Detection of heteromers formed by cannabinoid CB1, dopamine D2, and adenosine A2A G-protein-coupled receptors by combining bimolecular fluorescence complementation and bioluminescence energy transfer

ScientificWorldJournal. 2008 Oct 11;8:1088-97. doi: 10.1100/tsw.2008.136.


Functional interactions in signaling occur between dopamine D2 (D2R) and cannabinoid CB1 (CB1R) receptors, between CB1R and adenosine A2A (A2AR) receptors, and between D2R and A2AR. Furthermore, direct molecular interactions have been reported for the pairs CB1R-D2R, A2AR-D2R, and CB1R-A2AR. Here a combination of bimolecular fluorescence complementation and bioluminescence energy transfer techniques was used to identify the occurrence of D2R-CB1R-A2AR hetero-oligomers in living cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line
  • Dimerization
  • Fluorescence Resonance Energy Transfer
  • Humans
  • Kidney / embryology
  • Luminescent Measurements
  • Protein Structure, Quaternary
  • Receptor, Adenosine A2A / metabolism*
  • Receptor, Cannabinoid, CB1 / metabolism*
  • Receptors, Dopamine D2 / metabolism*
  • Recombinant Fusion Proteins / metabolism
  • Transfection


  • Receptor, Adenosine A2A
  • Receptor, Cannabinoid, CB1
  • Receptors, Dopamine D2
  • Recombinant Fusion Proteins