Colicinogeny of Escherichia coli MRE 600
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منابع مشابه
Colicinogeny of Escherichia coli MRE 600.
Escherichia coli MRE 600 is a colicinogenic bacterium. Its colicinogenic activity may be ascribed mostly to colicin E1, although it produces a small amount of another, as yet unidentified, colicin.
متن کاملATP-analogues as substrates for the leucyl-tRNA synthetase from Escherichia coli MRE 600.
No analogous nucleoside triphosphate was found which acts as well as ATP in binding to and supporting catalysis of leucyl-tRNA synthetase from Escherichia coli MRE 600. However, there are numerous nucleotides which are able to replace ATP, but with lower efficiency. The 6-amino group of the adenine ring and the 2'-hydroxyl group of the ribose ring are essential for binding and catalytic activit...
متن کاملLoss of colicinogeny in Escherichia coli strains infected by certain resistance factors.
The original observation that in wild-type colicinogenic Escherichia coli strains the introduction of some R factors abolish their colicin production was studied in certain col(+) strains bearing well-defined col factors. Two resistance (R) factors were used and introduced by conjugation in these strains, namely the 222 factor of Watanabe and a Salmonella typhimurium ST factor (coding for resis...
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Escherichia coli was isolated from feral house mice (Mus domesticus) during the course of a mouse plague in the state of Victoria, Australia. The isolates were characterized for the production of colicins and their resistance to the co-occurring colicins. Of the 447 isolates examined, 59% were found to be colicinogenic. Phenotypic and PCR-based genotypic methods were used to determine the types...
متن کاملInhibition of synthetic and natural messenger translation. I. Purification and properties of a protein isolated from Escherichia coli MRE 600 ribosomes.
Escherichia coli MRE 600 ribosomes was found to inhibit translation of R17 RNA or poly(U) and initiation complex formation with R17 RNA. The effect of this protein on poly(U) translation was used as the basis of a simple and specific assay for its purification. The factor was purified to homogeneity by chromatography on DEAE-cellulose, hydroxyapatite, and Sephadex G-150, and its molecular weigh...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1978
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.14.5.797