| Nomenclature | GDNF family receptor α1 | GDNF family receptor α2 | GDNF family receptor α3 | GDNF family receptor α4 |
| HGNC, UniProt | GFRA1, P56159 | GFRA2, O00451 | GFRA3, O60609 | GFRA4, Q9GZZ7 |
| Common abreviation | GFRα1 | GFRα2 | GFRα3 | GFRα4 |
| Potency order | GDNF (GDNF, P39905) >neurturin (NRTN, Q99748) >artemin (ARTN, Q5T4W7) | neurturin (NRTN, Q99748) >GDNF (GDNF, P39905) | artemin (ARTN, Q5T4W7) | persephin (PSPN, O60542) |
| Labelled ligands | [125I]GDNF (rat) (pK d 10.2–11.5) [90, 180] | – | – | – |
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