Immunoprecipitation (IP) and co-immunoprecipitation (Co-IP) are valuable tools for studying the interaction of proteins with macromolecules, such as other proteins. The Capturem IP & Co-IP Kit provides a complete, easy-to-use solution for the rapid isolation of individual proteins or protein-protein complexes. The kit features Capturem Protein A columns for high-capacity, membrane-based purification of antibody-bound protein complexes. All of the buffers necessary for cell lysis as well as binding, washing, and eluting of the antibody-antigen complexes are also included in the kit. IPs are performed in just 15 minutes, from sample incubation with antibody through elution.