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Understanding prion structure and conversion.

Giovanni Spagnolli1, Jesús R Requena2, Emiliano Biasini1

  • 1Department of Cellular, Computational and Integrative Biology (CIBIO), Trento, TN, Italy; Dulbecco Telethon Institute, University of Trento, Trento, TN, Italy.

Progress in Molecular Biology and Translational Science
|September 22, 2020
PubMed
Summary
This summary is machine-generated.

Prion protein structure (PrPSc) remains elusive due to insolubility, hindering prion disease therapy. Advanced computational models are emerging to explain prion structure and replication mechanisms.

Keywords:
Molecular modelingPrP(Sc)PrionPrion diseasesProtein structure

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Area of Science:

  • Neuroscience
  • Structural Biology
  • Biochemistry

Background:

  • Prions are infectious agents that challenge traditional genetic inheritance concepts.
  • The high-resolution structure of the infectious prion protein (PrPSc) has been difficult to determine due to its insolubility and aggregation.
  • Lack of structural information impedes the development of therapies for prion diseases.

Purpose of the Study:

  • To review studies on the conformation of infectious PrPSc.
  • To provide an overview of current molecular models for prion structure and conversion.
  • To highlight the role of computational approaches in understanding prion architecture.

Main Methods:

  • Review of experimental studies providing constraints on PrPSc structure.
  • Analysis of existing low-resolution structural data.
  • Overview of computational modeling techniques applied to prion structure.

Main Results:

  • Despite challenges, experimental data offer insights into PrPSc conformation.
  • Computer-aided technologies are increasingly used to model prion architecture.
  • Existing models provide a basis for understanding prion templated replication.

Conclusions:

  • Elucidating PrPSc structure is crucial for developing effective prion disease therapies.
  • Computational modeling shows promise in overcoming experimental limitations.
  • Further research integrating experimental and computational approaches is needed to fully understand prion structure and conversion.