GEO DataSets

(Submitter supplied) Investigation of whole genome gene expression levels in Clostridium acetobutylicum strain 824 grown individually on starch, galactose, lactose, mannose, fructose, glucose, arabinose, xylose, cellobiose, maltose, sucrose

Organism:

Clostridium acetobutylicum ATCC 824

Type:

Expression profiling by array

Platform:

GPL9387

33 Samples

Download data: PAIR

(Submitter supplied) The transport of carbohydrates by Streptococcus mutans is accomplished by the phosphoenolpyruvate-phosphotrasferase system (PTS) and ATP-binding cassette (ABC) transporters. To undertake a global transcriptional analysis of all S. mutans sugar transporters simultaneously, we used a whole-genome expression microarray. Global transcription profiles of S. mutans UA159 were determined for several carbohydrates. more...

Organism:

Streptococcus mutans; Streptococcus mutans UA159

Type:

Expression profiling by array

Platform:

GPL4769

48 Samples

Download data: CEL, EXP

(Submitter supplied) L. acidophilus cells, transferred at least five times in modified MRS medium (Barrangou et al, 2003) containing the carbohydrate of interest, were grown to an OD600 of 0.6, harvested and processed for microarray experiments (Azcarate-Peril et al, 2005). Keywords: other

Organism:

Lactobacillus acidophilus

Type:

Expression profiling by array

Platform:

GPL1401

28 Samples

Download data

(Submitter supplied) Background: Bacterial fermentation of carbohydrates from sustainable lignocellulosic biomass into biofuels by the anaerobic bacterium Clostridium acetobutylicum is a promising alternative energy source to fossil fuels. Understanding the complex metabolic pathways it employs and how they are regulated will contribute to improved biofuel production. Recently, it has been demonstrated that xylose is not appreciably fermented in the presence of arabinose, suggesting a hierarchy of pentose utilization in this organism. more...

Organism:

Clostridium acetobutylicum ATCC 824

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24347

48 Samples

Download data: CSV

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

Organism:

Caldicellulosiruptor saccharolyticus

Type:

Expression profiling by array

Platform:

GPL6681

15 Samples

Download data: TXT

(Submitter supplied) The co-utilization of hexoses and pentoses derived from lignocellulose is an attractive trait for in microorganisms considered for consolidated biomass processing to biofuels. This issue was examined for the H2-producing, extremely thermophilic bacterium Caldicellulosiruptor saccharolyticus growing on oligosaccharides (composed of glucose and xylose) compared to monosaccharides. Based on the whole-genome transcriptional response analysis and comparative genomics, carbohydrate specificities for transport systems could be proposed for a number of the 24 putative carbohydrate ATP-binding cassette (ABC) transporters in the C. more...

Organism:

Caldicellulosiruptor saccharolyticus

Type:

Expression profiling by array

Platform:

GPL6681

5 Samples

Download data: TXT

(Submitter supplied) The co-utilization of hexoses and pentoses derived from lignocellulose is an attractive trait for in microorganisms considered for consolidated biomass processing to biofuels. This issue was examined for the H2-producing, extremely thermophilic bacterium Caldicellulosiruptor saccharolyticus (Csac) growing on individual monosaccharides (arabinose, fructose, galactose, glucose, mannose and xylose), mixtures of these sugars. more...

Organism:

Caldicellulosiruptor saccharolyticus

Type:

Expression profiling by array

Platform:

GPL6681

10 Samples

Download data: TXT

(Submitter supplied) Clostridium acetobutylicum is a typical bacterium of major importance to industrial butanol production. In order to dissect the regulatory network pertaining to the industrial application of this bacterium, catabolite control protein A (CcpA) was investigated for its global function by DNA microarray.It showed that CcpA of C. acetobutylicum controls hundreds of genes, not only carbon metabolism, but also solvent production and sporulation in the life cycle.The results here demonstrated that CcpA is an important pleiotropic regulator related to some specific physiological and biochemical process in butanol-producing C. more...

Organism:

Clostridium acetobutylicum

Type:

Expression profiling by array

Platform:

GPL14821

8 Samples

Download data: TXT

(Submitter supplied) Alkaline hemicellulytic bacteria Bacillus sp. N16-5 has abroad substrate spectrum and exhibits great growth ability on complex carbohydrates. In order to get insight into its carbohydrate utilization mechanism, global transcriptional profiles were separately determined for growth on glucose, fructose, mannose, galactose, arabinose, xylose, galactomannan, xylan, pectin and carboxymethyl cellulose by using one-color microarrays.

Organism:

Bacillus sp. N16-5

Type:

Expression profiling by array

Platform:

GPL15620

30 Samples

Download data: TXT

(Submitter supplied) Hyperthermophilic bacteria of the genus Thermotoga are known to utilize a wide range of simple and complex polysaccharides. T. maritima's transcriptional response to a variety of mono- and poly-saccharides was previously studied to assign functions to genes involved in carbohydrate uptake and utilization. To compare and contrast closely-related members of the Thermotoga genus, a four-species microarray was developed by expanding a whole genome T. more...

Organism:

Thermotoga maritima; Thermotoga sp. RQ2; Thermotoga neapolitana; Thermotoga petrophila

Type:

Expression profiling by array

Platform:

GPL13655

4 Samples

Download data: CSV, GPR

(Submitter supplied) The global transcriptome of the wild type Lactobacillus acidophilus NCFM strain (NCK56) was measured during exponential growth on 11 prebiotic carbohydrates and glucose to identify the specific gene cluster differentially upregulated in response to each carbohydrate.

Organism:

Lactobacillus acidophilus NCFM

Type:

Expression profiling by array

Platform:

GPL7374

12 Samples

Download data: TXT

(Submitter supplied) The glucose/mannose-PTS permease EIIMan encoded by manLMN in the dental caries pathogen Streptococcus mutans has a dominant influence on sugar-specific, CcpA-independent catabolite repression (CR). Mutations in manL affect energy metabolism and virulence-associated traits, including biofilm formation, acid tolerance and competence. Using promoter:reporter fusions, expression of the manLMN and the fruRKI operons, encoding a transcriptional regulator, a fructose-1-P kinase and a fructose-PTS permease EIIFru, respectively, was monitored in response to carbohydrate source and in mutants lacking CcpA, FruR, and components of EIIMan. more...

Organism:

Streptococcus mutans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21130

9 Samples

Download data: XLSX

(Submitter supplied) The phosphoenolpyruvate:sugar phosphotransferase system (PTS) is the major carbohydrate transport system in oral streptococci. The mannose-PTS of Streptococcus mutans, which transports mannose and glucose, is involved in carbon catabolite repression (CCR) and regulates the expression of known virulence genes. In this study, we investigated the role of EIIGlc and EIIABMan in sugar metabolism, gene regulation, biofilm formation, and competence. more...

Organism:

Streptococcus mutans

Type:

Expression profiling by array

Platform:

GPL4340

12 Samples

Download data: MEV

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

Organism:

Clostridium acetobutylicum; Arthrobacter sp.; Clostridium acetobutylicum DSM 1731

Type:

Expression profiling by array

Platforms:

GPL19020 GPL19013

16 Samples

Download data: TXT

(Submitter supplied) Immobilization of Clostridium acetobutylicum B3 onto fibrous matrix by surface-adsorption was developed and applied to biobutanol production. The immobilized C. acetobutylicum B3 cells formed biofilm and showed dramatically improved butanol tolerance and production rate. DNA array-based transcriptional analysis of C.acetobutylicum B3 biofilm cells was conducted to elucidate the gene expression profile of the biofilm cells. more...

Organism:

Clostridium acetobutylicum; Clostridium acetobutylicum DSM 1731; Arthrobacter sp.

Type:

Expression profiling by array

Platform:

GPL19020

8 Samples

Download data: TXT

(Submitter supplied) Immobilization of Clostridium acetobutylicum B3 onto fibrous matrix by surface-adsorption was developed and applied to biobutanol production. The immobilized C. acetobutylicum B3 cells formed biofilm and showed dramatically improved butanol tolerance and production rate. DNA array-based transcriptional analysis of C.acetobutylicum B3 biofilm cells was conducted to elucidate the gene expression profile of the biofilm cells. more...

Organism:

Clostridium acetobutylicum; Arthrobacter sp.

Type:

Expression profiling by array

Platform:

GPL19013

8 Samples

Download data: TXT

(Submitter supplied) Transcriptomic analysis was applied to acidogenic, solventogenic and alcohologenic steady-state C. acetobutylicum cells for understanding the regulation of the metabolism of this organism. Used microarray is Clostridium acetobutylicum ATCC824 transcriptional 44k v4, correspondance to GPL10908

Organism:

Clostridium acetobutylicum ATCC 824

Type:

Expression profiling by array

Platform:

GPL10908

9 Samples

Download data: TXT

(Submitter supplied) Transcriptomic analysis was applied to acidogenic, solventogenic and alcohologenic steady-state C. acetobutylicum cells for understanding the regulation of the metabolism of this organism. Used microarray is Clostridium acetobutylicum ATCC824 transcriptional 44k v4, correspondance to GPL10908

Organism:

Clostridium acetobutylicum ATCC 824

Type:

Expression profiling by array

Platform:

GPL10908

36 Samples

Download data: TXT

(Submitter supplied) Roseburia inulinivorans is a recently identified motile representative of the Firmicutes that contributes to butyrate formation from a variety of dietary polysaccharide substrates in the human large intestine. Microarray analysis was used here to investigate substrate-driven gene expression changes in R. inulinivorans A2-194. A cluster of fructo-oligosaccharide (FOS)/inulin utilisation genes induced during growth on inulin included one encoding a b-fructofuranosidase protein that was prominent in the proteome of inulin-grown cells. more...

Organism:

Roseburia inulinivorans DSM 16841; Roseburia inulinivorans

Type:

Expression profiling by array

Platform:

GPL10020

4 Samples

Download data: TXT

(Submitter supplied) Caldicellulosiruptor saccharolyticus is an extremely thermophilic, Gram-positive anaerobe, which ferments cellulose-, hemicellulose- and pectin-containing biomass to acetate, CO2 and hydrogen. Its broad substrate range, high hydrogen-producing capacity, and ability to co-utilize glucose and xylose, make this bacterium an attractive candidate for microbial bioenergy production. Glycolytic pathways and an ABC-type sugar transporter were significantly up-regulated during growth on glucose and xylose, indicating that C. more...

Organism:

Caldicellulosiruptor saccharolyticus

Type:

Expression profiling by array

Platform:

GPL6681

4 Samples

Download data: CSV