Immunoprecipitation is a specialized technique that involves the isolation and enrichment of a specific protein or antigen from a complex mixture of other proteins and biomolecules. This technique requires specific antibodies that recognize the protein of interest, which are then immobilized onto beads or other solid supports. Samples containing the protein of interest are then added to the immobilized antibodies, allowing them to selectively bind to the target protein, which can then be separated from the rest of the sample and analyzed further. Immunoprecipitation is commonly used in research settings to study protein-protein interactions, protein localization, and post-translational modifications.