raise, lower, or no affect why??
Definitely, Mg++ will have an affect on the free energy of hydrolysis of ATP, even as pH has an effect. How come?
The effect of Mg++ ions on ATP hydrolysis is actually quite complex. If you decrease the Mg++ concentration from about 100 mM to 1 mM, we see a decrease in the free energy of hydrolysis by about 1 kcal/mol. However, here's the interesting part. If you decrease the Mg++ even further, say, ...
Free energy and its affects of the presence of metal ions in the cell of hydrolysis of ATP.