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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Curr Protoc Pharmacol. 2012 Mar;CHAPTER:Unit2.8. doi: 10.1002/0471141755.ph0208s56

Figure 4. Inhibition of Gαi1/RGS4 interaction by the cysteine-reactive compound CCG-4986.

Figure 4

A previously identified compound, CCG-4986, (Roman et al., 2007) covalently modifies surface cysteines on RGS4, preventing association with Gαi1 (Kimple et al., 2007). The FRET method allows determination of an IC50 for RGS protein inhibition.