Plasma membrane adenosine triphosphatase of oat roots: activation and inhibition by mg and ATP.

@article{Balke1975PlasmaMA,
  title={Plasma membrane adenosine triphosphatase of oat roots: activation and inhibition by mg and ATP.},
  author={Nelson E. Balke and Thomas K. Hodges},
  journal={Plant physiology},
  year={1975},
  volume={55 1},
  pages={83-6}
}
ATPase activity of plasma membrane vesicles isolated from oat (Avena sativa L. cv. Goodfield) roots was examined in the presence of various concentrations of MgCl(2) and ATP. A Mg(2+): ATP ratio of about 1 was required for maximal activity regardless of the concentrations used; the optimum concentration for both Mg(2+) and ATP was 9 mm. Based on the ATPase activity at different concentrations of complexed Mg.ATP and free ATP, it is concluded that Mg.ATP is the true substrate of this enzyme… CONTINUE READING

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