T7 RNA polymerase-driven inducible cell lysis for DNA transfer from Escherichia coli to Bacillus subtilis


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Authors
Juhas, M 
Ajioka, JW 
Abstract

The majority of the good DNA editing techniques have been developed in Escherichia coli; however, Bacillus subtilis is better host for a plethora of synthetic biology and biotechnology applications. Reliable and efficient systems for the transfer of synthetic DNA between E. coli and B. subtilis are therefore of the highest importance. Using synthetic biology approaches, such as streamlined lambda Red recombineering and Gibson Isothermal Assembly, we integrated genetic circuits pT7L123, Repr-ts-1 and pLT7pol encoding the lysis genes of bacteriophages MS2, ΦX174 and lambda, the thermosensitive repressor and the T7 RNA polymerase into the E. coli chromosome. In this system, T7 RNA polymerase regulated by the thermosensitive repressor drives the expression of the phage lysis genes. We showed that T7 RNA polymerase significantly increases efficiency of cell lysis and transfer of the plasmid and bacterial artificial chromosome-encoded DNA from the lysed E. coli into B. subtilis. The T7 RNA polymerase-driven inducible cell lysis system is suitable for the efficient cell lysis and transfer of the DNA engineered in E. coli to other naturally competent hosts, such as B. subtilis.

Description
Keywords
Bacillus subtilis, Bacteriophages, DNA Transformation Competence, DNA, Bacterial, DNA-Directed RNA Polymerases, Escherichia coli, Plasmids, Synthetic Biology, Viral Proteins
Journal Title
Microbial Biotechnology
Conference Name
Journal ISSN
1751-7907
1751-7915
Volume Title
Publisher
Wiley
Sponsorship
Engineering and Physical Sciences Research Council (EP/L011573/1)
This work was supported by the UK Engineering and Physical Sciences Research Council (EPSRC), OpenPlant Fund and SynBio Fund.