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Cited by 649

The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.

Alzheimer's Disease Amyloid-β Binds Copper and Zinc to Generate an Allosterically Ordered Membrane-penetrating Structure Containing Superoxide Dismutase-like Subunits

Open access
Curtain, Cyril C., Ali, Feda, Volitakis, Irene, Cherny, Robert A., Norton, Raymond S., Beyreuther, Konrad, Barrow, Colin J., Masters, Colin L., Bush, Ashley I., Barnham, Kevin J.·2001·Journal of Biological Chemistry

Abstract

Amyloid beta peptide (Abeta) is the major constituent of extracellular plaques and perivascular amyloid deposits, the pathognomonic neuropathological lesions of Alzheimer's disease. Cu(2+) and Zn(2+) bind Abeta, inducing aggregation and giving rise to reactive oxygen species. These reactions may play a deleterious role in the disease state, because high concentrations of iron, copper, and zinc have been located in amyloid in diseased brains. Here we show that coordination of metal ions to Abeta is the same in both aqueous solution and lipid environments, with His(6), His(13), and His(14) all involved. At Cu(2+)/peptide molar ratios >0.3, Abeta coordinated a second Cu(2+) atom in a highly cooperative manner. This effect was abolished if the histidine residues were methylated at N(epsilon)2, indicating the presence of bridging histidine residues, as found in the active site of superoxide dismutase. Addition of Cu(2+) or Zn(2+) to Abeta in a negatively charged lipid environment caused a conformational change from beta-sheet to alpha-helix, accompanied by peptide oligomerization and membrane penetration. These results suggest that metal binding to Abeta generated an allosterically ordered membrane-penetrating oligomer linked by superoxide dismutase-like bridging histidine residues.

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Metadata

Authors
Curtain, C. C., Ali, F., Volitakis, I., Cherny, R. A., Norton, R. S., Beyreuther, K., Barrow, C. J., Masters, C. L., Bush, A. I., & Barnham, K. J.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2001-01
Volume
276
Issue
23
Pages
20466-20473
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2052120254
Cited by
649
References
58
FWCI
20.45
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Alzheimer's Disease Amyloid-β Binds Copper and Zinc to Generate an Allosterically Ordered Membrane-penetrating Structure Containing Superoxide Dismutase-like Subunits. https://app.cochat.ai/papers/10.1074/jbc.m100175200
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Curtain, C. C., Ali, F., Volitakis, I., Cherny, R. A., Norton, R. S., Beyreuther, K., Barrow, C. J., Masters, C. L., Bush, A. I., & Barnham, K. J. (2001). Alzheimer's Disease Amyloid-β Binds Copper and Zinc to Generate an Allosterically Ordered Membrane-penetrating Structure Containing Superoxide Dismutase-like Subunits. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m100175200

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