Abstract
The properties of Escherichia coli mutant D2-47LT indicate that it is temperature-sensitive for a protein required for the initiation of chromosome replication. The results of several different experiments are consistent with this hypothesis, and no support was found for the alternate hypotheses tested. Although the strain is usually unable to initiate replication at 42 C, some of the initiation proteins are apparently synthesized at the restrictive temperature. This can cause initiation on partially replicated, but not completed, chromosomes. It appears that the temperature-sensitive protein is required for initiation on completed chromosomes.
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Selected References
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- Abe M., Tomizawa J. Replication of the escherichia coli K12 chromosome. Proc Natl Acad Sci U S A. 1967 Nov;58(5):1911–1918. doi: 10.1073/pnas.58.5.1911. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Billen D. Replication of the bacterial chromosome: location of new initiation sites after irradiation. J Bacteriol. 1969 Mar;97(3):1169–1175. doi: 10.1128/jb.97.3.1169-1175.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bonhoeffer F. DNA transfer and DNA synthesis during bacterial conjugation. Z Vererbungsl. 1966;98(2):141–149. doi: 10.1007/BF00897186. [DOI] [PubMed] [Google Scholar]
- CERIOTTI G. A microchemical determination of desoxyribonucleic acid. J Biol Chem. 1952 Sep;198(1):297–303. [PubMed] [Google Scholar]
- Caro L. G., Berg C. M. Chromosome replication in some strains of Escherichia coli K12. Cold Spring Harb Symp Quant Biol. 1968;33:559–573. doi: 10.1101/sqb.1968.033.01.063. [DOI] [PubMed] [Google Scholar]
- Cerdá-Olmedo E., Hanawalt P. C., Guerola N. Mutagenesis of the replication point by nitrosoguanidine: map and pattern of replication of the Escherichia coli chromosome. J Mol Biol. 1968 May 14;33(3):705–719. doi: 10.1016/0022-2836(68)90315-x. [DOI] [PubMed] [Google Scholar]
- Espardellier-Joset F., Harriman P. D., Gots J., Marcovich H. Localisation de l'origine de réplication végétative chez une souche Hfr d'Escherichia coli K 12. C R Acad Sci Hebd Seances Acad Sci D. 1967 Mar 13;264(11):1541–1544. [PubMed] [Google Scholar]
- Fangman W. L., Novick A. Characterization of two bacterial mutants with temperature-sensitive synthesis of DNA. Genetics. 1968 Sep;60(1):1–17. doi: 10.1093/genetics/60.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gross J. D., Karamata D., Hempstead P. G. Temperature-sensitive mutants of B. subtilis defective in DNA synthesis. Cold Spring Harb Symp Quant Biol. 1968;33:307–312. doi: 10.1101/sqb.1968.033.01.034. [DOI] [PubMed] [Google Scholar]
- Helmstetter C., Cooper S., Pierucci O., Revelas E. On the bacterial life sequence. Cold Spring Harb Symp Quant Biol. 1968;33:809–822. doi: 10.1101/sqb.1968.033.01.093. [DOI] [PubMed] [Google Scholar]
- Hirota Y., Ryter A., Jacob F. Thermosensitive mutants of E. coli affected in the processes of DNA synthesis and cellular division. Cold Spring Harb Symp Quant Biol. 1968;33:677–693. doi: 10.1101/sqb.1968.033.01.077. [DOI] [PubMed] [Google Scholar]
- Kohiyama M. DNA synthesis in temperature sensitive mutants of Escherichia coli. Cold Spring Harb Symp Quant Biol. 1968;33:317–324. doi: 10.1101/sqb.1968.033.01.036. [DOI] [PubMed] [Google Scholar]
- LARK K. G., REPKO T., HOFFMAN E. J. THE EFFECT OF AMINO ACID DEPRIVATION ON SUBSEQUENT DEOXYRIBONUCLEIC ACID REPLICATION. Biochim Biophys Acta. 1963 Sep 17;76:9–24. [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- Lark K. G. Regulation of chromosome replication and segregation in bacteria. Bacteriol Rev. 1966 Mar;30(1):3–32. doi: 10.1128/br.30.1.3-32.1966. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MAALOE O., HANAWALT P. C. Thymine deficiency and the normal DNA replication cycle. I. J Mol Biol. 1961 Apr;3:144–155. doi: 10.1016/s0022-2836(61)80041-7. [DOI] [PubMed] [Google Scholar]
- MENNIGMANN H. D., SZYBALSKI W. Molecular mechanism of thymine-less death. Biochem Biophys Res Commun. 1962 Nov 27;9:398–404. doi: 10.1016/0006-291x(62)90023-2. [DOI] [PubMed] [Google Scholar]
- Neuhard J. Studies on the acid-soluble nucleotide pool in thymine-requiring mutants of Escherichia coli during thymine starvation. 3. On the regulation of the deoxyadenosine triphosphate and deoxycytidine triphosphate pools of Escherichia coli. Biochim Biophys Acta. 1966 Oct 24;129(1):104–115. doi: 10.1016/0005-2787(66)90012-8. [DOI] [PubMed] [Google Scholar]
- PRITCHARD R. H., LARK K. G. INDUCTION OF REPLICATION BY THYMINE STARVATION AT THE CHROMOSOME ORIGIN IN ESCHERICHIA COLI. J Mol Biol. 1964 Aug;9:288–307. doi: 10.1016/s0022-2836(64)80208-4. [DOI] [PubMed] [Google Scholar]
- Pauling C., Hanawalt P. Nonconservative DNA replication in bacteria after thymine starvation. Proc Natl Acad Sci U S A. 1965 Dec;54(6):1728–1735. doi: 10.1073/pnas.54.6.1728. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rupp W. D., Howard-Flanders P. Discontinuities in the DNA synthesized in an excision-defective strain of Escherichia coli following ultraviolet irradiation. J Mol Biol. 1968 Jan 28;31(2):291–304. doi: 10.1016/0022-2836(68)90445-2. [DOI] [PubMed] [Google Scholar]
- Summers W. C., Szybalski W. Gamma-irradiation of deoxyribonucleic acid in dilute solutions. I. A sensitive method for detection of single-strand breaks in polydisperse DNA samples. J Mol Biol. 1967 May 28;26(1):107–123. doi: 10.1016/0022-2836(67)90264-1. [DOI] [PubMed] [Google Scholar]
- Vielmetter W., Messer W., Schütte A. Growth direction and segregation of the E. coli chromosome. Cold Spring Harb Symp Quant Biol. 1968;33:585–598. doi: 10.1101/sqb.1968.033.01.065. [DOI] [PubMed] [Google Scholar]
- Wolf B., Newman A., Glaser D. A. On the origin and direction of replication of the Escherichia coli K12 chromosome. J Mol Biol. 1968 Mar 28;32(3):611–629. doi: 10.1016/0022-2836(68)90346-x. [DOI] [PubMed] [Google Scholar]
