Nomenclature	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2297	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2298	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2299	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2300	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2301
Subunits	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1695 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1696 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2303 (Other subunit)	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1697 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2303 (Other subunit)	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1697 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1700 (Other subunit)	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1698 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2303 (Other subunit)	http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1699 (Ligand‐binding subunit), http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2303 (Other subunit)
Endogenous agonists	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4985 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6001, http://www.uniprot.org/uniprot/P60568)	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4996 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6014, http://www.uniprot.org/uniprot/P05112)	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4980 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:5973, http://www.uniprot.org/uniprot/P35225), http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4996 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6014, http://www.uniprot.org/uniprot/P05112)	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4999 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6023, http://www.uniprot.org/uniprot/P13232)	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=5000 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6029, http://www.uniprot.org/uniprot/P15248)
Endogenous antagonists	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=5878 (https://www.genenames.org/data/gene‐symbol‐report/#!/hgnc_id/HGNC:6000, http://www.uniprot.org/uniprot/P18510)	–	–	–	–
Selective antagonists	http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4861 [http://www.ncbi.nlm.nih.gov/pubmed/8940020?dopt=AbstractPlus]	–	–	–	–