Journal of Biochemistry Advance Access published online on October 27, 2007
Journal of Biochemistry, doi:10.1093/jb/mvm197
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© 2007 The Japanese Biochemical Society
Reshuffling of the Bacillus subtilis 168 genome by multifold inversion
1Graduate school of media and governance, Keio University, 5322 Endo, Fujisawa-shi, Kanagawa, 252-8520, Japan
2Institute for Advanced Biosciences, Keio University, 403-1 Nipponkoku, Daihouji, Tsuruoka-shi, Yamagata 997-0017, Japan
3Mitsubishi Kagaku Institute of Life Sciences, 11 Minamiooya, Machida-shi, Tokyo 194-8511, Japan
All correspondence to Prof. Mitsuhiro Itaya, Institute for Advanced Biosciences, Keio University, 403-1 Nipponkoku, Daihouji, Tsuruoka-shi, Yamagata 997-0017, Japan, Tel.: +81 (235) 29 0526; Fax.: +81 (235) 29 0530, E-mail address: mita2001{at}sfc.keio.ac.jp (M. Itaya)
Received September 6, 2007; Accepted October 8, 2007
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Summary:
The gemome of Bacillus subtilis 168 was modified to yield a genome vector for the cloning of DNA several Mb in size. Unlike contemporary plasmid-based vectors, this 4.2-Mb genome vector requires specific in vivo handling protocols because of its large size. Inversion mutagenesis, a method to modify local genome structure without gain or loss of genes, was applied intensively to the B. subtilis genome; this technique made possible both exchange and translocation of designated regions of the genome. This method not only reshuffles the genome of B. subtilis but can provide insight into the biologic principles underlying genome plasticity.
Key Words: Translocation, Inversion, homologous recombination, antibiotic resistance, competence, Transformation