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[Molecular cloning of the structural genes of the Escherichia coli deo-operon in plasmid RSF2124]. 1978

A S Mironov, and M N Rozinov, and Iu I Kozlov, and V V Sukhodolets, and B A Rebentish

A specialized phage lambda ddeo carrying the deo operon of Escherichia coli is analyzed by exposing the DNA to the specific restriction endonucleases EcoRI and BamHI. Using the lambda ddeo DNA fragment, obtained by digestion with BamHI and plasmid RSF2124 as a vehicle, the hybrid plasmid pAM1 carrying all the genes of the deo operon is constructed and cloned in E. coli cells. It is shown that the activity of thymidine phosphorylase in the strain AM061, which contains hybrid plasmid pAM1 is 30-fold greater than that in strains of E. coli with chromosomal localization of the deo operon.

UI MeSH Term Description Entries
D009876 Operon In bacteria, a group of metabolically related genes, with a common promoter, whose transcription into a single polycistronic MESSENGER RNA is under the control of an OPERATOR REGION. Operons
D010430 Pentosyltransferases Enzymes of the transferase class that catalyze the transfer of a pentose group from one compound to another.
D010957 Plasmids Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS. Episomes,Episome,Plasmid
D002999 Clone Cells A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed) Clones,Cell, Clone,Cells, Clone,Clone,Clone Cell
D003090 Coliphages Viruses whose host is Escherichia coli. Escherichia coli Phages,Coliphage,Escherichia coli Phage,Phage, Escherichia coli,Phages, Escherichia coli
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005796 Genes A category of nucleic acid sequences that function as units of heredity and which code for the basic instructions for the development, reproduction, and maintenance of organisms. Cistron,Gene,Genetic Materials,Cistrons,Genetic Material,Material, Genetic,Materials, Genetic
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D013939 Thymidine Phosphorylase An enzyme that catalyzes the transfer of 2-deoxy-D-ribose from THYMIDINE to orthophosphate, thereby liberating thymidine. PD-ECGF,Platelet-Derived Endothelial Cell Growth Factor,Gliostatin,Platelet Derived Endothelial Cell Growth Factor

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