Changes in flux on the metabolome

Assay to measure metabolites of yeast saccharomyces cerevisiae under different nutrient limitations

Limiting Nutrients: ethanol, nitrogen, glucose, phosphorus, carbon, sulfur, sulphur

This data is public data taken from the BioInvestigation Index. (http://www.ebi.ac.uk/bioinvindex/study.seam?studyId=BII-S-1)

Submitter: Katy Wolstencroft

Assay type: Metabolite Profiling

Technology type: Mass Spectrometry

Investigation: Growth control of the eukaryote cell: a systems...

Study: 1 hidden item

Excel template for metabolomics data

Dear SEEK users, this Assay is just an example Excell sheet for intracellular metabolites concentration measurements performed using cell culture growing in chemostat

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Submitter: Olga Krebs

Assay type: Amplification

Technology type: Mass Spectrometry

Investigation: Methods for interrelating 'omics data

Study: Metabolomics data capture

Excell sheet template : concentrations of intracellular metabolites

Excell sheet template : concentrations of intracellular metabolites

Creator: Olga Krebs

Submitter: Olga Krebs

The dynamic architecture of the metabolic switch in Streptomyces coelicolor

Abstract (Expand)

BACKGROUND: During the lifetime of a fermenter culture, the soil bacterium S. coelicolor undergoes a major metabolic switch from exponential growth to antibiotic production. We have studied gene … expression patterns during this switch, using a specifically designed Affymetrix genechip and a high-resolution time-series of fermenter-grown samples. RESULTS: Surprisingly, we find that the metabolic switch actually consists of multiple finely orchestrated switching events. Strongly coherent clusters of genes show drastic changes in gene expression already many hours before the classically defined transition phase where the switch from primary to secondary metabolism was expected. The main switch in gene expression takes only 2 hours, and changes in antibiotic biosynthesis genes are delayed relative to the metabolic rearrangements. Furthermore, global variation in morphogenesis genes indicates an involvement of cell differentiation pathways in the decision phase leading up to the commitment to antibiotic biosynthesis. CONCLUSIONS: Our study provides the first detailed insights into the complex sequence of early regulatory events during and preceding the major metabolic switch in S. coelicolor, which will form the starting point for future attempts at engineering antibiotic production in a biotechnological setting.

Authors: Kay Nieselt, Florian Battke, Alexander Herbig, Per Bruheim, Alexander Wentzel, Øyvind M Jakobsen, Håvard Sletta, Mohammad T Alam, Maria E Merlo, Firstname Lastname, Firstname Lastname, Edward R Morrissey, Miguel A Juarez-Hermosillo, Antonio Rodríguez-García, Merle Nentwich, Louise Thomas, Mudassar Iqbal, Roxane Legaie, William H Gaze, Gregory L Challis, Ritsert C Jansen, Lubbert Dijkhuizen, David A Rand, David L Wild, Michael Bonin, Jens Reuther, Wolfgang Wohlleben, Margaret C M Smith, Nigel J Burroughs, Juan F Martín, David A Hodgson, Eriko Takano, Rainer Breitling, Trond E Ellingsen, Elizabeth M H Wellington

Date Published: 28th May 2009

Publication Type: Not specified

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