Altered structure and anion transport properties of band 3 (AE1, SLC4A1) in human red cells lacking glycophorin A.

Abstract excerpt

We have studied the properties of band 3 in different glycophorin A (GPA)-deficient red cells. These red cells lack either both GPA and glycophorin B (GPB) (M(k)M(k) cells) or GPA (En(a-) cells) or contain a hybrid of GPA and GPB (MiV cells). Sulfate transport was reduced in all three red cell types to approximately 60% of that in normal control red cells as a result of an increased apparent K(m) for sulfate....

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