the distribution and properties of cytochemically demonstrable phosphatases in the near-term guinea-pig placenta were examined using a strontium capture technique for sodium- and potassium-dependent adenosine triphosphatase ( na+ , k+-atpase ) and a lead capture technique for magnesium-dependent adenosine triphosphatase ( mg2+-atpase ) .
C0001473
atpase
C0001477
mg2