Two fatty acids can replace one phospholipid in condensed complexes with cholesterol |
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Authors: | Okonogi Tamara M Radhakrishnan Arun McConnell Harden M |
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Affiliation: | Department of Chemistry, Stanford University, CA 94305, USA. |
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Abstract: | We report that the monolayer phase diagram for binary mixtures of dimyristoylphosphatidylethanolamine (DMPE) and dihydrocholesterol (DChol) is largely unchanged when each phospholipid molecule is replaced by two myristic acid (MA) molecules or various mixtures of the lysophospholipid and myristic acid. The corresponding phase diagrams all show the formation of "condensed complexes" of DChol and lipid. The condensed complex stoichiometry is thus largely determined by the C14 fatty acid acyl chains, in this case about 4-4.6 per DChol molecule. |
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