Differential control of band 3 lateral and rotational mobility in intact red cells.
نویسندگان
چکیده
منابع مشابه
Band 3 and glycophorin are progressively aggregated in density-fractionated sickle and normal red blood cells. Evidence from rotational and lateral mobility studies.
Band 3 aggregation in the plane of the red blood cell (RBC) membrane is postulated to be important in the pathophysiology of hemolysis of dense sickle and normal RBCs. We used the fluorescence photobleaching recovery and polarized fluorescence depletion techniques to measure the lateral and rotational mobility of band 3, glycophorins, and phospholipid analogues in membranes of density-separated...
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15 صفحه اولIncreased rotational mobility and extractability of band 3 from protein 4.2-deficient erythrocyte membranes: evidence of a role for protein 4.2 in strengthening the band 3-cytoskeleton linkage.
Band 3 (anion-exchange protein 1-[AE1]) is the major integral membrane protein of human erythrocytes and links the membrane to the underlying cytoskeleton via high-affinity binding to ankyrin. It is unclear whether other cytoskeletal proteins participate in strengthening the ankyrin-band 3 linkage, but a putative role for protein 4.2 (P4.2) has been proposed based on the increased osmotic fragi...
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Microaggregation of band 3 proteins in hereditary ovalocytic membranes was investigated by rotational diffusion measurements and by electron microscopy. It was previously shown that band 3 in ovalocytic membranes has decreased rotational mobility compared with band 3 in normal cells (Tilley, L., Nash, G.B., Jones, G.L. and Sawyer, W.L. (1991) J. Membr. Biol. 121, 59-66). This result could arise...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1994
ISSN: 0021-9738
DOI: 10.1172/jci117385