摘要:
Bifunctional inhibitor molecules and methods for their use in the inhibition of protein—protein interactions are provided. The subject bifunctional inhibitor molecules are conjugates of a target protein ligand and a blocking protein ligand, where these two moieties are optionally joined by a linking group. In the subject methods, an effective amount of the bifunctional inhibitor molecule is administered to a host in which the inhibition of a protein—protein interaction is desired. The bifunctional inhibitor molecule simultaneously binds to its corresponding target and blocking proteins to produce a tripartite complex that inhibits the target protein—protein interaction. The subject methods and compositions find use in a variety of applications, including therapeutic applications.
摘要:
A conditional allelic system is provided where recombinant cells express a fusion protein, where the fusion protein comprises at least a functional portion of a target protein and a destabilizing peptide. The destabilizing peptide binds to a small stabilizing molecule that results in the stabilization of the fusion protein in a functional form, while in the absence of the small stabilizing molecule, the protein function is substantially reduced. The system finds use in studying cellular pathways, preparing transgenic animals that can develop in the presence of the small stabilizing molecule and can then be studied in the presence and absence of the fusion protein to determine the functions and/or effects of target protein function in and/or on various environments. Specifically, a mutated peptide from mTOR is employed as the destabilizing peptide and a modified rapamycin is employed as the small stabilizing molecule.