Interaction of Anions and Divalent Metal Ions with Phosphoenolpyruvate Carboxykinase *

@inproceedings{LARRY2002InteractionOA,
  title={Interaction of Anions and Divalent Metal Ions with Phosphoenolpyruvate Carboxykinase *},
  author={LARRY and A.. and J L Bentley},
  year={2002}
}
The catalytic activity of phosphoenolpyruvate carboxykinase in rat liver cytosol is stimulated by incubating with Fez+, Mn2+, Co*+, and Cd*+. When purified, the enzyme no longer responds to Fez+, coz-, or Cd2+ but retains a response to Mn*+. Low concentrations of SOa2m in the incubation medium with enzyme and divalent transition metal allow stimulation by Fe’+ and Co2+ and enhance the response to Mn’+. Under identical conditions, orthophosphate with Fe 2+ is a potent inhibitor of the enzyme… CONTINUE READING
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