Lipid composition and lipid ratio of whole cell membranes and purified plasma membranes of CX+/CX−, Colo+/Colo−, and HeLa+/HeLa− tumor sublines.

Data are displayed as the lipid content and ratio in Hsp70 membrane-positive vs membrane-negative carcinoma sublines. The calculation for total lipid content is based on the sum of all analyzed lipid classes in nM/mg protein. The lipid classes are calculated from the respective mol % value of all analyzed lipids.aData are means±SE of 3 to 4 independent experiments. PC, phosphatidylcholine; SPM, sphingomyelin; DiSPM, DihydroSPM; PE, phosphatidylethanolamine; PS, phosphatidylserine; Cer, ceramide; GluCer, glucosylCer