Co-immunoprecipitation Protocol to Investigate Cytokine Receptor-Associated Proteins, e.g., Janus Kinases or Other Associated Signaling Proteins
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Jak binding to cytokine receptors has been shown to be a complex and tight interaction. When studying loss-of-function or gain-of-function mutants of the Jaks or cytokine receptors it is often necessary to know if a certain mutant still associates correctly in the context of the signaling complex. The standard technique to show interaction of Jaks with cytokine receptors or other signalling molecules is Co-immunoprecipitation. Here we describe our protocol and discuss different pitfalls that can be encountered during the procedure.
