(a) IFA of CHO cells transfected with 5 µg or 1 µg of iDNA (upper panel) or with 105 PFU of TC-83 virus (lower panel).
(b) Growth curves of TC-83 viruses in virus-infected and in iDNA-transfected CHO cells. Left panel, CHO cells were either infected with 104–105 PFU of virus, or transfected with 0.2–5 µg of pTC83 iDNA. Right panel, CHO cells were transfected with 8 ng to 1 µg of pTC83 iDNA. Plaque titer was determined in duplicates, error bars are not visible at the scale shown.