ADP

The ADP and inorganic phosphate are the reaction products of ATP hydrolysis The charge density on ATP is larger than its hydrolysis product, ADP,  and theoretical studies show that ATP is less solvated  than ADP.  Both of these factors make ADP more stable in solution than ATP.

Wire Frame

Phosphorus in Green

Carbons in Yellow

Hydrogens in Blue

Oxygens in Red

 

A map of the electrostatic potential of ADP is shown above.  

 

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