Immunoprecipitation (IP) is widely used in research and development, by which a protein can be selectively purified from samples. BioVision's immunoprecipitation kit provides optimized buffers for preparing cell/tissue extracts, antigen binding and washing steps. The protein A/G Sepharose beads provided in the kit has higher binding capacity with broader antibody isotype binding than traditional protein A or protein G resins. The kit can be used in variety of immunoprecipitation or Co-IP studies.