The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo

Abstract Scrapie prion, PrPSc, formation is the central event of all types of transmissible spongiform encephalopathies (TSEs), while the pathway with possible intermediates and their mechanism of formation from the normal isoform of prion (PrP), remains not fully understood. Recently, the G127V var...

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Autores principales: Sudheer Babu Sangeetham, Anna Dorothee Engelke, Elfrieda Fodor, Sarah Laura Krausz, Jörg Tatzelt, Ervin Welker
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:c043bbcf337e4e7aaaff2a79aaf275662021-12-02T10:44:15ZThe G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo10.1038/s41598-021-82647-w2045-2322https://doaj.org/article/c043bbcf337e4e7aaaff2a79aaf275662021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82647-whttps://doaj.org/toc/2045-2322Abstract Scrapie prion, PrPSc, formation is the central event of all types of transmissible spongiform encephalopathies (TSEs), while the pathway with possible intermediates and their mechanism of formation from the normal isoform of prion (PrP), remains not fully understood. Recently, the G127V variant of the human PrP is reported to render the protein refractory to transmission of TSEs, via a yet unknown mechanism. Molecular dynamics studies suggested that this mutation interferes with the formation of PrP dimers. Here we analyze the dimerization of 127G and 127VPrP, in both in vitro and a mammalian cell culture system. Our results show that while molecular dynamics may capture the features affecting dimerization in vitro, G127V inhibiting dimer formation of PrP, these are not evidenced in a more complex cellular system.Sudheer Babu SangeethamAnna Dorothee EngelkeElfrieda FodorSarah Laura KrauszJörg TatzeltErvin WelkerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Sudheer Babu Sangeetham
Anna Dorothee Engelke
Elfrieda Fodor
Sarah Laura Krausz
Jörg Tatzelt
Ervin Welker
The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
description Abstract Scrapie prion, PrPSc, formation is the central event of all types of transmissible spongiform encephalopathies (TSEs), while the pathway with possible intermediates and their mechanism of formation from the normal isoform of prion (PrP), remains not fully understood. Recently, the G127V variant of the human PrP is reported to render the protein refractory to transmission of TSEs, via a yet unknown mechanism. Molecular dynamics studies suggested that this mutation interferes with the formation of PrP dimers. Here we analyze the dimerization of 127G and 127VPrP, in both in vitro and a mammalian cell culture system. Our results show that while molecular dynamics may capture the features affecting dimerization in vitro, G127V inhibiting dimer formation of PrP, these are not evidenced in a more complex cellular system.
format article
author Sudheer Babu Sangeetham
Anna Dorothee Engelke
Elfrieda Fodor
Sarah Laura Krausz
Jörg Tatzelt
Ervin Welker
author_facet Sudheer Babu Sangeetham
Anna Dorothee Engelke
Elfrieda Fodor
Sarah Laura Krausz
Jörg Tatzelt
Ervin Welker
author_sort Sudheer Babu Sangeetham
title The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
title_short The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
title_full The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
title_fullStr The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
title_full_unstemmed The G127V variant of the prion protein interferes with dimer formation in vitro but not in cellulo
title_sort g127v variant of the prion protein interferes with dimer formation in vitro but not in cellulo
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/c043bbcf337e4e7aaaff2a79aaf27566
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