The function of α-synuclein.
The function of α-synuclein.
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DOI:
10.1016/j.neuron.2013.09.004
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发表时间:
2013-09-18
期刊:
影响因子:
16.2
通讯作者:
Edwards RH
中科院分区:
文献类型:
--
作者:
Bendor JT;Logan TP;Edwards RH
Human genetics has indicated a causal role for the protein α-synuclein in the pathogenesis of familial Parkinson’s disease (PD), and the aggregation of synuclein in essentially all patients with PD suggests a central role for this protein in the sporadic disorder. Indeed, the accumulation of misfolded α-synuclein now defines multiple forms of neural degeneration. Like many of the proteins that accumulate in other neurodegenerative disorders, however, the normal function of synuclein remains poorly understood. α-Synuclein localizes specifically to the nerve terminal and inhibits neurotransmitter release when over-expressed, but the knockout has a modest effect on synaptic transmission, suggesting alternative presynaptic roles. Natively unstructured, synuclein adopts a helical conformation on membrane binding and recent work suggests a role in membrane remodeling. In neural degeneration, synuclein misfolds and aggregates as a β-sheet. Multiple observations now suggest propagation of the misfolded protein as a prion, providing a mechanism for the spread of degeneration through the neuraxis. However, the factors that trigger the original misfolding remain unknown.
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DOI:
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Traffic (Copenhagen, Denmark)
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