mediated actin dynamics in receptor function was studied. The effect of Nef expression on transcriptome was investigated following transfection of HEK293 cells with Nef-expressing plasmid. The array data identified Nef-induced inhibition of a number of genes that contain retinoid receptor binding sites in their promoters. The experiment was designed to study the effect of expression of HIV-1 Nef protein on gene expression levels in HEK293 cells. Cells were transfected in three different experiments (each time in duplicate) with Nef expressing plasmid and a plasmid that contained a non-expressing Nef construct (Nef/Stop) as control. The cells were harvested after 36 of transfection and processed for gene array.
2011-08-25 | E-GEOD-31665 | biostudies-arrayexpress
Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression.
2011-02-19 | GSE20463 | GEO
Project description:As the evolution of miRNA genes has been found to be one of the important factors in formation of the modern type of man, we performed a comparative analysis of the evolution of miRNA genes in two archaic hominines, Homo sapiens neanderthalensis and Homo sapiens denisova, and elucidated the expression of their target mRNAs in bain.A comparative analysis of the genomes of primates, including species in the genus Homo, identified a group of miRNA genes having fixed substitutions with important implications for the evolution of Homo sapiens neanderthalensis and Homo sapiens denisova. The mRNAs targeted by miRNAs with mutations specific for Homo sapiens denisova exhibited enhanced expression during postnatal brain development in modern humans. By contrast, the expression of mRNAs targeted by miRNAs bearing variations specific for Homo sapiens neanderthalensis was shown to be enhanced in prenatal brain development.Our results highlight the importance of changes in miRNA gene sequences in the course of Homo sapiens denisova and Homo sapiens neanderthalensis evolution. The genetic alterations of miRNAs regulating the spatiotemporal expression of multiple genes in the prenatal and postnatal brain may contribute to the progressive evolution of brain function, which is consistent with the observations of fine technical and typological properties of tools and decorative items reported from archaeological Denisovan sites. The data also suggest that differential spatial-temporal regulation of gene products promoted by the subspecies-specific mutations in the miRNA genes might have occurred in the brains of Homo sapiens denisova and Homo sapiens neanderthalensis, potentially contributing to the cultural differences between these two archaic hominines.
| S-EPMC4686780 | biostudies-literature