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<p><b>Flippases</b> are transmembrane lipid transporter <a href="page.php?w=protein">protein</a>s located in the <a href="page.php?w=cell_membrane">cell membrane</a>. They are responsible for aiding the movement of <a href="page.php?w=phospholipid">phospholipid</a> molecules between the two layers, or leaflets, that comprise the membrane. This is called transverse diffusion, also known as "flip-flop" transition. Flippases move lipids to the cytosolic layer, usually from the extracellular layer. Floppases do the opposite, moving lipids to the extracellular</p><p>
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