Difference between revisions of "PMID:6808961"

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{|  id="X50a2d5c27e1e5"  class=" tableEdit PMID_info_table" 
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'''Brunner, DP , Graham, GS  and Treick, RW '''  (1982) Exchange of colicin receptor capacity between strains of Escherichia coli sensitive or resistant to colicin K-K235. ''Arch. Microbiol.'' '''131''':229-34
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!align=left  |Abstract
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Phage and colicin-resistant mutants were derived from Escherichia coli K-12P678. Two classes of phage T6 and colicin K-resistant mutants (genotype tsx) were isolated. Tsx-2 mutants, which demonstrated mucoid growth and increased sensitivities to many antibiotics, became sensitive to colicin K when pretreated with ethylenediaminetetraacetate (EDTA), whereas Tsx-1 mutants did not. Reassociation of EDTA-released material partially restored resistance to colicin K for Tsx-2 mutants. When EDTA-released material from strain P678 was associated with either class of K-resistant mutant, an increase in colicin K sensitivity resulted. Observations suggest that colicin K can act on its target site once it penetrates the cell surface. In addition, results suggest that functional colicin K receptors can be transferred from sensitive to resistant strains, thus conferring colicin sensitivity.
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[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=6808961 PubMed]
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!align=left  |Keywords
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Cell Membrane/metabolism; Colicins/metabolism; Colicins/pharmacology; Coliphages/genetics; Drug Resistance, Microbial; Edetic Acid/pharmacology; Escherichia coli/drug effects; Escherichia coli/genetics; Escherichia coli/metabolism; Escherichia coli Proteins; Kinetics; Membrane Proteins/isolation & purification; Receptors, Cell Surface; Receptors, Immunologic/genetics; Receptors, Immunologic/metabolism
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==Main Points of the Paper ==
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== Materials and Methods Used ==
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==Phenotype Annotations==
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==Notes==
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==References==
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[[Category:Publication]]

Revision as of 18:20, 13 November 2012

Citation

Brunner, DP , Graham, GS and Treick, RW (1982) Exchange of colicin receptor capacity between strains of Escherichia coli sensitive or resistant to colicin K-K235. Arch. Microbiol. 131:229-34

Abstract

Phage and colicin-resistant mutants were derived from Escherichia coli K-12P678. Two classes of phage T6 and colicin K-resistant mutants (genotype tsx) were isolated. Tsx-2 mutants, which demonstrated mucoid growth and increased sensitivities to many antibiotics, became sensitive to colicin K when pretreated with ethylenediaminetetraacetate (EDTA), whereas Tsx-1 mutants did not. Reassociation of EDTA-released material partially restored resistance to colicin K for Tsx-2 mutants. When EDTA-released material from strain P678 was associated with either class of K-resistant mutant, an increase in colicin K sensitivity resulted. Observations suggest that colicin K can act on its target site once it penetrates the cell surface. In addition, results suggest that functional colicin K receptors can be transferred from sensitive to resistant strains, thus conferring colicin sensitivity.

Links

PubMed

Keywords

Cell Membrane/metabolism; Colicins/metabolism; Colicins/pharmacology; Coliphages/genetics; Drug Resistance, Microbial; Edetic Acid/pharmacology; Escherichia coli/drug effects; Escherichia coli/genetics; Escherichia coli/metabolism; Escherichia coli Proteins; Kinetics; Membrane Proteins/isolation & purification; Receptors, Cell Surface; Receptors, Immunologic/genetics; Receptors, Immunologic/metabolism

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Main Points of the Paper

Please summarize the main points of the paper.

Materials and Methods Used

Please list the materials and methods used in this paper (strains, plasmids, antibodies, etc).

Phenotype Annotations

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Phenotype of Taxon Information Genotype Information (if known) Condition Information OMP ID OMP Term Name ECO ID ECO Term Name Notes Status
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Notes

References

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