Phosphoric Acid

these "phosphates" are phosphoric ACID. That's like if you asked, whether the sulfate in H2SO4 solution confers the name 'acid'.

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first of all, it is acid, thus lowering pH either denaturing protein or at least shifting the pH from optimal one. That can also hydrolyse the ATP. Second, it is PHOSPHORIC acid, AKA containing phosphate, which is for sure competitive inhibitor of the kinase.

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... I am told my the manufacturer that i can halt the reaction by adding phosphoric acid to 0.06%. Can anyone explain exactly what is happening to the ATP in here? Is the acid ...

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... depends on what type of phosphate group we have If we had high conc of phosphoric acid we would get phospholipid + fatty acid, right?

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if the phosphoric acid was only in small amount, you would end up with hydrolysis rather than reesterification

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