The prion domain NM of the yeast prion Sup35 was employed as non-pathogenic well investigated amyloid model protein to characterize its assembly behaviour and the influence of divalent metal ions thereon. In this work an alternative assembly pathway into a filamtous and non-amyloidogenic assembly form of NM was described. Although NM has no known metal binding motifs, complexation of copper, zinc, and manganese could be detected. Binding of divalent metal ions influenced nucleation, as a first step of fiber assembly, as well as amorphous aggregation. However, there was no apparent effect on fiber elongation.
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The prion domain NM of the yeast prion Sup35 was employed as non-pathogenic well investigated amyloid model protein to characterize its assembly behaviour and the influence of divalent metal ions thereon. In this work an alternative assembly pathway into a filamtous and non-amyloidogenic assembly form of NM was described. Although NM has no known metal binding motifs, complexation of copper, zinc, and manganese could be detected. Binding of divalent metal ions influenced nucleation, as a first s...
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