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In Vitro Seeding Activity of Glycoform-Deficient Prions from Variably Protease-Sensitive Prionopathy and Familial CJD Associated with PrPV180I Mutation.


ABSTRACT: Both sporadic variably protease-sensitive prionopathy (VPSPr) and familial Creutzfeldt-Jakob disease linked to the prion protein (PrP) V180I mutation (fCJDV180I) have been found to share a unique pathological prion protein (PrPSc) that lacks the protease-resistant PrPSc glycosylated at residue 181 because two of four PrP glycoforms are apparently not converted into the PrPSc from their cellular PrP (PrPC). To investigate the seeding activity of these unique PrPSc molecules, we conducted in vitro prion conversion experiments using serial protein misfolding cyclic amplification (sPMCA) and real-time quaking-induced conversion (RT-QuIC) assays with different PrPC substrates. We observed that the seeding of PrPSc

SUBMITTER: Wang Z 

PROVIDER: S-EPMC6614145 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature