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The Development and Application of Biophysical Assays for Evaluating Ternary Complex Formation Induced by Proteolysis Targeting Chimeras (PROTACS)

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[Interaction between various 14-3-3beta segments and PrP in vitro].

Ying-Hui Liu¹, Yan-Ling Han, Juan Song

¹State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China.

Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi = Zhonghua Shiyan He Linchuang Bingduxue Zazhi = Chinese Journal of Experimental and Clinical Virology

|December 29, 2010

Summary

Prion protein (PrP) interacts with 14-3-3beta protein in both healthy and scrapie-infected hamster brains. This interaction, involving the N-terminal domain of 14-3-3beta, may play a role in prion disease.

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Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay (PCA) in Living Cells

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Area of Science:

Neurobiology
Protein biochemistry

Context:

Prion diseases are fatal neurodegenerative disorders.
The prion protein (PrP) is central to prion disease pathogenesis.
14-3-3beta proteins are involved in various cellular processes.

Purpose:

To investigate the molecular interaction between prion protein (PrP) and 14-3-3beta protein.
To identify the specific domains involved in the PrP-14-3-3beta interaction.

Summary:

Both native PrP(c) and its pathogenic isoform PrP(Sc) form complexes with 14-3-3beta.
Recombinant full-length 14-3-3beta proteins interact with PrP.
The N-terminal domain of 14-3-3beta (residues 1-38) is responsible for this interaction.

Impact:

This study elucidates a novel protein-protein interaction relevant to prion biology.
Understanding the PrP-14-3-3beta association may offer new therapeutic targets for prion diseases.
Further research into 14-3-3beta's role could advance our knowledge of PrP function and disease mechanisms.