中国神经再生研究(英文版) ›› 2020, Vol. 15 ›› Issue (3): 407-415.doi: 10.4103/1673-5374.265792

• 综述:退行性病与再生 • 上一篇    下一篇

α-突触核蛋白形态的动态变化:生理学相关四聚体构象

  

  • 出版日期:2020-03-15 发布日期:2020-05-25

Navigating the dynamic landscape of alpha-synuclein morphology: a review of the physiologically relevant tetrameric conformation

Heather R. Lucas, Ricardo D. Fernández   

  1. Department of Chemistry, Virginia Commonwealth University, Richmond, VA, USA
  • Online:2020-03-15 Published:2020-05-25
  • Contact: Heather R. Lucas, PhD,hrlucas@vcu.edu.
  • Supported by:
    This work was supported in part by Award No. 18-7 (to HRL) from the Commonwealth of Virginia’s Alzheimer’s and Related Diseases Research Award Fund, administered by the Virginia Center on Aging.

摘要: orcid: 0000-0003-1207-7550 (Heather R. Lucas)

Abstract: N-acetylated α-synuclein (αSyn) has long been established as an intrinsically disordered protein associated with a dysfunctional role in Parkinson’s disease. In recent years, a physiologically relevant, higher order conformation has been identified as a helical tetramer that is tailored by buried hydrophobic interactions and is distinctively aggregation resistant. The canonical mechanism by which the tetramer assembles remains elusive. As novel biochemical approaches, computational methods, pioneering purification platforms, and powerful imaging techniques continue to develop, puzzling information that once sparked debate as to the veracity of the tetramer has now shed light upon this new counterpart in αSyn neurobiology. Nuclear magnetic resonance and computational studies on multimeric αSyn structure have revealed that the protein folding propensity is controlled by small energy barriers that enable large scale reconfiguration. Alternatively, familial mutations ablate tetramerization and reconfigure polymorphic fibrillization. In this review, we will discuss the dynamic landscape of αSyn quaternary structure with a focus on the tetrameric conformation.

Key words: alpha-synuclein, amyloid fibrils, intrinsically disordered protein, multimer, N-acetylation, oligomer, Parkinson’s disease, protein folding, protein structure, tetramer