Results 141 to 150 of about 4,703 (162)
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Relationship between guanosine tetraphosphate and accuracy of translation in Salmonella typhimurium
Biochemistry, 1989In bacteria a high level of mistranslation is observed in amino acid starved rel-, but not rel+, strains, and mistranslation can be studied qualitatively by means of "stuttering" experiments in two-dimensional protein gels. It has been suggested that the low level of mistranslation that occurs in rel+ strains is assured by guanosine 5'-diphosphate 3 ...
Alain J Cozzone, P Donini, D Negre
exaly +4 more sources
Synthesis of guanosine tetraphosphate (Magic Spot I) in Saccharomyces cerevisiae
Biochemical and Biophysical Research Communications, 1977Abstract Guanosine tetraphosphate (Magic Spot I) has been found in formic acid extracts of Saccharomyces cerevisiae subjected to heat shock. The yeast compound comigrates with authentic ppGpp in several chromatographic systems, and further tests confirm its identity with the guanosine-5′-diphosphate-3′-diphosphate found in bacteria ...
Jonathan Gallant, J A Gallant
exaly +3 more sources
Wide occurrence of guanosine 5′-tetraphosphate in commercial preparations of GTP
Analytical Biochemistry, 1975This investigation was supported by grants from the Fondo National para el Desarrollo de la Investigation Cientifica and the Jane Coffin Childs Memorial Fund for Medical Research. C.G.V. is a postdoctoral fellow of the Fundacidn Juan March.
Antonio Sillero +2 more
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Metabolism of Guanosine Tetraphosphate in Escherichia coli
European Journal of Biochemistry, 1972In rel+ strains of Escherichia coli guanosine 2′(3′)‐diphosphate‐5′‐diphosphate (ppGpp) was found to accumulate (a) during amino acid starvation of an auxotrophic strain, (b) during heating to the non‐permissive temperature of a valSts strain, (c) during heating of a wild‐type strain to temperatures above 46°C and (d) during treatment with trimethoprim
E, Lund, N O, Kjeldgaard
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Synergistic inhibition of ATP phosphoribosyltransferase by guanosine tetraphosphate and histidine
Biochemical and Biophysical Research Communications, 1977Abstract In the presence of partially inhibiting concentrations of the feedback inhibitor histidine guanosine-5′-diphosphate-3′-diphosphate becomes a potent inhibitor of the residual activity of ATP phosphoribosyltransferase from Salmonella typhimurium . Inhibition by guanosine tetraphosphate is higher order and slowly reversible.
D P, Morton, S M, Parsons
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Accumulation of Guanosine Tetraphosphate in T7 Bacteriophage-Infected Escherichia coli
Journal of Bacteriology, 1973Accumulation of guanosine tetraphosphate (ppGpp) in Escherichia coli strain AS19 valS , carrying a temperature-sensitive valyl-transfer ribonucleic acid synthetase and infected with bacteriophage T7, was studied. Valine starvation was achieved by culturing this strain at 42 C.
J D, Friesen, N, Fiil
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Biochemical and Biophysical Research Communications, 1974
Abstract Salt-washed ribosomes from Escherichia coli , plus stringent protein, form more ppGpp than pppGpp from GTP at all times, but unwashed ribosomes are shown to synthesize primarily pppGpp as the initial product.
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Abstract Salt-washed ribosomes from Escherichia coli , plus stringent protein, form more ppGpp than pppGpp from GTP at all times, but unwashed ribosomes are shown to synthesize primarily pppGpp as the initial product.
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Journal of cyclic nucleotide research, 1977
The effects of a variety of purine and pyrimidine nucleotides were tested for their capacity to inhibit mammalian soluble guanylate cyclase activity. Adenosine 5'-tetraphosphate (ATetP), ATP, ADP, AMP, guanosine 5'-tetraphosphate (GTetP) and GDP were found to inhibit soluble guanylate cyclase activity from rat lung and other mammalian tissues.
L J, Ignarro, R A, Gross, D M, Gross
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The effects of a variety of purine and pyrimidine nucleotides were tested for their capacity to inhibit mammalian soluble guanylate cyclase activity. Adenosine 5'-tetraphosphate (ATetP), ATP, ADP, AMP, guanosine 5'-tetraphosphate (GTetP) and GDP were found to inhibit soluble guanylate cyclase activity from rat lung and other mammalian tissues.
L J, Ignarro, R A, Gross, D M, Gross
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