| GPCR | G protein-coupled receptor |
| D2R | Dopamine D2 receptor |
| A2AR | Adenosine A2A receptor |
| HC | Healthy control |
| PD | Parkinson’s disease |
| 6-OHDA | 6-hydroxydopamine |
| S/B | Signal-to-background |
| HTS | High throughput screening |
| LBD | Lewy body disease |
| l-DOPA | 3,4-Dihydroxy-l-phenylalanine |
| BCA | Bicinchoninic acid assay |
| SDS/PAGE | Sodium dodecyl sulfate/polyacrylamide gel electrophoresis |