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High-Throughput Allelic Replacement Screening in Bacillus subtilis

Part of the Methods in Molecular Biology book series (MIMB,volume 2004)


Site-directed mutagenesis is a key tool in the analysis of biological mechanisms. We have established an efficient and systematic gene targeting strategy for Bacillus subtilis based on the Golden Gate cloning methodology. Our approach permits the introduction of single or multiple point mutations or of heavily engineered alleles into the endogenous gene locus in a single step using a 96-well microtiter plate format. We have successfully applied this system for high-throughput functional screening of resized variants of the Structural Maintenance of Chromosome (Smc) protein and for exhaustive cysteine cross-linking mutagenesis. Here we describe, in detail, the experimental setup for high-throughput introduction of modifications into the B. subtilis chromosome. With minor modifications, the approach should be applicable to other bacteria and yeast.

Key words

  • Golden Gate assembly
  • Bacillus subtilis
  • Gene targeting
  • High-throughput screening
  • Cysteine scanning

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  • DOI: 10.1007/978-1-4939-9520-2_5
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Correspondence to Stephan Gruber .

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Author Contributions

F.B. and S.G. designed, established, and optimized the Golden Gate cloning and allelic replacement strategy. F.B. wrote code for automated primer design. M.-L.D.-D. wrote the draft manuscript, while F.B. and S.G. commented on the manuscript.

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Diebold-Durand, ML., Bürmann, F., Gruber, S. (2019). High-Throughput Allelic Replacement Screening in Bacillus subtilis . In: Badrinarayanan, A. (eds) SMC Complexes. Methods in Molecular Biology, vol 2004. Humana, New York, NY.

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  • Publisher Name: Humana, New York, NY

  • Print ISBN: 978-1-4939-9519-6

  • Online ISBN: 978-1-4939-9520-2

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