Difference between revisions of "PMID:328489"

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{|  id="V580a986682ea6"  class=" tableEdit PMID_info_table" 
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'''Bassford, PJ Jr, Diedrich, DL, Schnaitman, CL and Reeves, P'''  (1977) Outer membrane proteins of Escherichia coli. VI. Protein alteration in bacteriophage-resistant mutants. ''J. Bacteriol.'' '''131''':608-22
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!align=left align='left' bgcolor='#CCCCFF' |Abstract
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Protein 1 was shown to be the receptor for phage PA-2 by the observations that the purified protein inactivates the phage, mutants lacking the protein are resistant to the phage, and mutants selected for PA-2 resistance have altered protein. Protein 1 appears as two bands (1a and 1b) on high-resolution polyacrylamide gels. The most abundant classes of mutants (ParI and ParII) selected for PA-2 resistance were found to lack band 1b. The mutations responsible for the ParI and ParII phenotypes were mapped at a locus termed par, which is near nalA on the Escherichia coli chromosome. The cyanogen bromide peptides of proteins 1a and 1b are similar, suggesting that these bands represent modified forms of the same polypeptide. Strains carrying the tolF mutation produce only band 1b. When a par tolF double mutant was constructed, this strain produced only band 1a. These results suggest that genes at the par and tolF loci are involved in modification of protein 1, or regulation of such modification, and are not structural genes for protein 1.
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[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=328489 PubMed] [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC235470 PMC235470]
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!align=left align='left' bgcolor='#CCCCFF' |Keywords
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Bacterial Proteins/analysis; Bacterial Proteins/biosynthesis; Bacterial Proteins/physiology; Chromosome Mapping; Chromosomes, Bacterial; Coliphages; Escherichia coli/metabolism; Escherichia coli/physiology; Genes; Lysogeny; Membrane Proteins/analysis; Membrane Proteins/biosynthesis; Membrane Proteins/physiology; Mutation
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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]]

Latest revision as of 17:36, 21 October 2016

Citation

Bassford, PJ Jr, Diedrich, DL, Schnaitman, CL and Reeves, P (1977) Outer membrane proteins of Escherichia coli. VI. Protein alteration in bacteriophage-resistant mutants. J. Bacteriol. 131:608-22

Abstract

Protein 1 was shown to be the receptor for phage PA-2 by the observations that the purified protein inactivates the phage, mutants lacking the protein are resistant to the phage, and mutants selected for PA-2 resistance have altered protein. Protein 1 appears as two bands (1a and 1b) on high-resolution polyacrylamide gels. The most abundant classes of mutants (ParI and ParII) selected for PA-2 resistance were found to lack band 1b. The mutations responsible for the ParI and ParII phenotypes were mapped at a locus termed par, which is near nalA on the Escherichia coli chromosome. The cyanogen bromide peptides of proteins 1a and 1b are similar, suggesting that these bands represent modified forms of the same polypeptide. Strains carrying the tolF mutation produce only band 1b. When a par tolF double mutant was constructed, this strain produced only band 1a. These results suggest that genes at the par and tolF loci are involved in modification of protein 1, or regulation of such modification, and are not structural genes for protein 1.

Links

PubMed PMC235470

Keywords

Bacterial Proteins/analysis; Bacterial Proteins/biosynthesis; Bacterial Proteins/physiology; Chromosome Mapping; Chromosomes, Bacterial; Coliphages; Escherichia coli/metabolism; Escherichia coli/physiology; Genes; Lysogeny; Membrane Proteins/analysis; Membrane Proteins/biosynthesis; Membrane Proteins/physiology; Mutation

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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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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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