PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15722549-2 2005 In mice, scrapie incubation time is controlled by polymorphisms at PrP codons 108 (leucine or phenylalanine) and 189 (threonine or valine), but the precise role of each polymorphism in the control of disease is unknown. Threonine 118-127 prion protein Mus musculus 67-70