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- W2067996936 abstract "The structure of wild-type mouse prion protein mPrP(23-231) consists of two distinctive segments with approximately equal size, a disordered and flexible N-terminal domain encompassing residues 23-124 and a largely structured C-terminal domain containing about 40% of helical structure and stabilized by one disulfide bond (Cys(178)-Cys(213)). We have expressed a mPrP mutant with 4 Ala/Ser-->Cys replacements, two each at the N-(Cys(36), Cys(112)) and C-(Cys(134), Cys(169)) domains. Our specific aims are to study the interaction between N- and C-domains of mPrP during the oxidative folding and to produce stabilized isomers of mPrP for further analysis. Oxidative folding of fully reduced mutant, mPrP(6C), generates one predominant 3-disulfide isomer, designated as N-mPrP(3SS), which comprises the native disulfide (Cys(178)-Cys(213)) and two non-native disulfide bonds (Cys(36)-Cys(134) and Cys(112)-Cys(169)) that covalently connect the N- and C-domains. In comparison to wild-type mPrP(23-231), N-mPrP(3SS) exhibits an indistinguishable CD spectra, a similar conformational stability in the absence of thiol and a reduced ability to aggregate. In the presence of thiol catalyst and denaturant, N-mPrP(3SS) unfolds and generates diverse isomers that are amenable to further isolation, structural and functional analysis." @default.
- W2067996936 created "2016-06-24" @default.
- W2067996936 creator A5041380617 @default.
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- W2067996936 date "2007-04-01" @default.
- W2067996936 modified "2023-09-23" @default.
- W2067996936 title "A 3-disulfide mutant of mouse prion protein expression, oxidative folding, reductive unfolding, conformational stability, aggregation and isomerization" @default.
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- W2067996936 doi "https://doi.org/10.1016/j.abb.2006.12.014" @default.
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