Flippase

• abstract: Flippases (rarely, flipases) are a family of transmembrane lipid transporter enzymes located in the membrane responsible for aiding the movement of phospholipid molecules between the two leaflets that compose a cell's membrane (transverse diffusion). Their existence was predicted in 1972 by Mark Bretscher, who also named them, to explain how an asymmetric phospholipid bilayer could be formed.

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