Adenosine-5'-tetraphosphate and guanosine-5'-tetraphosphate: new substrates of the cytosolic exopolyphosphatase of the yeast Saccharomyces cerevisiae.
Copyright policy )Adenosine-5'-tetraphosphate and guanosine-5'-tetraphosphate: new substrates of the cytosolic exopolyphosphatase of the yeast Saccharomyces cerevisiae.
A cytosolic preparation of Saccharomyces cerevisiae is capable of hydrolyzing adenosine-5'-tetraphosphate and guanosine-5'-tetraphosphate with activities which are 1.5-2 times greater than that with polyP15. The apparent K(m) values for hydrolysis of adenosine-5'-tetraphosphate and guanosine-5'-tetraphosphate are 100 and 80 microM, respectively. A comparative study of inhibitors shows that these activities are inherent characteristics of these exopolyphosphatases.
- Russian Academy of Sciences Russian Federation
- Institute of Biochemistry and Physiology of Microorganisms Russian Federation
Kinetics, Cytosol, Adenine Nucleotides, Heparin, Hydrolysis, Sodium Fluoride, Guanosine Tetraphosphate, Saccharomyces cerevisiae, Enzyme Inhibitors, Acid Anhydride Hydrolases
Kinetics, Cytosol, Adenine Nucleotides, Heparin, Hydrolysis, Sodium Fluoride, Guanosine Tetraphosphate, Saccharomyces cerevisiae, Enzyme Inhibitors, Acid Anhydride Hydrolases
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