FIG. 6.

Infection with SFFV activates transcription of c-jun and junB in HCD-57 cells. Uninfected and SFFV-infected HCD-57 cells were starved overnight in 1.5% FCS and either left unstimulated (−) or stimulated with Epo for 15 min (+). RNA was extracted and analyzed by Northern blotting as described in Materials and Methods. The filters were sequentially probed with radiolabeled cDNAs specific for either c-jun and actin (A) or junB and actin (B).