Table 1.

Prnp KO mouse lines analyzed in this study

Prnp KO mouse line ES cells Origin of ES cells Strain of partner of chimeric mouse Location of colony Reference 
PrnpZrchI/ZrchI AB1 129S7/SvEvBrd B6 Zurich, Switzerland Büeler et al. (1992)  
PrnpNgsk/Ngsk J1 129S4/SvJae B6 Nagasaki, Japan Sakaguchi et al. (1995)  
PrnpEdbg/Edbg E14 129/Ola 129/Ola Edinburgh, Scotland, UK Manson et al. (1994)  
PrnpGFP/GFP HM-1 129/Ola B6 Cambridge, MA Heikenwalder et al. (2008)  
PrnpRkn/Rkn E14 129P2/OlaHsd B6 Wako-shi, Japan Yokoyama et al. (2001)  
PrnpZrchII/ZrchII E14.1 129/OlaHsd B6 Zurich, Switzerland Rossi et al. (2001)  
PrnpRcm0/Rcm0 HM-1 129/Ola 129/Ola Edinburgh, Scotland, UK Moore et al. (1995)  
Prnp KO mouse line ES cells Origin of ES cells Strain of partner of chimeric mouse Location of colony Reference 
PrnpZrchI/ZrchI AB1 129S7/SvEvBrd B6 Zurich, Switzerland Büeler et al. (1992)  
PrnpNgsk/Ngsk J1 129S4/SvJae B6 Nagasaki, Japan Sakaguchi et al. (1995)  
PrnpEdbg/Edbg E14 129/Ola 129/Ola Edinburgh, Scotland, UK Manson et al. (1994)  
PrnpGFP/GFP HM-1 129/Ola B6 Cambridge, MA Heikenwalder et al. (2008)  
PrnpRkn/Rkn E14 129P2/OlaHsd B6 Wako-shi, Japan Yokoyama et al. (2001)  
PrnpZrchII/ZrchII E14.1 129/OlaHsd B6 Zurich, Switzerland Rossi et al. (2001)  
PrnpRcm0/Rcm0 HM-1 129/Ola 129/Ola Edinburgh, Scotland, UK Moore et al. (1995)  

The present study is based on the analysis of mice carrying seven independently generated Prnp-null alleles. PrnpEdbg/Edbg and PrnpRcm0/Rcm0 were always crossed to isogenic 129/Ola mice, whereas all other Prnp−/− mice were crossed to B6 mice and then kept on a mixed B6 and 129 background or further backcrossed to B6 or other strains.

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