Assertion: normal prion | /r/CapableOf | change into abnormal one
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text: Spongiform encephalopathies can develop three different ways, either by a normal prion changing into an abnormal one, or the PRNP gene that targets the creation of a protein which mutates into an abnormal protein, or consumption of contaminated items (Hinz, A., Doremus, C., 1997).