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KMID : 0617319980070010201
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Journal of Pharmacetical Sceiences Ewha Womans University
1998 Volume.7 No. 1 p.201 ~ p.204
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Studies on the Interaction of Glut4 and Cytoskeletal Protein
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Abstract
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The glucose transporters found in the plasma membrane of all animal cells are known to have 12 putative transmembrane domains. Among 7 cytoplasmic loops, the fourth loop is the largest one. Since previous studies showed that cofilin, an actin-modulating protein, was found to interact with the largest cytoplasmic loop of (Na,K)ATPase, we tested if cofilin interacts with the largest cytoplasmic loop of Glut4. We demonstrated by the two-hybrid system that the largest cytoplasmic loop of Glut4 did not show any interaction with cofilin, suggesting that cofilin is not required for the membrane targeting process of other membrane proteins but only for a P-type ATPase.
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