Reconstitution Assay System for Ceramide Transport With Semi-Intact Cells
Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan. Methods in cell biology
(Impact Factor: 1.42).
01/2012; 108:117-29. DOI: 10.1016/B978-0-12-386487-1.00006-7
The intracellular transport of lipids from the sites of their synthesis to their appropriate destination is a critical step for lipid metabolism. One well-defined inter-organelle lipid movement is the transport of ceramide by ceramide transport protein (CERT). Ceramide, a key intermediate for both sphingomyelin and glycosphingolipids, is synthesized at the endoplasmic reticulum and delivered to the Golgi apparatus to be converted to sphingomyelin. CERT delivers ceramide from the ER to the Golgi apparatus in a non-vesicular and ATP-dependent manner. This chapter describes a reconstitution assay system for ceramide transport with semi-intact cells, which is useful for the study of the CERT-mediated inter-organelle transport of ceramide.
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