I want to isolate Plasma membrane only from the K562 cell lines to for lipidomics. Can anyone provide me with a protocol that i can use that shows how to first prepare the gradient and then in what fractions would I get the desired plasma membrane?
The paper below has the method for isolating plasma membrane from mouse tissues. you might find it helpful.
http://jcb.rupress.org/content/199/2/215
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