Design and Evolution of a Miniature Bcl-2 Binding Protein

Abstract
A major challenge for chemical biologists lies in the design of potent and selective ligands for protein surfaces. Here a protein grafting and evolution strategy is used to discover highly potent and specific miniature protein ligands (see picture) for human Bcl-2 and Bcl-XL. Miniature proteins could be used to dissect, modulate, or analyze a single protein function, irrespective of the other functions the protein may regulate within the proteome.