Class A | Class B | Class C | Frizzled Family

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CLASS A

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Family name Receptor code Ligand Official IUPHAR receptor name Human gene name Rat gene name Mouse gene name Comment
5-Hydroxytryptamine receptors 2.1:5HT:1:5HT1A 5-hydroxytryptamine 5-HT1A HTR1A Htr1a Htr1a
5-Hydroxytryptamine receptors 2.1:5HT:2:5HT1B 5-hydroxytryptamine 5-HT1B HTR1B Htr1b Htr1b
5-Hydroxytryptamine receptors 2.1:5HT:3:5HT1D 5-hydroxytryptamine 5-HT1D HTR1D Htr1d Htr1d
5-Hydroxytryptamine receptors 2.1:5HT:4:5HT1E 5-hydroxytryptamine 5-ht1e HTR1E
5-Hydroxytryptamine receptors 2.1:5HT:5:5HT1F 5-hydroxytryptamine 5-HT1F HTR1F Htr1f Htr1f
5-Hydroxytryptamine receptors 2.1:5HT:6:5HT2A 5-hydroxytryptamine 5-HT2A HTR2A Htr2a Htr2a
5-Hydroxytryptamine receptors 2.1:5HT:7:5HT2B 5-hydroxytryptamine 5-HT2B HTR2B Htr2b Htr2b
5-Hydroxytryptamine receptors 2.1:5HT:8:5HT2C 5-hydroxytryptamine 5-HT2C HTR2C Htr2c Htr2c
5-Hydroxytryptamine receptors 2.1:5HT:9:5HT4 5-hydroxytryptamine 5-HT4 HTR4 Htr4 Htr4
5-Hydroxytryptamine receptors 5-hydroxytryptamine 5-ht5a HTR5A Htr5a Htr5a
5-Hydroxytryptamine receptors 2.1:5HT:10:5HT6 5-hydroxytryptamine 5-HT6 HTR6 Htr6 Htr6
5-Hydroxytryptamine receptors 2.1:5HT:11:5HT7 5-hydroxytryptamine 5-HT7 HTR7 Htr7 Htr7

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Family name Receptor code Ligand Official IUPHAR receptor name Human gene name Rat gene name Mouse gene name Comment
Acetylcholine receptors (muscarinic) 2.1:ACH:1:M1A: acetylcholine M1 CHRM1 Chrm1 Chrm1
Acetylcholine receptors (muscarinic) 2.1:ACH:2:M2A: acetylcholine M2 CHRM2 Chrm2 Chrm2
Acetylcholine receptors (muscarinic) 2.1:ACH:3:M1B: acetylcholine M3 CHRM3 Chrm3 Chrm3
Acetylcholine receptors (muscarinic) 2.1:ACH:4:M2B: acetylcholine M4 CHRM4 Chrm4 Chrm4
Acetylcholine receptors (muscarinic) 2.1:ACH:5:M1C: acetylcholine M5 CHRM5 Chrm5 Chrm5
Adenosine receptors 2.1:ADO:1:A1 adenosine A1 ADORA1 Adora1 Adora1
Adenosine receptors 2.1:ADO:2:A2A adenosine A2A ADORA2A Adora2a Adora2a
Adenosine receptors 2.1:ADO:3:A2B adenosine A2B ADORA2B Adora2b Adora2b
Adenosine receptors 2.1:ADO:4:A3 adenosine A3 ADORA3 Adora3 Adora3
Adrenoceptors 2.1:ADR:1:A1A noradrenaline α1A-adrenoceptor ADRA1A Adra1a Adra1a
Adrenoceptors 2.1:ADR:2:A1B adrenaline α1B-adrenoceptor ADRA1B Adra1b Adra1b
Adrenoceptors 2.1:ADR:3:A1D adrenaline α1D-adrenoceptor ADRA1D Adra1d Adra1d
Adrenoceptors 2.1:ADR:4:A2A adrenaline α2A-adrenoceptor ADRA2A Adra2a Adra2a
Adrenoceptors 2.1:ADR:5:A2B adrenaline α2B-adrenoceptor ADRA2B Adra2b Adra2b
Adrenoceptors 2.1:ADR:6:A2C adrenaline α2C-adrenoceptor ADRA2C Adra2c Adra2c
Adrenoceptors 2.1:ADR:7:B1 noradrenaline β1-adrenoceptor ADRB1 Adrb1 Adrb1
Adrenoceptors 2.1:ADR:8:B2 adrenaline β2-adrenoceptor ADRB2 Adrb2 Adrb2
Adrenoceptors 2.1:ADR:9:B3 adrenaline β3-adrenoceptor ADRB3 Adrb3 Adrb3
Anaphylatoxin receptors N/A anaphylatoxin C5a, C5a des Arg74 C5L2 GPR77 Gpr77 Gpr77
Anaphylatoxin receptors N/A anaphylatoxin C5a C5a C5R1 C5r1 C5r1
Anaphylatoxin receptors N/A anaphylatoxin C3a C3a C3AR1 C3ar1 C3ar1
Angiotensin receptors 2.1:ANG:1:AT1 angiotensin AT1 AGTR1 Agtr1b Agtr1b
Angiotensin receptors 2.1:ANG:2:AT2 angiotensin AT2 AGTR2 Agtr2 Agtr2
Apelin receptor 2.1:APJ:1:APJ: apelin APJ AGTRL1 Agtrl1 Agtrl1

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Family name Receptor code Ligand Official IUPHAR receptor name Human gene name Rat gene name Mouse gene name Comment
Bile acid receptor 2.1:BA:1:GPBA bile acids GPBA GPBAR1 Gpbar1 Gpbar1
Bombesin receptors 2.1:BB:1:BB1: neuromedin B BB1 NMBR Nmbr Nmbr
Bombesin receptors 2.1:BB:2:BB2: gastrin-releasing peptide BB2 GRPR Grpr Grpr
Bombesin receptors 2.1:BB:3:BB3: BB3 BRS3 Brs3 Brs3
Bradykinin receptors 2.1:BK:1:B1: bradykinin B1 BDKRB1 Bdkrb1 Bdkrb1
Bradykinin receptors 2.1:BK:2:B2: bradykinin B2 BDKRB2 Bdkrb2 Bdkrb2

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Family name Receptor code Ligand Official IUPHAR receptor name Human gene name Rat gene name Mouse gene name Comment
Cannabinoid receptors 2.1:CBD:1:CB1 cannabinoid CB1 CNR1 Cnr1 Cnr1
Cannabinoid receptors 2.1:CBD:2:CB2 cannabinoid CB2 CNR2 Cnr2 Cnr2
Chemokine receptors 2.1:CHK:1:CXC1 CXCL8 CXCR1 IL8RA Il8ra Il8ra
Chemokine receptors 2.1:CHK:2:CXC2 CXCL1-3, CXCL5-8, macrophage derived lectin CXCR2 IL8RB Il8rb Il8rb macrophage derived lectin is a proposed ligand, single publication
Chemokine receptors 2.1:CHK:3:CXC3 CXCL9-11 CXCR3 CXCR3 Cxcr3 Cxcr3
Chemokine receptors 2.1:CHK:4:CXC4 CXCL12 CXCR4 CXCR4 Cxcr4 Cxcr4
Chemokine receptors 2.1:CHK:5:CXC5 CXCL13 CXCR5 CXCR5 Blr1 Blr1
Chemokine receptors 2.1:CHK:6:CC1 CCL3, CCL5, CCL7, CCL8, CCL13-16, CCL23 CCR1 CCR1 Ccr1 Ccr1
Chemokine receptors 2.1:CHK:7:CC2 CCL2, CCL7, CCL8, CCL13 CCR2 CCR2 Ccr2 Ccr2
Chemokine receptors 2.1:CHK:8:CC3 CCL11 (eotaxin); CCL5, CCL7, CCL8, CCL13, CCL15, CCL24, CCL26 CCR3 CCR3 Ccr3 Ccr3
Chemokine receptors 2.1:CHK:9:CC4 CCL17, CCL22 CCR4 CCR4 Ccr4 Ccr4
Chemokine receptors 2.1:CHK:10:CC5 CCL3, CCL4, CCL5, CCL8, CCL14 CCR5 CCR5 Ccr5 Ccr5
Chemokine receptors 2.1:CHK:11:CC6 CCL20 CCR6 CCR6 Ccr6 Ccr6
Chemokine receptors 2.1:CHK:12:CC7 CCL19, CCL21 CCR7 CCR7 Ccr7 Ccr7
Chemokine receptors 2.1:CHK:13:CC8 CCL1, CCL4, CCL17 CCR8 CCR8 Ccr8 Ccr8
Chemokine receptors 2.1:CHK:14:CC9 CCL25 CCR9 CCR9 Ccr9 Ccr9
Chemokine receptors 2.1:CHK:15:CC10 CCL26-28 CCR10 CCR10 Gpr2 Gpr2
Chemokine receptors 2.1:CHK:17:CX3C1 CX3CL1 CX3CR1 CX3CR1 Cx3cr1 Cx3cr1
Chemokine receptors 2.1:CHK:18:XC1 XCL1, XCL2 XCR1 XCR1 Xcr1 Xcr1
Chemokine receptors 2.1:CHK:19:CXC6 CXCL16 CXCR6 CXCR6 Cxcr6 Cxcr6