PMID:4555418
| Citation |
Venkateswaran, PS and Wu, HC (1972) Isolation and characterization of a phosphonomycin-resistant mutant of Escherichia coli K-12.J. Bacteriol. 110:935-44 |
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| Abstract |
A mutant was isolated from Escherichia coli K-12 which showed increased resistance towards phosphonomycin, a new bactericidal antibiotic recently isolated from strains of Streptomyces. Evidence is presented which suggests that this mutant is resistant to lysis by phosphonomycin because of a lower affinity of phosphoenolpyruvate: uridine diphospho-N-acetylglucosamine enolpyruvyl transferase for this antibiotic. This mutant was also found to be temperature-sensitive in growth. At 42 C mutant cells grew poorly, and the rate of incorporation of (3)H-diaminopimelic acid into trichloroacetic acid-insoluble material was also greatly reduced. Genetic studies indicate that the increased resistance toward phosphonomycin and temperature sensitivity in growth of this mutant are probably the consequences of a single mutation. |
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| Keywords |
Anti-Bacterial Agents; Carbon Isotopes; Cell Wall; Chromatography, Paper; Culture Media; Drug Resistance, Microbial; Escherichia coli; Genetics, Microbial; Glucose; Glucosephosphates; Glycerophosphates; Microscopy, Phase-Contrast; Mutation; Phosphoenolpyruvate; Phosphotransferases; Pimelic Acids; Temperature; Tritium |
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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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a mutation or genetic difference within a strain |
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OMP:0000276 |
increased resistance to antibiotics |
ECO:0000182 |
in vitro culture assay data |
Phosphonomycin resistant |
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a mutation or genetic difference within a strain |
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OMP:0000276 |
increased resistance to antibiotics |
ECO:0000182 |
in vitro culture assay data |
Phosphonomycin resistant |
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a mutation or genetic difference within a strain |
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|
OMP:0000276 |
increased resistance to antibiotics |
ECO:0000182 |
in vitro culture assay data |
Phosphonomycin resistant |
|
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Notes
References
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