Fig. 4. Raft and nonraft proteins home to their native cluster environment after PEG-induced fusion of Kit225 K6 human T cells. Cells were labeled and analyzed using the same procedures as those described in the legend to Fig. 3. Results are mean±s.e.m. A and B refer to data from FRET and SNOM experiments, respectively. Cell-surface receptor pairs were as follows: (A) CD48 and CD48, (B) TrfR and TrfR, (C) IL-2R subunit and IL-2R subunit, (D) IL-2 receptor subunit and IL-2R receptor subunit in the presence of AlF₃, (E) MHC-I and MHC-I, (F) CD48 and TrfR.