Abstract
We have used pulse-chase labeling of Chinese hamster ovary cells with choline followed by plasma membrane isolation on cationic beads to study the transport of phosphatidylcholine from the endoplasmic reticulum to the plasma membrane. We have found that the process is rapid (t1/2 [25 degrees C] = 2 min) and not affected by energy poisons or by cytochalasin B, colchicine, monensin, or carbonyl cyanide p-chlorophenylhydrazone. Cooling cells to 0 degree C effectively stops the transport process. The intracellular transport of phosphatidylcholine is distinct in several ways from the intracellular transport of cholesterol (Kaplan, M. R., and R. D. Simoni, 1985, J. Cell. Biol., 101:446-453).
MeSH Terms
Animals
Biological Transport, Active/drug effects
Carbonyl Cyanide m-Chlorophenyl Hydrazone/pharmacology
Cell Line
Cell Membrane/metabolism
Choline/metabolism
Colchicine/pharmacology
Cricetinae
Cricetulus
Cytochalasin B/pharmacology
Endoplasmic Reticulum/metabolism
Female
Fluorides
Kinetics
Monensin/pharmacology
Ovary
Phosphatidylcholines/metabolism
Potassium/pharmacology
Potassium Compounds
Potassium Cyanide/pharmacology
Temperature
Chemicals
Phosphatidylcholines
Potassium Compounds
Cytochalasin B
Carbonyl Cyanide m-Chlorophenyl Hydrazone
Monensin
potassium fluoride
Potassium Cyanide
Choline
Fluorides
Potassium
Colchicine
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Kaplan M R
Simoni R D
References (23)
23 references, click to expand
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