Global gene expression data from 7-day old light-grown liquid cultured seedlings treated with or without auxin (5M IAA) for 2 h.
AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator.
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View SamplesGlobal gene expression data from 7-day old light-grown liquid cultured seedlings treated with or without auxin (5M IAA) for 2 h. Columbia (WT) and Auxin response factor 2 (ARF2) T-DNA insertion mutant (arf2-6 ) were used for this study. Each experimental condition has three true replicates for a total of 12 hybridizations.
AUXIN RESPONSE FACTOR 2 (ARF2): a pleiotropic developmental regulator.
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View SamplesApproximately 2.5 mg dry Col-0 seedlings were surface sterilized and stratified for 2 days at 4degreesC in liquid media containing 1.5% sucrose (w/v) before being transferred to light with constant shaking at 100 rpm on an orbital shaker. After 7 days, the seedling clusters were subjected to the treatments for 1 hr followed by total RNA isolation using the RNAqueous kit (Ambion). Each treatment was performed in triplicate or quadruplicate. All labeling (Enzo) and hybridization (Affymetrix) procedures were performed as directed by the manufacturers. Raw probe intensities output by the Affymetrix MAS software were processed using the RMA algorithm to obtain an expression measure for each gene on each array.
Identification of inhibitors of auxin transcriptional activation by means of chemical genetics in Arabidopsis.
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View SamplesACC Synthase (ACS) is the key regulatory enzyme in the ethylene biosynthesis in plants. It catalyzes the conversion of s-adenosylmethionine (SAM) to 1-aminocyclopropane-1-carboxylic acid (ACC), the precursor of ethylene. Arabidopsis has nine ACS genes. The goal of the project is to inactivate each gene by insertional mutagenesis and amiRNA technology and eventually construct a null ACS mutant. We have been recently able to achieve this goal. Furthermore, we wanted to know how inactivation of individual ACS genes affects global gene expression.
A combinatorial interplay among the 1-aminocyclopropane-1-carboxylate isoforms regulates ethylene biosynthesis in Arabidopsis thaliana.
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View SamplesGlobal gene expression data from 7-day old light-grown liquid cultured seedlings treated with or without auxin (5M IAA) for 2 h. Columbia (WT), IAA17 loss of function mutant allele (iaa17-2), IAA17 gain of function mutant allele (axr3-1) and iaa5 iaa6 iaa19 triple loss of function mutant allele (i5i6i19) were used for this study. Each experimental condition has three true replicates for a total of 24 hybridizations. Data
Functional genomic analysis of the AUXIN/INDOLE-3-ACETIC ACID gene family members in Arabidopsis thaliana.
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View SamplesRNA samples were extracted from liquid cultured seedlings treated with or without auxin (5M IAA) for 2 h.
Functional genomic analysis of the AUXIN RESPONSE FACTOR gene family members in Arabidopsis thaliana: unique and overlapping functions of ARF7 and ARF19.
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View SamplesA number of studies find that metastasis suppressor proteins, including RhoGDI2, may function in part though controlling expression of genes regulating metastasis (reviewed in Smith and Theodorescu, Nature Reviews Cancer, 2009, PMID: 19242414). To uncover systematically gene expression patterns dependent on RhoGDI2 expression, we profiled gene expression in stably transfected control (GFP empty vector) UM-UC-3 bladder carcinoma cells (which have lost endogenous expression of RhoGDI2, as occurs commonly in the progression of bladder cancer PMID: 15173088), as well as stably transfected GFP-tagged RhoGDI2 expressing UM-UC-3 cells.
RhoGDI2 suppresses lung metastasis in mice by reducing tumor versican expression and macrophage infiltration.
Specimen part, Cell line
View SamplesGiven the heterogeneity of disease evident from study of the presentation, histomorphology, disease course, and molecular lesions of bladder cancer, a cohort of 8 non-muscle invasive and 11 muscle invasive bladder cancers were profiled for gene expression using the Affymetrix HG-U133A platform.
Transcriptional signatures of Ral GTPase are associated with aggressive clinicopathologic characteristics in human cancer.
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View SamplesAn Arabidopsis mutant showing an altered ability to green on illumination after extended periods of darkness has been isolated in a screen for genomes uncoupled (gun) mutants. Following illumination for 24 h, 10-day-old dark-grown mutant seedlings accumulated 5 times more chlorophyll than wild-type seedlings and this was correlated with differences in plastid morphology observed by transmission electron microscopy. The mutant has been named greening after extended darkness 1 (ged1). We used microarrays to detail the global profiles of transcript abundances in the mutant in comparison to the wild type. Microarray analysis showed much lower amounts of transcripts of genes encoding seed storage proteins, oleosins and late embryogenesis abundant (LEA) proteins in 7-day-old seedlings of ged1 compared to wild type. RNA-gel-blot analyses confirmed very low levels of transcripts of seed protein genes in ged1 seedlings grown for 2-10 days in the dark, and showed higher amounts of transcripts of photosynthesis-related genes in illuminated 10-day-old dark-grown ged1 seedlings compared to wild type.
An Arabidopsis mutant able to green after extended dark periods shows decreased transcripts of seed protein genes and altered sensitivity to abscisic acid.
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View SamplesLoss of Ck1alpha produces 'flyabetic' larvae that are feeding defective. In addition we found other larvae with glucose elevations show feeding aversion.
Circulating glucose levels inversely correlate with <i>Drosophila</i> larval feeding through insulin signaling and SLC5A11.
Sex, Specimen part
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