Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology

Baumgart M, Unthan S, Rückert C, Sivalingam J, Grünberger A, Kalinowski J, Bott M, Noack S, Frunzke J (2013)
Applied and environmental microbiology 79(19): 6006-6015.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
: The activity of bacteriophages and phage-related mobile elements is a major source for genome rearrangements and genetic instability of their bacterial hosts. The genome of the industrial amino acid producer Corynebacterium glutamicum ATCC 13032 contains three prophages (CGP1-3) of so far unknown functionality. Several phage genes are regularly expressed and the large prophage CGP3 (∼190 kbp) has recently been shown to be induced under certain stress conditions. Here, we present the construction of MB001, a prophage-free variant of C. glutamicum ATCC 13032 with a 6 % reduced genome. This strain does not show any unfavorable properties during extensive phenotypic characterization under various standard and stress conditions. As expected, we observed an improved growth and fitness of MB001 under SOS-response inducing conditions that trigger CGP3 induction in the wild type strain. Further studies revealed that MB001 has a significantly increased transformation efficiency and produced about 30 % more of the heterologous model protein eYFP, presumably as a consequence of an increased plasmid copy number. These effects were attributed to the loss of the restriction-modification system (cg1996-98) located within CGP3. The deletion of the prophages without any negative effect results in a novel platform strain for metabolic engineering and represents a useful step towards the construction of a C. glutamicum chassis genome of strain ATCC 13032 for biotechnological applications and synthetic biology.
Erscheinungsjahr
2013
Zeitschriftentitel
Applied and environmental microbiology
Band
79
Ausgabe
19
Seite(n)
6006-6015
ISSN
0099-2240
Page URI
https://pub.uni-bielefeld.de/record/2614036

Zitieren

Baumgart M, Unthan S, Rückert C, et al. Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology. Applied and environmental microbiology. 2013;79(19):6006-6015.
Baumgart, M., Unthan, S., Rückert, C., Sivalingam, J., Grünberger, A., Kalinowski, J., Bott, M., et al. (2013). Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology. Applied and environmental microbiology, 79(19), 6006-6015. doi:10.1128/AEM.01634-13
Baumgart, M., Unthan, S., Rückert, C., Sivalingam, J., Grünberger, A., Kalinowski, J., Bott, M., Noack, S., and Frunzke, J. (2013). Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology. Applied and environmental microbiology 79, 6006-6015.
Baumgart, M., et al., 2013. Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology. Applied and environmental microbiology, 79(19), p 6006-6015.
M. Baumgart, et al., “Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology”, Applied and environmental microbiology, vol. 79, 2013, pp. 6006-6015.
Baumgart, M., Unthan, S., Rückert, C., Sivalingam, J., Grünberger, A., Kalinowski, J., Bott, M., Noack, S., Frunzke, J.: Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology. Applied and environmental microbiology. 79, 6006-6015 (2013).
Baumgart, Meike, Unthan, Simon, Rückert, Christian, Sivalingam, Jasintha, Grünberger, Alexander, Kalinowski, Jörn, Bott, Michael, Noack, Stephan, and Frunzke, Julia. “Construction of a prophage-free variant of Corynebacterium glutamicum ATCC 13032 - a platform strain for basic research and industrial biotechnology”. Applied and environmental microbiology 79.19 (2013): 6006-6015.

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