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fatty acid binding protein 8 FABP8 (also known as peripheral myelin protein 2, PMP2, myelin fatty acid binding protein, M-FABP, myelin P2 protein, MP2) is a fatty acid-binding structural component of the myelin sheath in the peripheral nervous system and may play a role in lipid transport and homeostasis in myelin. It may bind cholesterol which is present in myelin at high concentrations. In addition to binding momomeric ligands, P2 is able to bind membrane surfaces, and to stack lipid bilayers together. This subgroup belongs to the intracellular fatty-acid binding protein (FABP) family, members of which are small proteins that bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.
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