Summary
The effects of the restriction system of Bacillus subtilis strain M on plasmid transformation were studied. Plasmid pHV1401 DNA prepared from B. subtilis transformed the restriction-proficient M strain 100 times more efficiently than the DNA prepared from Escherichia coli, while the two DNA preparations transformed restriction-deficient derivatives of that strain with similar efficiencies. This indicates that transformation with pHV1401 is sensitive to the M restriction system. pHV1401 contains three CTCGAG (XhoI sites). Successive removal of these abolished the effect of restriction. This indicates that the XhoI sites are the targets for the M restriction system.
Abbreviations
- Apr :
-
resistance to ampicillin
- Cmr :
-
resistance to chloramphenicol
- R/M:
-
restriction and modification
- Tcr :
-
resistance to tetracycline
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Communicated by W. Gajewski
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Bron, S., Jannière, L. & Ehrlich, S.D. Restriction and modification in Bacillus subtilis Marburg 168: Target sites and effects on plasmid transformation. Mol Gen Genet 211, 186–189 (1988). https://doi.org/10.1007/BF00338412
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DOI: https://doi.org/10.1007/BF00338412