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Co-IP Protocol

Co-Immunoprecipitation (Co-IP) is an extension of immunoprecipitation (IP) with which Co-IP shares the same fundamental principle of the specific antigen-antibody reaction. By targeting a known protein with a specific antibody, it may be possible to pull the entire protein complex out of solution, thereby identifying unknown members of the complex. <br>However, Co-IP requires greater care and more physiologically relevant conditions than traditional IP. When successful, Co-IP pulls down not only the protein of interest but also its interaction partners. Thus, Co-IP is a powerful technique to identify protein complexes and determine protein-protein interactions. Here we provide a detailed procedure for Co-IP to study proteinu2013protein interactions.<br>Harvest and Wash Cellsuff1aTransfer the cultured cells from the culture dish to a 15-mL conical tube. Centrifuge at 500u00d7g for 2 min at 4u00b0C and remove the supernatant. Wash with ice-cold PBS and centrifuge at 500u00d7g for 2 min at 4u00b0C. Remove the supernatant. Repeat Step 3 twice.<br><br>https://www.creative-diagnostics.com/co-immunoprecipitation-co-ip-protocol.htm<br>

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Co-IP Protocol

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  1. Co-IP Protocol Co-Immunoprecipitation (Co-IP) is an extension of immunoprecipitation (IP) with which Co-IP shares the same fundamental principle of the specific antigen-antibody reaction. By targeting a known protein with a specific antibody, it may be possible to pull the entire protein complex out of solution, thereby identifying unknown members of the complex. However, Co-IP requires greater care and more physiologically relevant conditions than traditional IP. When successful, Co-IP pulls down not only the protein of interest but also its interaction partners. Thus, Co-IP is a powerful technique to identify protein complexes and determine protein-protein interactions. Here we provide a detailed procedure for Co-IP to study protein–protein interactions. Harvest and Wash Cells：Transfer the cultured cells from the culture dish to a 15-mL conical tube. Centrifuge at 500×g for 2 min at 4°C and remove the supernatant. Wash with ice-cold PBS and centrifuge at 500×g for 2 min at 4°C. Remove the supernatant. Repeat Step 3 twice.

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