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Cited by 187

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Copper-mediated Amyloid-β Toxicity Is Associated with an Intermolecular Histidine Bridge

Open access
Smith, David P., Smith, Danielle G., Curtain, Cyril C., Boas, John F., Pilbrow, John R., Ciccotosto, Giuseppe D., Lau, Tong-Lay, Tew, Deborah J., Perez, Keyla, Wade, John D., Bush, Ashley I., Drew, Simon C., Separovic, Frances, Masters, Colin L., Cappai, Roberto, Barnham, Kevin J.·2006·Journal of Biological Chemistry

Abstract

Amyloid-beta peptide (Abeta) is pivotal to the pathogenesis of Alzheimer disease. Here we report the formation of a toxic Abeta-Cu2+ complex formed via a histidine-bridged dimer, as observed at Cu2+/peptide ratios of >0.6:1 by EPR spectroscopy. The toxicity of the Abeta-Cu2+ complex to cultured primary cortical neurons was attenuated when either the pi -or tau-nitrogen of the imidazole side chains of His were methylated, thereby inhibiting formation of the His bridge. Toxicity did not correlate with the ability to form amyloid or perturb the acyl-chain region of a lipid membrane as measured by diphenyl-1,3,5-hexatriene anisotropy, but did correlate with lipid peroxidation and dityrosine formation. 31P magic angle spinning solid-state NMR showed that Abeta and Abeta-Cu2+ complexes interacted at the surface of a lipid membrane. These findings indicate that the generation of the Abeta toxic species is modulated by the Cu2+ concentration and the ability to form an intermolecular His bridge.

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Metadata

Authors
Smith, D. P., Smith, D. G., Curtain, C. C., Boas, J. F., Pilbrow, J. R., Ciccotosto, G. D., Lau, T.-L., Tew, D. J., Perez, K., Wade, J. D., Bush, A. I., Drew, S. C., Separovic, F., Masters, C. L., Cappai, R., & Barnham, K. J.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2006-06
Volume
281
Issue
22
Pages
15145-15154
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2113472155
Cited by
187
References
7
FWCI
11.37
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Copper-mediated Amyloid-β Toxicity Is Associated with an Intermolecular Histidine Bridge. https://app.cochat.ai/papers/10.1074/jbc.m600417200
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Smith, D. P., Smith, D. G., Curtain, C. C., Boas, J. F., Pilbrow, J. R., Ciccotosto, G. D., Lau, T.-L., Tew, D. J., Perez, K., Wade, J. D., Bush, A. I., Drew, S. C., Separovic, F., Masters, C. L., Cappai, R., & Barnham, K. J. (2006). Copper-mediated Amyloid-β Toxicity Is Associated with an Intermolecular Histidine Bridge. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m600417200

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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