Results 201 to 210 of about 22,858 (260)
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Hexose-ATP phosphotransferases: Comparative aspects
Comparative Biochemistry and Physiology, 1968Abstract 1. 1. Glucokinase activity has been measured in livers of several amphibians, reptiles and mammals. 2. 2. The enzyme behaves adaptively in rats, mice, hamsters, guinea pigs, gerbils and squirrel monkeys. 3. 3. An antibody to yeast hexokinase was prepared; it did not react with any animal hexokinases. 4. 4.
Simon J. Pilkis +2 more
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On the distribution and biological significance of the nucleoside phosphotransferases
Biochimica et Biophysica Acta, 1955Abstract Nucleoside phosphotransferases were found in a large variety of plant and animal tissues. In plants and bacteria, only 5′-nucleotides are formed, while in animals small amounts of the 3′-isomers are also produced. The rates of phosphate transfer from phenylphosphate and 5′-inosinic acid are of the same order of magnitude in plants, bacteria ...
George Brawerman, Erwin Chargaff
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Sulphotransferases and phosphotransferases in insects
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1973Abstract 1. 1. High-speed supernatant fractions from tissue homogenates of eight species of insects representing four major orders were tested for sulphotransferase and phosphotransferase activities. 2. 2. A sulphotransferase system was present in all the species tested and required ATP, Mg 2+ and inorganic sulphate for the sulphation of p -
Christopher F. Wilkinson +1 more
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Biochemical and Biophysical Research Communications, 2001
In Pseudomonas aeruginosa PAO1, we have found massive polyphosphate:AMP phosphotransferase activity and polyphosphate:ADP phosphotransferase activity known as the reverse catalytic activity of polyphosphate kinase which participates in polyphosphate synthesis in the bacterium.
Kazuya Ishige, Toshitada Noguchi
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In Pseudomonas aeruginosa PAO1, we have found massive polyphosphate:AMP phosphotransferase activity and polyphosphate:ADP phosphotransferase activity known as the reverse catalytic activity of polyphosphate kinase which participates in polyphosphate synthesis in the bacterium.
Kazuya Ishige, Toshitada Noguchi
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Environmental Microbiology, 2015
The Bacillus cereus group is composed of Gram-positive spore-forming bacteria of clinical and ecological importance. More than 200 B. cereus group isolates have been sequenced. However, there are few reports of B. cereus group antibiotic resistance genes.
Chao Wang +6 more
semanticscholar +1 more source
The Bacillus cereus group is composed of Gram-positive spore-forming bacteria of clinical and ecological importance. More than 200 B. cereus group isolates have been sequenced. However, there are few reports of B. cereus group antibiotic resistance genes.
Chao Wang +6 more
semanticscholar +1 more source
Biochimica et Biophysica Acta, 1960
Abstract The partial purification of the nucleoside phosphotransferase of carrot is described. The procedures, which entailed precipitation with acetone, fractionation with ammonium sulfate, and treatment with zinc ions in the presence of ethanol and with calcium phosphate gel, afforded preparations whose specific transferase activity was 40 to 100 ...
Erwin Chargaff, Marvin Tunis
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Abstract The partial purification of the nucleoside phosphotransferase of carrot is described. The procedures, which entailed precipitation with acetone, fractionation with ammonium sulfate, and treatment with zinc ions in the presence of ethanol and with calcium phosphate gel, afforded preparations whose specific transferase activity was 40 to 100 ...
Erwin Chargaff, Marvin Tunis
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Transposable Neomycin Phosphotransferases [PDF]
, 1977 Transposable genetic elements are discrete DNA segments with the capacity to move between independent DNA replicons within the cell. The recent discoveries that certain plasmid-borne genes, which confer resistance to antibiotics and to heavy metals, are components of transposable elements has improved our understanding of how plasmids might pick up ...
P. Courvalin +6 more
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Assay of aminoglycoside phosphotransferase in situ
Analytical Biochemistry, 1985A method for the evaluation of the aminoglycoside phosphotransferase activity in bacterial colonies directly is described. The method is based on the ability of the enzyme to modify the substrate immobilized on carboxymethylcellulose paper. The sensitivity and accuracy of the method were tested by comparing the results of the present assay to those ...
Vladimir O. Rechinskii +2 more
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Nucleoside phosphotransferase of chick embryo
Molecular and Cellular Biochemistry, 1979This paper describes a purification procedure and some properties of a nonspecific nucleoside phosphotransferase of chick embryo, an activity which catalyzes the transfer of chick embryo, an activity which catalyzes the transfer of the phosphate ester from a deoxyribonucleotide or a pyrimidine ribonucleotide to a deoxyribonucleoside acceptor.
Giovanni Tesoriere +3 more
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Biochemistry, 2004
Aminoglycoside 3'-phosphotransferases [APH(3')s] are important bacterial resistance enzymes for aminoglycoside antibiotics. These enzymes phosphorylate the 3'-hydroxyl of these antibiotics, a reaction that inactivates the drug.
Choonkeun Kim +6 more
semanticscholar +1 more source
Aminoglycoside 3'-phosphotransferases [APH(3')s] are important bacterial resistance enzymes for aminoglycoside antibiotics. These enzymes phosphorylate the 3'-hydroxyl of these antibiotics, a reaction that inactivates the drug.
Choonkeun Kim +6 more
semanticscholar +1 more source