| Index | Gene Name Primary | Protein Name | Gene Name Synonym | Uniprot ID |
| 1 | CASR | Extracellular calcium-sensing receptor | GPRC2A PCAR1 | P41180 |
| 2 | GABBR1 | Gamma-aminobutyric acid type B receptor subunit 1 | GPRC3A | Q9UBS5 |
| 3 | GABBR2 | Gamma-aminobutyric acid type B receptor subunit 2 | GPR51 GPRC3B | O75899 |
| 4 | GPR156 | Probable G-protein coupled receptor 156 | GABABL PGR28 | Q8NFN8 |
| 5 | GPR158 | Probable G-protein coupled receptor 158 | KIAA1136 | Q5T848 |
| 6 | GPR179 | Probable G-protein coupled receptor 179 | GPR158L GPR158L1 | Q6PRD1 |
| 7 | GPRC5A | Retinoic acid-induced protein 3 | GPCR5A RAI3 RAIG1 | Q8NFJ5 |
| 8 | GPRC5B | G-protein coupled receptor family C group 5 member B | RAIG2 | Q9NZH0 |
| 9 | GPRC5C | G-protein coupled receptor family C group 5 member C | RAIG3 | Q9NQ84 |
| 10 | GPRC5D | G-protein coupled receptor family C group 5 member D | | Q9NZD1 |
| 11 | GPRC6A | G-protein coupled receptor family C group 6 member A | | Q5T6X5 |
| 12 | GRM1 | Metabotropic glutamate receptor 1 | GPRC1A MGLUR1 | Q13255 |
| 13 | GRM2 | Metabotropic glutamate receptor 2 | GPRC1B MGLUR2 | Q14416 |
| 14 | GRM3 | Metabotropic glutamate receptor 3 | GPRC1C MGLUR3 | Q14832 |
| 15 | GRM4 | Metabotropic glutamate receptor 4 | GPRC1D MGLUR4 | Q14833 |
| 16 | GRM5 | Metabotropic glutamate receptor 5 | GPRC1E MGLUR5 | P41594 |
| 17 | GRM6 | Metabotropic glutamate receptor 6 | GPRC1F MGLUR6 | O15303 |
| 18 | GRM7 | Metabotropic glutamate receptor 7 | GPRC1G MGLUR7 | Q14831 |
| 19 | GRM8 | Metabotropic glutamate receptor 8 | GPRC1H MGLUR8 | O00222 |
| 20 | TAS1R1 | Taste receptor type 1 member 1 | GPR70 T1R1 TR1 | Q7RTX1 |
| 21 | TAS1R2 | Taste receptor type 1 member 2 | GPR71 T1R2 TR2 | Q8TE23 |
| 22 | TAS1R3 | Taste receptor type 1 member 3 | T1R3 TR3 | Q7RTX0 |