N-terminal Domain of Prion Protein Directs Its Oligomeric Association

Trevitt, Clare R., Hosszu, Laszlo L. P., Batchelor, Mark, Panico, Silvia, Terry, Cassandra, Nicoll, Andrew J., Risse, Emmanuel, Taylor, William A., Sandberg, Malin K., Al-Doujaily, Huda, Linehan, Jacqueline M., Saibil, Helen R., Scott, David J., Collinge, John, Waltho, Jonathan P. and Clarke, Anthony R. (2014) N-terminal Domain of Prion Protein Directs Its Oligomeric Association. Journal of Biological Chemistry, 289 (37). pp. 25497-25508. ISSN 0021-9258

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Abstract / Description

The self-association of prion protein (PrP) is a critical step in the pathology of prion diseases. It is increasingly recognized that small non-fibrillar β-sheet-rich oligomers of PrP may be of crucial importance in the prion disease process. Here, we characterize the structure of a well defined β-sheet-rich oligomer, containing ∼12 PrP molecules, and often enclosing a central cavity, formed using full-length recombinant PrP. The N-terminal region of prion protein (residues 23-90) is required for the formation of this distinct oligomer; a truncated form comprising residues 91-231 forms a broad distribution of aggregated species. No infectivity or toxicity was found using cell and animal model systems. This study demonstrates that examination of the full repertoire of conformers and assembly states that can be accessed by PrP under specific experimental conditions should ideally be done using the full-length protein.

Item Type:	Article
Uncontrolled Keywords:	prion protein (PrP)
Subjects:	500 Natural Sciences and Mathematics > 570 Life sciences; biology
Department:	School of Human Sciences
Depositing User:	Cassandra Terry
Date Deposited:	19 Nov 2018 11:02
Last Modified:	28 Apr 2020 14:45
URI:	https://repository.londonmet.ac.uk/id/eprint/3844

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