[Electrophoretic characteristics of the protein of yeast lipid granules]

The proteins from the membranes of lipid granules, the plasmalemma and the membranes of the endoplasmic reticulum isolated from Candida tropicalis cells were analyzed using electrophoresis in polyacrylamide gel. The electrophoretic spectra of the proteins from these membranes were quite different. It has been proved experimentally that lipid granules from yeast cells growing on n-alkanes and containing large amounts of n-alkanes are not derivatives of the pinocytozing plasmalemma. The membranes of lipid granules are presumed to be formed in the cell de novo upon accumulation of substances of the lipid nature.