Abstract
Human erythrocyte spectrin, which has been extracted at low ionic strength and precipitated at pH 5.1, contains 0.025 μmoles phospholipid/mg protein. The composition of the spectrin-phospholipids differs from that of the erythrocyte membrane. A remarkable similarity was found between the composition of the “available” phospholipids of the inner leaflet of the membrane bilayer and the spectrinassociated phospholipids. Rebinding studies with1 2 5I-labeled spectrin show that the labeled spectrin binds preferentially to the cytoplasmic side of the membrane and that this binding is influenced by protein perturbations.
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Weidekamm, E., Brdiczka, B. & Wildermuth, M. Phospholipid composition of human erythrocyte spectrin. Mol Biol Rep 4, 25–28 (1978). https://doi.org/10.1007/BF00775176
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DOI: https://doi.org/10.1007/BF00775176