Abstract
Mitomycin C treatment of Escherichia coli K-12 cells containing the nonconjugative plasmid CloDF13 resulted in inhibition of host chromosome protein synthesis and a high rate of synthesis of two CloDF13-specified proteins whose molecular weights correspond to cloacin and immunity protein. Five molecules of immunity protein were synthesized for each cloacin DF13 molecule. Mitomycin C-treated cells containing a copy mutant of CloDF13 made three to four times as much of each protein as cells containing wild-type CloDF13. CloDF13 plasmids that contained the transposon Tn1 were isolated. Two did not induce after mitomycin C treatment, failing both to inhibit host cell synthesis and to produce the two new proteins. In minicells, they showed reduced CloDF13-specified protein synthesis and produced three Tn1-specified proteins.
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- Adler H. I., Fisher W. D., Cohen A., Hardigree A. A. MINIATURE escherichia coli CELLS DEFICIENT IN DNA. Proc Natl Acad Sci U S A. 1967 Feb;57(2):321–326. doi: 10.1073/pnas.57.2.321. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bachmann B. J., Low K. B., Taylor A. L. Recalibrated linkage map of Escherichia coli K-12. Bacteriol Rev. 1976 Mar;40(1):116–167. doi: 10.1128/br.40.1.116-167.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Clewell D. B., Helinski D. R. Effect of growth conditions on the formation of the relaxation complex of supercoiled ColE1 deoxyribonucleic acid and protein in Escherichia coli. J Bacteriol. 1972 Jun;110(3):1135–1146. doi: 10.1128/jb.110.3.1135-1146.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Durkacz B. W., Kennedy C. K., Sherratt D. J. Plasmid replication and the induced synthesis of colicins E1 and E2 in Escherichia coli. J Bacteriol. 1974 Mar;117(3):940–946. doi: 10.1128/jb.117.3.940-946.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Guerry P., LeBlanc D. J., Falkow S. General method for the isolation of plasmid deoxyribonucleic acid. J Bacteriol. 1973 Nov;116(2):1064–1066. doi: 10.1128/jb.116.2.1064-1066.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jakes K., Zinder N. D., Boon T. Purification and properties of colicin E3 immunity protein. J Biol Chem. 1974 Jan 25;249(2):438–444. [PubMed] [Google Scholar]
- Kool A. J., Nijkamp H. J. Isolation and characterization of a copy mutant of the bacteriocinogenic plasmid Clo DF13. J Bacteriol. 1974 Nov;120(2):569–578. doi: 10.1128/jb.120.2.569-578.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kool A. J., Pols C., Nijkamp H. J. Bacteriocinogenic Clo DF13 minicells of Escherichia coli synthesize a protein that accounts for immunity to bacteriocin Clo DF13: purification and characterization of the immunity protein. Antimicrob Agents Chemother. 1975 Jul;8(1):67–75. doi: 10.1128/aac.8.1.67. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kool A. J., Pranger M., Nijkamp H. J. Proteins synthesized by a non-induced bacteriocinogenic factor in minicells of Escherichia coli. Mol Gen Genet. 1972;115(4):314–323. doi: 10.1007/BF00333170. [DOI] [PubMed] [Google Scholar]
- Kool A. J., van Zeben M. S., Nijkamp H. J. Identification of messenger ribonucleic acids and proteins synthesized by the bacteriocinogenic factor Clo DF13 in purified minicells of Escherichia coli. J Bacteriol. 1974 Apr;118(1):213–224. doi: 10.1128/jb.118.1.213-224.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- OZEKI H., STOCKER B. A., DE MARGERIE H. Production of colicine by single bacteria. Nature. 1959 Aug 1;184:337–339. doi: 10.1038/184337a0. [DOI] [PubMed] [Google Scholar]
- Radloff R., Bauer W., Vinograd J. A dye-buoyant-density method for the detection and isolation of closed circular duplex DNA: the closed circular DNA in HeLa cells. Proc Natl Acad Sci U S A. 1967 May;57(5):1514–1521. doi: 10.1073/pnas.57.5.1514. [DOI] [PMC free article] [PubMed] [Google Scholar]
- So M., Gill R., Falkow S. The generation of a ColE1-Apr cloning vehicle which allows detection of inserted DNA. Mol Gen Genet. 1975 Dec 30;142(3):239–249. doi: 10.1007/BF00425649. [DOI] [PubMed] [Google Scholar]
- Tyler J., Sherratt D. J. Synthesis of E colicins in Escherichia coli. Mol Gen Genet. 1975 Oct 22;140(4):349–353. doi: 10.1007/BF00267325. [DOI] [PubMed] [Google Scholar]
- de Graaf F. K., Tieze G. A., Wendelaar Bonga S., Stouthamer A. H. Purification and genetic determination of bacteriocin production in Enterobacter cloacae. J Bacteriol. 1968 Feb;95(2):631–640. doi: 10.1128/jb.95.2.631-640.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]