The plasma membrane is a semipermeable lipid bilayer that separates the cytoplasm and intracellular components from the extracellular environment. It contains various molecules, including proteins and lipids, and serves as the attachment point for the intracellular cytoskeleton. Movement of substances across the plasma membrane can work via passive or active transport, the latter of which requires the expenditure of energy. Sodium Potassium ATPase is an integral membrane protein complex that hydrolyzes ATP to maintain Na+ and K+ transmembrane gradients. Sodium Potassium ATPase and Pma1 are common membrane ATPases that serve as a general plasma membrane markers.
Popular Membrane Marker Antibodies: