INA-UV treatment affects the translational diffusion of proteins in the cell membrane. Fluorescence recovery after photobleaching (FRAP) of CCR5-GFP expressed in Hela cells treated or not with 20 μM INA-UV. A. Fluorescence signal recovery as a function of time after photobleaching. B. Computed mobile fraction of CCR5-GFP in control cells and cells treated with 20 μM INA-UV. Data are mean ± S.D of seven measurements.