Abstract: The present disclosure provides methods to identify peptides and small molecule moieties that are able to modulate protein-protein interactions (PPIs). Some moieties can disrupt specific PPIs within a complex, or disrupt variant-specific PPIs. Some moieties can alternatively bridge between two proteins in a protein-specific or a variant-specific manner. The methods described enable generation of compounds able to modulate PPI networks within cells with implications for drug development for pathological conditions.

Abstract: The present disclosure provides methods to treat conditions, including cancer, using compounds that can target resistant cancer cells. The compounds can be used to sensitize resistant cancer cells or decrease the proliferation of cells. The compounds can target proteins in the DNA damage repair pathway leading to a decrease in DNA damage repair and cell death.

Abstract: The present disclosure provides methods to identify peptides and small molecule moieties that are able to functionally bridge an interaction between a target protein and an E3 ubiquitin ligase to mediate the degradation of the target protein. Some moieties can degrade specific target variants, but not others. The moieties create a neosubstrate for an E3 ligase of interest. The methods described enable generation of compounds able to selectively degrade specific targets within cells with implications for drug development for pathological conditions. The disclosure also describes the generation of modified peptides using post-translational modification enzymes, such as N-methyltransferases, prolyloligopeptidases, lactamases, hydroxylases, and dehydratases, along with methods of using the same.

Abstract: The present disclosure provides methods to treat conditions, including cancer, using compounds that can target resistant cancer cells. The compounds can be used to sensitize resistant cancer cells or decrease the proliferation of cells. The compounds can target proteins in the DNA damage repair pathway leading to a decrease in DNA damage repair in target cells.