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Related Experiment Video

Updated: May 23, 2026

Assessing Transmissible Spongiform Encephalopathy Species Barriers with an In Vitro Prion Protein Conversion Assay

Assessing Transmissible Spongiform Encephalopathy Species Barriers with an In Vitro Prion Protein Conversion Assay

Published on: March 10, 2015

Early structural features in mammalian prion conformation conversion.

Giuseppe Legname¹

¹Laboratory of Prion Biology, Neurobiology Sector, Scuola Internazionale Superiore di Studi Avanzati-SISSA, Trieste, Italy. legname@sissa.it

|March 29, 2012

Summary

Researchers investigated familial prion disease mutations using molecular dynamics. Simulations revealed common folding patterns in the prion protein

Area of Science:

Neuroscience
Biochemistry
Structural Biology

Background:

Prion diseases involve the conversion of cellular prion protein (PrP(C)) to a disease-associated form (PrP(Sc)).
Sporadic prion diseases, accounting for 85% of human cases, involve PrP(C) to PrP(Sc) conversion via an unknown mechanism.
Familial prion diseases, approximately 15% of cases, are linked to mutations in the PRNP gene.

Purpose of the Study:

To investigate the structural impact of PRNP gene mutations on the cellular prion protein (PrP(C)).
To understand early conformational changes in PrP(C) that may lead to the formation of the disease-associated PrP(Sc) conformer.

Main Methods:

Molecular dynamics simulations were performed on various PrP(C) mutants associated with familial prion diseases.

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Assessing Transmissible Spongiform Encephalopathy Species Barriers with an In Vitro Prion Protein Conversion Assay

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Published on: March 10, 2015

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Protein Misfolding Cyclic Amplification of Prions

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Published on: November 7, 2012

Structural analysis focused on mutations located within the globular domain of the prion protein.

Main Results:

Simulations revealed common folding traits among different point mutations in the globular domain of PrP(C).
These findings provide insights into the initial conformational alterations preceding PrP(Sc) formation.

Conclusions:

The identified common folding traits offer a potential understanding of early events in prion formation.
These results support recent experimental data and suggest novel approaches for identifying initial structural determinants of prion diseases.