Cell surface expression of F508del CFTR rescued by CT18L F508delCFTR expressing HEK cells were treated with CT18lL (260pM) for 4hr at 37°C and compared to control untreated cells by double labeling with wheat germ agglutinin to label the cell surface, and MabM3A7 anti CFTR.

<p>Colabelling (yellow) was only seen for treated cells. This experiment was repeated four times. Bar = 20μm.