Figure 5.
The TEF protein is expressed on the cell surface and binds specifically to an ALV-E SU immunoadhesin. Human 293 cells transfected with plasmid pBKTEF24 or with no DNA (Mock) were bound to either SUB-rIgG (A) or SUE-rIgG (B), and flow cytometric analysis was performed as described previously (10). The pBKTEF24-expressing cells were specifically bound by SUE-rIgG but not by SUB-rIgG.