Fig 1. Western blot analysis of PrP^res levels in brainstem homogenates from cattle affected by classical or atypical BSE.

Homogenates were subjected to proteinase K digestion followed by immunoblotting using Sha31 monoclonal antibody. Dilutions of a C-BSE sample (02–2872) are indicated, along with samples from each C-, H- and L-BSE group. The numbers 1 to 20 refer to cattle identity indicated in Table 1.