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. 1996 Sep 20;86(6):917-27.
doi: 10.1016/s0092-8674(00)80167-1.

Anion exchanger 1 (band 3) is required to prevent erythrocyte membrane surface loss but not to form the membrane skeleton

L L Peters  1 , R A Shivdasani, S C Liu, M Hanspal, K M John, J M Gonzalez, C Brugnara, B Gwynn, N Mohandas, S L Alper, S H Orkin, S E Lux
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V体育官网 - Anion exchanger 1 (band 3) is required to prevent erythrocyte membrane surface loss but not to form the membrane skeleton

L L Peters et al. Cell. .
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Abstract (VSports app下载)

The red blood cell (RBC) membrane protein AE1 provides high affinity binding sites for the membrane skeleton, a structure critical to RBC integrity. AE1 biosynthesis is postulated to be required for terminal erythropoiesis and membrane skeleton assembly. We used targeted mutagenesis to assess AE1 function in vivo VSports手机版. RBCs lacking AE1 spontaneously shed membrane vesicles and tubules, leading to severe spherocytosis and hemolysis, but the levels of the major skeleton components, the synthesis of spectrin in mutant erythroblasts, and skeletal architecture are normal or nearly normal. The results indicate that AE1 does not regulate RBC membrane skeleton assembly in vivo but is essential for membrane stability. We postulate that stabilization is achieved through AE1-lipid interactions and that loss of these interactions is a key pathogenic event in hereditary spherocytosis. .

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