Detergent-resistant membranes (DRMs) isolated from cells are enriched in proteins and lipids with a high affinity for lipid rafts, or membrane microdomains in the liquid-ordered phase. Enrichment in DRMs provides a good indication that a protein is “raftophilic,” and may be present in rafts in cell membranes before extraction. Here, I describe preparation of Triton X-100-insoluble DRMs from cultured mammalian cells on sucrose gradients. Methods for analyzing the distribution of particular proteins across the gradient, and for recovering DRMs for further use are presented.
CITATION STYLE
Brown, D. A. (2015). Preparation of detergent-resistant membranes (DRMs) from cultured mammalian cells. Methods in Molecular Biology, 1232, 55–64. https://doi.org/10.1007/978-1-4939-1752-5_5
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