We combined the nuclear run-on (NRO) assay which labels and captures nascent transcripts with high throughput DNA sequencing to examine transcriptional activity in Saccharomyces cerevisiae. Overall design: Examination of nascent transcripts and steady-state transcripts in exponentially growing and heat-shock treated yeast.
Genome-Wide Analysis of Nascent Transcription in Saccharomyces cerevisiae.
Cell line, Treatment, Subject
View SamplesTo investigate the role of AP-1 in Src-mediated transformation, we undertook a gene profiling study to characterize the transcriptomes of v-Src-transformed CEF expressing either the c-Jun dominant-negative mutant TAM67 or JunD shRNA.
JunD/AP-1 Antagonizes the Induction of DAPK1 To Promote the Survival of v-Src-Transformed Cells.
Specimen part
View SamplesObjective: To determine the effects of age and topographic location on gene expression in human neural retina.
Effects of aging and anatomic location on gene expression in human retina.
Sex, Age
View SamplesEffect of IPMS (BatIMS) overexpression on Arabidopsis thaliana.
Expression of a Brassica isopropylmalate synthase gene in Arabidopsis perturbs both glucosinolate and amino acid metabolism.
Age, Specimen part
View SamplesOligodendrocyte precursor cells from postnatal day 10 optic nerve remained in a developmentally immature state in LIF-/- mice. Partial recovery of myelin genes is seen in LIF-/- mice by postnatal day 14 in the optic nerve. Very little difference in myelin genes in the optic nerve is seen by postnatal day 35 (adult).
Leukemia inhibitory factor regulates the timing of oligodendrocyte development and myelination in the postnatal optic nerve.
Sex, Specimen part
View SamplesThe orphan nuclear receptor Ftz-F1 is expressed in all somatic nuclei in Drosophila embryos but mutations result in a pair-rule phenotype. Previously characterized Ftz-F1 target genes were co-regulated by Ftz, which is expressed in stripes, consistent with the pair-rule phenotype observed for ftz-f1 and ftz mutants. However, attempts to identify new target genes on the basis of Ftz-F1 and Ftz binding sites alone has met with only limited success. To discern the rules for Ftz-F1 target site selection in vivo and to identify additional target genes, a microarray analysis was performed comparing wildtype and ftz-f1 mutant embryos.
Activation of Ftz-F1-Responsive Genes through Ftz/Ftz-F1 Dependent Enhancers.
Specimen part
View SamplesSeven novel and potent Raf small molecule kinase inhibitors were evaluated in 7-day oral repeat-dose rat toxicity studies. All compounds tested induced hyperplasia in multiple tissues. Microarrays were used to investigate transciptional changes associated by treatment with a single compound to gain insight into the cellular changes that may contribute to the tissue hyperplasia.
Raf inhibition causes extensive multiple tissue hyperplasia and urinary bladder neoplasia in the rat.
Sex, Specimen part, Treatment
View SamplesThis series includes the global gene expression profile of the vastus lateralis muscle for 10 young (19-25 years old) and 12 older (70-80 years old) male subjects.
Identification of a molecular signature of sarcopenia.
No sample metadata fields
View SamplesWe were interested to explain why p53 binds some high affinity sites in contrast to other high affinity sites that are not bound by p53.
p53 binds preferentially to genomic regions with high DNA-encoded nucleosome occupancy.
Cell line, Treatment
View SamplesCanonical IKK/NF-B signaling is a master regulator of inflammation and innate immunity and has been implicated in the pathogenesis of T1D. To investigate the impact of NF-B activation on -cell homeostasis and diabetes development, we generated a transgenic gain-of-function mouse model allowing conditional NF-B activation via expression of IKK2-CA (constitutively active IKK2 allele) in -cells using the tetracycline-regulated gene expression system. Pdx-1-tTA (knockin model generating Pdx-1 haploinsufficiency) driver mice were used for -cell specific transgene expression. Double transgenic IKK2-CA-pdx-1 mice develop a full-blown immune-mediated diabetes.To identify gene expression changes underlying this diabetes development pancreatic islets of diabetic IKK2-CA-Pdx-1, PDX-1 +/- and control mice were prepared and isolated total RNA was used for microarray analysis.
Long-term IKK2/NF-κB signaling in pancreatic β-cells induces immune-mediated diabetes.
Specimen part
View Samples