The dynamic architecture of the metabolic switch in Streptomyces coelicolor
. (2010) The dynamic architecture of the metabolic switch in Streptomyces coelicolor. BMC Genomics, Vol.11 (Article 10). ISSN 1471-2164
WRAP_Challis_Dynamic_Architecture.pdf - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Official URL: http://dx.doi.org/10.1186/1471-2164-11-10
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.
|Item Type:||Journal Article|
|Subjects:||Q Science > QR Microbiology|
|Divisions:||Faculty of Science > Life Sciences (2010- ) > Biological Sciences ( -2010)
Faculty of Science > Chemistry
Faculty of Science > Centre for Systems Biology
|Library of Congress Subject Headings (LCSH):||Streptomyces coelicolor, Soil microbiology -- Research, Microbial metabolism -- Regulation, Antibiotics -- Synthesis, Bacteria -- Morphogenesis|
|Journal or Publication Title:||BMC Genomics|
|Publisher:||BioMed Central Ltd.|
|Official Date:||6 January 2010|
|Access rights to Published version:||Open Access|
|Funder:||European Commission (EC), Norges forskningsråd [Norwegian Research Council]|
|Grant number:||GEN2006- 27745-E/SYS: P-UK-01-11-3i (SySMO), 181840/I30 (NF)|
1. Kolter R, Siegele DA, Tormo A: The stationary phase of the bacterial life
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