Abbreviations

FamilyLigandOfficial IUPHAR nameHuman gene name
CLASS A
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT1AHTR1A
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT1BHTR1B
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT1DHTR1D
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT2AHTR2A
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT2CHTR2C
5-Hydroxytryptamine receptors5-hydroxytryptamine5-HT4HTR4
Acetylcholine receptors (muscarinic)acetylcholineM3CHRM3
Adenosine receptorsadenosineA1ADORA1
Adenosine receptorsadenosineA2AADORA2A
Adrenoceptorsadrenalinealpha1B-adrenoceptorADRA1B
Adrenoceptorsadrenalinealpha1D-adrenoceptorADRA1D
Adrenoceptorsadrenalinealpha2A-adrenoceptorADRA2A
Adrenoceptorsnoradrenalinebeta1-adrenoceptorADRB1
Adrenoceptorsadrenalinebeta2-adrenoceptorADRB2
Anaphylatoxin receptorsanaphylatoxin C5aC5aC5R1
Angiotensin receptorsangiotensinAT2AGTR1
Angiotensin receptorsangiotensinAT2AGTR2
Bradykinin receptorsbradykininB1 BDKRB1
Bradykinin receptorsbradykininB2 BDKRB2
Cannabinoid receptorscannabinoidCB1CNR1
Cannabinoid receptorscannabinoidCB2CNR2
Chemokine receptorsCCL2, CCL7, CCL8, CCL13CCR2CCR2
Chemokine receptorsCCL3, CCL4, CCL5, CCL8, CCL14CCR5CCR5
Chemokine receptorsCXCL1-3, CXCL5-8, macrophage derived lectinCXCR2IL8RB
Chemokine receptorsCXCL12CXCR4CXCR4
Cholecystokinin receptorscholecystokininCCK1CCKAR
Dopamine receptorsdopamineD1DRD1
Dopamine receptorsdopamineD2DRD2
Dopamine receptorsdopamineD3DRD3
Histamine receptorshistamineH1HRH1
Histamine receptorshistamineH3HRH3
Leukotriene receptorsleukotriene B4BLT1LTB4R
Melanocortin receptorsα-melanocyte stimulating hormoneMC1MC1R
Melatonin receptorsmelatoninMT1MTNR1A
Melatonin receptorsmelatoninMT2MTNR1B
Neurotensin receptorsneurotensinNTS1NTSR1
Opioid receptorsβ-endorphindeltaOPRD1
Opioid receptorsdynorphin AkappaOPRK1
Opioid receptorsβ-endorphinmuOPRM1
Orexin receptorsorexin A, orexin BOX1HCRTR1
Platelet-activating factor receptorplatelet-activating factorPAFPTAFR
Prostanoid receptorsthromboxane A2TPTBXA2R
Somatostatin receptorssomatostatinsst1SSTR1
Somatostatin receptorssomatostatinsst2SSTR2
Somatostatin receptorssomatostatinsst5SSTR5
Thyrotropin-releasing hormone receptorthyrotropin-releasing hormoneTRH1TRHR
Vasopressin and oxytocin receptorsvasopressinV1AAVPR1A
Vasopressin and oxytocin receptorsvasopressinV1BAVPR1B
Vasopressin and oxytocin receptorsvasopressinV2AVPR2
Vasopressin and oxytocin receptorsoxytocinOTOXTR
Class A OrphansGPR26GPR26
Non-signalling 7TM chemokine-binding proteinsCCPB2CCBP2
Non-signalling 7TM chemokine-binding proteinsCCRL1CCRL1
Non-signalling 7TM chemokine-binding proteinsFYDARC
CLASS B
Calcitonin receptorsadrenomedullin, CGRPCALCRLCALCRL
Glucagon receptor familysecretinSTCRSCTR
CLASS C
Calcium-sensing receptorsCalciumCaSCASR
Calcium-sensing receptorsGPRC6GPRC6A
GABAB receptorsGABAGABAB1GABBR1
GABAB receptorsGABAB2GABBR2
Metabotropic glutamate receptorsGlutamatemGlu1GRM1
Metabotropic glutamate receptorsGlutamatemGlu2GRM2
Metabotropic glutamate receptorsGlutamatemGlu5GRM5


Reference: "Requirements and ontology for a G protein-coupled receptor oligomerization knowledge base." BMC Bioinformatics. 2007 May 30;8:177. Skrabanek L, Murcia M, Bouvier M, Devi L, George SR, Lohse MJ, Milligan G, Neubig R, Palczewski K, Parmentier M, Pin JP, Vriend G, Javitch JA, Campagne F, Filizola M.