Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/5827
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dc.contributor.authorBinolfi, Aen_us
dc.contributor.authorRODRIGUEZ E., Een_us
dc.contributor.authorValensin, Danielaen_us
dc.contributor.authorD'Amelio, Nen_us
dc.contributor.authorIppoliti, Een_us
dc.contributor.authorObal, Gen_us
dc.contributor.authorDuran, Ren_us
dc.contributor.authorMagistrato, Aen_us
dc.contributor.authorPritsch, Oen_us
dc.contributor.authorZweckstetter, Men_us
dc.contributor.authorValensin, Giannien_us
dc.contributor.authorCarloni, Pen_us
dc.contributor.authorQuintanar, Len_us
dc.contributor.authorGriesinger, Cen_us
dc.contributor.authorFernandez, C. O.en_us
dc.date.accessioned2021-03-30T15:55:26Z-
dc.date.available2021-03-30T15:55:26Z-
dc.date.issued2010-
dc.identifier.issn0020-1669en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12779/5827-
dc.description26955en_US
dc.description.abstractThe aggregation of alpha-synuclein (AS) is a critical step in the etiology of Parkinson’s disease (PD). A central, unresolved question in the pathophysiology of PD relates to the role of AS-metal interactions in amyloid fibril formation and neurodegeneration. Our previous works established a hierarchy in alpha-synuclein-metal ion interactions, where Cu(II) binds specifically to the protein and triggers its aggregation under conditions that might be relevant for the development of PD. Two independent, non-interacting copper-binding sites were identified at the N-terminal region of AS, with significant difference in their affinities for the metal ion. In this work we have solved unknown details related to the structural binding specificity and aggregation enhancement mediated by Cu(II). The high-resolution structural characterization of the highest affinity N-terminus AS-Cu(II) complex is reported here. Through the measurement of AS aggregation kinetics we proved conclusively that the copper-enhanced AS amyloid formation is a direct consequence of the formation of the AS-Cu(II) complex at the highest affinity binding site. The kinetic behavior was not influenced by the His residue at position 50, arguing against an active role for this residue in the structural and biological events involved in the mechanism of copper-mediated AS aggregation. These new findings are central to elucidate the mechanism through which the metal ion participates in the fibrillization of AS and represent relevant progress in the understanding of the bionorganic chemistry of PD.en_US
dc.language.isoenen_US
dc.relationNoneen_US
dc.relation.ispartofINORGANIC CHEMISTRYen_US
dc.titleBioinorganic Chemistry of Parkinson's Disease: Structural Determinants for the Copper-Mediated Amyloid Formation of Alpha-Synucleinen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/ic1016752en_US
dc.identifier.scopus2-s2.0-78149352935en_US
dc.identifier.isiWOS:000283810800058en_US
dc.relation.volume49en_US
dc.description.firstpage10668en_US
dc.description.lastpage10679en_US
dc.description.thirdmissionNot applicableen_US
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeArticle-
item.fulltextNo Fulltext-
crisitem.author.orcid0000-0003-4187-3919-
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