Send to

Choose Destination
Trends Pharmacol Sci. 2001 Nov;22(11):560-4.

Is Galpha16 the optimal tool for fishing ligands of orphan G-protein-coupled receptors?

Author information

Aventis Pharma, Disease Group Cardiovascular, Building H825, 65926, Frankfurt/Main, Germany.


Identification of natural ligands for orphan G-protein-coupled receptors will help expand the boundaries of physiology and pharmacology. Powerful approaches are needed that can pair biologically active ligands with their corresponding receptors. Many attempts have been made to set up universal screening schemes such that receptor activation by its cognate ligand is transduced into a common intracellular signal that is amenable to high-throughput screening analysis. One possibility that achieves such a 'universal assay' takes advantage of the promiscuous nature of the G-protein subunit Galpha16. However, a truly critical look at Galpha16 is still required. In this article, the strengths, weaknesses, problems and pitfalls that are associated with the use of Galpha16 will be discussed, and suggestions of how problems might be overcome with an optimized universal G-protein system will be proposed.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center