Figure 4From: Construction and characterization of an infectious replication competent clone of porcine endogenous retrovirus from Chinese miniature pigsDetection of PERV Gag expression. (A) indirect Immunofluorescence assay for PK-15cells; (B) Immunofluorescence assay for HEK 293 cells infected with the virus derived from the clone; (C) Immunofluorescence assay for HEK293 cells as negative. Gag expression was detected in PK-15cells and infected HEK293 cells.Back to article page