PC (no. 131601C) and fluorescently labeled ammonium salts of PEs with the acyl groups, NBD-1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine (DMPE; no. 810143C), NBD-POPE (no. 810118P), or NBD-DOPE (no. 810145C) were obtained from Avanti Polar Lipids (Alabaster, AL). NBD-1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine, triethylammonium salt (DPPE; no. N360) was obtained from Invitrogen (Thermo Fisher Scientific). Lomitapide, an MTP inhibitor, was obtained from Sigma (no. SML1385-5MG). The Cos-7 and Huh-7 cell lines, and the plasmids pcDNA3 and pcDNA3-hMTP-FLAG, have been described previously (20 (link), 21 (link), 26 (link), 27 (link)). Anti-FLAG® M2 affinity agarose gel and other chemicals were purchased from Millipore Sigma (no. A2220-5ML, St. Louis, MO). Round bottom black 96-well assay plates were obtained from Costar (no. 3792; Kennebunk, ME). FLAG peptide was custom synthesized (GenScript).
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