Fig 2.

Growth kinetics of WT and mutant SFV on CHO and FD11 cells. Control (A) and FD11 furin-deficient (B) CHO cells were infected with WT or mutant viruses at a multiplicity of infection of 0.01 PFU/cell for 90 min at 37°C. After infection, cells were washed twice with serum-free media. At the indicated time postinfection, the virus secreted into the media was collected and the titer was determined by plaque assay on BHK cells. Data represent the results of 2 independent experiments.