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Amyloid proteins pore formation

FIGURE 8.6 Pore formation by amyloid proteins a membrane-assisted process. Amyloid proteins that have acquired an a-helical structure upon binding to Kpid rafts can penetrate the membrane. The presence of cholesterol rmderneath the glycosphingoHpids (GSL) in lipid raft areas stimulates both the insertion of the protein within the membrane and its oligomerization into Ca -permeable pores. [Pg.191]

Lashuel, H. A., Petre, B. M., Wall, J., Simon, M., Nowak, R. J., Walz, T., and Lansbury, P. T., Jr. (2002). Alpha-synuclein, especially the Parkinson s disease-associated mutants, forms pore-like annular and tubular protofibrils./. Mol. Biol. 322,1089-1102. LeVine, H. (1993). Thioflavine T interaction with synthetic Alzheimer s disease beta-amyloid peptides Detection of amyloid aggregation in solution. Protein Sci. 2, 404—410. Lin, H., Bhatia, R., and Lai, R. (2001). Amyloid beta protein forms ion channels Implications for Alzheimer s disease pathophysiology. FASEB J. 15, 2433-2444. Lorenzo, A., and Yankner, B. A. (1994). Beta-amyloid neurotoxicity requires fibril formation and is inhibited by Congo red. Proc. Natl. Acad. Sci. USA 91, 12243-12247. Luhrs, T., Ritter, C., Adrian, M., Riek-Loher, D., Bohrmann, B., Dobeli, H., Schubert, D., and Riek, R. (2005). 3D structure of Alzheimer s amyl o id-( be la) (1—12) fibrils. Proc. Natl. Acad. Sci. USA 102, 17342-17347. [Pg.232]


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