Blocking
Blocking with sera or a protein-blocking reagent prevents the non-specific binding of antibodies to tissue or to Fc receptors.
Blocking antibodies are crucial in immunological assays to prevent non-specific binding and reduce background noise. These antibodies bind to Fc receptors or other non-target sites, ensuring primary antibodies bind only to their specific antigens.
Blocking techniques are vital in various methods, such as multiplexing, immunohistochemistry (IHC), flow cytometry, and western blotting. In multiplexing, blocking agents proficiently reduce cross-reactivity among multiple targets. In IHC, they ensure that tissue staining remains specific and precise. Flow cytometry effectively utilizes blocking reagents to prevent unwanted Fc receptor binding. At the same time, western blotting employs agents like BSA or non-fat milk to cover unoccupied membrane sites, significantly enhancing the reliability and accuracy of the results.
Resources for blocking
Discover everything you need for effective blocking in your IHC and ICC experiments, including detailed protocols, tips, and guides.
Protocols
Learn how to block your antibody using an immunizing peptide with our step-by-step protocol.
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Guides
Blocking is an essential step in immunohistochemistry (IHC) experiments, as it reduces background signals and false positives. For more information, see our blocking in IHC guide.
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