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Literature DB >> 765740

Strains of Escherichia coli diploid for the chromosomal origin of DNA replication.

Abstract

F' strains of E. coli have been isolated which are merodiploid for various chromosomal segments between 66 and 78 minutes. Strains diploid for the chromosomal DNA between the genes bgl and mtl grow slowly, have a reduced DNA/mass and an increased cell size. These properties could result if the chromosomal replication origin and a second, extrachromosomal, copy of the origin (located in this case on the F') were to compete for a substance required to initiate replication. We therefore suggest that these strains are diploid for the chromosomal origin of replication and that, therefore, the origin is located between bgl and mtl, that is between 71 and 73 minutes on the E. coli chromosome.

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Year: 1975 PMID： 765740 DOI： 10.1007/bf00269427

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

16 in total

1. Deoxyribonucleic acid and outer membrane: strains diploid for the oriC region show elevated levels of deoxyribonucleic acid-binding protein and evidence for specific binding of the oriC region to outer membrane.

Authors: H Wolf-Watz; M Masters
Journal: J Bacteriol Date: 1979-10 Impact factor: 3.490

6. Identification of a biochemically unique DNA-membrane interaction involving the Escherichia coli origin of replication.

Authors: B L Craine; C S Rupert
Journal: J Bacteriol Date: 1978-04 Impact factor: 3.490

7. Replication of Fpoh+ plasmid in mafA mutants of Escherichia coli defective in plasmid maintenance.

Authors: C Wada; T Yura; S Hiraga
Journal: Mol Gen Genet Date: 1977-04-29

8. Genetic mapping of the chromosomal replication origin of Salmonella typhimurium.

Authors: K Joh; S Hiraga
Journal: J Bacteriol Date: 1979-05 Impact factor: 3.490

9. Origin of replication, oriC, of the Escherichia coli chromosome: mapping of genes relative to R.EcoRI cleavage sites in the oriC region.

Authors: K von Meyenburg; F G Hansen; L D Nielsen; P Jørgensen
Journal: Mol Gen Genet Date: 1977-12-14

10. Cloning and mapping of the replication origin of Escherichia coli.

Authors: S Yasuda; Y Hirota
Journal: Proc Natl Acad Sci U S A Date: 1977-12 Impact factor: 11.205

Strains of Escherichia coli diploid for the chromosomal origin of DNA replication.

1. More precise mapping of the replication origin in Escherichia coli K-12.

2. Origin and sequence of chromosome replication in Escherichia coli.

3. Conjugational complementation analysis of transfer-deficient mutants of Flac in Escherichia coli.

4. Evidence for the bidirectional replications of the Escherichia coli chromosome.

5. Origin and direction of replication of the chromosome of E. coli B-r.

6. Formation of merodiploids in matings with a class of Rec- recipient strains of Escherichia coli K12.

7. On the bacterial life sequence.

8. An improved fluorometric assay for DNA.

9. Escherichia coli mutants temperature-sensitive for DNA synthesis.

10. Isolation and characterization of mutations affecting the transport of hexose phosphates in Escherichia coli.

1. Deoxyribonucleic acid and outer membrane: strains diploid for the oriC region show elevated levels of deoxyribonucleic acid-binding protein and evidence for specific binding of the oriC region to outer membrane.

2. A DNA fragment containing the origin of replication of the Escherichia coli chromosome.

3. Map location of the Escherichia coli origin of replication.

4. Map position of the replication origin on the E. coli chromosome.

5. Control of the initiation of DNA replication in Escherichia coli. II. Function of the dnaA product.

6. Identification of a biochemically unique DNA-membrane interaction involving the Escherichia coli origin of replication.

7. Replication of Fpoh+ plasmid in mafA mutants of Escherichia coli defective in plasmid maintenance.

8. Genetic mapping of the chromosomal replication origin of Salmonella typhimurium.

9. Origin of replication, oriC, of the Escherichia coli chromosome: mapping of genes relative to R.EcoRI cleavage sites in the oriC region.

10. Cloning and mapping of the replication origin of Escherichia coli.