Nonterminal Incorporation of Guanosine Monophosphate from Guanosine Triphosphate by an Enzyme System from Spinach Chloroplasts
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منابع مشابه
Nonenzymatic formation of guanosine 3':5'-monophosphate from guanosine triphosphate.
We observed the nonenzymatic formation of guanosine 3’:5’-monophosphate (cyclic GMP) from GTP. The reaction was dependent upon heat and was accelerated by divalent cations and creatine phosphate. The formation of cyclic GMP was greater with increased incubation time, temperature, GTP concentration, and pH. All of the divalent cations tested (Mg2+, Mnz+, Ca2+, Ba2+, and Znzf) increased cyclic GM...
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Several laboratories have reported studies on individual enzymes that belong to the general class of adenosine triphosphate : nucleoside monophosphate phosphotransferases (EC 2.7.4.4), commonly termed nucleoside monophosphate kinases (l-7). Studies with partially purified enzyme preparations have indicated that a variety of nucleoside monophosphates can serve as alternative substrates for nucle...
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The isolation of adenosine tetraphosphate and pentaphosphate from samples of adenosine triphosphate has been reported by Marrian (1) and Sacks (2). The available evidence is consistent with a st,ructure in which the phosphate residues are linked by phosphoanhydride bonds to one another and are carried by the 5’-hgdroxyl group of the ribose moiety (l-4). During attempts to estimate guanosine tri...
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Strain GS, a gram-negative motile bacterium isolated from soil, synthesizes two polysaccharides. The synthesis of a uranic acid-containing polysaccharide is derepressed by high concentrations of Na2SOd, while the synthesis of the polysaccharide containing equal quantities of n-rhamnose and n-talomethylose is repressed by NazS01 (1, 2). L-F’ucose and L-rhamnose are the methylpentoses commonly fo...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1965
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)97076-6