The phosphatase activity of the plasma membrane Ca2+ pump. Activation by acidic lipids in the absence of Ca2+ increases the apparent affinity for Mg2+
Keywords: pPMCA; plasma membrane Ca2+ pump from pig erythrocytes; pNPP; p-nitrophenylphosphate; EGTA; ethylene glycol bis(b-aminoethyl ether)-N,N,Nâ²,Nâ²-tetraacetic acid; PC; phosphatidylcholine; PS; phosphatidylserine; BE; lipid extract from bovine brain; CaM;