The structure of the metal-nucleotide complex substrate for yeast hexokinase |
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Authors: | C Cooper |
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Institution: | Department of Biochemistry Case Western Reserve University Cleveland, Ohio 44106 USA |
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Abstract: | A comparison has been made of the kinetic parameters obtained with yeast hexokinase using Mg2+ or Ni2+ as metal ion activator and ATP or tubercidin-5′-triphosphate as nucleotide substrate. It is concluded that the relative specificity of the enzyme for MgATP2? does not involve a contribution arising from an interaction of the metal ion with the purine ring of the nucleotide. |
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