it was concluded ( a ) that a significant fraction of the apparent na ( + ) -dependent hydrolysis of atp observed in the unwashed preparation is due to activation by bound k ( + ) and mg ( 2+ ) of the na ( + ) +k ( + ) +mg ( 2+ ) -stimulated adenosine triphosphatase system and ( b ) that the enzyme system is able to bind k ( + ) from a solution of 0.5mum-potassium chloride .
C1510699
hydrolysis
C0001473
adenosine