Identification of the minimal copper(II)-binding alpha-synuclein sequence.
Identification of the minimal copper(II)-binding alpha-synuclein sequence.
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DOI:
10.1021/ic901157w
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发表时间:
2009-10-05
影响因子:
4.6
通讯作者:
Lee, Jennifer C.
中科院分区:
文献类型:
--
作者:
Jackson, Mark S.;Lee, Jennifer C.
Parkinson’s disease has been long linked to environmental factors, such as transition metals and recently to α-synuclein, a presynaptic protein. Using tryptophan-containing peptides, we identified the minimal Cu(II)-binding sequence to be within the first four residues, MDV(F/W), anchored by the α-amino terminus. In addition, mutant peptide 1–10 (Lys→Arg) verified that neither Lys6 or Lys10 are necessary for Cu(II) binding. Interestingly, Trp4 excited-state decay kinetics measured for peptides and proteins reveal two quenching modes, possibly arising from two distinct Cu(II)-polypeptide structures.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1016/j.bbrc.2009.01.103
发表时间:
2009-03-06
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