Organisation of the GFRα-3 locus
| Exon No | Exon size (bp) | Base pair No | Flanking sequence | ||
| 1 | 91 | 1–91 | ATGGTGCGCC | . . . | CTCGCAGCCGgtgagtgtca |
| 2 | 288 | 92–379 | tcctttacagGAGACCCCCT | . . . | CGCAGCCTTGgtgaggctcc |
| 3 | 93 | 380–472 | ttgtctctagGTAACTATGA | . . . | CTCAAACCAGgtgtggaggg |
| 4 | 313 | 473–785 | ttccccccagACTCAGACCT | . . . | CGCTTTGCAGgtgtgtagtt |
| 5 | 104 | 786–889 | cttcttccagATCACGCCTG | . . . | GGGCTGATTGgtgaggctgg |
| 6 | 135 | 890–1024 | ctcttcacagGGACTGCCAT | . . . | CCCTGCCTCAgtgagtgtgc |
| 7 | 89 | 1025–1113 | ctctcttcagCGGAGGCCAT | . . . | GGCACACCAGgtagggcctc |
| 8 | 90 | 1114–1203 | tcttccacagAATGAAAACC | . . . | CCTATGGTAG |