The Scientific World Journal

The Scientific World Journal / 2002 / Article

Peer-Reviewed Protocol | Open Access

Volume 2 |Article ID 890283 | 5 pages |

Fractionation of Golgi, Endoplasmic Reticulum, and Plasma Membrane from Cultured Cells in a Preformed Continuous Iodixanol Gradient

Received07 Mar 2002
Accepted15 May 2002


A continuous iodixanol gradient within the range 0-30% (w/v) iodixanol can resolve the major membrane compartments of the endoplasmic reticulum, Golgi membranes, and plasma membrane from a postnuclear supernatant prepared from a cultured cell homogenate. The precise density range of the gradient and the centrifugation conditions (100,000-200,000 g for 2-16 h) vary with the type of cell and the requirements of the separation. The strategy is widely used to study the processing of proteins within cells.

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