Project description:Comparison of transcript profiling in Gcn5 and Ada2a drosophila mutant larve, with previously published transcript profiling in Nurf301 mutants (Badenhorst, P. et al. Genes Dev 19, 2540-5, 2005).
Project description:Model legume Lotus japonicus was subjected to non-lethal long-term salinity and profiled at the transcriptomic level. Three independent experiments were performed, testing two experimental designs: a traditional gradual acclimation following a step-wise increase of salt concentration and an initial acclimation approach (ia).
Project description:This SuperSeries is composed of the following subset Series: GSE24853: Expression analysis of Spathaspora passalidarum NRRL Y-27907 grown in glucose or xylose GSE24854: Expression analysis of Pichia stipitis CBS 6054 grown in glucose or xylose GSE24855: Expression analysis of Lodderomyces elongisporus NRRL YB-4239 grown in glucose or xylose GSE24856: Expression analysis of Candida tenuis NRRL Y-1498 grown in glucose or xylose GSE24857: Expression analysis of Candida albicans WO-1 grown in glucose or xylose Refer to individual Series
Project description:Primary cultured hippocampal neurons were infected with lentiviral particles bearing constitutively active versions of the transcription factors CREB, SRF, EGR1 and FOS to define the downstream genetic program associated with each of these paradigmatic transcription factors in neurons. For CREB, we also extracted samples at a shorter infection time to try to dissect the different components of the wider genetic response observed upon expression of a constitutively active version of this transcription factor. In order to further explore the contribution of these transcriptional regulators to activity-driven gene expression, we also treated cultured hippocampal neurons infected with GFP-only expressing lentiviral particles with different drugs (bicuculline, forskokine, and BDNF) and profiled the associated transcriptional response. Finally, in order to further explore the role of CREB in forskolin-mediated gene expression, we also used A-CREB, a dominant negative form of this transcription factor. Specifically, we stimulated neurons with forskolin in the presence or absence of lentiviral particles expressing A-CREB and carried out genome-wide transcriptional profiling.
Project description:Investigation of whole genome gene expression level changes in Aspergillus nidulans OE::rsmA compared to wild-type RDIT9.32 (veA). A twelve array study using total RNA recovered from six separate cultures of Aspergillus nidulans wild-type RDIT9.32 (veA) and six separate cultures of Aspergillus nidulans overexpressing rsmA (restorer of secondary metabolism A), using custom-designed, four-plex arrays. The experiment was divided into two runs. In the first run, three biological replicates each of Aspergillus nidulans wild-type RDIT9.32 (veA) and Aspergillus nidulans carrying a plasmid overexpressing rsmA under the control of the gpdA promoter were assayed. In the second run, three biological replicates each of Aspergillus nidulans wild-type RDIT9.32 (veA) and Aspergillus nidulans overexpressing rsmA at the native locus under the control of the gpdA promoter were assayed.
Project description:Comparison of L5 DRG gene expression profiles at day 14 from gp120+ddC treated animals vs sham (SA + saline) treated animals.<br>This experiment is part of larger study, where the expression profiles of three disparate models of neuropathic pain (SNT, VZV infection and gp120+ddC) are compared in order to find genes that are responsible for mechanical hypersensitivity formation/maintenance.
Project description:A six array study using total gDNA recovered from two separate cultures of each of three different strains of Saccharomyces cerevisiae (YB-210 or CRB, Y389 or MUSH, and Y2209 or LEP) and two separate cultures of Saccharomyces cerevisiae DBY8268. Each array measures the hybridization of probes tiled across the Saccharomyces cerevisiae genome. Biological replicates: 2 for each strain, 2 for control. Grown and harvested in parallel. One replicate per array.
Project description:Abstract: The antimalarial activity of the antibiotic thiostrepton has long been attributed to inhibition of apicoplast protein synthesis through binding of apicoplast ribosomal RNA. However, the kinetics of parasite death upon thiostrepton treatment differ from those seen for other inhibitors of apicoplast housekeeping functions. We have analysed global changes in gene expression of the malaria parasite, Plasmodium falciparum, in an attempt to shed light on the responses of the parasite to this drug. Our results indicate a delay in gene expression profiles of thiostrepton-treated parasites. A small number of genes appear to be regulated outside of this trend; our data suggest a response from genes encoding components of the mitochondrial translational machinery, while little response is seen from genes encoding apicoplast-targeted proteins. Our findings are consistent with an effect of thiostrepton on mitochondrial protein synthesis, and thus warrant a re-evaluation of the target of thiostrepton in Plasmodium. They also provide some suggestion of mitochondrion – nucleus signalling in the parasite. 3 biological replicates each for treated and untreated: control (1/2000 DMSO) and LD70 thiostrepton, respectively
Project description:The transcriptome of two different Pseudomonas aeruginosa mutant strains were compared to the Pseudomonas aeruginosa wild type strain in the stationary growth phase
Project description:Investigation of whole genome gene expression level changes in Spathaspora passalidarum NRRL Y-27907 grown aerobically in xylose, compared to the same strain grown aerobically in glucose. A six array study using total RNA recovered from three separate cultures of Spathaspora passalidarum NRRL Y-27907 grown in glucose and three separate cultures of Spathaspora passalidarum NRRL Y-27907 grown in xylose. Each array measures the expression level of 362,487 probes (average probe length 54.5 +/- 4.0 nt) tiled across the Spathaspora passalidarum NRRL Y-27907 genome with a median spacing distance of 29 nt. During data processing, probes are filtered to include only those probes corresponding to annotated protein-coding genes.