ATPase | calcium | Calcium oxide | V-ATPase | calcium channel | Calcium | P-type ATPase | N-type calcium channel | Calcium pyrophosphate | Calcium copper titanate | Calcium channel | Voltage-dependent calcium channel | Sodium-calcium exchanger | R-type calcium channel | Na+/K+-ATPase | Calcium silicate | Calcium phosphide | calcium oxide | Calcium oxalate | Calcium magnesium acetate | Calcium hydroxide | calcium hydroxide | Calcium chloride | Calcium aluminoferrite |
Many cells also possess a calcium ATPase, which can operate at lower intracellular concentrations of calcium and sets the normal or resting concentration of this important second messenger.