Figure 2. Synthetic FKBP ligands stabilize the V2A-YFP fusion protein.
A, Chemical structures of FKBP ligands.
B, NIH3T3 cells stably expressing the V2A-YFP fusion protein were treated with 3-fold dilutions of each FKBP ligand (10 μM to 300 nM). YFP expression levels were measured upon treatment with SLF* acid (diamonds), SLF*-N (squares), SLF*-T (triangles) and Shield-1 (circles) by flow cytometry.
C, NIH3T3 cells stably expressing the V2A-YFP fusion protein were treated with 3-fold dilutions of Shield-1 (10 μM to 1 nM) and assayed by flow cytometry. Data are presented as the average MFI ± SEM relative to that of the F36V FKBP protein. The dotted line represents the YFP expression level for V2A-YFP in the absence of Shield-1.
