Magnesium ATPase (Mg-ATPase) is an ATPase that pumps magnesium. ATPase is required for operation magnesium as a cofactor. It is found in erythrocytes.[1] The antihypertensive medication guanethidine works by inhibiting it. It is encoded by the gene ATP3.


  1. Szemraj J, Sobolewska B, Gulczynska E, Wilczynski J, Zylinska L (May 2005). "Magnesium sulfate effect on erythrocyte membranes of asphyxiated newborns". Clin. Biochem. 38 (5): 457–64. doi:10.1016/j.clinbiochem.2005.02.005. PMID 15820777.

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