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Literature DB >> 6092872

dnaA suppressor (dasF) mutants of Escherichia coli are stable DNA replication (sdrA/rnh) mutants.

Abstract

The possible allelic relationship between dasF (dnaA suppressor) and sdrA/rnh (stable DNA replication/RNase H) mutations was examined. dasF mutations could not only suppress various dnaA(ts) mutations, but also the insertional inactivation of the dnaA gene or deletion of the oriC sequence, as could sdrA mutations. dasF mutants were found to exhibit the stable DNA replication phenotype, and the sensitivity to rich media, of sdrA mutants. The dasF and sdrA mutations were mapped very closely between metD and proA on the E. coli genetic map. The mutations were recessive to the wild-type allele for all the above phenotypes. It was concluded that dasF is allelic to sdrA/mh.

Entities: Gene Species

Mesh：

Substances：

Year: 1984 PMID： 6092872 DOI： 10.1007/bf00328070

Source DB: PubMed Journal: Mol Gen Genet ISSN： 0026-8925

25 in total

1. Characterization of the replication of Escherichia coli DNA in the absence of protein synthesis: stable DNA replication.

Authors: T Kogoma; K G Lark
Journal: J Mol Biol Date: 1975-05-15 Impact factor: 5.469

2. A novel Escherichia coli mutant capable of DNA replication in the absence of protein synthesis.

Authors: T Kogoma
Journal: J Mol Biol Date: 1978-05-05 Impact factor: 5.469

3. Induction of UV-resistant DNA replication in Escherichia coli: induced stable DNA replication as an SOS function.

Authors: T Kogoma; T A Torrey; M J Connaughton
Journal: Mol Gen Genet Date: 1979-10-02

4. DNA replication in Escherihia coli: replication in absence of protein synthesis after replication inhibition.

Authors: T Kogoma; K G Lark
Journal: J Mol Biol Date: 1970-09-14 Impact factor: 5.469

5. Novel F prime factors able to replicate in Escherichia coli Hfr strains.

Authors: S Hiraga
Journal: Proc Natl Acad Sci U S A Date: 1976-01 Impact factor: 11.205

Review 6. Linkage map of Escherichia coli K-12, edition 7.

Authors: B J Bachmann
Journal: Microbiol Rev Date: 1983-06

7. RNase H confers specificity in the dnaA-dependent initiation of replication at the unique origin of the Escherichia coli chromosome in vivo and in vitro.

Authors: T Ogawa; G G Pickett; T Kogoma; A Kornberg
Journal: Proc Natl Acad Sci U S A Date: 1984-02 Impact factor: 11.205

8. Suppression of the DnaA phenotype by mutations in the rpoB cistron of ribonucleic acid polymerase in Salmonella typhimurium and Escherichia coli.

Authors: M M Bagdasarian; M Izakowska; M Bagdasarian
Journal: J Bacteriol Date: 1977-05 Impact factor: 3.490

9. Suppression of Escherichia coli dnaA46 mutations by integration of plasmid R100.1. derivatives: constraints imposed by the replication terminus.

Authors: J Louarn; J Patte; J M Louarn
Journal: J Bacteriol Date: 1982-08 Impact factor: 3.490

10. Purified dnaA protein in initiation of replication at the Escherichia coli chromosomal origin of replication.

Authors: R S Fuller; A Kornberg
Journal: Proc Natl Acad Sci U S A Date: 1983-10 Impact factor: 11.205

25 in total

1. A combination of RNase H (rnh) and recBCD or sbcB mutations in Escherichia coli K12 adversely affects growth.

Authors: M Itaya; R J Crouch
Journal: Mol Gen Genet Date: 1991-07

2. Correlation of activity with phenotypes of Escherichia coli partial function mutants of rnh, the gene encoding RNase H.

Authors: M Itaya; R J Crouch
Journal: Mol Gen Genet Date: 1991-07

3. Overexpression of RNase H partially complements the growth defect of an Escherichia coli delta topA mutant: R-loop formation is a major problem in the absence of DNA topoisomerase I.

Authors: M Drolet; P Phoenix; R Menzel; E Massé; L F Liu; R J Crouch
Journal: Proc Natl Acad Sci U S A Date: 1995-04-11 Impact factor: 11.205

dnaA suppressor (dasF) mutants of Escherichia coli are stable DNA replication (sdrA/rnh) mutants.

1. Characterization of the replication of Escherichia coli DNA in the absence of protein synthesis: stable DNA replication.

2. A novel Escherichia coli mutant capable of DNA replication in the absence of protein synthesis.

3. Induction of UV-resistant DNA replication in Escherichia coli: induced stable DNA replication as an SOS function.

4. DNA replication in Escherihia coli: replication in absence of protein synthesis after replication inhibition.

5. Novel F prime factors able to replicate in Escherichia coli Hfr strains.

Review 6. Linkage map of Escherichia coli K-12, edition 7.

7. RNase H confers specificity in the dnaA-dependent initiation of replication at the unique origin of the Escherichia coli chromosome in vivo and in vitro.

8. Suppression of the DnaA phenotype by mutations in the rpoB cistron of ribonucleic acid polymerase in Salmonella typhimurium and Escherichia coli.

9. Suppression of Escherichia coli dnaA46 mutations by integration of plasmid R100.1. derivatives: constraints imposed by the replication terminus.

10. Purified dnaA protein in initiation of replication at the Escherichia coli chromosomal origin of replication.

1. A combination of RNase H (rnh) and recBCD or sbcB mutations in Escherichia coli K12 adversely affects growth.

2. Correlation of activity with phenotypes of Escherichia coli partial function mutants of rnh, the gene encoding RNase H.

3. Overexpression of RNase H partially complements the growth defect of an Escherichia coli delta topA mutant: R-loop formation is a major problem in the absence of DNA topoisomerase I.

4. Membrane regulation of the chromosomal replication activity of E.coli DnaA requires a discrete site on the protein.

Review 5. Linkage map of Escherichia coli K-12, edition 10: the traditional map.

Review 6. Linkage map of Escherichia coli K-12, edition 8.

7. Membrane regulation of the chromosomal replication activity of E. coli DnaA requires a discrete site on the protein.

8. Requirement of the Escherichia coli dnaA gene function for ori-2-dependent mini-F plasmid replication.

9. Genetic analysis of constitutive stable DNA replication in rnh mutants of Escherichia coli K12.

10. Function of ribonuclease H in initiation of DNA replication in Escherichia coli K-12.