N-terminal deletion does not affect α-synuclein membrane binding, self-association and toxicity in human neuroblastoma cells, unlike yeast

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چکیده

منابع مشابه

The Impact of N-terminal Acetylation of α-Synuclein on Phospholipid Membrane Binding and Fibril Structure*

Human α-synuclein (αS) has been shown to be N terminally acetylated in its physiological state. This modification is proposed to modulate the function and aggregation of αS into amyloid fibrils. Using bacterially expressed acetylated-αS (NTAc-αS) and endogenous αS (Endo-αS) from human erythrocytes, we show that N-terminal acetylation has little impact on αS binding to anionic membranes and thus...

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α-Synuclein: membrane interactions and toxicity in Parkinson's disease.

In the late 1990s, mutations in the synaptic protein α-synuclein (α-syn) were identified in families with hereditary Parkinson's disease (PD). Rapidly, α-syn became the target of numerous investigations that have transformed our understanding of the pathogenesis underlying this disorder. α-Syn is the major component of Lewy bodies (LBs), cytoplasmic protein aggregate...

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Novel suppressors of α-synuclein toxicity identified using yeast

The mechanism by which the Parkinson's disease-related protein alpha-synuclein (alpha-syn) causes neurodegeneration has not been elucidated. To determine the genes that protect cells from alpha-syn, we used a genetic screen to identify suppressors of the super sensitivity of the yeast Saccharomyces cerevisiae expressing alpha-syn to killing by hydrogen peroxide. Forty genes in ubiquitin-depende...

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Loss of α-Synuclein Does Not Affect Mitochondrial Bioenergetics in Rodent Neurons

Increased α-synuclein (αsyn) and mitochondrial dysfunction play central roles in the pathogenesis of Parkinson's disease (PD), and lowering αsyn is under intensive investigation as a therapeutic strategy for PD. Increased αsyn levels disrupt mitochondria and impair respiration, while reduced αsyn protects against mitochondrial toxins, suggesting that interactions between αsyn and mitochondria i...

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Membrane Binding and Self-Association of the Epsin N-Terminal Homology Domain

Epsin possesses a conserved epsin N-terminal homology (ENTH) domain that acts as a phosphatidylinositol 4,5-bisphosphate-lipid-targeting and membrane-curvature-generating element. Upon binding phosphatidylinositol 4,5-bisphosphate, the N-terminal helix (H(0)) of the ENTH domain becomes structured and aids in the aggregation of ENTH domains, which results in extensive membrane remodeling. In thi...

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ژورنال

عنوان ژورنال: Journal of Neurochemistry

سال: 2011

ISSN: 0022-3042

DOI: 10.1111/j.1471-4159.2011.07431.x