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J Bacteriol. Aug 1977; 131(2): 699–701.
PMCID: PMC235484

Isolation and characterization of four types of plasmids from Bacillus subtilis (natto).

Abstract

Covalently closed circular deoxyribonucleic acids were found in 10 strains of Bacillus natto. The plasmids could be classified into four types on the basis of the molecular weights as well as the patterns in agarose gel electrophoresis after digestion with restriction endonucleases: (i) plasmids (seven were detected) with a molecular weight of 3.6 X 10(6); (ii) plasmids (two were detected) with a molecular weight of 4.0 X 10(6); (iii) plasmids (eight were detected) with a molecular weight of about 34 X 10(6); and (iv), a plasmid with an approximate molecular weight of 46 X 10(6). Out of the 10 plasmid-carrying strains, 6 (IFO3009, IFO3013, IFO3335, IFO13169, IAM1143, and IAM1207) harbored both type 1 and 3 plasmids; 2 (IAM1114 and IAM1168) harbored both type 2 and 3 plasmids, and IFO3936 and IAM1163 carried type 1 and 4 plasmids, respectively.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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