Reversibility of a phosphoroclastic reaction
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چکیده
منابع مشابه
Reversibility of a phosphoroclastic reaction.
Reaction 1 occurring with reaction 2 involves carbon dioxide fixation. Koepsell & Johnson (1942) obtained a cell-free extract from Clo8tridium butylicum which converts pyruvic acid into acetic acid, carbon dioxide and hydrogen, and requires phosphate for the reaction. Later Koepsell, Johnson & Meek (1944) found that inorganic phosphate is taken up and labile phosphate appears. The overall react...
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The degradation of pyruvate, in the presence of phosphate, to acetate, carbon dioxide, and hydrogen by cell-free extracts of Clostridium butylicum was described by Koepsell and Johnson (1). Later acetyl phosphate, the labile precursor of the acetate, was shown to be produced (2, 3), and phosphotransacetylase was shown to be present in the cell-free extracts (4). This reaction is, at least, supe...
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The reversibility of adenylylation of glutamine synthetase from E. coli by adenylyltransferase was demonstrated. Several positive effectors (Gln, 2-hydroxyethyl-S-cysteine, Trp and Met) stimulate the back reaction in the same manner as the forward reaction. The apparent Michaelis constant for PP(i) is 2.2 mM at pH 7.35. The pH optimum of the back reaction is 6.5-7 while the pH optimum of the fo...
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Emmons (B2318), C. W. Hesseltine (Emmons A1238), and A. M. M. Wilson (B37). Replicate Sabouraud's dextrose agar plates were inoculated at five evenly dispersed sites with growth from 7-day-old Sabouraud's agar slants grown at 22 to 25 C. Each site was approximately 1 mm2. Duplicate plates of each strain were incubated at 15, 25, and 37 C. Through 48 hr, colonies were discrete and circular, and ...
متن کاملReversibility of Reaction of Potassium with Liquid Ammonia.
Ammoniated electrons exist in solutions of potassium amide in liquid ammonia which have reached thermodynamic equilibrium with hydrogen gas. By determining electron concentrations by electron spin resonance, an equilibrium constant of 10(5) at room temperature has been obtained.
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1948
ISSN: 0306-3283
DOI: 10.1042/bj0420598