FIG. 3.
RIPA of the JV capsid protein produced by in vitro transcription/translation. Lane A, preinfection serum from a colostrum-deprived, newborn calf. Lane B, serum taken at 4 weeks postinfection with JV. The position of the immunoprecipitated capsid protein is marked (arrow). Molecular size markers (in kilodaltons) are on the left.