http://www.cnr.it/ontology/cnr/individuo/prodotto/ID179439
Steered molecular dynamics studies reveal different unfolding pathways of prions from mammalian and non-mammalian species (Articolo in rivista)
- Type
- Label
- Steered molecular dynamics studies reveal different unfolding pathways of prions from mammalian and non-mammalian species (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1039/b700764g (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Danilo Milardi (2); Matteo Pappalardo; (1); Carmelo La Rosa (1); Domenico Grasso (1) (literal)
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- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) Dipartimento di Scienze Chimiche - Universita' di Catania; (2) Istituto di Biostrutture e Bioimmagini CNR-Sezione di Catania (literal)
- Titolo
- Steered molecular dynamics studies reveal different unfolding pathways of prions from mammalian and non-mammalian species (literal)
- Abstract
- Prion diseases are associated with an abnormal conformational transition involving the prion
protein and are known to affect mammals. Here, the different mechanical behaviour of two
mammalian, human (HuPrP) and Syrian hamster (ShaPrP), and two non-mammalian, chicken
(ChPrP) and turtle (TuPrP), prions was assessed by steered molecular dynamics simulations
performed on the globular domains of the four proteins. In mammalian prions a greater
resistance to external stretching forces and an earlier occurrence of irreversible events were
observed. The different unfolding profile of mammalian prions, ascribable to the intramolecular
interactions involving helix 1 with helix 3, implicate the existence of metastable non-native states
which may prompt abnormal pathways of protein misfolding and aggregation. (literal)
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