Abstract
A number of pMB1 derivatives provide a trans-acting function that can suppress lethal runaway replication of a temperature-sensitive copy-number mutant of NTP1. Deletion analysis indicates that the region of the pMB1 genome that contains the rop gene is required for this suppression. Mutant derivatives of the temperature-sensitive copy-number mutant plasmid whose conditional lethal phenotype is not suppressed in trans by the region encoding the rop gene have been isolated. These rop-insensitive derivatives contain single nucleotide changes within the RNA I coding region.
Full text
PDFImages in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Bolivar F., Rodriguez R. L., Betlach M. C., Boyer H. W. Construction and characterization of new cloning vehicles. I. Ampicillin-resistant derivatives of the plasmid pMB9. Gene. 1977;2(2):75–93. doi: 10.1016/0378-1119(77)90074-9. [DOI] [PubMed] [Google Scholar]
- Cesareni G., Muesing M. A., Polisky B. Control of ColE1 DNA replication: the rop gene product negatively affects transcription from the replication primer promoter. Proc Natl Acad Sci U S A. 1982 Oct;79(20):6313–6317. doi: 10.1073/pnas.79.20.6313. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cesareni G. The target of the negative regulator of pMB1 replication overlaps with part of the repressor coding sequence. Mol Gen Genet. 1981;184(1):40–45. doi: 10.1007/BF00271192. [DOI] [PubMed] [Google Scholar]
- Chang A. C., Cohen S. N. Construction and characterization of amplifiable multicopy DNA cloning vehicles derived from the P15A cryptic miniplasmid. J Bacteriol. 1978 Jun;134(3):1141–1156. doi: 10.1128/jb.134.3.1141-1156.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Conrad S. E., Campbell J. L. Role of plasmid-coded RNA and ribonuclease III in plasmid DNA replication. Cell. 1979 Sep;18(1):61–71. doi: 10.1016/0092-8674(79)90354-4. [DOI] [PubMed] [Google Scholar]
- Conrad S. E., Wold M., Campbell J. L. Origin and direction of DNA replication of plasmid RSF1030. Proc Natl Acad Sci U S A. 1979 Feb;76(2):736–740. doi: 10.1073/pnas.76.2.736. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dagert M., Ehrlich S. D. Prolonged incubation in calcium chloride improves the competence of Escherichia coli cells. Gene. 1979 May;6(1):23–28. doi: 10.1016/0378-1119(79)90082-9. [DOI] [PubMed] [Google Scholar]
- Garfinkel L. I., Periasamy M., Nadal-Ginard B. Cloning and characterization of cDNA sequences corresponding to myosin light chains 1, 2, and 3, troponin-C, troponin-T, alpha-tropomyosin, and alpha-actin. J Biol Chem. 1982 Sep 25;257(18):11078–11086. [PubMed] [Google Scholar]
- Grindley J. N., Nakada D. The nucleotide sequence of the replication origin of plasmid NTP1. Nucleic Acids Res. 1981 Sep 11;9(17):4355–4366. doi: 10.1093/nar/9.17.4355. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Itoh T., Tomizawa J. Formation of an RNA primer for initiation of replication of ColE1 DNA by ribonuclease H. Proc Natl Acad Sci U S A. 1980 May;77(5):2450–2454. doi: 10.1073/pnas.77.5.2450. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lacatena R. M., Cesareni G. Base pairing of RNA I with its complementary sequence in the primer precursor inhibits ColE1 replication. Nature. 1981 Dec 17;294(5842):623–626. doi: 10.1038/294623a0. [DOI] [PubMed] [Google Scholar]
- Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
- Morita M., Oka A. The structure of a transcriptional unit on colicin E1 plasmid. Eur J Biochem. 1979 Jul;97(2):435–443. doi: 10.1111/j.1432-1033.1979.tb13131.x. [DOI] [PubMed] [Google Scholar]
- Moser D. R., Campbell J. L. Characterization and complementation of pMB1 copy number mutant: effect of RNA I gene dosage on plasmid copy number and incompatibility. J Bacteriol. 1983 May;154(2):809–818. doi: 10.1128/jb.154.2.809-818.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Selzer G., Som T., Itoh T., Tomizawa J. The origin of replication of plasmid p15A and comparative studies on the nucleotide sequences around the origin of related plasmids. Cell. 1983 Jan;32(1):119–129. doi: 10.1016/0092-8674(83)90502-0. [DOI] [PubMed] [Google Scholar]
- Som T., Tomizawa J. Origin of replication of Escherichia coli plasmid RSF 1030. Mol Gen Genet. 1982;187(3):375–383. doi: 10.1007/BF00332615. [DOI] [PubMed] [Google Scholar]
- Som T., Tomizawa J. Regulatory regions of ColE1 that are involved in determination of plasmid copy number. Proc Natl Acad Sci U S A. 1983 Jun;80(11):3232–3236. doi: 10.1073/pnas.80.11.3232. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tomizawa J., Itoh T. Plasmid ColE1 incompatibility determined by interaction of RNA I with primer transcript. Proc Natl Acad Sci U S A. 1981 Oct;78(10):6096–6100. doi: 10.1073/pnas.78.10.6096. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tomizawa J., Itoh T., Selzer G., Som T. Inhibition of ColE1 RNA primer formation by a plasmid-specified small RNA. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1421–1425. doi: 10.1073/pnas.78.3.1421. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Twigg A. J., Sherratt D. Trans-complementable copy-number mutants of plasmid ColE1. Nature. 1980 Jan 10;283(5743):216–218. doi: 10.1038/283216a0. [DOI] [PubMed] [Google Scholar]
- Vieira J., Messing J. The pUC plasmids, an M13mp7-derived system for insertion mutagenesis and sequencing with synthetic universal primers. Gene. 1982 Oct;19(3):259–268. doi: 10.1016/0378-1119(82)90015-4. [DOI] [PubMed] [Google Scholar]
- Wong E. M., Muesing M. A., Polisky B. Temperature-sensitive copy number mutants of CoIE1 are located in an untranslated region of the plasmid genome. Proc Natl Acad Sci U S A. 1982 Jun;79(11):3570–3574. doi: 10.1073/pnas.79.11.3570. [DOI] [PMC free article] [PubMed] [Google Scholar]