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Proteinase K-Resistant Aggregates of Recombinant Prion Protein PrP-(23-98) Are Toxic to Cultured Cells

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Here, we show for the first time that non-fibrillar and spherical aggregates produced from PrP-(23-98) in the presence of NADPH plus copper ions are toxic to cultured cells and induce apoptotic signals. It is also confirmed that endogenous cellular PrP isoform is not required for toxicity to occur.

Keywords: PrP-(23-98); PrP-deficient cell line; Prion protein; aggregates; apoptosis; cytotoxicity

Document Type: Research Article


Publication date: January 1, 2009

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.

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