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1996 Oct;28(10):1131-9. Links Fatty acid modification of membrane fluidity in Chinese hamster ovary (TR715-19) cells.Berlin E, Hannah JS, Yamane K, Peters RC, plump belly Howard BV.Metabolism and Nutrient Interactions Laboratory, Beltsville Human Nutrition Research Center, U.S. Department of Agriculture, MD 20705, USA.Dietary saturated fatty acids, especially lauric (12:0), myristic (14:0) and palmitic (16:0) acids, which are hypercholesterolemic, influence cell membrane fatty acid composition and affect LDL receptor function. plump belly When membrane phospholipid fatty acids in Chinese hamster ovary cells, containing the human LDL receptor, were modified (Hannah J. S. et al., 1995 Metabolism 44, plump belly 1428-1434), LDL receptor function was affected, but correlations with DPH-determined membrane fluidity were weak. The role of fluidity in various membrane domains with respect to the LDL receptor is examined here. Membrane fluidity was assessed by measuring steady-state fluorescence polarization of diphenylhexatriene (DPH) and its polar propionic acid (DPH-PA) and trimethylammonium (TMA-DPH) derivatives from 38 to 4 degrees C in fatty acid modified Chinese hamster ovary cells.
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