Literature DB >> 4943172

Non-chromosomal antibiotic resistance in bacteria. 3. Isolation of the discrete transfer unit of the R-factor R1.

S N Cohen, C A Miller.   

Abstract

A covalently-closed circular DNA species, banding at a buoyant density of rho = 1.709 g/cm(3) in CsCl, has been identified in antibiotic-sensitive colonies of E. coli strain AB2463 (rec A(-)) after mating with a Proteus mirabilis strain that carries the R-factor, R1. This plasmid, which represents a stable segregant of R1 that has lost all of the drug resistance determinants present on the parent R-factor but which has retained its ability to be transferred by conjugation, fulfills the functional definition of the R-factor transfer unit (RTF).

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Year:  1970        PMID： 4943172      PMCID： PMC283237          DOI： 10.1073/pnas.67.2.510

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  17 in total

1.  Infective heredity of multiple drug resistance in bacteria.

Authors:  T WATANABE
Journal:  Bacteriol Rev       Date:  1963-03

2.  Episome-mediated transfer of drug resistance in Enterobacteriaceae. I. Transfer of resistance factors by conjugation.

Authors:  T WATANABE; T FUKASAWA
Journal:  J Bacteriol       Date:  1961-05       Impact factor: 3.490

3.  Determination of the base composition of deoxyribonucleic acid from its buoyant density in CsCl.

Authors:  C L SCHILDKRAUT; J MARMUR; P DOTY
Journal:  J Mol Biol       Date:  1962-06       Impact factor: 5.469

4.  Circular DNA forms of colicinogenic factors E1, E2 and E3 from Escherichia coli.

Authors:  M Bazaral; D R Helinski
Journal:  J Mol Biol       Date:  1968-09-14       Impact factor: 5.469

5.  Non-chromosomal antibiotic resistance in bacteria. II. Molecular nature of R-factors isolated from Proteus mirabilis and Escherichia coli.

Authors:  S N Cohen; C A Miller
Journal:  J Mol Biol       Date:  1970-06-28       Impact factor: 5.469

6.  Multiple molecular species of circular R-factor DNA isolated from Escherichia coli.

Authors:  S N Cohen; C A Miller
Journal:  Nature       Date:  1969-12-27       Impact factor: 49.962

7.  Characterization of a transfer factor associated with drug resistance in Salmonella typhimurium.

Authors:  E S Anderson; M J Lewis
Journal:  Nature       Date:  1965-11-27       Impact factor: 49.962

8.  The relation of resistance transfer factors to the F-factor (sex-factor) of Escherichia coli K12.

Authors:  E Meynell; N Datta
Journal:  Genet Res       Date:  1966-02       Impact factor: 1.588

9.  Episome-mediated transfer of drug resistance in Enterobacteriaceae. III. Transduotion of resistance factors.

Authors:  T WATANABE; T FUKASAWA
Journal:  J Bacteriol       Date:  1961-08       Impact factor: 3.490

10.  Physical and topological properties of circular DNA.

Authors:  J Vinograd; J Lebowitz
Journal:  J Gen Physiol       Date:  1966-07       Impact factor: 4.086
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  26 in total

1.  Extrachromosomal deoxyribonucleic acid in R factor-harboring Enterobacteriaceae.

Authors:  J K Moller; A L Bak; C Christiansen; G Christiansen; A Stenderup
Journal:  J Bacteriol       Date:  1976-02       Impact factor: 3.490

2.  Site specific recA--independent recombination between bacterial plasmids: involvement of palindromes at the recombinational loci.

Authors:  D J Kopecko; S N Cohen
Journal:  Proc Natl Acad Sci U S A       Date:  1975-04       Impact factor: 11.205

3.  The isolation of IS1 and IS2 DNA.

Authors:  F Schmidt; J Besemer; P Starlinger
Journal:  Mol Gen Genet       Date:  1976-05-07

4.  The contruction and replication properties of hybrid plasmids composed of the r-determinant of R100.1 and the plasmids pCRI and pSC201.

Authors:  D Lane; M Chandler; L Silver; A Bruschi; L Caro
Journal:  Mol Gen Genet       Date:  1979-01-11

5.  Involvement of IS1 in the dissociation of the r-determinant and RTF components of the plasmid R100.1.

Authors:  M Chandler; B Allet; E Gallay; E Boy de La Tour; L Caro
Journal:  Mol Gen Genet       Date:  1977-06-24

6.  Origin and direction of replication of the drug resistance plasmid R100.1 and of a resistance transfer factor derivative in synchronized cultures.

Authors:  L Silver; M Chandler; E B de la Tour; L Caro
Journal:  J Bacteriol       Date:  1977-09       Impact factor: 3.490

7.  Suppression of an Escherichia coli dnaA mutation by the integrated R factor R100.1: generation of small plasmids after integration.

Authors:  M Chandler; L Silver; J Frey; L Caro
Journal:  J Bacteriol       Date:  1977-04       Impact factor: 3.490

8.  Properties of the relaxation complex of supercoiled deoxyribonucleic acid and protein of R plasmid NR1 in Escherichia coli.

Authors:  D D Womble; R H Rownd
Journal:  J Bacteriol       Date:  1977-07       Impact factor: 3.490

9.  Extrachromosomal deoxyribonucleic acid in different enterobacteria.

Authors:  C Christiansen; G Christiansen; A L Bak; A Stenderup
Journal:  J Bacteriol       Date:  1973-04       Impact factor: 3.490

10.  Positive and negative control of R-factor replication in Proteus mirabilis.

Authors:  J D Punch; D J Kopecko
Journal:  J Bacteriol       Date:  1972-01       Impact factor: 3.490
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