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Volumn 47, Issue 47, 2008, Pages 9084-9087

Structural studies of copper(I) complexes of amyloid-β peptide fragments: Formation of two-coordinate bis(histidine) complexes

Author keywords

Amyloids; Copper; EXAFS spectroscopy; Hydrogen peroxide; Reactive species

Indexed keywords

AMINES; CHEMICAL REACTIONS; COPPER; EXTENDED X RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY; GLYCOPROTEINS; HYDROGEN; HYDROGEN PEROXIDE; LIGANDS; LINEAR EQUATIONS; OXYGEN; REACTION KINETICS;

EID: 56249101018     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200803908     Document Type: Article
Times cited : (133)

References (44)
  • 17
    • 56249127667 scopus 로고    scopus 로고
    • Periodic reverse-phase HPLC confirmed that no peptide decomposition occurred when stored in this manner for weeks. No aggregation or precipitation occurred
    • Periodic reverse-phase HPLC confirmed that no peptide decomposition occurred when stored in this manner for weeks. No aggregation or precipitation occurred.
  • 18
    • 56249105597 scopus 로고    scopus 로고
    • See Supporting Information
    • See Supporting Information.
  • 40
    • 0033601338 scopus 로고    scopus 로고
    • X. D. Huang, et al., J. Biol. Chem. 1999, 274, 37111-37116.
    • (1999) J. Biol. Chem , vol.274 , pp. 37111-37116
    • Huang, X.D.1
  • 41
    • 56249105596 scopus 로고    scopus 로고
    • 2 is indicated;
    • 2 is indicated;
  • 42
    • 56249108527 scopus 로고    scopus 로고
    • I ion binds the peptide strongly. Quantitative determinations are in progress;
    • I ion binds the peptide strongly. Quantitative determinations are in progress;
  • 43
    • 56249130555 scopus 로고    scopus 로고
    • assayed yields of H2O2 are, at most, approximately 30, considering background and small amounts of Amplex oxidation by copper(II)-peptide and copper(I)-peptide/O2 (data not shown, It is unknown whether relative inefficiency of HRP/Amplex Red trapping is responsible for the sub-stoichiometric yield, or if the copper(I, II)-peptide itself consumes some peroxide. Catalase attenuates the signal. We are currently carrying out experiments to trace all copper(I) electron equivalents
    • 2 (data not shown). It is unknown whether relative inefficiency of HRP/Amplex Red trapping is responsible for the sub-stoichiometric yield, or if the copper(I)/(II)-peptide itself consumes some peroxide. Catalase attenuates the signal. We are currently carrying out experiments to "trace" all copper(I) electron equivalents.
  • 44
    • 49149124343 scopus 로고    scopus 로고
    • A recent publication implicates a soluble dimer (with two Aβ moities and, thus, possibly two Cu ions) as the minimal unit responsible for AD toxicity. See G. M. Shankar, S. Li, T. H. Mehta, A. García- Muñoz, N. E Shepardson, I. Smith, F. M. Brett, M. A. Farrell, M. J. Rowan, C. A. Lemere, C. M. Regan, D. M. Walsh, B. L. Sabatini, D. J. Selkoe, Nature Medicine 2008, 14, 837-842.
    • A recent publication implicates a soluble "dimer" (with two Aβ moities and, thus, possibly two Cu ions) as the minimal unit responsible for AD toxicity. See G. M. Shankar, S. Li, T. H. Mehta, A. García- Muñoz, N. E Shepardson, I. Smith, F. M. Brett, M. A. Farrell, M. J. Rowan, C. A. Lemere, C. M. Regan, D. M. Walsh, B. L. Sabatini, D. J. Selkoe, Nature Medicine 2008, 14, 837-842.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.