METHOD FOR PROTEIN BINDING ENZYME COMPLEMENTATION ASSAYS

摘要

This invention relates to improved methods and novel compositions for enzyme complementation assays for qualitative and quantitative determination of a suspected analyte in a sample. The use of enzyme-acceptor and enzyme-donor polypeptides prepared by recombinant DNA techniques or chemical polypeptide synthesis techniques which are capable of interacting to form an active enzyme complex having catalytic activity characteristic of beta -galactosidase is described. Both homogeneous and heterogeneous assays utilizing these polypeptides are described.