Chapter 101. Hemolytic Anemias and Anemia Due to Acute Blood Loss (Part 5)
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Hemolytic Anemias Due to Abnormalities of the MembraneCytoskeleton Complex The detailed architecture of the red cell membrane is complex, but its basic design is relatively simple (Fig. 101-2). The lipid bilayer, which incorporates phospholipids and cholesterol, is spanned by a number of proteins that have their hydrophobic transmembrane domains embedded in the membrane. Most of these proteins have hydrophilic domains extending toward both the outside and the inside of the cell. Other proteins are tethered to the membrane through a glycosylphosphatidylinositol (GPI) anchor, and they have only an extracellular domain. These proteins are arranged roughly perpendicular to or lying across...
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