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Literature DB >> 4276057

R62, a naturally occurring hybrid R plasmid.

Abstract

R62, a naturally occurring R factor, was shown to be a single deoxyribonucleic acid molecule composed of polynucleotide sequences typical of I group plasmids and also sequences typical of the N group. It determined I pili and belonged to the Ialpha compatibility group. Although compatible with plasmids of group N, R62 showed complex genetic reactions with N plasmids which are described and interpreted. It is concluded that R62 was the product of illegitimate recombination between an I group and an N group plasmid.

Entities: Chemical

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Year: 1974 PMID： 4276057 PMCID： PMC245584 DOI： 10.1128/jb.119.1.144-151.1974

Source DB: PubMed Journal: J Bacteriol ISSN： 0021-9193 Impact factor: 3.490

28 in total

7. Supercoiled circular DNA-protein complex in Escherichia coli: purification and induced conversion to an opern circular DNA form.

Authors: D B Clewell; D R Helinski
Journal: Proc Natl Acad Sci U S A Date: 1969-04 Impact factor: 11.205

R62, a naturally occurring hybrid R plasmid.

1. Superinfection with R factors by transduction in Escherichia coli and Salmonella typhimurium.

2. Covert fi- R factors in fi+ R+ strains of bacteria.

3. Characterization of multiple circular DNA forms of colicinogenic factor E-1 from Proteus mirabilis.

4. Filamentous phages specific for the I sex factor.

5. Sex pili and the classification of sex factors in the enterobacteriaceae.

6. Vegetative bacteriophage lambda-DNA. II. Physical characterization and replication.

7. Supercoiled circular DNA-protein complex in Escherichia coli: purification and induced conversion to an opern circular DNA form.

8. Penicillinase synthesis controlled by infectious R factors in Enterobacteriaceae.

9. Composite circular forms of R factor deoxyribonucleic acid molecules.

10. Specific labeling and physical characterization of R-factor deoxyribonucleic acid in Escherichia coli.

1. Analytical isoelectric focusing of R factor-determined beta-lactamases: correlation with plasmid compatibility.

2. Compatibility of pTM89, a new F-like R factor, and of derivative plasmids.

3. Susceptibility of a hybrid plasmid to excision of genetic material.

4. Transconjugant analysis: limitations on the use of sequence-specific endonucleases for plasmid identification.

5. Five control systems preventing transfer of Escherichia coli K-12 sex factor F.

6. Plasmid-controlled resistance to copper in Escherichia coli.

7. Formation of type II F-primes from unstable Hfrs and their recA-independent conversion to other F-prime types.

8. Isolation of cryptic plasmid deoxyribonucleic acid from Kanagawa-positive strains of Vibrio parahaemolyticus.

9. Inhibition of Flac transfer by the fin+ I-like plasmid R62.

10. Plasmid R46 provides a function that promotes recA-independent deletion, fusion and resolution of replicon.