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. 2019 Mar 26;9:5191. doi: 10.1038/s41598-019-41694-0

Figure 4.

Figure 4

Conformational stability immunoassay of resPrPD from brain of Tg40 inoculated with undiluted PMCA-treated vCJD urine or 1% vCJD BH revealed no statistically significant difference between curves depicting the rate of conversion of resPrPD to PK-sensitive PrP as a function of the amount of GdnHCl. The guanidine concentrations needed to render half of the PrPD sensitive to PK, [GdnHCl]1/2, were 1.31 ± 0.1 M and 1.4 ± 0.1 M, respectively (N = 3 for each group).