Difference between revisions of "PMID:783128"

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'''Manning, PA and Reeves, P'''  (1976) Outer membrane of Escherichia coli K-12: differentiation of proteins 3A and 3B on acrylamide gels and further characterization of con (tolG) mutants.''J. Bacteriol.'' '''127''':1070-9
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!align=left  |Abstract
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Two classes of mutants, con and tolG, that appeared to be very similar in a number of respects have been shown to be identical and cotransducible with pyrD. By diethylaminoethyl-cellulose chromatography of the outer membranes, we have shown that the mutants are missing only protein 3A and retain protein 3B. Using con mutants, we were thus able to identify protein 3B on the pH 7.2 gel system of Maizel where it runs separately from protein 3A if unheated samples are used. tolG mutants were shown to be identical to con mutants in being conjugation defective with most F-like plasmid donors but not with I-like plasmid donors, and in their resistance pattern to bacteriophages and colicins. During the course of this study, it was observed that the bacteriocin produced by Serratia marcescenc JF246 was identical in its activity spectrum to colicin L-398 and is now considered to be a colicin of type L.
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[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=783128 PubMed]
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!align=left  |Keywords
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Anti-Bacterial Agents; Bacterial Proteins; Cell Membrane; Chromosome Mapping; Chromosomes, Bacterial; Colicins; Coliphages; Drug Resistance, Microbial; Electrophoresis, Polyacrylamide Gel; Escherichia coli; Mutation; Plasmids; Transduction, Genetic
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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 12:22, 26 April 2012

Citation

Manning, PA and Reeves, P (1976) Outer membrane of Escherichia coli K-12: differentiation of proteins 3A and 3B on acrylamide gels and further characterization of con (tolG) mutants.J. Bacteriol. 127:1070-9

Abstract

Two classes of mutants, con and tolG, that appeared to be very similar in a number of respects have been shown to be identical and cotransducible with pyrD. By diethylaminoethyl-cellulose chromatography of the outer membranes, we have shown that the mutants are missing only protein 3A and retain protein 3B. Using con mutants, we were thus able to identify protein 3B on the pH 7.2 gel system of Maizel where it runs separately from protein 3A if unheated samples are used. tolG mutants were shown to be identical to con mutants in being conjugation defective with most F-like plasmid donors but not with I-like plasmid donors, and in their resistance pattern to bacteriophages and colicins. During the course of this study, it was observed that the bacteriocin produced by Serratia marcescenc JF246 was identical in its activity spectrum to colicin L-398 and is now considered to be a colicin of type L.

Links

PubMed

Keywords

Anti-Bacterial Agents; Bacterial Proteins; Cell Membrane; Chromosome Mapping; Chromosomes, Bacterial; Colicins; Coliphages; Drug Resistance, Microbial; Electrophoresis, Polyacrylamide Gel; Escherichia coli; Mutation; Plasmids; Transduction, Genetic

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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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<protect>

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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</protect>

Notes

References

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