Table 1.
Family A GPCR names, accession numbers and G protein coupled (Receptor names link out to the corresponding reaction in Reactome)
| GPCR family A Receptors | Gene Name | Acc. No. | Gα subunit(s) coupled | GPCR family A Receptors | Gene Name | Acc. No. | Gα subunit(s) oupled | |
|---|---|---|---|---|---|---|---|---|
| 5-hydroxytryptamine receptor 1A | HTR1A | P08908 | i | Type-2 angiotensin II receptor (AT2) | AGTR2 | P50052 | i, q/11 | |
| 5-hydroxytryptamine receptor 1B | HTR1B | P28222 | i | Apelin receptor | APLNR | P35414 | i | |
| 5-hydroxytryptamine receptor 1D | HTR1D | P28221 | i | B1 bradykinin receptor | BDKRB1 | P46663 | i, q/11 | |
| 5-hydroxytryptamine receptor 1E | HTR1E | P28566 | i | B2 bradykinin receptor | BDKRB2 | P30411 | i, q/11 | |
| 5-hydroxytryptamine receptor 1F | HTR1F | P30939 | i | C5a anaphylatoxin chemotactic receptor | C5AR1 | P21730 | i | |
| 5-hydroxytryptamine receptor 2A | HTR2A | P28223 | q/11 | Cholecystokinin receptor type A | CCKAR | P32238 | q/11 | |
| 5-hydroxytryptamine receptor 2B | HTR2B | P41595 | q/11 | C-C chemokine receptor type 10 | CCR10 | P46092 | i | |
| 5-hydroxytryptamine receptor 2C | HTR2C | P28335 | q/11 | C-C chemokine receptor type 1 | CCR1 | P32246 | i | |
| 5-hydroxytryptamine receptor 4 | HTR4 | Q13639 | s | C-C chemokine receptor type 2 | CCR2 | P41597 | i | |
| 5-hydroxytryptamine receptor 5A | HTR5A | P47898 | i | C-C chemokine receptor type 3 | CCR3 | P51677 | i | |
| 5-hydroxytryptamine receptor 6 | HTR6 | P50406 | s | C-C chemokine receptor type 4 | CCR4 | P51679 | i | |
| 5-hydroxytryptamine receptor | HTR7 | P34969 | s | C-C chemokine receptor type 5 | CCR5 | P51681 | i | |
| Adenosine receptor A1 | ADORA1 | P30542 | i | C-C chemokine receptor type 6 | CCR6 | P51684 | i | |
| Adenosine receptor A2a | ADORA2A | P29274 | s | C-C chemokine receptor type 7 | CCR7 | P32248 | i | |
| Adenosine receptor A2b | ADORA2B | P29275 | s | C-C chemokine receptor type 8 | CCR8 | P51685 | i | |
| Adenosine A3 receptor | ADORA3 | P33765 | i | C-C chemokine receptor type 9 | CCR9 | P51686 | i | |
| Muscarinic acetylcholine receptor M1 | CHRM1 | P11229 | q/11 | Cysteinyl leukotriene receptor 1 | CYSLTR1 | Q9Y271 | q/11 | |
| Muscarinic acetylcholine receptor M2 | CHRM2 | P08172 | i | Cysteinyl leukotriene receptor 2 | CYSLTR2 | Q9NS75 | q/11 | |
| Muscarinic acetylcholine receptor M3 | CHRM3 | P20309 | q/11 | Cannabinoid receptor 1 | CNR1 | P21554 | i | |
| Muscarinic acetylcholine receptor M4 | CHRM4 | P08173 | i | Cannabinoid receptor 2 | CNR2 | P34972 | i | |
| Muscarinic acetylcholine receptor M5 | CHRM5 | P08912 | q/11 | CX3C chemokine receptor 1 | CX3CR1 | P49238 | unknown | |
| Adrenocorticotropic hormone receptor | MC2R | Q01718 | s | High affinity interleukin-8 receptor A | IL8RA | P25024 | i | |
| α-1A adrenergic receptor | ADRA1A | P35348 | q/11 | High affinity interleukin-8 receptor B | IL8RB | P25025 | i | |
| α-1B adrenergic receptor | ADRA1B | P35368 | q/11 | C-X-C chemokine receptor type 3 | CXCR3 | P49682 | i | |
| α-1D adrenergic receptor | ADRA1D | P25100 | q/11 | C-X-C chemokine receptor type 4 | CXCR4 | P61073 | i | |
| α-2A adrenergic receptor | ADRA2A | P08913 | i | C-X-C chemokine receptor type 6 | CXCR6 | O00574 | i | |
| α-2B adrenergic receptor | ADRA2B | P18089 | i | C-X-C chemokine receptor type 7 | CXCR7 | P25106 | i | |
| α-2C adrenergic receptor | ADRA2C | P18825 | i | D(1A) dopamine receptor | DRD1 | P21728 | s | |
| β-1 adrenergic receptor | ADRB1 | P08588 | s | D(2) dopamine receptor | DRD2 | P14416 | i | |
| β-2 adrenergic receptor | ADRB2 | P07550 | s | D(3) dopamine receptor | DRD3 | P35462 | i | |
| β-3 adrenergic receptor | ADRB3 | P13945 | s | D(4) dopamine receptor | DRD4 | P21917 | i | |
| Type-1 angiotensin II receptor | AGTR1 | P30556 | q/11 | D(1B) dopamine receptor | DRD5 | P21918 | s | |
| Duffy antigen/chemokine receptor | DARC | Q16570 | unknown | Melanocyte-stimulating hormone receptor | MC1R | Q01726 | s | |
| Endothelin-1 receptor | EDNRA | P25101 | q/11 | Melatonin receptor type 1A | MTNR1A | P48039 | i | |
| Endothelin B receptor | EDNRB | P24530 | q/11 | Melatonin receptor type 1B | MTNR1B | P49286 | i | |
| N-formyl peptide receptor 2 | FPR2 | P25090 | q/11 | Substance-P receptor | TACR1 | P25103 | q/11 | |
| Follicle-stimulating hormone receptor | FSHR | P23945 | s | Substance-K receptor | TACR2 | P21452 | q/11 | |
| Galanin receptor type 1 | GALR1 | P47211 | i | Neuromedin-K receptor | TACR3 | P29371 | q/11 | |
| Galanin receptor type 2 | GALR2 | O43603 | i | Neuromedin-B receptor | NMBR | P28336 | q/11 | |
| Galanin receptor type 3 | GALR3 | O60755 | i | Neuropeptides B/W receptor type 1 | NPBWR1 | P48145 | i | |
| Gastrin/cholecystokinin type B receptor | CCKBR | P32239 | q/11 | Neuropeptides B/W receptor type 2 | NPBWR2 | P48146 | i | |
| Gonadotropin-releasing hormone receptor | GNRHR | P30968 | q/11 | Neuropeptide FF receptor 1 | NPFFR1 | Q9GZQ6 | q/11 | |
| Putative gonadotropin-releasing hormone II receptor | GNRHR2 | Q96P88 | q/11 | Neuropeptide FF receptor 2 | NPFFR2 | Q9Y5X5 | q/11 | |
| G-protein coupled oestrogen receptor 1 | GPER | Q99527 | i | Neuropeptide Y receptor type 1 | NPY1R | P25929 | i | |
| Uracil nucleotide/cysteinyl leukotriene receptor | GPR17 | Q13304 | i, q/11 | Neuropeptide Y receptor type 2 | NPY2R | P49146 | i | |
| Putative G-protein coupled receptor 44 | GPR44 | Q9Y5Y4 | i | Neuropeptide Y receptor type 4 | PPYR1 | P50391 | i | |
| G-protein coupled receptor 55 | GPR55 | Q9Y2T6 | i | Neuropeptide Y receptor type 5 | NPY5R | Q15761 | i | |
| Gastrin-releasing peptide receptor | GRPR | P30550 | q/11 | Neurotensin receptor type 1 | NTSR1 | P30989 | q/11 | |
| Histamine H1 receptor | HRH1 | P35367 | q/11 | Neurotensin receptor type 2 | NTSR2 | O95665 | q/11 | |
| Histamine H2 receptor | HRH2 | P25021 | s | Olfactory receptor 10A2 | OR10A2 | Q9H208 | olf | |
| Histamine H3 receptor | HRH3 | Q9Y5N1 | i | Olfactory receptor 10A3 | OR10A3 | P58181 | olf | |
| Histamine H4 receptor | HRH4 | Q9H3N8 | i | Olfactory receptor 10A4 | OR10A4 | Q9H209 | olf | |
| KiSS-1 receptor | KISS1R | Q969F8 | q/11 | Olfactory receptor 10A5 | OR10A5 | Q9H207 | olf | |
| Lysophosphatidic acid receptor 1 | LPAR1 | Q92633 | i, q/11 | Olfactory receptor 10A6 | OR10A6 | Q8NH74 | olf | |
| Lysophosphatidic acid receptor 2 | LPAR2 | Q9HBW0 | i, q/11 | Olfactory receptor 10A7 | OR10A7 | Q8NGE5 | olf | |
| Lysophosphatidic acid receptor 3 | LPAR3 | Q9UBY5 | i, q/11 | Olfactory receptor 10AD1 | OR10AD1 | Q8NGE0 | olf | |
| Lysophosphatidic acid receptor 4 | LPAR4 | Q99677 | q/11 | Olfactory receptor 10AG1 | OR10AG1 | Q8NH19 | olf | |
| Lysophosphatidic acid receptor 6 | LPAR6 | P43657 | q/11 | Olfactory receptor 10C1 | OR10C1 | Q96KK4 | olf | |
| Lutropin-choriogonadotropic hormone receptor | LHCGR | P22888 | s | Olfactory receptor 10G2 | OR10G2 | Q8NGC3 | olf | |
| Leukotriene B4 receptor 1 | LTB4R | Q15722 | q/11 | Olfactory receptor 10G3 | OR10G3 | Q8NGC4 | olf | |
| Leukotriene B4 receptor 2 | LTB4R2 | Q9NPC1 | q/11 | Olfactory receptor 10G4 | OR10G4 | Q8NGN3 | olf | |
| Melanocortin receptor 3 | MC3R | P41968 | s | Olfactory receptor 10G6 | OR10G6 | Q8NH81 | olf | |
| Melanocortin receptor 4 | MC4R | P32245 | s | Olfactory receptor 10G7 | OR10G7 | Q8NGN6 | olf | |
| Melanocortin receptor 5 | MC5R | P33032 | s | Olfactory receptor 10G8 | OR10G8 | Q8NGN5 | olf | |
| Olfactory receptor 10G9 | OR10G9 | Q8NGN4 | olf | Olfactory receptor 2T10 | OR2T10 | Q8NGZ9 | olf | |
| Olfactory receptor 10H1 | OR10H1 | Q9Y4A9 | olf | Olfactory receptor 2T11 | OR2T11 | Q8NH01 | olf | |
| Olfactory receptor 10H2 | OR10H2 | O60403 | olf | Olfactory receptor 2T12 | OR2T12 | Q8NG77 | olf | |
| Olfactory receptor 10H3 | OR10H3 | O60404 | olf | Olfactory receptor 2T27 | OR2T27 | Q8NH04 | olf | |
| Olfactory receptor 10H4 | OR10H4 | Q8NGA5 | olf | Olfactory receptor 2T29 | OR2T29 | Q8NH02 | olf | |
| Olfactory receptor 10H5 | OR10H5 | Q8NGA6 | olf | Olfactory receptor 2T33 | OR2T33 | Q8NG76 | olf | |
| Olfactory receptor 10J1 | OR10J1 | P30954 | olf | Olfactory receptor 2T34 | OR2T34 | Q8NGX1 | olf | |
| Olfactory receptor 10J3 | OR10J3 | Q5JRS4 | olf | Olfactory receptor 2T35 | OR2T35 | Q8NGX2 | olf | |
| Olfactory receptor 10J5 | OR10J5 | Q8NHC4 | olf | Olfactory receptor 4A15 | OR4A15 | Q8NGL6 | olf | |
| Olfactory receptor 10K1 | OR10K1 | Q8NGX5 | olf | Olfactory receptor 4A16 | OR4A16 | Q8NH70 | olf | |
| Olfactory receptor 10K2 | OR10K2 | Q6IF99 | olf | Olfactory receptor 4A47 | OR4A47 | Q6IF82 | olf | |
| Olfactory receptor 10P1 | OR10P1 | Q8NGE3 | olf | Olfactory receptor 4C45 | OR4C45 | A6NMZ5 | olf | |
| Olfactory receptor 10Q1 | OR10Q1 | Q8NGQ4 | olf | Olfactory receptor 4C46 | OR4C46 | A6NHA9 | olf | |
| Olfactory receptor 10R2 | OR10R2 | Q8NGX6 | olf | Olfactory receptor 4F15 | OR4F15 | Q8NGB8 | olf | |
| Olfactory receptor 10S1 | OR10S1 | Q8NGN2 | olf | Olfactory receptor 4F17 | OR4F17 | Q8NGA8 | olf | |
| Olfactory receptor 10T2 | OR10T2 | Q8NGX3 | olf | Olfactory receptor 4F21 | OR4F21 | O95013 | olf | |
| Olfactory receptor 10V1 | OR10V1 | Q8NGI7 | olf | Olfactory receptor 51A2 | OR51A2 | Q8NGJ7 | olf | |
| Olfactory receptor 10W1 | OR10W1 | Q8NGF6 | olf | Olfactory receptor 51A4 | OR51A4 | Q8NGJ6 | olf | |
| Olfactory receptor 14A2 | OR14A2 | Q96R54 | olf | Olfactory receptor 51A7 | OR51A7 | Q8NH64 | olf | |
| Olfactory receptor 14C36 | OR14C36 | Q8NHC7 | olf | Olfactory receptor 51B2 | OR51B2 | Q9Y5P1 | olf | |
| Olfactory receptor 14I1 | OR14I1 | A6ND48 | olf | Olfactory receptor 51B4 | OR51B4 | Q9Y5P0 | olf | |
| Olfactory receptor 14J1 | OR14J1 | Q9UGF5 | olf | Olfactory receptor 51B5 | OR51B5 | Q9H339 | olf | |
| Olfactory receptor 14K1 | OR14K1 | Q8NGZ2 | olf | Olfactory receptor 51B5 | OR51B6 | Q9H340 | olf | |
| Olfactory receptor 2A12 | OR2A12 | Q8NGT7 | olf | Olfactory receptor 51D1 | OR51D1 | Q8NGF3 | olf | |
| Olfactory receptor 2A14 | OR2A14 | Q96R47 | olf | Olfactory receptor 51E1 | OR51E1 | Q8TCB6 | olf | |
| Olfactory receptor 2A25 | OR2A25 | A4D2G3 | olf | Olfactory receptor 51E2 | OR51E2 | Q9H255 | olf | |
| Olfactory receptor 2AG1 | OR2AG1 | Q9H205 | olf | Olfactory receptor 51F1 | OR51F1 | A6NGY5 | olf | |
| Olfactory receptor 2AG2 | OR2AG2 | A6NM03 | olf | Olfactory receptor 51F2 | OR51F2 | Q8NH61 | olf | |
| Olfactory receptor 2AJ1 | OR2AJ1 | Q8NGZ0 | olf | Olfactory receptor 51G1 | OR51G1 | Q8NGK1 | olf | |
| Olfactory receptor 2AK2 | OR2AK2 | Q8NG84 | olf | Olfactory receptor 51G2 | OR51G2 | Q8NGK0 | olf | |
| Olfactory receptor 2AP1 | OR2AP1 | Q8NGE2 | olf | Putative olfactory receptor 51H1 | OR51H1P | Q8NH63 | olf | |
| Olfactory receptor 2AT4 | OR2AT4 | A6NND4 | olf | Olfactory receptor 51I1 | OR51I1 | Q9H343 | olf | |
| Olfactory receptor 51I2 | OR51I2 | Q9H344 | olf | Olfactory receptor 56A1 | OR56A1 | Q8NGH5 | olf | |
| Olfactory receptor 51J1 | OR51J1 | Q9H342 | olf | Olfactory receptor 56A3 | OR56A3 | Q8NH54 | olf | |
| Olfactory receptor 51L1 | OR51L1 | Q8NGJ5 | olf | Olfactory receptor 56A4 | OR56A4 | Q8NGH8 | olf | |
| Olfactory receptor 51M1 | OR51M1 | Q9H341 | olf | Olfactory receptor 56A5 | OR56A5 | P0C7T3 | olf | |
| Olfactory receptor 51Q1 | OR51Q1 | Q8NH59 | olf | Olfactory receptor 56B1 | OR56B1 | Q8NGI3 | olf | |
| Olfactory receptor 51S1 | OR51S1 | Q8NGJ8 | olf | Olfactory receptor 56B4 | OR56B4 | Q8NH76 | olf | |
| Olfactory receptor 51T1 | OR51T1 | Q8NGJ9 | olf | Olfactory receptor 5AC2 | OR5AC2 | Q9NZP5 | olf | |
| Olfactory receptor 51V1 | OR51V1 | Q9H2C8 | olf | Olfactory receptor 5AK2 | OR5AK2 | Q8NH90 | olf | |
| Olfactory receptor 52A1 | OR52A1 | Q9UKL2 | olf | Olfactory receptor 5AN1 | OR5AN1 | Q8NGI8 | olf | |
| Olfactory receptor 52A5 | OR52A5 | Q9H2C5 | olf | Olfactory receptor 5AP2 | OR5AP2 | Q8NGF4 | olf | |
| Olfactory receptor 52B2 | OR52B2 | Q96RD2 | olf | Olfactory receptor 5AR1 | OR5AR1 | Q8NGP9 | olf | |
| Olfactory receptor 52B4 | OR52B4 | Q8NGK2 | olf | Olfactory receptor 5AS1 | OR5AS1 | Q8N127 | olf | |
| Olfactory receptor 52B6 | OR52B6 | Q8NGF0 | olf | Olfactory receptor 5AU1 | OR5AU1 | Q8NGC0 | olf | |
| Olfactory receptor 52D1 | OR52D1 | Q9H346 | olf | Olfactory receptor 5H14 | OR5H14 | A6NHG9 | olf | |
| Olfactory receptor 52E2 | OR52E2 | Q8NGJ4 | olf | Olfactory receptor 5H15 | OR5H15 | A6NDH6 | olf | |
| Olfactory receptor 52E4 | OR52E4 | Q8NGH9 | olf | Olfactory receptor 6C65 | OR6C65 | A6NJZ3 | olf | |
| Olfactory receptor 52E5 | OR52E5 | Q8NH55 | olf | Olfactory receptor 6C68 | OR6C68 | A6NDL8 | olf | |
| Olfactory receptor 52E6 | OR52E6 | Q96RD3 | olf | Olfactory receptor 6C70 | OR6C70 | A6NIJ9 | olf | |
| Olfactory receptor 52E8 | OR52E8 | Q6IFG1 | olf | Olfactory receptor 6C74 | OR6C74 | A6NCV1 | olf | |
| Olfactory receptor 52H1 | OR52H1 | Q8NGJ2 | olf | Olfactory receptor 6C75 | OR6C75 | A6NL08 | olf | |
| Olfactory receptor 52I1 | OR52I1 | Q8NGK6 | olf | Olfactory receptor 6C76 | OR6C76 | A6NM76 | olf | |
| Olfactory receptor 52I2 | OR52I2 | Q8NH67 | olf | Olfactory receptor 7E24 | OR7E24 | Q6IFN5 | olf | |
| Olfactory receptor 52K1 | OR52K1 | Q8NGK4 | olf | Opsin-3 | OPN3 | Q9H1Y3 | t | |
| Olfactory receptor 52K2 | OR52K2 | Q8NGK3 | olf | Melanopsin | OPN4 | Q9UHM6 | q/11 | |
| Olfactory receptor 52L1 | OR52L1 | Q8NGH7 | olf | Opsin-5 | OPN5 | Q6U736 | t | |
| Olfactory receptor 52M1 | OR52M1 | Q8NGK5 | olf | δ-type opioid receptor | OPRD1 | P41143 | I | |
| Olfactory receptor 52N1 | OR52N1 | Q8NH53 | olf | κ-type opioid receptor | OPRK1 | P41145 | I | |
| Olfactory receptor 52N2 | OR52N2 | Q8NGI0 | olf | µ-type opioid receptor | OPRM1 | P35372 | i | |
| Olfactory receptor 52N4 | OR52N4 | Q8NGI2 | olf | Nociceptin receptor | OPRL1 | P41146 | i | |
| Olfactory receptor 52N5 | OR52N5 | Q8NH56 | olf | Blue-sensitive opsin | OPN1SW | P03999 | t | |
| Olfactory receptor 52R1 | OR52R1 | Q8NGF1 | olf | Rhodopsin | RHO | P08100 | t | |
| Olfactory receptor 52W1 | OR52W1 | Q6IF63 | olf | Green-sensitive opsin | OPN1MW | P04001 | t | |
| Red-sensitive opsin | OPN1LW | P04000 | t | Olfactory receptor 2B11 | OR2B11 | Q5JQS5 | olf | |
| Visual pigment-like receptor peropsin | RRH | O14718 | t | Olfactory receptor 2C1 | OR2C1 | O95371 | olf | |
| Olfactory receptor 1A1 | OR1A1 | Q9P1Q5 | olf | Olfactory receptor 2C3 | OR2C3 | Q8N628 | olf | |
| Olfactory receptor 1A2 | OR1A2 | Q9Y585 | olf | Olfactory receptor 2D2 | OR2D2 | Q9H210 | olf | |
| Olfactory receptor 1B1 | OR1B1 | Q8NGR6 | olf | Olfactory receptor 2D3 | OR2D3 | Q8NGH3 | olf | |
| Olfactory receptor 1C1 | OR1C1 | Q15619 | olf | Olfactory receptor 2F1 | OR2F1 | Q13607 | olf | |
| Olfactory receptor 1D2 | OR1D2 | P34982 | olf | Olfactory receptor 2F2 | OR2F2 | O95006 | olf | |
| Olfactory receptor 1F1 | OR1F1 | O43749 | olf | Olfactory receptor 2G2 | OR2G2 | Q8NGZ5 | olf | |
| Olfactory receptor 1F12 | OR1F12 | Q8NHA8 | olf | Olfactory receptor 2G3 | OR2G3 | Q8NGZ4 | olf | |
| Olfactory receptor 1G1 | OR1G1 | P47890 | olf | Olfactory receptor 2G6 | OR2G6 | Q5TZ20 | olf | |
| Olfactory receptor 1I1 | OR1I1 | O60431 | olf | Olfactory receptor 2H1 | OR2H1 | Q9GZK4 | olf | |
| Olfactory receptor 1J1 | OR1J1 | Q8NGS3 | olf | Olfactory receptor 2H2 | OR2H2 | O95918 | olf | |
| Olfactory receptor 1J2 | OR1J2 | Q8NGS2 | olf | Putative olfactory receptor 2I1 | OR2I1P | Q8NGU4 | olf | |
| Olfactory receptor 1J4 | OR1J4 | Q8NGS1 | olf | Olfactory receptor 2J1 | OR2J1 | Q9GZK6 | olf | |
| Olfactory receptor 1K1 | OR1K1 | Q8NGR3 | olf | Olfactory receptor 2J2 | OR2J2 | O76002 | olf | |
| Olfactory receptor 1L1 | OR1L1 | Q8NH94 | olf | Olfactory receptor 2J3 | OR2J3 | O76001 | olf | |
| Olfactory receptor 1L3 | OR1L3 | Q8NH93 | olf | Olfactory receptor 2K2 | OR2K2 | Q8NGT1 | olf | |
| Olfactory receptor 1L4 | OR1L4 | Q8NGR5 | olf | Olfactory receptor 2L2 | OR2L2 | Q8NH16 | olf | |
| Olfactory receptor 1L6 | OR1L6 | Q8NGR2 | olf | Olfactory receptor 2L3 | OR2L3 | Q8NG85 | olf | |
| Olfactory receptor 1L8 | OR1L8 | Q8NGR8 | olf | Olfactory receptor 2L5 | OR2L5 | Q8NG80 | olf | |
| Olfactory receptor 1M1 | OR1M1 | Q8NGA1 | olf | Olfactory receptor 2L8 | OR2L8 | Q8NGY9 | olf | |
| Olfactory receptor 1N1 | OR1N1 | Q8NGS0 | olf | Olfactory receptor 2L13 | OR2L13 | Q8N349 | olf | |
| Olfactory receptor 1N2 | OR1N2 | Q8NGR9 | olf | Olfactory receptor 2M2 | OR2M2 | Q96R28 | olf | |
| Olfactory receptor 1Q1 | OR1Q1 | Q15612 | olf | Olfactory receptor 2M3 | OR2M3 | Q8NG83 | olf | |
| Olfactory receptor 1S1 | OR1S1 | Q8NH92 | olf | Olfactory receptor 2M4 | OR2M4 | Q96R27 | olf | |
| Olfactory receptor 1S2 | OR1S2 | Q8NGQ3 | olf | Olfactory receptor 2M5 | OR2M5 | A3KFT3 | olf | |
| Olfactory receptor 2A2 | OR2A2 | Q6IF42 | olf | Olfactory receptor 2M7 | OR2M7 | Q8NG81 | olf | |
| Olfactory receptor 2A4 | OR2A4 | O95047 | olf | Olfactory receptor 2S2 | OR2S2 | Q9NQN1 | olf | |
| Olfactory receptor 2B2 | OR2B2 | Q9GZK3 | olf | Olfactory receptor 2T1 | OR2T1 | O43869 | olf | |
| Putative olfactory receptor 2B3 | OR2B3 | O76000 | olf | Olfactory receptor 2T2 | OR2T2 | Q6IF00 | olf | |
| Olfactory receptor 2B6 | OR2B6 | P58173 | olf | Olfactory receptor 2T3 | OR2T3 | Q8NH03 | olf | |
| Putative olfactory receptor 2B8 | OR2B8P | P59922 | olf | Olfactory receptor 2T4 | OR2T4 | Q8NH00 | olf | |
| Olfactory receptor 2T5 | OR2T5 | Q6IEZ7 | olf | Olfactory receptor 4E1 | OR4E1 | P0C645 | olf | |
| Olfactory receptor 2T6 | OR2T6 | Q8NHC8 | olf | Olfactory receptor 4E2 | OR4E2 | Q8NGC2 | olf | |
| Olfactory receptor 2T8 | OR2T8 | A6NH00 | olf | Olfactory receptor 4F3/4F16/4F29 | OR4F3 | Q6IEY1 | olf | |
| Olfactory receptor 2V1 | OR2V1 | Q8NHB1 | olf | Olfactory receptor 4F4 | OR4F4 | Q96R69 | olf | |
| Olfactory receptor 2V2 | OR2V2 | Q96R30 | olf | Olfactory receptor 4F5 | OR4F5 | Q8NH21 | olf | |
| Olfactory receptor 2W1 | OR2W1 | Q9Y3N9 | olf | Olfactory receptor 4F6 | OR4F6 | Q8NGB9 | olf | |
| Olfactory receptor 2W3 | OR2W3 | Q7Z3T1 | olf | Olfactory receptor 4K1 | OR4K1 | Q8NGD4 | olf | |
| Olfactory receptor 2Y1 | OR2Y1 | Q8NGV0 | olf | Olfactory receptor 4K2 | OR4K2 | Q8NGD2 | olf | |
| Olfactory receptor 2Z1 | OR2Z1 | Q8NG97 | olf | Olfactory receptor 4K3 | OR4K3 | Q96R72 | olf | |
| Olfactory receptor 3A1 | OR3A1 | P47881 | olf | Olfactory receptor 4K5 | OR4K5 | Q8NGD3 | olf | |
| Olfactory receptor 3A2 | OR3A2 | P47893 | olf | Olfactory receptor 4K13 | OR4K13 | Q8NH42 | olf | |
| Olfactory receptor 3A3 | OR3A3 | P47888 | olf | Olfactory receptor 4K14 | OR4K14 | Q8NGD5 | olf | |
| Olfactory receptor 3A4 | OR3A4 | P47883 | olf | Olfactory receptor 4K15 | OR4K15 | Q8NH41 | olf | |
| Putative olfactory receptor 4A4 | OR4A4P | Q8NGN8 | olf | Olfactory receptor 4K17 | OR4K17 | Q8NGC6 | olf | |
| Olfactory receptor 4A5 | OR4A5 | Q8NH83 | olf | Olfactory receptor 4L1 | OR4L1 | Q8NH43 | olf | |
| Olfactory receptor 4A8 | OR4A8P | P0C604 | olf | Olfactory receptor 4M1 | OR4M1 | Q8NGD0 | olf | |
| Olfactory receptor 4B1 | OR4B1 | Q8NGF8 | olf | Olfactory receptor 4M2 | OR4M2 | Q8NGB6 | olf | |
| Olfactory receptor 4C3 | OR4C3 | Q8NH37 | olf | Olfactory receptor 4N2 | OR4N2 | Q8NGD1 | olf | |
| Olfactory receptor 4C5 | OR4C5 | Q8NGB2 | olf | Olfactory receptor 4N4 | OR4N4 | Q8N0Y3 | olf | |
| Olfactory receptor 4C6 | OR4C6 | Q8NH72 | olf | Olfactory receptor 4N5 | OR4N5 | Q8IXE1 | olf | |
| Olfactory receptor 4C11 | OR4C11 | Q6IEV9 | olf | Olfactory receptor 4P4 | OR4P4 | Q8NGL7 | olf | |
| Olfactory receptor 4C12 | OR4C12 | Q96R67 | olf | Olfactory receptor 4Q2 | OR4Q2 | P0C623 | olf | |
| Olfactory receptor 4C13 | OR4C13 | Q8NGP0 | olf | Olfactory receptor 4Q3 | OR4Q3 | Q8NH05 | olf | |
| Olfactory receptor 4C15 | OR4C15 | Q8NGM1 | olf | Olfactory receptor 4S1 | OR4S1 | Q8NGB4 | olf | |
| Olfactory receptor 4C16 | OR4C16 | Q8NGL9 | olf | Olfactory receptor 4S2 | OR4S2 | Q8NH73 | olf | |
| Olfactory receptor 4D1 | OR4D1 | Q15615 | olf | Olfactory receptor 4X1 | OR4X1 | Q8NH49 | olf | |
| Olfactory receptor 4D2 | OR4D2 | P58180 | olf | Olfactory receptor 4X2 | OR4X2 | Q8NGF9 | olf | |
| Olfactory receptor 4D5 | OR4D5 | Q8NGN0 | olf | Olfactory receptor 5A1 | OR5A1 | Q8NGJ0 | olf | |
| Olfactory receptor 4D6 | OR4D6 | Q8NGJ1 | olf | Olfactory receptor 5A2 | OR5A2 | Q8NGI9 | olf | |
| Olfactory receptor 4D9 | OR4D9 | Q8NGE8 | olf | Olfactory receptor 5B2 | OR5B2 | Q96R09 | olf | |
| Olfactory receptor 4D10 | OR4D10 | Q8NGI6 | olf | Olfactory receptor 5B3 | OR5B3 | Q8NH48 | olf | |
| Olfactory receptor 4D11 | OR4D11 | Q8NGI4 | olf | Olfactory receptor 5B12 | OR5B12 | Q96R08 | olf | |
| Olfactory receptor 5B17 | OR5B17 | Q8NGF7 | olf | Olfactory receptor 6A2 | OR6A2 | O95222 | olf | |
| Olfactory receptor 5B21 | OR5B21 | A6NL26 | olf | Olfactory receptor 6B1 | OR6B1 | O95007 | olf | |
| Olfactory receptor 5C1 | OR5C1 | Q8NGR4 | olf | Olfactory receptor 6B2 | OR6B2 | Q6IFH4 | olf | |
| Olfactory receptor 5D13 | OR5D13 | Q8NGL4 | olf | Olfactory receptor 6B3 | OR6B3 | Q8NGW1 | olf | |
| Olfactory receptor 5D14 | OR5D14 | Q8NGL3 | olf | Olfactory receptor 6C1 | OR6C1 | Q96RD1 | olf | |
| Olfactory receptor 5D16 | OR5D16 | Q8NGK9 | olf | Olfactory receptor 6C2 | OR6C2 | Q9NZP2 | olf | |
| Olfactory receptor 5D18 | OR5D18 | Q8NGL1 | olf | Olfactory receptor 6C3 | OR6C3 | Q9NZP0 | olf | |
| Olfactory receptor 5F1 | OR5F1 | O95221 | olf | Olfactory receptor 6C4 | OR6C4 | Q8NGE1 | olf | |
| Olfactory receptor 5H1 | OR5H1 | A6NKK0 | olf | Olfactory receptor 6C6 | OR6C6 | A6NF89 | olf | |
| Olfactory receptor 5H2 | OR5H2 | Q8NGV7 | olf | Olfactory receptor 6F1 | OR6F1 | Q8NGZ6 | olf | |
| Olfactory receptor 5H6 | OR5H6 | Q8NGV6 | olf | Olfactory receptor 6J1 | OR6J1 | Q8NGC5 | olf | |
| Olfactory receptor 5I1 | OR5I1 | Q13606 | olf | Olfactory receptor 6K2 | OR6K2 | Q8NGY2 | olf | |
| Olfactory receptor 5J2 | OR5J2 | Q8NH18 | olf | Olfactory receptor 6K3 | OR6K3 | Q8NGY3 | olf | |
| Olfactory receptor 5K1 | OR5K1 | Q8NHB7 | olf | Olfactory receptor 6K6 | OR6K6 | Q8NGW6 | olf | |
| Olfactory receptor 5K2 | OR5K2 | Q8NHB8 | olf | Olfactory receptor 6M1 | OR6M1 | Q8NGM8 | olf | |
| Olfactory receptor 5K3 | OR5K3 | A6NET4 | olf | Olfactory receptor 6N1 | OR6N1 | Q8NGY5 | olf | |
| Olfactory receptor 5K4 | OR5K4 | A6NMS3 | olf | Olfactory receptor 6N2 | OR6N2 | Q8NGY6 | olf | |
| Olfactory receptor 5L1 | OR5L1 | Q8NGL2 | olf | Olfactory receptor 6P1 | OR6P1 | Q8NGX9 | olf | |
| Olfactory receptor 5L2 | OR5L2 | Q8NGL0 | olf | Olfactory receptor 6Q1 | OR6Q1 | Q8NGQ2 | olf | |
| Olfactory receptor 5M1 | OR5M1 | Q8NGP8 | olf | Olfactory receptor 6S1 | OR6S1 | Q8NH40 | olf | |
| Olfactory receptor 5M3 | OR5M3 | Q8NGP4 | olf | Olfactory receptor 6T1 | OR6T1 | Q8NGN1 | olf | |
| Olfactory receptor 5M8 | OR5M8 | Q8NGP6 | olf | Olfactory receptor 6V1 | OR6V1 | Q8N148 | olf | |
| Olfactory receptor 5M9 | OR5M9 | Q8NGP3 | olf | Olfactory receptor 6X1 | OR6X1 | Q8NH79 | olf | |
| Olfactory receptor 5M10 | OR5M10 | Q6IEU7 | olf | Olfactory receptor 6Y1 | OR6Y1 | Q8NGX8 | olf | |
| Olfactory receptor 5M11 | OR5M11 | Q96RB7 | olf | Olfactory receptor 7A5 | OR7A5 | Q15622 | olf | |
| Olfactory receptor 5P2 | OR5P2 | Q8WZ92 | olf | Olfactory receptor 7A10 | OR7A10 | O76100 | olf | |
| Olfactory receptor 5P3 | OR5P3 | Q8WZ94 | olf | Olfactory receptor 7A17 | OR7A17 | O14581 | olf | |
| Olfactory receptor 5R1 | OR5R1 | Q8NH85 | olf | Olfactory receptor 7C1 | OR7C1 | O76099 | olf | |
| Olfactory receptor 5T1 | OR5T1 | Q8NG75 | olf | Olfactory receptor 7C2 | OR7C2 | O60412 | olf | |
| Olfactory receptor 5T2 | OR5T2 | Q8NGG2 | olf | Olfactory receptor 7D4 | OR7D4 | Q8NG98 | olf | |
| Olfactory receptor 5T3 | OR5T3 | Q8NGG3 | olf | Olfactory receptor 7G1 | OR7G1 | Q8NGA0 | olf | |
| Olfactory receptor 5W2 | OR5W2 | Q8NH69 | olf | Olfactory receptor 7G2 | OR7G2 | Q8NG99 | olf | |
| Olfactory receptor 7G3 | OR7G3 | Q8NG95 | olf | Prostaglandin F2-α receptor | PTGFR | P43088 | q/11 | |
| Olfactory receptor 8A1 | OR8A1 | Q8NGG7 | olf | Prostacyclin receptor | PTGIR | P43119 | s | |
| Olfactory receptor 8B3 | OR8B3 | Q8NGG8 | olf | Prolactin-releasing peptide receptor | PRLHR | P49683 | unknown | |
| Olfactory receptor 8B4 | OR8B4 | Q96RC9 | olf | Platelet-activating factor receptor | PTAFR | P25105 | q/11 | |
| Olfactory receptor 8B8 | OR8B8 | Q15620 | olf | Pyroglutamylated RFamide peptide receptor | QRFPR | Q96P65 | q/11 | |
| Olfactory receptor 8B12 | OR8B12 | Q8NGG6 | olf | RPE-retinal G protein-coupled receptor | RGR | P47804 | t | |
| Olfactory receptor 8D1 | OR8D1 | Q8WZ84 | olf | Sphingosine 1-phosphate receptor 1 | S1PR1 | P21453 | i | |
| Olfactory receptor 8D2 | OR8D2 | Q9GZM6 | olf | Sphingosine 1-phosphate receptor 2 | S1PR2 | O95136 | i, q/11 | |
| Olfactory receptor 8D4 | OR8D4 | Q8NGM9 | olf | Sphingosine 1-phosphate receptor 3 | S1PR3 | Q99500 | i, q/11, 12/13 | |
| Orexin receptor type 1 | HCRTR1 | O43613 | q/11 | Sphingosine 1-phosphate receptor 4 | S1PR4 | O95977 | i | |
| Orexin receptor type 2 | HCRTR2 | O43614 | q/11 | Sphingosine 1-phosphate receptor 5 | S1PR5 | Q9H228 | i | |
| Oxoeicosanoid receptor 1 | OXER1 | Q8TDS5 | i | Somatostatin receptor type 1 | SSTR1 | P30872 | i | |
| Oxytocin receptor | OXTR | P30559 | q/11 | Somatostatin receptor type 2 | SSTR2 | P30874 | i | |
| P2Y purinoceptor 1 | P2RY1 | P47900 | q/11 | Somatostatin receptor type 3 | SSTR3 | P32745 | i | |
| P2Y purinoceptor 2 | P2RY2 | P41231 | q/11 | Somatostatin receptor type 4 | SSTR4 | P31391 | i | |
| P2Y purinoceptor 4 | P2RY4 | P51582 | i | Somatostatin receptor type 5 | SSTR5 | P35346 | i | |
| P2Y purinoceptor 6 | P2RY6 | Q15077 | q/11 | Thromboxane A2 receptor | TBXA2R | P21731 | q/11, 13 | |
| P2Y purinoceptor 8 | P2RY8 | Q86VZ1 | unknown | Trace amine-associated receptor 1 | TAAR1 | Q96RJ0 | s | |
| Putative P2Y purinoceptor 10 | P2RY10 | O00398 | q/11 | Trace amine-associated receptor 2 | TAAR2 | Q9P1P5 | s | |
| P2Y purinoceptor 11 | P2RY11 | Q96G91 | s, q/11 | Putative trace amine-associated receptor 3 | TAAR3 | Q9P1P4 | s | |
| P2Y purinoceptor 12 | P2RY12 | Q9H244 | i | Trace amine-associated receptor 5 | TAAR5 | O14804 | s | |
| P2Y purinoceptor 13 | P2RY13 | Q9BPV8 | i | Trace amine-associated receptor 6 | TAAR6 | Q96RI8 | s | |
| P2Y purinoceptor 14 | P2RY14 | Q15391 | i | Trace amine-associated receptor 8 | TAAR8 | Q969N4 | s | |
| Proteinase-activated receptor 1 | F2R | P25116 | q/11 | Trace amine-associated receptor 9 | TAAR9 | Q96RI9 | s | |
| Proteinase-activated receptor 2 | F2RL1 | P55085 | q/11 | Thyrotropin receptor | TSHR | P16473 | s | |
| Proteinase-activated receptor 3 | F2RL2 | O00254 | q/11 | Vasopressin V1a receptor | AVPR1A | P37288 | q/11 | |
| Proteinase-activated receptor 4 | F2RL3 | Q96RI0 | q/11 | Vasopressin V1b receptor | AVPR1B | P47901 | q/11 | |
| Prostaglandin D2 receptor | PTGDR | Q13258 | s | Vasopressin V2 receptor | AVPR2 | P30518 | s | |
| Prostaglandin E2 receptor EP1 subtype | PTGER1 | P34995 | q/11 | Chemokine XC receptor 1 | XCR1 | P46094 | q/11 | |
| Prostaglandin E2 receptor EP2 subtype | PTGER2 | P43116 | s | |||||
| Prostaglandin E2 receptor EP3 subtype | PTGER3 | P43115 | i | |||||
| Prostaglandin E2 receptor EP4 subtype | PTGER4 | P35408 | s |