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Receptors Channels. 2004;10(5-6):167-83.

Regulation of receptor-coupling to (multiple) G proteins. A challenge for basic research and drug discovery.

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  • 1Department of Neuroscience, Physiology, Uppsala University, Uppsala, Sweden. jyrki.kukkonen@fysiologi.uu.se

Abstract

G protein-coupled receptors induce intracellular signals via interaction of with cytosolic/peripheral membrane proteins, mainly G proteins. There has been much debate about the mode of interaction between the receptors, G proteins and effectors, their mobility and the ways of determining the specificity of interaction. Additional complexity has been added to system upon the discovery of i) coupling of single receptors to several G proteins and ii) active direction of this by different ligands (stimulus trafficking). These data suggest that the most primary unit in the signal transduction is the receptor complexed with a specific G protein, making the investigation of the mechanism of receptor-G protein selection and interaction even more important. In this review, I will summarize the general knowledge of receptor interaction with G proteins and effectors and the ways of investigating this.

PMID:
15989081
[PubMed - indexed for MEDLINE]

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