FIG. 2.

Cell surface expression of the HIV envelope glycoprotein. Transfected Jurkat cells were subjected to FACS analysis with an anti-HIV antiserum on unfixed cells. The analysis was performed on day 9 posttransfection (a) as well as on chronically infected Jurkat cells induced with PMA soon after chronic infection was established (b). For both panels, results are presented for the mock infection (noninfected) and infection with wild-type, mutant Y712S (identical results were obtained with Y712A), and mutant Y712F viruses.