Stereocontrolled protein surface recognition using chiral oligoamide proteomimetic foldamers.

The development of foldamers capable of selective molecular recognition of solvent exposed protein surfaces represents an outstanding challenge in supramolecular chemical biology. Here we introduce an oligoamide foldamer with well-defined conformation that bears all the hallmarks of an information rich oligomer. Specifically, the foldamer recognizes its target protein DM2 leading to inhibition of its protein-protein interaction with p53 in a manner that depends upon the composition, spatial projection and stereochemistry of functional groups appended to the scaffold. Most significantly, selective inhibition of p53/DM2 can be achieved against four other targets and the selectivity for p53/DM2 inhibition Mcl-1/NOXA-B inhibition is critically dependent upon the stereochemistry of the helix mimetic.