GEO DataSets

(Submitter supplied) abstract: The plant cell wall is composed of many complex polymers, and its deconstruction requires an equally complex orchestration of a wide array of enzymes. In Neurospora crassa, clr-1, clr-2 and xlr-1 have been identified as the key transcription factors involved in cell wall breakdown. In order to define their regulons, we performed ChIPseq upon these three transcription factors. CLR-1, CLR-2 and XLR-1 each bind to the most highly and differentially expressed gene populations, which include the cellulases for the CLRs and the hemicellulases for XLR-1. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16164

11 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16164

33 Samples

Download data: TXT

(Submitter supplied) abstract: The plant cell wall is composed of many complex polymers, and its deconstruction requires an equally complex orchestration of a wide array of enzymes. In Neurospora crassa, clr-1, clr-2 and xlr-1 have been identified as the key transcription factors involved in cell wall breakdown. In order to define their regulons, we performed ChIPseq upon these three transcription factors. CLR-1, CLR-2 and XLR-1 each bind to the most highly and differentially expressed gene populations, which include the cellulases for the CLRs and the hemicellulases for XLR-1. more...

Organism:

Neurospora crassa

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16164

22 Samples

Download data: XLSX

(Submitter supplied) Hemicellulose, the second most abundant plant biomass fraction after cellulose, is widely viewed as a potential feedstock for the production of liquid fuels and other value-added materials. Degradation of hemicellulose by filamentous fungi requires production of many different enzymes, which are induced by biopolymers or its derivatives and regulated mainly at the transcriptional level through transcription factors (TFs). more...

Organism:

Neurospora crassa

Type:

Expression profiling by array

Platform:

GPL14949

23 Samples

Download data: GPR, TXT

(Submitter supplied) Filamentous fungi are one of the primary degraders of plant biomass because of their ability to produce enzymes that break down complex polysaccharides. The production of cellulolytic enzymes in fungi is dependent on transcription factors. In this article, we identified a N. crassa Zn2Cys6 transcription factor Clr5 that regulates the expression of cellulase on cellulose. N. crassa Δclr5 exhibited a significant decrease in secreted proteins (~46%), endo-glucanase (~55%), xylanase (~33%), β-glucosidase (~38%), and exocellulase (~40%) compared with the WT, while transcriptomic analysis revealed that clr5 was essential in cellulase expression. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16164

12 Samples

Download data: XLSX

(Submitter supplied) Purpose: To explore conservation of gene regulation by the transcription factor clr-2/clrB in Neurospora crassa and Aspergillus nidulans Methods: mRNA from wild type and clr-2/clrB mutants were collected after a culture shift from sucrose/glucose to Avicel (crystaline cellulose) or no carbon media Results: We show that N. crassa and A. nidulans have similair global transcriptional responses to Avicel, with several hundred genes showing specific induction, though the induced genes are more specifically targeted at cellulose for N. more...

Organism:

Neurospora crassa OR74A; Aspergillus nidulans FGSC A4

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL15146 GPL16600 GPL15147

22 Samples

Download data: FPKM_TRACKING, TXT

(Submitter supplied) Transcriptional profiling with next-generation sequencing methods refined our understanding of the N. crassa transcriptional response to cellulose and demonstrated that the newly characterized transcription factors clr-1 and clr-2 were required for the bulk of that response including induction all major cellulase and some major hemicellulase genes.

Organism:

Neurospora crassa OR74A

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL15146 GPL15147

26 Samples

Download data: TXT

(Submitter supplied) In filamentous ascomycete fungi, the utilization of alternate carbon sources is influenced by the zinc finger transcription factor CreA/CRE-1, which encodes a carbon catabolite repressor protein homologous to Mig1 from Saccharomyces cerevisiae. In Neurospora crassa, deletion of cre-1 results in increased secretion of amylase and β-galactosidase. Here, we determined the CRE-1 regulon by investigating the transcriptome of a Δcre-1 strain compared to wild type when grown on Avicel versus minimal medium (MM). more...

Organism:

Neurospora crassa

Type:

Expression profiling by array

Platform:

GPL13956

8 Samples

Download data: GPR, TXT

(Submitter supplied) Sterol Regulatory Element Binding Proteins (SREBPs) are conserved from yeast to mammalian cells and function in regulating sterol homeostasis. In fungi, the SREBP pathway has been implicated in the adaptation to hypoxia and in virulence. In Neurospora crassa and Trichoderma reesei, the SREBP pathway also negatively regulates protein secretion under lignocellulolytic conditions. Here we utilized global transcriptional profiling combined with genetic and physiological analyses to address the regulatory link between the SREBP pathway and protein secretion in N. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23150

12 Samples

Download data: FPKM_TRACKING

(Submitter supplied) Identifying nutrients available in the environment and utilizing them in the most efficient manner is a challenge common to all organisms. The model filamentous fungus Neurospora crassa is capable of utilizing a variety of carbohydrates, from simple sugars to the complex carbohydrates found in plant cell walls. The zinc binuclear cluster transcription factor CLR-1 is necessary for utilization of cellulose, a major, recalcitrant component of the plant cell wall; however, expression of clr-1 in the absence of an inducer is not sufficient to induce cellulase gene expression. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL23150 GPL16164

42 Samples

Download data: TXT

(Submitter supplied) The ability to rationally engineer filamentous fungi could greatly facilitate biotechnological enzyme production for the degradation of plant cell wall polysaccharides in biorefinery applications. However, an incomplete and fragmented knowledge base of the biomolecular networks responsible for plant cell wall deconstruction by filamentous fungi impedes experimental efforts in this direction. To expand this knowledge base, we have reconstructed a detailed network of those reactions occurring in the filamentous fungus Neurospora crassa that are important for the degradation of plant cell wall polysaccharides into simple sugars. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16164

12 Samples

Download data: FPKM_TRACKING

(Submitter supplied) Fungal degradation of lignocellulosic biomass requires various (hemi-)cellulases and plays key roles in biological carbon cycle. Although cellulases induction recently described in some saprobic filamentous fungi, regulation of cellulase transcription has not been studied thoroughly. Here, we identified and characterized the novel cellulase regulation factors clr-4 in Neurospora crassa and its ortholog Mtclr-4 in Myceliophthora thermophila. more...

Organism:

Neurospora crassa; Thermothelomyces thermophilus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL24572 GPL16164

6 Samples

Download data: XLSX

(Submitter supplied) Accurate nutrient sensing is important for rapid fungal growth and exploitation of available resources. Sulfur is an important nutrient source found in a number of biological macromolecules, including proteins and lipids. The model filamentous fungus Neurospora crassa is capable of utilizing sulfur found in a variety of sources from amino acids to sulfate. During sulfur starvation, the transcription factor CYS-3 is responsible for upregulation of genes involved in sulfur uptake and assimilation. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30082

12 Samples

Download data: TXT, XLSX

(Submitter supplied) Purpose: To explore the function of VIB1 in regulating cellulase production in Neurospora crassa. Method: mRNA from vib-1 mutants were collected after a culture shift from sucrose to Avicel (crystaline cellulose) or carbon-free media. Expression profiles of vib-1 mutants were compared with published profiles of wild type created under the same conditions. Results: We found that many genes that specifically upregulated in wild type upon exposure to Avicel were expressed at low levels in ∆vib-1 and many other genes involved in metabolism and energy were expressed at high levels compared to wild type. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17918 GPL16164

9 Samples

Download data: FPKM_TRACKING

(Submitter supplied) The transcription factor Cst6p in Saccharomyces cerevisiae has been reported to play important roles in several biological processes. However, the genome-wide targets of Cst6p and the mechanisms for its physiological functions remain unknown. Here, we mapped the genome-wide binding sites of Cst6p with ChIP-exo at high resolution. Cst6p binds to the promoter regions of 59 genes with various biological functions when cells are grown on ethanol, but hardly binds to the genome on glucose. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19756

4 Samples

Download data: XLSX

(Submitter supplied) Here we show that the ChEC-Seq technique is able to differentiate the binding specificities of Esa1 and Gcn5 two chromatin-binding factors displaying widespread genome-wide associations. We also show that the ChEC-Seq technique reveals strong binding of the transcription factor Sfp1 at Ribi gene promoters. Furthermore, our data provide the first evidence that a specific DNA motif previously identified by ChEC-Seq (Albert 2019 PMID: 30804227) is in fact an in vivo binding site for Sfp1.

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

10 Samples

Download data: BW

(Submitter supplied) Understanding how transcriptional programs help to coordinate cell growth and division is an important unresolved problem. Here we report that the nutrient- and stress-regulated transcription factor Sfp1 is rate-limiting for expression of a large suite of genes involved in yeast cell growth, including ribosomal protein, ribosome biogenesis, and snoRNA genes. Remarkably, the spectrum of Sfp1 transcription effects is concordant with a combination of chromatin immunoprecipitation and chromatin endogenous cleavage binding analyses, which together provide evidence for two distinct modes of Sfp1 promoter binding, one requiring a co-factor and the other a specific DNA-recognition motif. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

32 Samples

Download data: BIGWIG, BW

(Submitter supplied) Comparative transcriptional profiling of N. crassa grown on five major crop straws of China (barley, corn, rice, soybean and wheat straws) revealed a highly overlapping group of 430 genes, the Biomass commonly Induced Core Set (BICS). A large proportion of induced carbohydrate-active-enzyme (CAZy) genes (82 out of 113) were also conserved across the five plant straws. Excluding 178 genes within the BICS that were also up-regulated under no-carbon conditions, the remaining 252 genes were defined as the Biomass Regulon (BR). more...

Organism:

Neurospora crassa OR74A

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15146

6 Samples

Download data: TXT

(Submitter supplied) Histone H1 variants, known as linker histones, are essential chromatin components in higher eukaryotes, yet compared to the core histones relatively little is known about their in vivo functions. The filamentous fungus Neurospora crassa encodes a single H1 protein that is not essential for viability. To investigate the role of N. crassa H1, we constructed a functional FLAG-tagged H1 fusion protein and performed genomic and molecular analyses. more...

Organism:

Neurospora crassa

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL20705 GPL20660

22 Samples

Download data: TDF, TXT

(Submitter supplied) Analysis of DNA methylation in wildtype and mutants lacking histone H1 revealed increased DNA methylation when H1 is absent.

Organism:

Neurospora crassa

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL20660

7 Samples

Download data: TSV, TXT