Abstract
Abstract The objectives of this research were to separate and partially characterize the components of rat liver cell plasma membranes. The plasma membranes of liver cells obtained from normal Wistar male rats were isolated using density gradients. The purified membrane was then solubilized in phenol-urea-acetic acid and gel electrophoresis was performed on the solubilized membrane components. Samples of the eluate collected following preparative gel electrophoresis were phosphorus positive-ninhydrin positive; phosphorus negative-ninhydrin positive; phosphorus po6itive-ninhydrin negative; and phosphorus negative-ninhydrin negative. The amino acid analyses showed that the proteins of the separated components were different and that no one component contained more than 6% of the total membrane protein. Liver cell plasma membranes contain components that differ from those of red blood cell plasma membranes. These components can be further divided into subgroups of proteins, i.e., phospholipoproteins and prot...
Published Version
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