X-ray diffraction study of cholesterol-phosphatidylserine mixtures |
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Authors: | E J Wachtel D Bach |
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Affiliation: | Department of Polymer Research, Weizmann Institute of Science, Rehovot, Israel. |
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Abstract: | Phosphatidylserine-cholesterol mixtures at a molar ratio of 2:1 were investigated by X-ray diffraction. Phase separation of cholesterol independent of temperature was detected, indicating limited solubility of cholesterol in phosphatidylserine bilayers. The second phase present, the mixed phospholipid-cholesterol phase, continued to undergo melting as determined by changes with temperature in both the small angle scattering profile and in the acyl chain packing. |
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