Difference between revisions of "PMID:14153532"

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(References)
(Table edited by Joncrz via TableEdit)
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*Taxon: Escherichia coli
 
*Taxon: Escherichia coli
 
*Strain: K-12
 
*Strain: K-12
*Substrain:  
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*Substrain: z-15
 
*NCBI Taxon ID: [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=83333&lvl=3&p=mapview&p=has_linkout&p=blast_url&p=genome_blast&lin=f&keep=1&srchmode=1&unlock 83333]
 
*NCBI Taxon ID: [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=83333&lvl=3&p=mapview&p=has_linkout&p=blast_url&p=genome_blast&lin=f&keep=1&srchmode=1&unlock 83333]
 
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*Genotype of Reference Strain:
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*Genotype of Reference Strain: Strain z-15
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*Genotype of Experimental Strain : Derivatives of Z-15
 
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*Reference Condition:
 
*Reference Condition:
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Abolished utilization of carbon source lactose in mutant strain. See Table 1.
 
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Revision as of 16:56, 18 April 2013

Citation

WITKIN, EM and SICURELLA, NA (1964) PURE CLONES OF LACTOSE-NEGATIVE MUTANTS OBTAINED IN ESCHERICHIA COLI AFTER TREATMENT WITH 5-BROMOURACIL. J. Mol. Biol. 8:610-3

Abstract

No abstract in PubMed

Links

PubMed

Keywords


Main Points of the Paper

Please summarize the main points of the paper.

  • Describes the introduction of mutations (by incorporation of 5BU into DNA) that results in cells unable to ferment lactose
  • Sectoring phenotypes appear, indicative of the timing the mutation gets incorporated within a cell of a colony

Materials and Methods Used

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

  • Parent strain: Z-15 (radiation-resistant, serine-requiring variant of the thymineless strain B3)
  • 5-Bromouracil Mutagenesis (on plates)
    • strain plated on 5BU completed 1 round of replication, whereby most of the thymine was replaced by 5BU
    • strain plated on thymine (control) completed a normal round of DNA replication
  • Bacto-eosin-methylene blue (EMB) indicator agar (for more information, click here)
    • dark red colonies (lactose +)
    • colorless colonies (lactose -)
    • mixed
      • large sectors (lac- component originated at the center and constituted one-eighth or more the area of the colony)
      • peripheral sectors

Phenotype Annotations

See Help:AnnotationTable for details on how to edit this table.
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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

a mutation or genetic difference within a strain

  • Taxon: Escherichia coli
  • Strain: K-12
  • Substrain: z-15
  • NCBI Taxon ID: 83333
  • Genotype of Reference Strain: Strain z-15
  • Genotype of Experimental Strain : Derivatives of Z-15
  • Reference Condition:

Abolished utilization of carbon source lactose in mutant strain. See Table 1.


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Notes

References

See Help:References for how to manage references in omp dev.