Results 151 to 160 of about 27,037 (204)

Systematic characterization of a novel gal operon in Thermoanaerobacter tengcongensis [PDF]

Microbiology, 2009
On the basis of theThermoanaerobacter tengcongensisgenome, a novel type ofgaloperon was deduced. The gene expression and biochemical properties of this operon were further characterized. RT-PCR analysis of the intergenic regions suggested that the transcription of thegaloperon was continuous.
Qian Zhong, Bo Meng, Quanhui Wang, Zhuowei Wang, Chuanqi Zhou, Qian Wang, Shuyang Tu, Liang Lin, Yanhe Ma, Siqi Liu   +9 more
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The lac and gal Operons Today

, 1996
In 1961, Jacob and Monod proposed the operon model of gene expression and its negative control primarily from the experimental results obtained by these authors and their colleagues studying the induced synthesis of proteins involved in the utilization of sugar lactose and development of bacteriophage X from a prophage state in Escherichia coli.
Sankar Adhya
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Formation of lambda lysogens by IS2 recombination: gal operon-lambda pR promoter fusions

Virology, 1979
Abstract When Escherichia coli carrying an IS2 element in the gal operon are infected with lambda which also carry an IS2 element, some lysogens are formed by recombination between the two insertion elements. The resulting prophage are abnormally permuted. Whereas normal prophages are bracketed by two attachment sites, the abnormal prophages carry an
Oscar Reyes, Max E. Gottesman, Sankar Adhya   +2 more
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Increased recombinant frequencies with an Amber mutation in the Gal-operon of E. coli

Molecular and General Genetics MGG, 1970
Two closely linked mutations, U20 and M87, in the deletion group V. of the transferase gene of the galactose operon in E. coli were crossed against a set of other mutations in the epimerase, transferase and kinase genes of the galactose operon by P1 transduction. U20 is an amber mutation.
Börries Kemper
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Interactions between DNA-bound transcriptional regulators of the Escherichia coli gal operon

Biochemistry, 1992
Regulation of the initiation of gene transcription from the gal operon of Escherichia coli is activated by the binding of CAP (catabolite activator protein) to a site centered at base pair -41.5 relative to the S1 start site of transcription. This operon is repressed by the specific binding of Gal repressor (GalR) to two operators, OE and OI, centered ...
Dennise D. Dalma‐Weiszhausz, Michael Brenowitz   +1 more
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Suppression of polarity of insertion mutations within the gal operon of E. coli

Molecular and General Genetics MGG, 1977
Phenotypic revertants of galOP::IS1 and galOP::IS2 mutations have been isolated after mutagenesis with nitrosoguanidine, they are probably caused by mutations in gene suA. The polarity suppressor mutations described in this study and a known mutation in gene suA isolated by D.
J Besemer, Maria Herpers
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Oo and strong-polar mutations in the gal operon and insertions

Molecular and General Genetics MGG, 1968
Elke Jordan, Heinz Saedler, Peter Starlinger   +2 more
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Metabolism of messenger RNA from the gal operon of Escherichia coli

Journal of Molecular Biology, 1974
Abstract The size and metabolism of messenger RNA from the galactose (gal) operon of Escherichia coli has been studied. The three known structural genes of the operon are about 1100 nucleotide pairs each and code for an epimerase (E), transferase (T) and kinase (K) gene, in that order.
D, Achord, D, Kennell
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Three-stage Regulation of the Amphibolic gal Operon: From Repressosome to GalR-free DNA

Journal of Molecular Biology, 2006
The gal operon of Escherichia coli is negatively regulated by the Gal repressosome, a higher order nucleoprotein complex containing a DNA loop that encompasses two gal promoters. In the repressosome structure, Gal repressor (GalR) dimers are bound to the two operator sites, flanking the promoter region, thus generating a DNA loop.
Szabolcs Semsey, Konstantin Virnik, Sankar Adhya   +2 more
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Interaction between λ or φ80 Prophage Induction and gal operon expression

Journal of Molecular Biology, 1973
Abstract When Escherichia coli cells are cultivated with fucose on a rich medium giving rise to a strong catabolite repression, λh80 or φ80 prophage thermo-induction triggers a significant escape of the gal operon activity.
G, Contesse, A, Bracone-Malhie, F, Gros
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