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  • Title: Coimmunoprecipitation assay.
    Author: Lee C.
    Journal: Methods Mol Biol; 2007; 362():401-6. PubMed ID: 17417028.
    Abstract:
    As with most other proteins, clock proteins physically interact with one another. Coimmunoprecipitation (coIP) is the most straightforward technique to study protein-protein interactions in vivo, if antibodies against the proteins of interest are available. To perform coIP, first an antibody against a target protein is coupled to Sepharose beads through protein A or G, then the complexes containing the target protein are immunoprecipitated with the antibody-coupled beads by centrifugation. Protein components in the complexes are visualized by Western blotting using antibodies specific to the different components.
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