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GSE53985
Homo sapiens
6 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Myocilin, a causative gene for open-angle glaucoma, encodes a secreted glycoprotein of unknown function. To elucidate its function(s), we produced a stably transfected HEK293 cell line expressing myocilin and compared the expression profiles between the myocilin-expressing cell line and a vector control cell line using Affymetrix GeneChip U133 plus 2.0 array. A significant portion of differentially-expressed genes in the myocilin-expressing cells was associated with cell growth and cell death, suggesting that myocilin may have an important role regulating cell growth/survival..
Publication Title
Myocilin regulates cell proliferation and survival.
Sample Metadata Fields
Cell line
View Samples- Danio rerio
- 18 Downloadable Samples
IlluminaHiSeq2000
Description
The control of mRNA stability plays a central role in regulating gene expression. In metazoans, the earliest stages of development are driven by maternally supplied mRNAs. The degradation of these maternal mRNAs is critical for promoting the maternal-to-zygotic transition of developmental programs, although the underlying mechanisms are poorly understood in vertebrates. Here, we characterized maternal mRNA degradation pathways in zebrafish using a transcriptome analysis and systematic reporter assays. Our data demonstrate that ORFs enriched with uncommon codons promote deadenylation by the CCR4-NOT complex in a translation-dependent manner. This codon-mediated mRNA decay is conditional on the context of the 3' UTR, with long 3' UTRs conferring resistance to deadenylation. These results indicate that the combined effect of codon usage and 3' UTR length determines the stability of maternal mRNAs in zebrafish embryos. Our study thus highlights the codon-mediated mRNA decay as a conserved regulatory mechanism in eukaryotes. Overall design: zebrafish embryonic mRNA profile at 2 different stages (2 hpf and 6 hpf) in wildtype and 3 additional conditions (miR-430 inhibition, RNApol II inhibition and CNOT7 inhibition) at 6 hpf. All experiments are performed as triplicates
Publication Title
Codon Usage and 3' UTR Length Determine Maternal mRNA Stability in Zebrafish.
Sample Metadata Fields
No sample metadata fields
View Samples- Danio rerio
- 6 Downloadable Samples
- IlluminaHiSeq2000
Description
we determined the contribution of the decapping enzyme Dcp2 to maternal mRNA clearance in zebrafish embryos by overexpressing a dominant-negative form of Dcp2. Overall design: zebrafish embryonic mRNA profile at 6 hpf in mock-inejcted or Dcp2-DN expressing embryos. Experiments are performed as triplicates.
Publication Title
Pervasive yet nonuniform contributions of Dcp2 and Cnot7 to maternal mRNA clearance in zebrafish.
Sample Metadata Fields
No sample metadata fields
View Samples- Saccharomyces cerevisiae
- 4 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
Allyl alcohol is a highly toxic industrial chemical used as a synthetic substrate, and as an herbicide in agriculture. It is evident that Allyl alcohol is metabolized by alcohol dehydrogenases (ADH) to the highly toxic Acrolein. Acrolein is a simple unsaturated aldehyde, ubiquitous environmental pollutant, endogenous metabolite and major constituent of cigarette smoke. Acrolein is highly electrophilic in nature and has strong reactivity towards nucleophiles present in cell such as amino acids, proteins and DNA.
Publication Title
Molecular cytotoxicity mechanisms of allyl alcohol (acrolein) in budding yeast.
Sample Metadata Fields
No sample metadata fields
View Samples- Saccharomyces cerevisiae
- 4 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
Valproic acid (VA) is a small-chain branched fatty acid, widely used as anticonvulsant, and mood stabilizer to treat psychiatric illness. Valproic acid is also known to inhibit the histone deacetylases (HDACs), which makes it as a potent antitumor agent in alone or in combination with other cytotoxic drugs. Beside its conventional activities, valproic acid reported to have much broader, complicated effects and affect many complex physiological processes. However the molecular mechanisms of valproic acid are unclear.
Publication Title
Combined Transcriptomics and Chemical-Genetics Reveal Molecular Mode of Action of Valproic acid, an Anticancer Molecule using Budding Yeast Model.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Caspases are cysteine-proteases with key roles in the execution phase of apoptosis. Additional cellular activities, unrelated to cell death seem to be influenced by these enzymes. Identification of genes co-regulated with caspases could help to ascertain new biological roles for these proteases.To identify genes and pathways under the influence of caspase-2 we silenced its expression in U87MG glioblastoma cell line. Transcriptional expression profiles of cells transfected with caspase-2 siRNA or control siRNA were compared.
Publication Title
Transcriptomic analysis unveils correlations between regulative apoptotic caspases and genes of cholesterol homeostasis in human brain.
Sample Metadata Fields
Cell line, Treatment
View Samples- Saccharomyces cerevisiae
- 4 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
KP1019 (trans-[tetrachlorobis(1H-indazole) ruthenate(III)]) is a ruthenium complex that exhibited anti-cancer activity in several in vitro and in vivo studies. KP1019 was even efficient against cancer cells that were resistant to other chemotherapeutic agents and thus emerged as a promising anti-cancer drug without dose-limiting cytotoxicity. However, the molecular mechanisms of its action are elusive.
Publication Title
A systematic assessment of chemical, genetic, and epigenetic factors influencing the activity of anticancer drug KP1019 (FFC14A).
Sample Metadata Fields
No sample metadata fields
View Samples- Drosophila melanogaster
- 18 Downloadable Samples
- Drosophila Gene 1.1 ST Array (drogene11st)
Description
Ectopic expression of DNMT3L in Drosophila causes melanotic tumor in the transgenic flies from fifth generation onwards.
Publication Title
DNMT3L enables accumulation and inheritance of epimutations in transgenic Drosophila.
Sample Metadata Fields
Specimen part
View Samples- Saccharomyces cerevisiae
- 4 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
In Saccharomyces cerevisiae, Sen1 is a 252-kDa, nuclear superfamily-1 RNA/DNA helicase that encoded by an essential gene SEN1 (Senataxin). It is an important component of the Nrd1p-Nab3p-Sen1p (NRD1) complex that regulates the transcriptional termination of most non-coding and some coding transcripts at RNA polymerase pause sites. Sen1 specifically interacts with Rnt1p (RNase III), an endoribonuclease, and with Rpb1p (Rpo21p), a subunit of RNA polymerase II, through its N-terminal domain (NTD), which is a critical element of the RNA-processing machinery. Moreover, mutations in the N-terminal tail of SETX, a human ortholog of yeast Senataxin (Sen1) reported in neurological disorders.
Publication Title
Sen1, the homolog of human Senataxin, is critical for cell survival through regulation of redox homeostasis, mitochondrial function, and the TOR pathway in Saccharomyces cerevisiae.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 2 Downloadable Samples
- Illumina HiSeq 2000
Description
We report here that human mitochondria contain small RNA including microRNA, piRNA, tRNA, rRNA, and RNA repeats. Mitochondria from human cells were purified and RNA isolated. Small RNAs were purified, library generated and analyzed by Illumina Hiseq 2000 system. The sequencing generated 19.5 and 17.7 million reads from HEK-293 and HeLa respectively. 91% and 97% sequences of HEK293 and HeLa respectively were annotated to various classes of small RNA. The total percentage of 4.21 and 2.58 sequences from HEK293 and HeLa respectively was found to be of miRNA. Further, we found only 1.2 % sequences from both the libraries aligned to mitochondrial genome. These results suggest that there is efficient transport of nuclear encoded small RNA to mitochondria. The small RNA in mitochondria may regulate critical cellular processes. Overall design: Analyzing the smallRNA in human mitochondria from two human cell lines (HEK-293 and HeLa).
Publication Title
Systematic analysis of small RNAs associated with human mitochondria by deep sequencing: detailed analysis of mitochondrial associated miRNA.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples