Macrocycle-stabilization of its interaction with 14-3-3 increases plasma membrane localization and activity of CFTR

Mutations in the chloride channel CFTR that impair plasma membrane insertion and ion transport are the cause of cystic fibrosis. Here, the authors identify a macrocycle that stabilizes the interaction of mutant CFTR with the chaperone-like protein 14-3-3 and rescues its biological function.