Application of the yeast two-hybrid system in molecular gerontology.

Most -- if not all -- proteins are bound to interact with other proteins to exert their function, and thus the identification of the interaction partners of a protein is vital in proteomics. The yeast two-hybrid system is a popular and effective tool for studying protein-protein interactions. Although the advantages of the system are manifold, it also has certain drawbacks and limitations. The two-hybrid system has been shown to be extremely useful for placing a protein of unknown function within a functional context, thereby providing information about a putative role of the uncharacterised protein. This concept has also been successfully applied in molecular gerontology.