Abstract
The genus Clostridium is a diverse assemblage of Gram positive, anaerobic, endospore-forming bacteria. Whilst certain species have achieved notoriety as important animal and human pathogens (e.g. Clostridium difficile, Clostridium botulinum, Clostridium tetani, and Clostridium perfringens), the vast majority of the genus are entirely benign, and are able to undertake all manner of useful biotransformations. Prominent amongst them are those species able to produce the biofuels, butanol and ethanol from biomass-derived residues, such as Clostridium acetobutylicum, Clostridium beijerinkii, Clostridium thermocellum, and Clostridium phytofermentans. The prominence of the genus in disease and biotechnology has led to the need for more effective means of genetic modification. The historical absence of methods based on conventional strategies for “knock-in” and “knock-out” in Clostridium has led to the adoption of recombination-independent procedures, typified by ClosTron technology. The ClosTron uses a retargeted group II intron and a retro-transposition-activated marker to selectively insert DNA into defined sites within the genome, to bring about gene inactivation and/or cargo DNA delivery. The procedure is extremely efficient, rapid, and requires minimal effort by the operator.
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Acknowledgments
The authors acknowledge the financial support of UK Medical Research Council (G0601176), the European Union (HEALTH-F3-2008-223585), the UK Biotechnology and Biological Sciences Research Council (BB/E021271/1, BB/D001498/1, BB/F003390/1, and BB/G016224/1), SysMO (Systems Biology of Microorganisms) and Morvus Technologies Ltd.
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Kuehne, S.A., Heap, J.T., Cooksley, C.M., Cartman, S.T., Minton, N.P. (2011). ClosTron-Mediated Engineering of Clostridium . In: Williams, J. (eds) Strain Engineering. Methods in Molecular Biology, vol 765. Humana Press. https://doi.org/10.1007/978-1-61779-197-0_23
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DOI: https://doi.org/10.1007/978-1-61779-197-0_23
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