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. 1992 Dec;26(3):241-54.
doi: 10.1016/0168-1702(92)90016-3.

Analysis of Creutzfeldt-Jakob disease infectious fractions by gel permeation chromatography and sedimentation field flow fractionation

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Analysis of Creutzfeldt-Jakob disease infectious fractions by gel permeation chromatography and sedimentation field flow fractionation

T Sklaviadis et al. Virus Res. 1992 Dec.

Abstract

Gel permeation chromatography and sedimentation field flow fractionation (SF3) were used to further analyze highly infectious fractions from Creutzfeldt-Jakob disease (CJD) infected hamster brain. These analyses defined the relative molecular mass and physical size of the Creutzfeldt-Jakob disease (CJD) agent with greater precision than previously possible. Highly purified disaggregated fractions yielded single, homogeneous Gaussian peaks with both methods. The relevant analytical peaks contained protein-nucleic acid complexes with an M(r) of approximately 1.5 x 10(7) daltons and a mean radius of approximately 30 nm. The experimental evidence further solidifies the concept of an infectious agent that resembles a viral core rather than a simple protein.

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